Mouse Anti-RPA2 Recombinant Antibody (10G1) (CBMAB-R3284-CN)

Name: Mouse Anti-RPA2 Recombinant Antibody (10G1)
SKU: CBMAB-R3284-CN
Rating: 5 (1 reviews)

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Datasheet

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Basic Information

Host Animal

Mouse

Clone

10G1

Application

FC, IHC, WB

Immunogen

A full length recombinant protein of human RPA2 (NP_002937) produced in HEK293T cells

Specificity

Human

Antibody Isotype

IgG1

Clonality

Monoclonal

Application Notes

The COA includes recommended starting dilutions, optimal dilutions should be determined by the end user.

Formulations & Storage [For reference only, actual COA shall prevail!]

Buffer

PBS, pH 7.3, 1% BSA, 50% Glycerol

Preservative

0.02% Sodium azide

Concentration

0.5-1 mg/mL

More Infomation

Target

Full Name

Replication Protein A2

Introduction

This gene encodes a subunit of the heterotrimeric Replication Protein A (RPA) complex, which binds to single-stranded DNA (ssDNA), forming a nucleoprotein complex that plays an important role in DNA metabolism, being involved in DNA replication, repair, recombination, telomere maintenance, and co-ordinating the cellular response to DNA damage through activation of the ataxia telangiectasia and Rad3-related protein (ATR) kinase. The RPA complex protects single-stranded DNA from nucleases, prevents formation of secondary structures that would interfere with repair, and co-ordinates the recruitment and departure of different genome maintenance factors. The heterotrimeric complex has two different modes of ssDNA binding, a low-affinity and high-affinity mode, determined by which oligonucleotide/oligosaccharide-binding (OB) domains of the complex are utilized, and differing in the length of DNA bound. This subunit contains a single OB domain that participates in high-affinity DNA binding and also contains a winged helix domain at its carboxy terminus, which interacts with many genome maintenance protein. Post-translational modifications of the RPA complex also plays a role in co-ordinating different damage response pathways. [provided by RefSeq, Sep 2017]

Entrez Gene ID

6118

UniProt ID

P15927

Alternative Names

Replication Protein A2; Replication Protein A 34 KDa Subunit; Replication Factor A Protein 2; RF-A Protein 2; RP-A P32; RP-A P34; REPA2;

Function

As part of the heterotrimeric replication protein A complex (RPA/RP-A), binds and stabilizes single-stranded DNA intermediates, that form during DNA replication or upon DNA stress. It prevents their reannealing and in parallel, recruits and activates different proteins and complexes involved in DNA metabolism. Thereby, it plays an essential role both in DNA replication and the cellular response to DNA damage. In the cellular response to DNA damage, the RPA complex controls DNA repair and DNA damage checkpoint activation. Through recruitment of ATRIP activates the ATR kinase a master regulator of the DNA damage response. It is required for the recruitment of the DNA double-strand break repair factors RAD51 and RAD52 to chromatin in response to DNA damage. Also recruits to sites of DNA damage proteins like XPA and XPG that are involved in nucleotide excision repair and is required for this mechanism of DNA repair. Plays also a role in base excision repair (BER) probably through interaction with UNG. Also recruits SMARCAL1/HARP, which is involved in replication fork restart, to sites of DNA damage. May also play a role in telomere maintenance.

Biological Process

Base-excision repairManual Assertion Based On ExperimentIDA:UniProtKB
DNA replicationManual Assertion Based On ExperimentIDA:UniProtKB
Double-strand break repair via homologous recombinationManual Assertion Based On ExperimentIMP:UniProtKB
Mismatch repairManual Assertion Based On ExperimentIMP:UniProtKB
Mitotic G1 DNA damage checkpoint signalingManual Assertion Based On ExperimentIMP:UniProtKB
Nucleotide-excision repairManual Assertion Based On ExperimentIMP:UniProtKB
Protein localization to chromosomeManual Assertion Based On ExperimentIDA:UniProtKB
Regulation of DNA damage checkpointManual Assertion Based On ExperimentIMP:UniProtKB
Regulation of double-strand break repair via homologous recombinationManual Assertion Based On ExperimentIMP:UniProtKB
Telomere maintenanceManual Assertion Based On ExperimentIMP:UniProtKB

Cellular Location

Nucleus
Nucleus, PML body
Redistributes to discrete nuclear foci upon DNA damage in an ATR-dependent manner.

PTM

Differentially phosphorylated throughout the cell cycle, becoming phosphorylated at the G1-S transition and dephosphorylated in late mitosis. Mainly phosphorylated at Ser-23 and Ser-29, by cyclin A-CDK2 and cyclin B-CDK1, respectively during DNA replication and mitosis. Dephosphorylation may require the serine/threonine-protein phosphatase 4. Phosphorylation at Ser-23 and Ser-29 is a prerequisite for further phosphorylation. Becomes hyperphosphorylated on additional residues including Ser-4, Ser-8, Thr-21 and Ser-33 in response to DNA damage. Hyperphosphorylation is mediated by ATM, ATR and PRKDC. Primarily recruited to DNA repair nuclear foci as a hypophosphorylated form it undergoes subsequent hyperphosphorylation, catalyzed by ATR. Hyperphosphorylation is required for RAD51 recruitment to chromatin and efficient DNA repair. Phosphorylation at Thr-21 depends upon RFWD3 presence.
DNA damage-induced 'Lys-63'-linked polyubiquitination by PRPF19 mediates ATRIP recruitment to the RPA complex at sites of DNA damage and activation of ATR (PubMed:24332808).
Ubiquitinated by RFWD3 at stalled replication forks in response to DNA damage: ubiquitination by RFWD3 does not lead to degradation by the proteasome and promotes removal of the RPA complex from stalled replication forks, promoting homologous recombination (PubMed:26474068).

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Please try the standard protocols which include: protocols, troubleshooting and guide.

Enzyme-linked Immunosorbent Assay (ELISA)
Flow Cytometry
Immunofluorescence (IF)
Immunohistochemistry (IHC)
Immunoprecipitation (IP)
Western Blot (WB)
Enzyme Linked Immunospot (ELISpot)
Proteogenomic
Other Protocols

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Isotype control

For research use only. Not intended for any clinical use.

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