General Information


DRAVPR ID  DRAVPR0057

Name   Deoxynucleoside triphosphate triphosphohydrolase SAMHD1

Sequence 

Sequence Length  626

Source  Homo sapiens (Human)

UniProt ID Q9Y3Z3

Gene SAMHD1



Activity Information


Target Organism  HIV-1

Activity 

  • [Ref.21613998]Human immunodeficiency virus type 1(HIV-1):dNTPase activity reduces cellular dNTP levels to levels too low for retroviral reverse transcription to occur, blocking early-stage virus replication in dendritic and other myeloid cells.



Structure Information


PDB ID  2E8O  4BZB  4MZ7  4QFY  4RXQ  4TNP  4TO4  6CM2  6DWD  6TXC  7LTT 

Predicted Structure Download  AF-Q9Y3Z3-F1

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Modification  ①Phosphorylation of Ser at position 18,33,93.②The N-terminal is acetylation.③Phosphorylation of Thr at position 21,25,592.



Comment


MX2 suppresses infection by all HIV-1 strains tested, has equivalent or reduced effects on divergent simian immunodeficiency viruses, and does not inhibit other retroviruses such as murine leukaemia virus.



Literature Information


Literature 1

Title   Vpx relieves inhibition of HIV-1 infection of macrophages mediated by the SAMHD1 protein.

Pubmed ID   21720370

Author   Hrecka K, Hao C, Gierszewska M, Swanson SK, Kesik-Brodacka M, Srivastava S, Florens L, Washburn MP, Skowronski J. 

Literature 2

Title   SAMHD1 is the dendritic- and myeloid-cell-specific HIV-1 restriction factor counteracted by Vpx.

Pubmed ID   21613998

Author   Laguette N, Sobhian B, Casartelli N, Ringeard M, Chable-Bessia C, Ségéral E, Yatim A, Emiliani S, Schwartz O, Benkirane M.