ArticleVirology2013
Contribution of SAM and HD domains to retroviral restriction mediated by human SAMHD1.
Article in Virology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers.
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Who cites it
98 citing papers in PubMed, 140 citations in OpenAlex.
- Host factor SAMHD1 restricts DNA viruses in non-dividing myeloid cells.PLoS pathogens · 2013Trial
- Host restriction factor SAMHD1 does not restrict seasonal influenza virus replication in human epithelial or macrophage-like cells.Virology journal · 2026Article
- SAMHD1 enhances HIV-1-induced apoptosis in monocytic cells via the mitochondrial pathway.mBio · 2025Article
- Reaction Mechanism and Metal Selectivity of Human SAMHD1 Elucidated by QM/MM Calculations.ACS catalysis · 2025Article
- dNTP depletion and beyond: the multifaceted nature of SAMHD1-mediated viral restriction.Journal of virology · 2025Review
- Functional genetics reveals modulators of antimicrotubule drug sensitivity.The Journal of cell biology · 2025Article
- Nuclear Overexpression of SAMHD1 Induces M Phase Stalling in Hepatoma Cells and Suppresses HCC Progression by Interacting with the Cohesin Complex.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Functional conservation and divergence of arabidopsis VENOSA4 and human SAMHD1 in DNA repair.Heliyon · 2025Article
- Review
- Protocol for generating human CAR-engineered macrophages by Vpx-containing lentivirus.STAR protocols · 2024Article
- Article
- Article
- Functional genetics reveals modulators of anti-microtubule drug sensitivity.bioRxiv : the preprint server for biology · 2024Article
- Review
- Attenuation of reverse transcriptase facilitates SAMHD1 restriction of HIV-1 in cycling cells.Retrovirology · 2023Article
- A nuclear orthologue of the dNTP triphosphohydrolase SAMHD1 controls dNTP homeostasis and genomic stability inFrontiers in cellular and infection microbiology · 2023Article
- Review
- Sterile alpha motif and histidine-aspartic acid domain-containing protein 1 expression and its relationship with T cell activation in human immunodeficiency virus/acquired immune deficiency syndrome patients with lung-spleen deficiency syndrome pattern.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2022Article
- HIV-2 Vpx neutralizes host restriction factor SAMHD1 to promote viral pathogenesis.Scientific reports · 2021Article
- Structural and functional characterization explains loss of dNTPase activity of the cancer-specific R366C/H mutant SAMHD1 proteins.The Journal of biological chemistry · 2021Article
38 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
The human SAMHD1 protein is a novel retroviral restriction factor expressed in myeloid cells. Previous work has correlated the deoxynucleotide triphosphohydrolase activity of SAMHD1 with its ability to block HIV-1 and SIV(mac) infection. SAMHD1 is comprised of the sterile alpha motif (SAM) and histidine-aspartic (HD) domains; however the contribution of these domains to retroviral restriction is not understood. Mutagenesis and deletion studies revealed that expression of the sole HD domain of SAMHD1 is sufficient to achieve potent restriction of HIV-1 and SIV(mac). We demonstrated that the HD domain of SAMHD1 is essential for the ability of SAMHD1 to oligomerize by using a biochemical assay. In agreement with previous observations, we mapped the RNA-binding ability of SAMHD1 to the HD domain. We also demonstrated a direct interaction of SAMHD1 with RNA by using enzymatically-active purified SAMHD1 protein from insect cells. Interestingly, we showed that double-stranded RNA inhibits the enzymatic activity of SAMHD1 in vitro suggesting the possibility that RNA from a pathogen might modulate the enzymatic activity of SAMHD1 in cells. By contrast, we found that the SAM domain is dispensable for retroviral restriction, oligomerization and RNA binding. Finally we tested the ability of SAMHD1 to block the infection of retroviruses other than HIV-1 and SIV(mac). These results showed that SAMHD1 blocks infection of HIV-2, feline immunodeficiency virus (FIV), bovine immunodeficiency virus (BIV), Equine infectious anemia virus (EIAV), N-tropic murine leukemia virus (N-MLV), and B-tropic murine leukemia virus (B-MLV).
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.