Anti-RPA2 p34 Antibody, clone RPA20 1-46

from mouse, clone RPA20, clone 1-46

RF-A protein 2, RP-A p32, RP-A p34, Replication factor A protein 2, replication protein A2 (32kD), replication protein A2, 32kDa, Replication protein A 32kDa subunit, RF-A, replication factor-A protein 2, p32, p34, RPA2, REPA2, RPA32.

Quality Level

biological source


antibody product type

primary antibodies


1-46, monoclonal
RPA20, monoclonal

species reactivity

mouse, human


antibody small pack of 25 μg


western blot: suitable



NCBI accession no.

UniProt accession no.

shipped in


General description

RPA is a heterotrimeric protein complex that binds specifically to single-stranded DNA (ssDNA). It is composed of three subunits, RPA1 (70 kDa), RPA2 (32 kDa), and RPA3 (14 kDa), and plays multiple roles in DNA metabolism. RPA is required for DNA replication initiation, as well as replication elongation. At the onset of DNA replication, RPA is loaded onto chromatin after the binding of Cdc45 to origins. RPA is needed for subsequent loading of DNA polymerase and other replication proteins to initiate DNA replication. After DNA replication begins, RPA moves with replication forks, stabilizing ssDNA and assisting in DNA synthesis. In addition to its replication function, RPA is also known to play essential roles in damage repair and recombination.The 32 kDa 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. Alternate names for RPA32 include replication protein A 32 kDa subunit, RP-A, RF-A, replication factor-A protein 2, p32, p34, RPA2, REPA2, and RPA32.


This antibody recognizes RPA2.


His-tagged recombinant protein corresponding to human RPA2.
Epitope: Unknown


Research Sub Category
Cell Cycle, DNA Replication & Repair

Chromatin Biology
Anti-RPA2 p34 Antibody, clone RPA20 1-46 is a Mouse Monoclonal Antibody for detection of RPA2 p34 also known as Replication factor A protein 2 & has been validated in WB.
Western Blot (SNAP ID) Analysis: 0.5 µg/mL from a previous lot detected RPA2 on 10 µg of NIH/3T3 cell lysate.
Research Category
Epigenetics & Nuclear Function


Evaluated by Western Blot in HeLa cell lysate.

Western Blot Analysis: 0.5 µg/mL of this antibody detected RPA2 on 10 µg of HeLa cell lysate.

Target description

~32 kDa

Physical form

Purified mouse monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4, 150 mM NaCl) with 0.05% sodium azide.
Format: Purified
Protein G Purified

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Analysis Note

HeLa cell lysate

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.


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.
Jang-Won Ahn et al.
Nucleic acids research, 43(13), 6321-6333 (2015-06-13)
DNA double-strand breaks (DSBs) are the most severe type of DNA damage and are primarily repaired by non-homologous end joining (NHEJ) and homologous recombination (HR) in the G1 and S/G2 phase, respectively. Although CtBP-interacting protein (CtIP) is crucial in DNA...
Lauren M Young et al.
Cell reports, 13(3), 451-459 (2015-10-13)
PARP1 is the main sensor of single- and double-strand breaks in DNA and, in building chains of poly(ADP-ribose), promotes the recruitment of many downstream signaling and effector proteins involved in the DNA damage response (DDR). We show a robust physical...
Nanda Kumar Sasi et al.
Neoplasia (New York, N.Y.), 20(10), 985-995 (2018-08-30)
CDC7-DBF4 kinase (DDK) initiates DNA replication in eukaryotes by activating the replicative MCM helicase. DDK has diverse and apparently conflicting roles in the replication checkpoint response in various organisms, but the underlying mechanisms are far from settled. We show that...




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