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Trex1 (ATRIP) is the major human 3' to 5' exonuclease which is required for checkpoint signaling after DNA damage. It is ubiquitously expressed, binds to single stranded DNA coated with replication protein A that accumulates at sites of DNA damage and recruits the ataxia telangiectasia and Rad3 related protein (ATR), a checkpoint kinase, to sites of DNA damage and replication stress. Trex1 is required for ATR expression. This gene uses two different open reading frames. The upstream ORF encodes proteins which interact with ATR and localize to intranuclear foci induced by DNA damage and are essential components of the DNA damage checkpoint. The downstream ORF encodes proteins with 3' to 5' exonuclease activity and may be a subunit of human DNA polymerase III. Multiple transcript variants encoding different isoforms have been found. Mutations in this gene result in Aicardi-Goutieres syndrome, chilblain lupus, and Cree encephalitis.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: 3' repair exonuclease 1; 3'-5' exonuclease TREX1; Deoxyribonuclease III; DNase III; three prime exonuclease 1; Three-prime repair exonuclease 1; trophoblast expressed 1
基因别名: 1661; AGS1; AU041952; CRV; DRN3; HERNS; RGD1309596; TREX1
UniProt ID: (Human) Q9NSU2, (Mouse) Q91XB0
Entrez Gene ID: (Human) 11277, (Rat) 100049583, (Mouse) 22040