Rabbit anti-Phospho RPA32 (S4/S8) Antibody, Affinity Purified

Powered by Bethyl Laboratories, Inc.

RPA32, replication factor A protein 2, RF-A protein 2, replication protein A2, 32kDa, replication protein A 34 kDa subunit, RP-A p34, REPA2, RP-A p32, replication protein A2 (32kD)
Pricing and availability is not currently available.

biological source


Quality Level

antibody form

affinity purified immunoglobulin

antibody product type

primary antibodies


Powered by Bethyl Laboratories, Inc.

species reactivity

human, mouse


immunocytochemistry: 1:500-1:5,000
immunohistochemistry: 1:500-1:2,000
immunoprecipitation (IP): 2-10 μg/mg
western blot: 1:2,000-1:10,000

accession no.


shipped in

wet ice

storage temp.


Gene Information

rabbit ... RPA32, Phospho (S4/S8)(6118)

General description

Replication protein A2 (RPA32) is encoded by the gene mapped to human chromosome 1p35.3. It is a subunit of the heterotrimeric replication protein A (RPA) complex.


Immunogen was a dually phosphorylated synthetic peptide, which represented a portion of human replication protein A2, 32 kDa surrounding phosphorylated serines that corresponded to positions 4 and 8 using the numbering given in entry NP_002937.1 (GeneID 6118).

Biochem/physiol Actions

Replication Protein A (RPA) binds single-stranded DNA and plays a vital role in DNA replication, DNA repair, and checkpoint signaling. Phosphorylation of replication protein A2 (RPA32) by ataxia telangiectasia and Rad3-related protein kinase (ATR) and DNA-dependent protein kinase (DNA-PK) causes checkpoint kinase 1 (Chk1) activation and replication arrest. DNA-PK and ATR signaling via RPA32 (S4/S8) enhances genome stability and cell survival following replication stress.

Physical form

Tris-citrate/phosphate buffer, pH 7 to 8 containing 0.09% Sodium Azide

Other Notes

Replication protein A (RPA) is a multisubunit complex that carries out DNA mismatch repair (MMR) in association with MSH2 (a subunit of human MutS heterodimers), MLH1 (a subunit of human MutL heterodimers), PCNA, and DNA polymerase-delta. RPA is composed of a heterotrimer that includes subunits of 70 kDa (RPA1), 32kDa (RPA2), and 14kDa (RPA3). RPA2, the 32kDa subunit, is phosphorylated by the cdc2 family of kinases when cells enter S-phase and in response to DNA damage by ATM, ATR, and DNA-PK.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
DNA-PK phosphorylation of RPA32 Ser4/Ser8 regulates replication stress checkpoint activation, fork restart, homologous recombination and mitotic catastrophe
Ashley AK, et al.
DNA Repair, 21(3), 131-139 (2014)
Bacterial DNA repair genes and their eukaryotic homologues: 4. The role of nucleotide excision DNA repair (NER) system in mammalian cells.
Maddukuri L, et al.
Acta Biochimica Polonica, 54(3), 469-482 (2007)

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