- Concept UI
- M000632192
- Related Numbers
- EC 3.6.-
- Scope Note
- A host restriction triphosphorylhydrolase and dNTPase that contains an N-terminal STERILE ALPHA MOTIF and central, conserved ASPARTATE and HISTIDINE (HD) domain. It acts on single-stranded RNA, yielding deoxynucleosides and triphosphate, and functions in anti-viral defense through its dNTPase activity, reducing cellular dNTP levels below what is required for retroviral reverse transcription in DENDRITIC CELLS and MYELOID CELLS. It also has RIBONUCLEASE activity which blocks early replication of retroviruses such as HIV-1. Mutations in the SAMHD1 gene are associated with type 5 Aicardi-Goutieres syndrome (AGS5) and type 2 chilblain LUPUS (CHBL2).
- Terms
-
SAM Domain and HD Domain-Containing Protein 1
Preferred Term
Term UI
T000925477
Date05/26/2017
LexicalTag
NON
ThesaurusID
NLM (2018)
-
SAMHD1 Protein
Term UI
T000925478
Date05/26/2017
LexicalTag
ABX
ThesaurusID
NLM (2018)
-
SAMHD1 dNTPase
Term UI
T000925479
Date05/26/2017
LexicalTag
ABB
ThesaurusID
NLM (2018)
-
SAMHD1 Deoxynucleoside Triphosphate Triphosphohydrolase
Term UI
T000925480
Date05/26/2017
LexicalTag
ABX
ThesaurusID
NLM (2018)