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  1. Link

    sc35-antibody-sc-35-nuclear-speckle-marker-ab11826.pdf

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Epigenetics and Nuclear Signaling DNA / RNA RNA Processing Splicing
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Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)

  • Datasheet
  • SDS
Reviews (15)Q&A (16)References (109)

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Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)

Key features and details

  • Mouse monoclonal [SC-35] to SC35 - Nuclear Speckle Marker
  • Suitable for: ICC/IF
  • Reacts with: Mouse, Rat, Human
  • Isotype: IgG1

You may also be interested in

Protein
Product image
Recombinant Human SC35 protein (ab152674)
Secondary
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Goat Anti-Mouse IgG H&L (HRP) (ab205719)
Primary
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Anti-Sumo 1 antibody [Y299] - BSA and Azide free (ab219724)

View more associated products

Overview

  • Product name

    Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker
    See all SC35 primary antibodies
  • Description

    Mouse monoclonal [SC-35] to SC35 - Nuclear Speckle Marker
  • Host species

    Mouse
  • Specificity

    This antibody recognizes a phospho-epitope of the non-snRNP (small nuclear ribonucleoprotein particles) factor SC35. The antibody reacts with the splicing factor SC-35 and with the SC-35-related non-snRNP factor SF2/ASF.  Recent data suggests this clone may cross-react with additional proteins within the spliceosome complex (PMID: 33095160)

  • Tested applications

    Suitable for: ICC/IFmore details
    Unsuitable for: WB
  • Species reactivity

    Reacts with: Mouse, Rat, Human
    Predicted to work with: Xenopus laevis, Drosophila melanogaster, Rhesus monkey, Newt
  • Immunogen

    Other Immunogen Type. Fractioned spliceosome complex (PMID: 2137203)

  • Positive control

    • ICC/IF: MCF7, NIH3T3 and Rin-5F cells
  • General notes

    This antibody clone is manufactured by Abcam. If you require a custom buffer formulation or conjugation for your experiments, please contact orders@abcam.com.

    The Life Science industry has been in the grips of a reproducibility crisis for a number of years. Abcam is leading the way in addressing this with our range of recombinant monoclonal antibodies and knockout edited cell lines for gold-standard validation. Please check that this product meets your needs before purchasing.

    If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, along with publications, customer reviews and Q&As

Properties

  • Form

    Liquid
  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage buffer

    pH: 7.40
    Preservative: 0.02% Sodium azide
    Constituents: 93% PBS, 6.97% L-Arginine
  • Concentration information loading...
  • Purity

    Protein G purified
  • Clonality

    Monoclonal
  • Clone number

    SC-35
  • Isotype

    IgG1
  • Research areas

    • Epigenetics and Nuclear Signaling
    • DNA / RNA
    • RNA Processing
    • Splicing
    • Tags & Cell Markers
    • Subcellular Markers
    • Nucleus
    • Other Nuclear Bodies

Associated products

  • Alternative Versions

    • Anti-SC35 antibody [SC-35] - BSA and Azide free (ab264431)
  • Compatible Secondaries

    • Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) (ab150113)
    • Goat Anti-Mouse IgG H&L (HRP) (ab205719)
  • Isotype control

    • Mouse IgG1, kappa monoclonal [15-6E10A7] - Isotype Control (ab170190)
  • Recombinant Protein

    • Recombinant Human SC35 protein (ab152674)

Applications

The Abpromise guarantee

Our Abpromise guarantee covers the use of ab11826 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ICC/IF (8)
Use a concentration of 5 µg/ml.
Notes
ICC/IF
Use a concentration of 5 µg/ml.
Application notes
Is unsuitable for WB.

