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RAD9A (Cell Cycle Checkpoint Control Protein RAD9A, hRAD9, DNA Repair Exonuclease Rad9 Homolog A)

RAD9A (Cell Cycle Checkpoint Control Protein RAD9A, hRAD9, DNA Repair Exonuclease Rad9 Homolog A)

Cat no: R0444-65H

Supplier: United States Biological
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Component of the 9-1-1 cell-cycle checkpoint response complex that plays a major role in DNA repair. The 9-1-1 complex is recruited to DNA lesion upon damage by the RAD17-replication factor C (RFC) clamp loader complex. Acts then as a sliding clamp platform on DNA for several proteins involved in long-patch base excision repair (LP-BER). The 9-1-1 complex stimulates DNA polymerase beta (POLB) activity by increasing its affinity for the 3'-OH end of the primer-template and stabilizes POLB to those sites where LP-BER proceeds; endonuclease FEN1 cleavage activity on substrates with double, nick, or gap flaps of distinct sequences and lengths; and DNA ligase I (LIG1) on long-patch base excision repair substrates. The 9-1-1 complex is necessary for the recruitment of C12orf32/RHINO to sites of double-stranded breaks (DSB) occurring during the S phase. RAD9A possesses 3'->5' double stranded DNA exonuclease activity. Its phosphorylation by PRKCD may be required for the formation of the 9-1-1 complex. Applications: Suitable for use in ELISA and Western Blot. Other applications not tested. Recommended Dilution: ELISA: 1:32,000 Western Blot: 0.3-1ug/ml, observed in lysates of cell lines A431 and Daudi on ~70kD bands Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Catalogue number: R0444-65H
Reactivities: Human, Mouse, Canine
Hosts: Goat
Applications: ELISA, Western Blot
Size: 100ug
Form: Supplied as a liquid in Tris saline, 0.02% sodium azide, pH 7.3, 0.5% BSA.
P type: Pab
Purity: Purified by immunoaffinity chromatography.
References: 1. Brandt PD, Helt CE, Keng PC, Bambara RA. The Rad9 protein enhances survival and promotes DNA repair following exposure to ionizing radiation. Biochem Biophys Res Commun. 2006 Aug 18;347(1):232-7. Epub 2006 Jun 21.
Additional info: Recognizes human RAD9A. Species sequence homology: Canine and mouse.

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