Recombinant Human Replication protein A 14 kDa subunit (RPA3), partial
| Product Name | Recombinant Human Replication protein A 14 kDa subunit (RPA3), partial |
|---|---|
| Description | 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 . Through RFWD3 may activate CHEK1 and play a role in replication checkpoint control. Also recruits SMARCAL1/HARP, which is involved in replication fork restart, to sites of DNA damage. May also play a role in telomere maintenance. RPA3 has its own single-stranded DNA-binding activity and may be responsible for polarity of the binding of the complex to DNA . As part of the alternative replication protein A complex, aRPA, binds single-stranded DNA and probably plays a role in DNA repair. Compared to the RPA2-containing, canonical RPA complex, may not support chromosomal DNA replication and cell cycle progression through S-phase. The aRPA may not promote efficient priming by DNA polymerase alpha but could support DNA synthesis by polymerase delta in presence of PCNA and replication factor C (RFC), the dual incision/excision reaction of nucleotide excision repair and RAD51-dependent strand exchange . |
| Synonyms | Replication factor A protein 3 , RF-A protein 3 |
| Host | E.coli |
| Molecular Weight | 40.3 |
| Amino Acid Sequence | MVDMMDLPRSRINAGMLAQFIDKPVCFVGRLEKIHPTGKMFILSDGEGKNGTIELMEPLDEEISGIVEVVGRVTAKATILCTSYVQFKEDSHPFDLGLYNEAVKIIHDFPQFYPLGIVQ |
| Protein Length | Partial, 1-119aa |
| Tag | N-terminal GST-tagged |
| Reactivity | Human |
| Applications | SDS-PAGE |
| Form | Liquid, in Tris-based buffer, 50% glycerol |
| Purity | Greater than 90% as determined by SDS-PAGE. |
| References | Cloning, overexpression, and genomic mapping of the 14-kDa subunit of human replication protein A.Umbricht C.B., Kelly T.J.J. Biol. Chem. 268:6131-6138(1993) |
| Background | 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 . Through RFWD3 may activate CHEK1 and play a role in replication checkpoint control. Also recruits SMARCAL1/HARP, which is involved in replication fork restart, to sites of DNA damage. May also play a role in telomere maintenance. RPA3 has its own single-stranded DNA-binding activity and may be responsible for polarity of the binding of the complex to DNA . As part of the alternative replication protein A complex, aRPA, binds single-stranded DNA and probably plays a role in DNA repair. Compared to the RPA2-containing, canonical RPA complex, may not support chromosomal DNA replication and cell cycle progression through S-phase. The aRPA may not promote efficient priming by DNA polymerase alpha but could support DNA synthesis by polymerase delta in presence of PCNA and replication factor C (RFC), the dual incision/excision reaction of nucleotide excision repair and RAD51-dependent strand exchange . |
| Supplier | Cusabio |
All Research Products are sold for laboratory RESEARCH USE ONLY and ARE NOT TO BE USED FOR HUMAN OR ANIMAL THERAPEUTIC OR DIAGNOSTIC APPLICATIONS. The information presented is believed to be accurate; however, said information and products are offered without warranty or guarantee since the ultimate conditions of use and the variability of the materials treated are beyond our control. Nothing disclosed herein is to be construed as a recommendation to use our products in violation of any patents. ARP American Research Products, Inc. does not submit its products for regulatory review by any government body or other organization, and we do not validate them for clinical, therapeutic or diagnostic use, or for safety and effectiveness. You are solely responsible for making sure that the way you use the products complies with applicable laws, regulations and governmental policies and for obtaining all necessary approvals, intellectual property rights, licenses and permissions that you may need related to your use. Under no circumstances shall ARP American Research Products, Inc. be liable for damages, whether consequential, compensatory, incidental or special, strict liability or negligence, breach of warranty or any other theory arising out of the use of the products available from ARP American Research Products, Inc. Nothing contained herein warrants that the use of the products will not infringe on the claims of any patents covering the product itself or the use thereof in combination with other products or in the operation of any process. ARP American Research Products, Inc. disclaims any and all representations or warranties of any kind whatsoever, express or implied, including without limitation any implied warranties of merchantability or fitness for a particular purpose, of non-infringement, or regarding results obtained through the use of any product, whether arising from a statute or otherwise in law or from a course of performance, dealing or usage of trade.