Target

  • Function

    Necessary for the splicing of pre-mRNA. It is required for formation of the earliest ATP-dependent splicing complex and interacts with spliceosomal components bound to both the 5'- and 3'-splice sites during spliceosome assembly. It also is required for ATP-dependent interactions of both U1 and U2 snRNPs with pre-mRNA. Interacts with other spliceosomal components, via the RS domains, to form a bridge between the 5'- and 3'-splice site binding components, U1 snRNP and U2AF. Binds to purine-rich RNA sequences, either 5'-AGSAGAGTA-3' (S=C or G) or 5'-GTTCGAGTA-3'. Can bind to beta-globin mRNA and commit it to the splicing pathway.
  • Sequence similarities

    Belongs to the splicing factor SR family.
    Contains 1 RRM (RNA recognition motif) domain.
  • Post-translational
    modifications

    Extensively phosphorylated on serine residues in the RS domain.
  • Cellular localization

    Nucleus.
  • Target information above from: UniProt accession Q01130 The UniProt Consortium
    The Universal Protein Resource (UniProt) in 2010
    Nucleic Acids Res. 38:D142-D148 (2010) .

    Information by UniProt
  • Database links

    • Entrez Gene: 6427 Human
    • Entrez Gene: 20382 Mouse
    • Entrez Gene: 494445 Rat
    • Entrez Gene: 708105 Rhesus monkey
    • Omim: 600813 Human
    • SwissProt: Q01130 Human
    • SwissProt: Q62093 Mouse
    • SwissProt: Q6PDU1 Rat
    • Unigene: 584801 Human
    • Unigene: 21841 Mouse
    • Unigene: 429312 Mouse
    • Unigene: 136644 Rat
    see all
  • Alternative names

    • 35 kDa antibody
    • arginine/serine-rich 2 antibody
    • PR264 antibody
    • Protein PR264 antibody
    • SC 35 antibody
    • SC-35 antibody
    • SC35 antibody
    • Serine/arginine-rich splicing factor 2 antibody
    • SFRS 2 antibody
    • SFRS2 antibody
    • SFRS2A antibody
    • Splicing component 35 kDa antibody
    • Splicing component antibody
    • Splicing factor antibody
    • Splicing factor arginine/serine rich 2 antibody
    • Splicing factor SC35 antibody
    • Splicing speckle antibody
    • Splicing speckles antibody
    • SR splicing factor 2 antibody
    • SRp30b antibody
    • SRSF2 antibody
    • SRSF2_HUMAN antibody
    see all

Images

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)

    ab11826 staining SC35 - Nuclear Speckle Marker in Rin-5F cells. The cells were fixed with 100% methanol (5 min), permeabilized with 0.1% PBS-Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated overnight at 4°C with ab11826 at 5µg/ml and ab6046, Rabbit polyclonal to beta Tubulin - Loading Control. Cells were then incubated with ab150117, Goat polyclonal Secondary Antibody to Mouse IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 dilution (shown in green) and ab150080, Goat polyclonal Secondary Antibody to Rabbit IgG - H&L (Alexa Fluor® 594) at 1/1000 dilution (shown in pseudocolour red). Nuclear DNA was labelled with DAPI (shown in blue).

    Also suitable in cells fixed with 4% paraformaldehyde (10 min).

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)

    ab11826 staining SC35 - Nuclear Speckle Marker in NIH3T3 cells. The cells were fixed with 4% paraformaldehyde (10 min), permeabilized with 0.1% PBS-Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated overnight at 4°C with ab11826 at 5µg/ml and ab6046, Rabbit polyclonal to beta Tubulin - Loading Control. Cells were then incubated with ab150117, Goat polyclonal Secondary Antibody to Mouse IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 dilution (shown in green) and ab150080, Goat polyclonal Secondary Antibody to Rabbit IgG - H&L (Alexa Fluor® 594) at 1/1000 dilution (shown in pseudocolour red). Nuclear DNA was labelled with DAPI (shown in blue).

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)

    ab11826 staining SC35 - Nuclear Speckled Marker in MCF7 cells. The cells were fixed with 4% paraformaldehyde (10 min), permeabilized with 0.1% PBS-Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated overnight at 4°C with ab11826 at 5µg/ml and ab6046, Rabbit polyclonal to beta Tubulin - Loading Control. Cells were then incubated with ab150117, Goat polyclonal Secondary Antibody to Mouse IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 dilution (shown in green) and ab150080, Goat polyclonal Secondary Antibody to Rabbit IgG - H&L (Alexa Fluor® 594) at 1/1000 dilution (shown in pseudocolour red). Nuclear DNA was labelled with DAPI (shown in blue).

