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AB4566

Anti-Fibrillarin antibody [38F3] - Nucleolar Marker

5

(24 Reviews)

|

(264 Publications)

Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (ab4566) is a mouse monoclonal antibody detecting Fibrillarin in Western Blot, Flow Cytometry, ICC/IF. Suitable for Human, Mouse, Rat.

- Over 220 publications
- Trusted since 2003

View Alternative Names

FIB1, FLRN, FBL, rRNA 2'-O-methyltransferase fibrillarin, 34 kDa nucleolar scleroderma antigen, Histone-glutamine methyltransferase, U6 snRNA 2'-O-methyltransferase fibrillarin, LOT3, YDL014W, D2870, NOP1, rRNA 2'-O-methyltransferase fibrillarin, Histone-glutamine methyltransferase, U3 small nucleolar RNA-associated protein NOP1, Nucleolar protein 1, U3 snoRNA-associated protein NOP1

9 Images
Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)

ICC analysis of HeLa cells stained with mouse monoclonal to Fibrillarin (green) and with chicken antibody to vimentin (red) and counterstained with a fluorescent DNA probe (blue). Nuclear DNA is revealed with DAPI(blue). The vimentin antibody was used at a dilution of 1/1000 and the fibrillarin monoclonal at 1/100. Cultures were processed using standard fixation and staining procedure (in protocol section).

Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)

Human neuroblastoma line SH-SY5Y stained with mouse monoclonal to Fibrillarin (green) and with chicken antibody to neurofilament NF-H (red) and counterstained with a fluorescent DNA probe (blue). Nuclear DNA is revealed with Hoechst dye (blue). The NF-H antibody was used at a dilution of 1/100000 and the fibrillarin monoclonal at 1/1000. Cultures were processed using standard fixation and staining procedure (in protocol section).

Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)
  • ICC/IF

AbReview14675****

Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)

ab staining Fibrillarin in Human melanoma A7 cells by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with paraformaldehyde, permeabilized with 0.1% Triton and blocked with 1% BSA for 1 hour at room temperature. Samples were incubated with primary antibody (1/500 in 1% BSA) for 24 hours at 4°C. A FITC-conjugated Goat anti-mouse polyclonal (1/200) was used as the secondary antibody.

Image is courtesy of Cesar Camacho

Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)

High magnification view of human Hek293 cell nuclei stained with mouse monoclonal to fibrillarin (green), counterstained with a fluorescent DNA probe (blue). Nuclear DNA is revealed with Hoechst dye (blue). Cultures were processed using our standard fixation and staining procedure (in protocol section).

Flow Cytometry - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)
  • Flow Cyt

Unknown

Flow Cytometry - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)

Overlay histogram showing HEK293 cells stained with ab4566 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab4566, 1/20 dilution) for 30 min at 22°C. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22°C. Isotype control antibody (black line) was mouse IgG1 [ICIGG1](ab91353, 2μg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.

Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)

Rat neurons and glial stained with mouse monoclonal to Fibrillarin (green) and with chicken antibody to neurofilament NF-H (red). Cells were counterstained with a fluorescent DNA probe (blue). Nuclear DNA is revealed with Hoechst dye (blue). Cultures were processed using our standard fixation and staining procedure (in protocol section).

Western blot - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)
  • WB

Supplier Data

Western blot - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)

All lanes:

Western blot - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (ab4566) at 1/500 dilution

Lane 2:

C6 cytosol fraction

Lane 3:

C6 nuclear fraction

Lane 4:

HEK-293 cytosol fraction

Lane 5:

HEK-293 nuclear fraction

Lane 6:

NIH-3T3 cytosol fraction

Lane 7:

NIH-3T3 nuclear fraction

Predicted band size: 33 kDa

Observed band size: 37 kDa

false

Western blot - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)
  • WB

AbReview27713****

Western blot - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)

Mouse embryonic fibroblast fractionation.

Cytopl - cytoplasmic fraction.
Nucl - nuclear fraction.
20 µg of each loaded.

ab4566 used at a 1/2000 dilution.
The secondary used was an Alexa-Fluor 680 conjugated goat anti-mouse polyclonal used at a 1/10000 dilution.

