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AB247222

Anti-PARP1 antibody [E78] - BSA and Azide free

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Rabbit Recombinant Monoclonal PARP1 antibody. Carrier free. Suitable for WB and reacts with Human samples.

View Alternative Names

ADPRT, PPOL, PARP1, Poly [ADP-ribose] polymerase 1, PARP-1, ADP-ribosyltransferase diphtheria toxin-like 1, DNA ADP-ribosyltransferase PARP1, NAD(+) ADP-ribosyltransferase 1, Poly[ADP-ribose] synthase 1, Protein poly-ADP-ribosyltransferase PARP1, ARTD1, ADPRT 1

2 Images
Western blot - Anti-PARP1 antibody [E78] - BSA and Azide free (AB247222)
  • WB

Unknown

Western blot - Anti-PARP1 antibody [E78] - BSA and Azide free (AB247222)

pro-form : 116kDa; p85 caspases cleaved form : 85kDa; proteolysis cleaved fragments : 71kDa, 55kDa and 42kDa

All lanes:

Western blot - Anti-PARP1 antibody [E78] (<a href='/en-us/products/primary-antibodies/parp1-antibody-e78-ab32071'>ab32071</a>) at 1/1000 dilution

Lane 1:

Untreated Jurkat (Human T cell leukemia T lymphocyte) whole cell lysate at 20 µg

Lane 2:

Jurkat (Human T cell leukemia T lymphocyte) treated with 1μM staurosporine for 4 hours whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/20000 dilution

Predicted band size: 113 kDa

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Western blot - Anti-PARP1 antibody [E78] - BSA and Azide free (AB247222)
  • WB

Lab

Western blot - Anti-PARP1 antibody [E78] - BSA and Azide free (AB247222)

This data was developed using ab32071, the same antibody clone in a different buffer formulation.

Lane 1 : Wild type HAP1 whole cell lysate (20 μg)

Lane 2 : PARP1 knockout HAP1 whole cell lysate (20 μg)

Lane 3 : HeLa whole cell lysate (20 μg)

Lane 4 : MCF7 whole cell lysate (20 μg)

Lanes 1 - 4 : Merged signal (red and green). Green ab32071 observed at 125 kDa. Red - loading control, ab8245, observed at 37 kDa.

ab32071 was shown to specifically react with PARP1 when PARP1 knockout samples were used. Wild-type and PARP1 knockout samples were subjected to SDS-PAGE. ab32071 and ab8245 (Mouse anti- GAPDH loading control) were incubated overnight at 4°C at 1/1000 dilution and 1/10 000 dilution respectively. Blots were developed with 800CW Goat anti Rabbit and 680CW Goat anti Mouse secondary antibodies at 1/10000 dilution for 1 hour at room temperature before imaging.

All lanes:

Western blot - Anti-PARP1 antibody [E78] (<a href='/en-us/products/primary-antibodies/parp1-antibody-e78-ab32071'>ab32071</a>)

Predicted band size: 113 kDa

false

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

E78

Isotype

IgG

Carrier free

Yes

Reacts with

Human

Applications

WB

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Specificity

This antibody should recognise both pro-form and p85 cleaved-form of PARP1.

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>" } } }
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Product details

ab247222 is the carrier-free version of ab32071.

Species reactivity
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species.
Please contact us for more information.

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
Do Not Freeze
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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

PARP1 also known as poly(ADP-ribose) polymerase 1 is an enzyme that plays an important role in DNA repair processes. It detects DNA single-strand breaks and uses NAD+ as a substrate to add ADP-ribose polymers to itself and other proteins. This post-translational modification signals DNA repair machinery to the site of damage. PARP1 has a molecular weight of approximately 116 kDa. It is widely expressed in the nucleus of eukaryotic cells. PARP1 is often studied by western blotting techniques to analyze its expression and activation levels.
Biological function summary

Poly(ADP-ribose) polymerase 1 functions to maintain genomic stability by acting within the base excision repair complex. This complex is important for the detection and repair of DNA damage preventing the accumulation of mutations. By acting at sites of DNA stress PARP1 facilitates the binding of DNA repair proteins stabilizing the DNA structure during the repair process. This role is significant for cells that undergo frequent DNA replication or are exposed to high levels of genotoxic stress.