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)Image from Witek, Matthew E. et al. PLoS ONE 9.8 (2014): e104293. doi: 10.1371/journal.pone.0104293. Fig 5. Reproduced under the Creative Commons license http://creativecommons.org/licenses/by/4.0/

    Immunocytochemistry/ Immunofluorescence analysis of HEK-293T and RKO cells transiently transfected with CDX2/AS-His and co-stained for CDX2/AS-His and SC35 (ab11826). All proteins localized to the nucleus and merged images revealed co-localization of CDX2/AS with SC35.

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)This image is courtesy of an abreview submitted by Dr Sam Nowitzki, Barrow Neurological Institute.

    Immunocytochemistry/ Immunofluorescence analysis of HEK-293 human kidney cells labeling SC35 with ab11826 at 1/400 dilution. Cells were fixed with methanol and blocked with PBS for 1 hour at 4°C. Staining with ab11826 was carried out in PBS buffer for 2 hours at 4°C. An undiluted goat anti-mouse Alexa Fluor® 594 secondary antibody was used. 

    See Abreview

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)Image from Salsman, Jayme et al. PLoS Pathogens 4.7 (2008): e1000100. doi: 10.1371/journal.ppat.1000100. Fig S4. Reproduced under the Creative Commons license http://creativecommons.org/licenses/by/4.0/

    Immunocytochemistry/ Immunofluorescence analysis of untransfected U-2 OS cells (A) and cells transfected with HSV US1 or US1.5 fixed and stained for FLAG (red) and SC35 (green) to identify viral proteins and nuclear speckles respectively. Transfected cells were fixed 40 h post transfection with 3.7% formaldehyde in PBS (20 min), permeabilized with 0.5% Triton X-100 in PBS (10 min), and blocked with 4% BSA in PBS (20 min) prior to incubation with Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826) and secondary antibodies in 4% BSA in PBS. DAPI was used for visualization of nuclear DNA. Scale bar  =  10 µm.

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)This image is courtesy of an Abreview submitted by Dr Eva Bartova

    Immunocytochemistry/ Immunofluorescence analysis of human adenocarcinoma HT-29 (Human colorectal adenocarcinoma cell line) cells labeling SC35 with ab11826 at 1/200 dilution. Cells were fixed in paraformaldehyde and permeabilized with Triton X-100 and Saponin. Blocking of the cells was done with 1% BSA for 1 hour at 37°C; staining with ab11826 at 1/200 was carried out for 16 hours at 4°C in PBS buffer. An anti-mouse IgG3 (Alexa Fluor® 594) secondary antibody was used at 1/200 dilution. 

    See Abreview

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)This image is courtesy of an abreview submitted by Dr Sam Nowitzki, Barrow Neurological Institute.

    Immunocytochemistry/ Immunofluorescence analysis of  human hippocampus cells labeling SC35 with ab11826 at 1/200 dilution. Cells were fixed with formaldehyde and blocked with PBS for 1 hour at 4°C. Staining with ab11826 was carried out in PBS buffer for 12 hours at 4°C. A goat anti-mouse Alexa Fluor® 594 secondary antibody was used at 1/1000 dilution. 

    See Abreview

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)This image is courtesy of an anonymous Abreview.

    ab11826 staining SC35 in human fibroblast cells by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with paraformaldehyde, permeabilized with 0.3% Triton X-100 in PBS and blocked with 5% Normal Goat Serum/0.3% Triton X-100 in PBS for 60 minutes at 25°C. Samples were incubated with primary antibody (1/500 in 1% BSA/ 0.3% Triton X-100 in PBS) for 16 hours at 4°C. An Alexa Flour® 488 goat anti-mouse IgG (H+L), F(ab')2 Fragment Ig was used as the secondary antibody at a dilution of 1/1000.

    See Abreview

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)This image is courtesy of an Abreview submitted by Dr Kirk McManus

    ab11826 (1/1000) staining SC35 (phospho) in human retinal pigment epithelial (RPE) cells (green). Cells were fixed in paraformaldehyde, permeabilized with 0.5% Triton X-100/PBS and counterstained with DAPI in order to highlight the nucleus (blue). Please refer to abreview for further experimental details.