All lanes:

Western blot - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (ab4566)

Predicted band size: 33 kDa

false

Image courtesy of an anonymous Abreview.

Western blot - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)
  • WB

AbReview19782****

Western blot - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (AB4566)

All lanes:

Western blot - Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (ab4566) at 1/2000 dilution

Lane 1:

cytoplasmic protein fraction of HeLa cells at 20 µg

Lane 2:

nuclear protein fraction of HeLa cells at 20 µg

Secondary

All lanes:

AlexaFluor 680 goat anti-mouse at 1/10000 dilution

Predicted band size: 33 kDa

Observed band size: 34 kDa

false

Exposure time: 1s

Image is courtesy of Dr Svetlana Khoronenkova

Key facts

Host species

Mouse

Clonality

Monoclonal

Clone number

38F3

Isotype

IgG1

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

ICC/IF, Flow Cyt, WB

applications

Immunogen

Cell preparation containing NOP1 protein. The exact immunogen used to generate this antibody is proprietary information.

P15646

Specificity

This clone was selected because it stains a single ~34kDa band on western blotting and shows a clear and strong punctate staining of yeast nuclei. It can therefore be used to identify nucleoli immunocytochemically. ab4566 was raised against yeast nuclear preps and the immunogen was identified as Nop1p, the yeast homolog of fibrillarin. Due to high aa homology the antibody should work with any specie possessing a nucleus, however this has not been tested.

Reactivity data

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Product details

What is this antibody validated in?
Anti-Fibrillarin antibody [38F3] - Nucleolar Marker (ab4566) is a mouse monoclonal antibody and is validated for use in Western Blot (WB), Flow Cytometry (Flow Cyt), Immunocytochemistry/immunofluorescence (ICC/IF) in Human, Mouse, Rat samples.

Trusted by the scientific community
Anti-Fibrillarin [38F3] - Nucleolar Marker (ab4566) was first used in a scientific publication in 2003 and has been cited over 220 times in peer-reviewed journals.

Reviewed by scientists
Anti-Fibrillarin [38F3] - Nucleolar Marker (ab4566) has over 20 independent reviews from customers.

Properties and storage information

Form
Liquid
Purity
Tissue culture supernatant
Purification notes
Sterile filtered.
Storage buffer
Preservative: 0.065% Sodium azide Constituents: Tissue culture supernatant
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

S-adenosyl-L-methionine-dependent methyltransferase that has the ability to methylate both RNAs and proteins (PubMed : 24352239, PubMed : 30540930, PubMed : 32017898). Involved in pre-rRNA processing by catalyzing the site-specific 2'-hydroxyl methylation of ribose moieties in pre-ribosomal RNA (PubMed : 30540930). Site specificity is provided by a guide RNA that base pairs with the substrate (By similarity). Methylation occurs at a characteristic distance from the sequence involved in base pairing with the guide RNA (By similarity). Probably catalyzes 2'-O-methylation of U6 snRNAs in box C/D RNP complexes (PubMed : 32017898). U6 snRNA 2'-O-methylation is required for mRNA splicing fidelity (PubMed : 32017898). Also acts as a protein methyltransferase by mediating methylation of 'Gln-105' of histone H2A (H2AQ104me), a modification that impairs binding of the FACT complex and is specifically present at 35S ribosomal DNA locus (PubMed : 24352239, PubMed : 30540930). Part of the small subunit (SSU) processome, first precursor of the small eukaryotic ribosomal subunit. During the assembly of the SSU processome in the nucleolus, many ribosome biogenesis factors, an RNA chaperone and ribosomal proteins associate with the nascent pre-rRNA and work in concert to generate RNA folding, modifications, rearrangements and cleavage as well as targeted degradation of pre-ribosomal RNA by the RNA exosome (PubMed : 34516797).
See full target information FBL

Additional targets

NOP1

Publications (264)

Recent publications for all applications. Explore the full list and refine your search

microPublication biology 2025: PubMed40896257

2025

The CFII components PCF11 and Cbc change subnuclear localization as cells differentiate in an adult stem cell lineage.

