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- Table of Contents

Facts about Three-prime repair exonuclease 1.
Unless degraded, these DNA fragments accumulate in the cytosol and activate the IFN-stimulatory DNA (ISD) reaction and innate immune signaling. Prevents chronic ATM-dependent checkpoint activation, by processing ssDNA polynucleotide species arising from the processing of aberrant DNA replication intermediates.
| Human | |
|---|---|
| Gene Name: | TREX1 |
| Uniprot: | Q9NSU2 |
| Entrez: | 11277 |

| Belongs to: |
|---|
| exonuclease superfamily |

3'-5' exonuclease TREX1; AGS1; Aicardi-Goutieres syndrome 1; CRV; DKFZp434J0310; DNase III; DRN3; EC 3.1.11.2; HERNS; three prime repair exonuclease 1,3' repair exonuclease 1
Mass (kDA):
33.212 kDA

| Human | |
|---|---|
| Location: | 3p21.31 |
| Sequence: | 3; NC_000003.12 (48465830..48467645) |
Detected in thymus, spleen, liver, brain, heart, small intestine and colon.
Nucleus. Cytoplasm, cytosol. Endoplasmic reticulum membrane; Peripheral membrane protein. Retained in the cytoplasm through the C-terminal region (By similarity). In response to DNA damage, translocates to the nucleus where it is specifically recruited to replication foci. Translocation to the nucleus also occurs during GZMA-mediated cell death.






PMID: 10393201 by Hoess M., et al. A human DNA editing enzyme homologous to the Escherichia coli DnaQ/MutD protein.
PMID: 10391904 by Mazur D.J., et al. Identification and expression of the TREX1 and TREX2 cDNA sequences encoding mammalian 3'-->5' exonucleases.