    See Abreview

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)This image is courtesy of an Abreview submitted by Dr Eva Bartova

    ab11826 staining cultured human colon adenocarcinoma HT-29 cells.

    Cells were PFA fixed and permeabilized in Triton X-100 and saponin prior to blocking with 1% BSA for 1 hour at RT. The primary antibody was diluted 1/200 and incubated with the sample for 16 hours at 4°C. An Alexa Fluor® 594 conjugated goat anti-mouse IgG3 antibody was used as the secondary.

    See Abreview

  • Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)
    Immunocytochemistry/ Immunofluorescence - Anti-SC35 antibody [SC-35] - Nuclear Speckle Marker (ab11826)Image from de Chiara C et al, PLoS One. 2009 Dec 23;4(12):e8372, Fig 3.

    HeLa (Human epithelial cell line from cervix adenocarcinoma) cells were fixed 24–48 hours after transfection using 4% paraformaldehyde, permeabilized with 0.2% triton X-100/PBS and probed with ab11826 followed by FITC conjugated secondary antibodies (green). After washing with PBS, slides were mounted using Citifluor and analysed by confocal microscopy. Cells were visualized under a Leica laser scanning confocal microscope equipped with a DM-RXE microscope and an argon-krypton laser.

Protocols

  • Recommended ICC protocol with ab11826
  • Mouse on Mouse staining protocol

Click here to view the general protocols

Datasheets and documents

  • SDS download

  • Datasheet download

    Download

References (109)

Publishing research using ab11826? Please let us know so that we can cite the reference in this datasheet.

ab11826 has been referenced in 109 publications.

  • Zepecki JP  et al. miRNA-mediated loss of m6A increases nascent translation in glioblastoma. PLoS Genet 17:e1009086 (2021). PubMed: 33684100
  • Marenda M  et al. Parameter-free molecular super-structures quantification in single-molecule localization microscopy. J Cell Biol 220:N/A (2021). PubMed: 33734291
  • Legartová S  et al. The SC-35 Splicing Factor Interacts with RNA Pol II and A-Type Lamin Depletion Weakens This Interaction. Cells 10:N/A (2021). PubMed: 33535591
  • Honda M  et al. High-depth spatial transcriptome analysis by photo-isolation chemistry. Nat Commun 12:4416 (2021). PubMed: 34285220
  • Liu X  et al. Time-dependent effect of 1,6-hexanediol on biomolecular condensates and 3D chromatin organization. Genome Biol 22:230 (2021). PubMed: 34404453
View all Publications for this product

Customer reviews and Q&As

Show All Reviews Q&A
Submit a review Submit a question

21-30 of 31 Abreviews or Q&A

Western blot abreview for Anti-SC35 (phospho) antibody [SC-35] - Nuclear Speckle Marker

Good
Abreviews
Abreviews
This product is known to not work in this application or species.
abreview image
Application
Western blot
Sample
Human Cell lysate - whole cell (Endothelial Cells)
Loading amount
20 µg
Specification
Endothelial Cells
Treatment
TNF-alpha and inhibitors of SR protein kinases
Gel Running Conditions
Reduced Denaturing (gel 12 %)
Blocking step
BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 3% · Temperature: RT°C
Read More
The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

Abcam user community

Verified customer

Submitted Apr 07 2009

Immunocytochemistry/ Immunofluorescence abreview for Anti-SC35 (phospho) antibody [SC-35] - Nuclear Speckle Marker

Excellent
Abreviews
Abreviews
abreview image
Application
Immunocytochemistry/ Immunofluorescence
Sample
Human Cell (human adenocarcinoma HT29 cells)
Specification
human adenocarcinoma HT29 cells
Fixative
Paraformaldehyde
Permeabilization
Yes - Triton X100 and Saponin
Blocking step
BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 1% · Temperature: 37°C
Read More
The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

DR. Eva Bartova

Verified customer

Submitted Apr 01 2008

Immunocytochemistry abreview for Anti-SC35 (phospho) antibody [SC-35] - Nuclear Speckle Marker

