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Antibodies

POLQ Antibody

Product Sizes
100 ug
£496.00
OAAF02053-100UG
About this Product
SKU:
OAAF02053
Additional Names:
DNA polymerase eta;DNA polymerase theta;epididymis secretory sperm binding protein;polymerase (DNA directed); theta;polymerase (DNA) theta;PRO0327.
Clonality:
Polyclonal
Extra Details:
DNA polymerase that promotes microhomology-mediated end-joining (MMEJ); an alternative non-homologous end-joining (NHEJ) machinery triggered in response to double-strand breaks in DNA (PubMed:25642963; PubMed:25643323). MMEJ is an error-prone repair pathway that produces deletions of sequences from the strand being repaired and promotes genomic rearrangements; such as telomere fusions; some of them leading to cellular transformation (PubMed:25642963; PubMed:25643323). POLQ acts as an inhibitor of homology-recombination repair (HR) pathway by limiting RAD51 accumulation at resected ends (PubMed:25642963). POLQ-mediated MMEJ may be required to promote the survival of cells with a compromised HR repair pathway; thereby preventing genomic havoc by resolving unrepaired lesions (By similarity). The polymerase acts by binding directly the 2 ends of resected double-strand breaks; allowing microhomologous sequences in the overhangs to form base pairs. It then extends each strand from the base-paired region using the opposing overhang as a template. Requires partially resected DNA containing 2 to 6 base pairs of microhomology to perform MMEJ (PubMed:25643323). The polymerase activity is highly promiscuous: unlike most polymerases; promotes extension of ssDNA and partial ssDNA (pssDNA) substrates (PubMed:18503084; PubMed:21050863; PubMed:22135286). Also exhibits low-fidelity DNA synthesis; translesion synthesis and lyase activity; and it is implicated in interstrand-cross-link repair; base excision repair and DNA end-joining (PubMed:14576298; PubMed:18503084; PubMed:19188258; PubMed:24648516). Involved in somatic hypermutation of immunoglobulin genes; a process that requires the activity of DNA polymerases to ultimately introduce mutations at both A/T and C/G base pairs (By similarity).
Gene Details:
DNA polymerase theta
Host:
Rabbit
Immunogen:
The antiserum was produced against synthesized peptide derived from human POLQ.
Molecular Weight:
197 kDa
Protein Details:
DNA polymerase theta
Purification:
The antibody was purified from rabbit antiserum by affinity-chromatography using immunogen.
Shipping Conditions:
Blue Ice
Storage Conditions:
-20Â[o]C
Supplier:
Aviva Systems Biology
Type:
Antibodies: Polyclonal Antibody