Applications

Unspecified application

Species

Unspecified reactive species

Iliana Nava,Margaret T Fuller,Lorenzo Gallicchio

Genes to cells : devoted to molecular & cellular mechanisms 30:e70045 PubMed40891079

2025

Loss of Nuclear Protein Dyro Causes Abnormalities in Nurse Cell Nuclei and Abort Oogenesis at Mid-Oogenesis Checkpoint.

Applications

Unspecified application

Species

Unspecified reactive species

Takamoto Shima,Yuuki Kawabata,Yoshimasa Yagi

Nucleic acids research 53: PubMed40737086

2025

SnoBIRD: a tool to identify C/D box snoRNAs and refine their annotation across all eukaryotes.

Applications

Unspecified application

Species

Unspecified reactive species

Étienne Fafard-Couture,Cédric Boulanger,Laurence Faucher-Giguère,Vanessa Sinagoga,Mélodie Berthoumieux,Jordan Hedjam,Virginie Marcel,Sébastien Durand,Mark A Bayfield,François Bachand,Sherif Abou Elela,Pierre-Étienne Jacques,Michelle S Scott

Science advances 11:eadq9643 PubMed40577453

2025

VIRMA-mediated mA modification regulates forebrain formation through modulating ribosome biogenesis.

Applications

Unspecified application

Species

Unspecified reactive species

Min Wu,Xiaoli Wu,Haifeng Sun,Wen Wang,Leyi Zhang,Xia Liu,Yifan Zhang,Xinning Zhang,Jun Liu,Bin Shen,Tao Zhou

Molecular medicine (Cambridge, Mass.) 31:150 PubMed40264043

2025

SNORA47 affects stemness and chemotherapy sensitivity via EBF3/RPL11/c-Myc axis in luminal A breast cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Qilin Han,Ying Zhou,Zixian Dong,Weitao Wang,Menghan Wang,Mengyang Pang,Xinyue Song,Bo Chen,Ang Zheng

Cell death & disease 16:203 PubMed40133262

2025

Overexpression of βTrCP1 elicits cell death in cisplatin-induced senescent cells.

Applications

Unspecified application

Species

Unspecified reactive species

Alejandro Belmonte-Fernández,Joaquín Herrero-Ruíz,M Cristina Limón-Mortés,Carmen Sáez,Miguel Á Japón,Mar Mora-Santos,Francisco Romero

Genes & development 39:280-298 PubMed39797762

2025

LINE1 elements at distal junctions of rDNA repeats regulate nucleolar organization in human embryonic stem cells.

Applications

Unspecified application

Species

Unspecified reactive species

Lamisa Ataei,Juan Zhang,Simon Monis,Krystyna Giemza,Kirti Mittal,Joshua Yang,Mayu Shimomura,Brian McStay,Michael D Wilson,Miguel Ramalho-Santos

The EMBO journal 44:801-823 PubMed39690241

2024

A nuclear protein quality control system for elimination of nucleolus-related inclusions.

Applications

Unspecified application

Species

Unspecified reactive species

Lorène Brunello,Jolanta Polanowska,Léo Le Tareau,Chantal Maghames,Virginie Georget,Charlotte Guette,Karima Chaoui,Stéphanie Balor,Marie-Françoise O'Donohue,Marie-Pierre Bousquet,Pierre-Emmanuel Gleizes,Dimitris P Xirodimas

PLoS biology 22:e3002841 PubMed39436954

2024

Free long-chain fatty acids trigger early postembryonic development in starved Caenorhabditis elegans by suppressing mTORC1.

Applications

Unspecified application

Species

Unspecified reactive species

Meiyu Ruan,Fan Xu,Na Li,Jing Yu,Fukang Teng,Jiawei Tang,Cheng Huang,Huanhu Zhu

The Journal of biological chemistry 300:107858 PubMed39374783

2024

The unique Pt(II)-induced nucleolar stress response and its deviation from DNA damage response pathways.

Applications

Unspecified application

Species

Unspecified reactive species

Hannah C Pigg,Katelyn R Alley,Christopher R Griffin,Caleb H Moon,Sarah J Kraske,Victoria J DeRose
View all publications

Product promise

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