Excellent
Abreviews
Abreviews
abreview image
Application
Immunocytochemistry
Sample
Human Cultured Cells (colon adenocarcinoma HT29 cells)
Specification
colon adenocarcinoma HT29 cells
Fixative
Paraformaldehyde
Permeabilization
Yes - Triton X100 and Saponin
Blocking step
BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 1% · Temperature: RT°C
Read More
The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

DR. Eva Bartova

Verified customer

Submitted Nov 22 2007

Immunocytochemistry/ Immunofluorescence abreview for Anti-SC35 (phospho) antibody [SC-35] - Nuclear Speckle Marker

Excellent
Abreviews
Abreviews
abreview image
Application
Immunocytochemistry/ Immunofluorescence
Sample
Human Cell (RPE-1)
Specification
RPE-1
Fixative
Paraformaldehyde
Permeabilization
Yes - 0.5% Triton X100 in PBS
Read More
The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

DR. Kirk Mcmanus

Verified customer

Submitted Aug 15 2007

Question

Does the antibody ab11826 detect non phosphorylated SC35 protein? The sentence "This antibody recognizes a phospho-epitope of the non-snRNP (small nuclear ribonucleoprotein particles) factor SC35" suggests the antibody is phospho-specific. The customer needs to have an antibody to total protein. Regarding ab28428: is it likely to cross react with other members of the SC family since it is raised against total protein? Can the lab provide an image of the blot to show if multiple bands are seen?

Read More

Abcam community

Verified customer

Asked on May 16 2007

Answer

I have been informed that as the immunogen for ab11826 is partially purified mammalian spliceosomes but as the epitope is known to be phospho-epitope of the non-snRNP (small nuclear ribonucleoprotein particles) factor SC35 it will only recognised the phosphorylated (active) form of SC35. We know also that the antibody reacts with the SC-35-related non-snRNP factor SF2/ASF. We are clarifying this on the datasheet and thank you for bringing this to my attention. Regarding ab28428, the antibody did not cross react with any other members of the SC family in HeLa nuclear lysate, where it gave a single band for SC35. I have added the image on the datasheet so you can see the results. Please do not hesitate to contact me if I can be of further assistance,

Read More

Abcam Scientific Support

Answered on May 16 2007

Question

BATCH NUMBER 150717 ORDER NUMBER ? DESCRIPTION OF THE PROBLEM Many bands, no enrichment of signal at expected molecular weight in purified nuclei vs. whole homogenate (rat liver). However, there is a signal indicative of strong enrichment of a nuclear protein at 200 kDa when blocked with milk. SAMPLE Rat liver: non-detergent Dounce homogenate and purified nuclei PRIMARY ANTIBODY Abcam mouse anti-SC35 MAb diluted 1/1000 (as recommended) in TBST + 1% BSA + 0.05% sodium azide. Incubation O/N at 4degC (17 h). DETECTION METHOD Pierce Supersignal West Pico ECL reagent. POSITIVE AND NEGATIVE CONTROLS USED Positive controls: duplicate blots probed with anti-tubulin, anti-fibrillarin, anti-PML, anti-Grp94. Nuclear markers (e.g. fibrillarin) show >10-fold enrichment in purified nuclei versus homogenate. ANTIBODY STORAGE CONDITIONS -20 degC as recommended SAMPLE PREPARATION Isotonic buffered sucrose (10 mM HEPES pH 7.4, 250 mM sucrose, 25 mM KCl + 5 mM MgCl2 + Complete protease inhibitors (Roche) + 1 mM DTT + 1 mM ATP) for Dounce homogenization of rat liver. Aliquot of homogenate adjusted to 1X Laemmli sample buffer (no DTT, no bromophenol blue) and boiled, 10 min then sonicated. Nuclei purified on discontinuous Optiprep gradient and lysed in 1X Laemmli sample buffer (no DTT, no bromophenol blue) and sonicated. BCA assay performed and aliquots prepared in 1X Laemmli sample buffer (plus bromophenol blue), boiled 5 min and stored at -80degC. Thawed, TCEP added to 25 mM and boiled 5 min. Alkylated with 0.1 M iodoacetamide for 15 min at RT and loaded (10% SDS-PAGE). AMOUNT OF PROTEIN LOADED 50 ug/lane ELECTROPHORESIS/GEL CONDITIONS Reducing 10% SDS-PAGE TRANSFER AND BLOCKING CONDITIONS Electroblotted to PVDF, 100 V, 1 h in 1X Towbin buffer + 10% MeOH. Complete transfer of all standards to membrane. Blocked in 5% nonfat milk, RT, 2.5 h. Washed twice for 5 min in TBST. SECONDARY ANTIBODY Blot washed 4X for 10 min with TBST. [another company] HRP-conjugated goat anti-mouse (H + L) at 1/50,000 in TBST + 1% BSA for 1 h at RT. Blot washed again as above. HOW MANY TIMES HAVE YOU TRIED THE APPLICATION? 2 HAVE YOU RUN A "NO PRIMARY" CONTROL? No DO YOU OBTAIN THE SAME RESULTS EVERY TIME? No WHAT STEPS HAVE YOU ALTERED? Blocking (milk vs. BSA) changes intensity and location of bands.