Pathways

The PARP1 protein is integral to the DNA damage response and repair pathway. It interacts with other proteins such as XRCC1 to coordinate repair activities at damaged DNA sites. Another important pathway involving PARP1 is the apoptosis pathway where excessive activation of PARP1 can lead to cell death due to depletion of cellular NAD+ and ATP. This indicates its dual role in both promoting cell survival through DNA repair and contributing to cell death when damage is irreparable.

Poly(ADP-ribose) polymerase 1 is strongly linked to cancer and neurodegenerative diseases. Its activity is heightened in many cancer types where cancer cells exploit PARP1 for survival by repairing DNA damage that would otherwise be lethal. Inhibitors of PARP1 are being developed as cancer therapies to target these survival mechanisms. Moreover overactivation of PARP1 in neurodegenerative disorders like Alzheimer's disease can lead to excessive energy consumption promoting neuronal cell damage. In these contexts PARP1 connects with proteins like BRCA1 in cancer or AIF in neurodegeneration illustrating its role in disease mechanisms.
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Product protocols

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

Poly-ADP-ribosyltransferase that mediates poly-ADP-ribosylation of proteins and plays a key role in DNA repair (PubMed : 17177976, PubMed : 18055453, PubMed : 18172500, PubMed : 19344625, PubMed : 19661379, PubMed : 20388712, PubMed : 21680843, PubMed : 22582261, PubMed : 23230272, PubMed : 25043379, PubMed : 26344098, PubMed : 26626479, PubMed : 26626480, PubMed : 30104678, PubMed : 31796734, PubMed : 32028527, PubMed : 32241924, PubMed : 32358582, PubMed : 33186521, PubMed : 34465625, PubMed : 34737271). Mediates glutamate, aspartate, serine, histidine or tyrosine ADP-ribosylation of proteins : the ADP-D-ribosyl group of NAD(+) is transferred to the acceptor carboxyl group of target residues and further ADP-ribosyl groups are transferred to the 2'-position of the terminal adenosine moiety, building up a polymer with an average chain length of 20-30 units (PubMed : 19764761, PubMed : 25043379, PubMed : 28190768, PubMed : 29954836, PubMed : 35393539, PubMed : 7852410, PubMed : 9315851). Serine ADP-ribosylation of proteins constitutes the primary form of ADP-ribosylation of proteins in response to DNA damage (PubMed : 33186521, PubMed : 34874266). Specificity for the different amino acids is conferred by interacting factors, such as HPF1 and NMNAT1 (PubMed : 28190768, PubMed : 29954836, PubMed : 32028527, PubMed : 33186521, PubMed : 33589610, PubMed : 34625544, PubMed : 34874266). Following interaction with HPF1, catalyzes serine ADP-ribosylation of target proteins; HPF1 confers serine specificity by completing the PARP1 active site (PubMed : 28190768, PubMed : 29954836, PubMed : 32028527, PubMed : 33186521, PubMed : 33589610, PubMed : 34625544, PubMed : 34874266). Also catalyzes tyrosine ADP-ribosylation of target proteins following interaction with HPF1 (PubMed : 29954836, PubMed : 30257210). Following interaction with NMNAT1, catalyzes glutamate and aspartate ADP-ribosylation of target proteins; NMNAT1 confers glutamate and aspartate specificity (By similarity). PARP1 initiates the repair of DNA breaks : recognizes and binds DNA breaks within chromatin and recruits HPF1, licensing serine ADP-ribosylation of target proteins, such as histones (H2BS6ADPr and H3S10ADPr), thereby promoting decompaction of chromatin and the recruitment of repair factors leading to the reparation of DNA strand breaks (PubMed : 17177976, PubMed : 18172500, PubMed : 19344625, PubMed : 19661379, PubMed : 23230272, PubMed : 27067600, PubMed : 34465625, PubMed : 34874266). HPF1 initiates serine ADP-ribosylation but restricts the polymerase activity of PARP1 in order to limit the length of poly-ADP-ribose chains (PubMed : 33683197, PubMed : 34732825, PubMed : 34795260). In addition to base excision repair (BER) pathway, also involved in double-strand breaks (DSBs) repair : together with TIMELESS, accumulates at DNA damage sites and promotes homologous recombination repair by mediating poly-ADP-ribosylation (PubMed : 26344098, PubMed : 30356214). Mediates the poly-ADP-ribosylation of a number of proteins, including itself, APLF, CHFR, RPA1 and NFAT5 (PubMed : 17396150, PubMed : 19764761, PubMed : 24906880, PubMed : 34049076). In addition to proteins, also able to ADP-ribosylate DNA : catalyzes ADP-ribosylation of DNA strand break termini containing terminal phosphates and a 2'-OH group in single- and double-stranded DNA, respectively (PubMed : 27471034). Required for PARP9 and DTX3L recruitment to DNA damage sites (PubMed : 23230272). PARP1-dependent PARP9-DTX3L-mediated ubiquitination promotes the rapid and specific recruitment of 53BP1/TP53BP1, UIMC1/RAP80, and BRCA1 to DNA damage sites (PubMed : 23230272). PARP1-mediated DNA repair in neurons plays a role in sleep : senses DNA damage in neurons and promotes sleep, facilitating efficient DNA repair (By similarity). In addition to DNA repair, also involved in other processes, such as transcription regulation, programmed cell death, membrane repair, adipogenesis and innate immunity (PubMed : 15607977, PubMed : 17177976, PubMed : 19344625, PubMed : 27256882, PubMed : 32315358, PubMed : 32844745, PubMed : 35124853, PubMed : 35393539, PubMed : 35460603). Acts as a repressor of transcription : binds to nucleosomes and modulates chromatin structure in a manner similar to histone H1, thereby altering RNA polymerase II (PubMed : 15607977, PubMed : 22464733). Acts both as a positive and negative regulator of transcription elongation, depending on the context (PubMed : 27256882, PubMed : 35393539). Acts as a positive regulator of transcription elongation by mediating poly-ADP-ribosylation of NELFE, preventing RNA-binding activity of NELFE and relieving transcription pausing (PubMed : 27256882). Acts as a negative regulator of transcription elongation in response to DNA damage by catalyzing poly-ADP-ribosylation of CCNT1, disrupting the phase separation activity of CCNT1 and subsequent activation of CDK9 (PubMed : 35393539). Involved in replication fork progression following interaction with CARM1 : mediates poly-ADP-ribosylation at replication forks, slowing fork progression (PubMed : 33412112). Poly-ADP-ribose chains generated by PARP1 also play a role in poly-ADP-ribose-dependent cell death, a process named parthanatos (By similarity). Also acts as a negative regulator of the cGAS-STING pathway (PubMed : 32315358, PubMed : 32844745, PubMed : 35460603). Acts by mediating poly-ADP-ribosylation of CGAS : PARP1 translocates into the cytosol following phosphorylation by PRKDC and catalyzes poly-ADP-ribosylation and inactivation of CGAS (PubMed : 35460603). Acts as a negative regulator of adipogenesis : catalyzes poly-ADP-ribosylation of histone H2B on 'Glu-35' (H2BE35ADPr) following interaction with NMNAT1, inhibiting phosphorylation of H2B at 'Ser-36' (H2BS36ph), thereby blocking expression of pro-adipogenetic genes (By similarity). Involved in the synthesis of ATP in the nucleus, together with NMNAT1, PARG and NUDT5 (PubMed : 27257257). Nuclear ATP generation is required for extensive chromatin remodeling events that are energy-consuming (PubMed : 27257257).. Poly [ADP-ribose] polymerase 1, processed C-terminus. Promotes AIFM1-mediated apoptosis (PubMed : 33168626). This form, which translocates into the cytoplasm following cleavage by caspase-3 (CASP3) and caspase-7 (CASP7) in response to apoptosis, is auto-poly-ADP-ribosylated and serves as a poly-ADP-ribose carrier to induce AIFM1-mediated apoptosis (PubMed : 33168626).. Poly [ADP-ribose] polymerase 1, processed N-terminus. This cleavage form irreversibly binds to DNA breaks and interferes with DNA repair, promoting DNA damage-induced apoptosis.
See full target information PARP1
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