Warning
You are using a web browser that we do not support. Our website will not work properly. Please update to a newer version or download a new web browser, such as Chrome or Firefox.
Contact us
Toggle navigation
RCSB PDB
Deposit
Prepare Data
PDBx/mmCIF file
pdb_extract
SF-Tool
Ligand Expo
MAXIT
Validate Data
Validation Server
Validation API
Information for Journals
Validation Task Forces
Deposit Data
wwPDB OneDep System
PDB-Dev
Help and Resources
Deposit FAQ
Validation FAQ
Tutorials
Annotation Policies
Processing Procedures
PDBx/mmCIF Dictionary
Chemical Component Dictionary
Biologically Interesting Molecule Reference Dictionary (BIRD)
BioSync/Beamlines/Facilities
Related Tools
Search
Advanced Search
Sequence Similarity Search
Structure Similarity Search
Chemical Similarity Search
Chemical Sketch Tool
Browse by Annotations
New Entries
Unreleased Entries
PDB Statistics
Visualize
Mol* (MolStar)
Sequence Annotations Viewer
Genome View
Analyze
Pairwise Structure Alignment
Symmetry Resources in the PDB
Structure Quality
Grouping Structures
PDB Citation MeSH Network Explorer
PDB Statistics
EPPIC Biological Assemblies
External Data and Resources
Integrated Resources
Additional Resources
Download
Coordinates and Experimental Data
Sequences
Ligands
File Download Services
Web Services
Learn
Training Courses
Guide to PDB Data
Molecule of the Month
Educational Resources
Curricula
Browse
News
SciArt Galleries
Irving Geis
David Goodsell
About
Contact Us
About RCSB PDB
Vision and Mission
Citation, Usage, Privacy Policies, Logo
News
PDB History
PDB50
User Community
Publications
RCSB PDB Advisory Committee
Team Members
Diversity, Equity, Inclusion, and Access
Service Status
Documentation
General Help
3D Structures in the Protein Data Bank
Computed Structure Models (CSM)
Search and Browse
Basic Search
Advanced Search
Browse Annotations
Visualize and Analyze
Sequence Viewers
Pairwise Structure Alignment
Exploring a 3D Structure
Grouping Structures
Programmatic Access
Additional Resources
Software Supporters
Deposition Resources
FAQs
Glossary
Careers
COVID-19
221,716
Structures from the PDB
1,068,577
Computed Structure Models (CSM)
Navigation Tabs
Structure Summary
Structure
Annotations
Experiment
Sequence
Genome
Versions
Display Files
FASTA Sequence
mmCIF Format
mmCIF Format (Header)
PDB Format
PDB Format (Header)
Download Files
FASTA Sequence
PDBx/mmCIF Format
PDBx/mmCIF Format (gz)
BinaryCIF Format (gz)
PDB Format
PDB Format (gz)
PDBML/XML Format (gz)
EM Map EMD-18732 (map - gz)
Validation Full PDF
Validation (XML - gz)
Validation (CIF - gz)
Biological Assembly 1 (CIF - gz)
Biological Assembly 1 (PDB - gz)
Data API
8QXM
Cryo-EM structure of tetrameric human SAMHD1 State III - Relaxed
External Resource: Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Family Annotation
Pfam Database Homepage
Chains
Accession
Name
Description
Comments
Source
A
,
B
,
C
,
D
PF01966
HD domain (HD)
HD domain
-
Family
Gene Ontology: Gene Product Annotation
Gene Ontology Database Homepage
Chains
Polymer
Molecular Function
Biological Process
Cellular Component
A
,
B
,
C
,
D
Deoxynucleoside triphosphate triphosphohydrolase SAMHD1
binding
organic cyclic compound binding
nucleic acid binding
dGTP binding
guanyl nucleotide binding
deoxyribonucleotide binding
nucleotide binding
purine deoxyribonucleotide binding
nucleoside phosphate binding
ion binding
purine nucleotide binding
anion binding
guanyl deoxyribonucleotide binding
heterocyclic compound binding
binding
organic cyclic compound binding
nucleic acid binding
dGTP binding
guanyl nucleotide binding
deoxyribonucleotide binding
nucleotide binding
purine deoxyribonucleotide binding
nucleoside phosphate binding
ion binding
purine nucleotide binding
anion binding
guanyl deoxyribonucleotide binding
heterocyclic compound binding
carbohydrate derivative binding
small molecule binding
phosphoric ester hydrolase activity
triphosphoric monoester hydrolase activity
dGTPase activity
hydrolase activity, acting on ester bonds
hydrolase activity
catalytic activity
RNA binding
GTP binding
guanyl ribonucleotide binding
purine ribonucleotide binding
purine ribonucleoside triphosphate binding
ribonucleotide binding
nuclease activity
catalytic activity, acting on RNA
catalytic activity, acting on a nucleic acid
RNA nuclease activity
deoxynucleoside triphosphate hydrolase activity
cation binding
transition metal ion binding
zinc ion binding
metal ion binding
identical protein binding
protein binding
DNA binding
single-stranded DNA binding
Less
cellular response to stimulus
cellular response to stress
response to stimulus
DNA damage response
response to stress
cellular process
immune response
immune system process
nucleoside phosphate metabolic process
carbohydrate derivative catabolic process
deoxyribonucleotide catabolic process
catabolic process
cellular metabolic process
carbohydrate derivative metabolic process
cellular response to stimulus
cellular response to stress
response to stimulus
DNA damage response
response to stress
cellular process
immune response
immune system process
nucleoside phosphate metabolic process
carbohydrate derivative catabolic process
deoxyribonucleotide catabolic process
catabolic process
cellular metabolic process
carbohydrate derivative metabolic process
organophosphate catabolic process
primary metabolic process
nucleoside phosphate catabolic process
nucleotide metabolic process
nucleobase-containing compound catabolic process
nucleobase-containing compound metabolic process