Read More

Abcam community

Verified customer

Asked on Mar 24 2006

Answer

Thank you for your enquiry. I am sorry to hear that you have been having difficulties with this antibody. You are performing an approach that I would largely recommend; purifying nuclei, employing protease inhibitors etc. Looking through the past enquiries I can tell you that we have received complaints relating to this lot number. I would like to offer you a replacement vial of a different LOT (162866) provided that this antibody was purchased within the past 90 days. If this is the case please provide me with details of your original purchase including the date of purchase and order number. I look forward to hearing from you.

Read More

Abcam Scientific Support

Answered on Mar 28 2006

Question

BATCH NUMBER 126372 ORDER NUMBER unknown DESCRIPTION OF THE PROBLEM No or very faint band at expected size. SAMPLE HeLa cell extract, both untransfected and tranfected with SC35 expression vector. PRIMARY ANTIBODY Abcam antibody 1/1000 & 1/2000 in TBS-tween (pH8.1) plus 2% marvel for 2hrs. Followed by 3 10min washes in the same. DETECTION METHOD ECL POSITIVE AND NEGATIVE CONTROLS USED HA western blot for HA tagged SC35 expressed from expression vector gave good signal, however when this was repeated with SC35 antibody or against endogenous protein western gave no or very faint band at expected size and faint bands at the wrong size. ANTIBODY STORAGE CONDITIONS 4C SAMPLE PREPARATION RIPA buffer containing PMSF, leupeptin & aprotinin. Cells were washed twice with cold PBS, scraped and pelleted. Pellet was resuspended in appropriate volume RIPA buffer (plus protease inhibitors), left to lyse on ice for <30>min then clarified by a 10min spin at 13.2Krpm at 4C and stored at -20C. Samples were diluted to an appropriate concentration in RIPA and an SDS buffer containing 20% Beta-mercaptoethanol. AMOUNT OF PROTEIN LOADED 10, 30 & 50ug total cell protein, as determined by bradford assay relative to BSA. ELECTROPHORESIS/GEL CONDITIONS 15% reducing SDS-PAGE gel. 2.5hrs at 25mA TRANSFER AND BLOCKING CONDITIONS Transfered in SDS running buffer plus 20% methanol for 90min at 0.35A. Transfer confirmed by ponceau S staining. Blocked overnight at 4C in TBS-tween (pH8.1) plus 4% marvel. SECONDARY ANTIBODY Jackson Immunoresearch Donkey anti-mouse HRP conjugated 2ndary, 1/10000 in TBS-tween (pH8.1) plus 2% marvel for 1hrs. Followed by 3 10min washes in the TBS-tween (pH8.1) without marvel. HOW MANY TIMES HAVE YOU TRIED THE APPLICATION? 3 HAVE YOU RUN A "NO PRIMARY" CONTROL? No DO YOU OBTAIN THE SAME RESULTS EVERY TIME? Yes

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Abcam community

Verified customer

Asked on Jan 03 2006

Answer

Thank you for your enquiry and I'm sorry to hear that you are experiencing difficulty with ab11826. At this point I would like to make the following suggestions in order to try to improve your results. I would suggest extending the incubation period with ab11826 to overnight at 4C. Also, try blocking with 5% (w/v) skimmed milk powder in TBS with 0.1% (v/v) Tween 20 for 1 hour rather than overnight. I would also suggest diluting the primary antibody (1:1000) in TBST without the milk. This will sometimes help to enhance the signal. Literature suggests that HeLa cells do not express high levels, if any, of the nuclear protein SC35. However, HeLa cells which are transfected and express recombinant protein have been reported to express high levels of SC35. So, I would expect that you would see a signal with this samples. We also recommend a positive control of whole cell lysate of cultured human fibroblasts. If these suggestions do not help, please let me know and I would be happy to offer a free of charge replacement or refund if you have purchased the antibody in the past 90 days.

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Abcam Scientific Support

Answered on Jan 03 2006

Question

BATCH NUMBER 111698 ORDER NUMBER PL580131 DESCRIPTION OF THE PROBLEM Antibody is picking up specific extra-nuclear structures and does not appear to be staining any sort of nuclear material. Please email me if you would like to see a picture of what it is staining. SAMPLE Mouse brain tissue (R6/2 line and wild type) cut in 30 micron sections. PRIMARY ANTIBODY SC-35 (ab11826), diluted in block buffer (0.1M PBS, 0.02% Triton-X 100, 3% normal goat serum) at concentrations of 1-to-1000, 1-to-2000 and 1-to-4000. Incubated overnight at 4C with slow rocking. Washed 3x10' (0.1M PBS, 0.02% Triton-X 100) after this step. DETECTION METHOD Fluorescence microscopy showed no staining in negative control and non-nuclear staining in tissue incubated with nuclear speckle marker SC-35. POSITIVE AND NEGATIVE CONTROLS USED No positive control. Used tissue without any primary antibody applied as a negative control. ANTIBODY STORAGE CONDITIONS Antibody was stored in freezer, then moved to 4C fridge. FIXATION OF SAMPLE Animal was perfused with 4% paraformaldehyde ANTIGEN RETRIEVAL None. PERMEABILIZATION STEP Washed in PBS with Triton. BLOCKING CONDITIONS Blocked in normal goat serum overnight (0.1M PBS, 0.02% Triton-X100, 3% normal goat serum) at 4C. SECONDARY ANTIBODY Alexa-Fluor 488 anti-mouse diluted at 1-to-1000 in block buffer (0.1M PBS, 0.02% Triton-X 100, 3% normal goat serum). Incubated 1 hour at room temperature with slow rocking. Washed 3x10' after this step. Mounted on slides with ProLong Gold. HOW MANY TIMES HAVE YOU TRIED THE APPLICATION? 2 HAVE YOU RUN A "NO PRIMARY" CONTROL? Yes DO YOU OBTAIN THE SAME RESULTS EVERY TIME? Yes

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Abcam community

Verified customer

Asked on Jul 14 2005

Answer

I'm sorry to hear you are having a problem with ab11826. Thank you for taking the time to fill in our online questionnaire, this is really useful to understand your problem. I seem to understand you used perfusion fixed tissue which was cut frozen, is that correct? I have looked into details of the tests done with this antibody and found that it has been tested to our knowledge only in paraffin embedded sections. Therefore the problem might be due to type of tissue fixation method. There are however certain steps in your protocol which might need a little optimisation and could potentially work with your sections. I found a paper by Nie et al where the protocol used a different dilution buffer to yours, and where the blocking was much shorter. Nie et al used DAB detection and not IF (the antibody may not work well in IF) and following blocking in normal serum 10% in TBS (pH 7.6) for 30min they incubated the antibody at 1/500 overnight at 4C in TBST. They then finished the experiment with biotin- ABC amplification and DAB detection. I would therefore suggest trying this dilution buffer, and if the signal is still unspecific add triton to the dilution buffer (typically 0.3%). Please make sure you wash your sections following ctting and in between all steps of the staining protocol as too little washing can cause non specific binding. Finally, can I just clarify what you mean by " Antibody was stored in freezer, then moved to 4C fridge.". If the antibody was left in the fridge for more than a few hours following thawing, this aliquot may be damaged, so I would recommend taking out a new aliquot from the freezer, defrosting it gently with the warmth of your hands and use it straight away. Please let me know if this helps and do not hesitate to contact us for further advice if you still experience problems,

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Abcam Scientific Support

Answered on Jul 15 2005

Question

what is the concentration (mg/ml) of the following antibodies? ab4566 ab11826

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Abcam community

Verified customer

Asked on May 02 2005

Answer

Thank you for your enquiry. There are no associated concentrations for these antibodies, as they are in unpurified form. If you require further information to that provided on the datasheet, please contact us again and we will gladly assist you.

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Abcam Scientific Support

Answered on May 02 2005

Question

Dear Sarah, Our customer got multibands in western blot by SC35 ab11826 monoclone antibody. ab 1) Batch number: 80346 2)Purchase order number: 64383 3)Antibody storage conditions (temperature/reconstitution etc) -20C 4)Description of the problem (high background, wrong band size, more bands, no band etc.) more bands 5)Sample (Species/Cell extract/Nuclear extract/Purified protein/Recombinant protein etc.) Hela cell lysate 6)Sample preparation (Buffer/Protease inhibitors/Heating sample etc.) The lysate was prepared by homogenization in modified RIPA buffer (50 mM Tris -HCl, pH 7.4, 1% Triton X-100, 0.2% sodium deoxycholate, 0.2% sodium dodecylsulfate (SDS), 1 mM sodium ethylenediaminetetraacetate, 1 mM phenylmethylsulfonyl flouride, 5 ?g/ml of aprotinin, 5 ?g/ml of leupeptin). Tissue and cell debris was removed by centrifugation. Protein concentration was determined with Bio-Rad protein assay. The lysate was boiled for 5 min in 1 x SDS sample buffer (50 mM Tris -HCl pH 6.8, 12.5% glycerol, 1% SDS, 0.01% bromophenol blue) containing 5% b-mercaptoethanol. 7)Amount of protein loaded: 50ug, 100ug 8) Electrophoresis/Gel conditions (Reducing or Non-reducing gel, % of the gel etc.) 10% SDS page 9)Transfer and blocking conditions (Buffer/time period, Blocking agent etc.) Transfer buffer for 1.5hour. blocking buffer: 1% milk 10)Primary Antibody (Diluent/Dilution/Incubation time, Wash step) 1:500 and 1:1000 dilution by TBS, incubate for 1hour, wash 3 times with TTBS 11)Secondary Antibody (Manufacturer/Species/Diluent/Dilution/Incubation time, Wash step) anti-mouse IgG HRP 1:2000 dilution, incubate for 1hour, wash 3 times with TTBS 12)Detection method (ECL, ECLPlus etc.): ECL 13)Positive and negative controls used (please specify): None 14)How many times have you tried the Western? 2 times 15)Have you run a "No Primary" control? Yes 16)What steps have you altered? None

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Abcam community

Verified customer

Asked on Feb 25 2005

Answer

I'm sorry to hear you are having a problem with 11826. As I mentioned in the e-mail regarding ab292 and ab31690 if this is the same customer it could simply be that the antibodies got damaged during shipping and we can offer replacement vials. We would like to emphasise that the protein is nuclear and therefore a nuclear extraction is recommended. Furthermore, literature suggests that HeLa cells do not express high levels if any of the nuclear protein SC35. However, HeLa cells which are transfected and express recombinant protein have been reported to express high levels of SC35. We recommend a positive control of whole cell lysate of cultured human fibroblasts. We recommend decreasing the amount of protein loaded on the gel (40ug) and an overnight incubation at 4C with the primary antibody with a range of dilutions tested in a preliminary experiment to optimise the dilution. Try blocking in 5% BSA in TBST (1hr, RT) and washing extensively between steps (even after blocking, for 5sec). Please let us know if you still have problems and we will arrange a replacement or refund,

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Abcam Scientific Support

Answered on Feb 28 2005

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