deoxyribonucleotide metabolic process
organophosphate metabolic process
nucleobase-containing small molecule metabolic process
phosphate-containing compound metabolic process
metabolic process
small molecule metabolic process
phosphorus metabolic process
nucleotide catabolic process
regulation of cellular process
regulation of type I interferon-mediated signaling pathway
negative regulation of biological process
response to cytokine
regulation of signal transduction
response to biotic stimulus
cell communication
interferon-mediated signaling pathway
cellular response to type I interferon
cellular response to cytokine stimulus
regulation of immune system process
signal transduction
regulation of biological process
response to other organism
regulation of innate immune response
negative regulation of immune response
response to external stimulus
regulation of response to cytokine stimulus
negative regulation of response to cytokine stimulus
regulation of response to stimulus
response to chemical
defense response to other organism
negative regulation of response to external stimulus
negative regulation of defense response
regulation of immune response
response to type I interferon
regulation of defense response
regulation of response to biotic stimulus
biological process involved in interspecies interaction between organisms
regulation of response to external stimulus
negative regulation of response to biotic stimulus
negative regulation of signaling
signaling
negative regulation of cell communication
cytokine-mediated signaling pathway
regulation of response to stress
negative regulation of cellular process
innate immune response
response to external biotic stimulus
regulation of signaling
cell surface receptor signaling pathway
negative regulation of response to stimulus
defense response
regulation of cytokine-mediated signaling pathway
biological regulation
defense response to symbiont
negative regulation of signal transduction
response to peptide
negative regulation of immune system process
negative regulation of cytokine-mediated signaling pathway
type I interferon-mediated signaling pathway
regulation of cell communication
negative regulation of type I interferon-mediated signaling pathway
negative regulation of innate immune response
protein-containing complex organization
protein homotetramerization
cellular component organization
cellular component biogenesis
cellular component assembly
protein complex oligomerization
protein tetramerization
protein-containing complex assembly
protein homooligomerization
cellular component organization or biogenesis
immune system development
developmental process
production of molecular mediator of immune response
multicellular organismal process
immunoglobulin production
cellular biosynthetic process
somatic diversification of immune receptors via somatic mutation
gene expression
macromolecule biosynthetic process
somatic diversification of immunoglobulins
multicellular organism development
biosynthetic process
anatomical structure development
somatic diversification of immune receptors
macromolecule metabolic process
somatic hypermutation of immunoglobulin genes
system development
nucleoside triphosphate catabolic process
purine nucleoside triphosphate catabolic process
purine deoxyribonucleoside triphosphate metabolic process
dGTP metabolic process
deoxyribose phosphate catabolic process
purine nucleotide metabolic process
purine deoxyribonucleoside triphosphate catabolic process
deoxyribonucleoside triphosphate metabolic process
organonitrogen compound catabolic process
purine nucleoside triphosphate metabolic process
purine nucleotide catabolic process
purine deoxyribonucleotide catabolic process
organonitrogen compound metabolic process
2'-deoxyribonucleotide metabolic process
purine-containing compound catabolic process
deoxyribonucleoside triphosphate catabolic process
deoxyribose phosphate metabolic process
purine-containing compound metabolic process
purine deoxyribonucleotide metabolic process
nucleoside triphosphate metabolic process
dGTP catabolic process
DNA-templated DNA replication
DNA-templated DNA replication maintenance of fidelity
DNA metabolic process
nucleic acid metabolic process
DNA replication
DNA strand resection involved in replication fork processing
replication fork processing
double-strand break repair
DNA recombination
recombinational repair
double-strand break repair via homologous recombination
DNA repair
dATP metabolic process
dATP catabolic process
defense response to virus
response to virus
Less
cell periphery
plasma membrane
membrane
cellular anatomical entity
membrane-bounded organelle
intracellular anatomical structure
nucleus
membrane-enclosed lumen
intracellular membrane-bounded organelle
intracellular organelle lumen
intracellular organelle
nucleoplasm
organelle lumen
organelle
cell periphery
plasma membrane
membrane
cellular anatomical entity
membrane-bounded organelle
intracellular anatomical structure
nucleus
membrane-enclosed lumen
intracellular membrane-bounded organelle
intracellular organelle lumen
intracellular organelle
nucleoplasm
organelle lumen
organelle
nuclear lumen
site of double-strand break
intracellular non-membrane-bounded organelle
site of DNA damage
chromosome
non-membrane-bounded organelle
tetraspanin-enriched microdomain
Less
InterPro: Protein Family Classification
InterPro Database Homepage
Chains
Accession
Name
Type
A
,
B
,
C
,
D
IPR006674
HD domain
Domain
A
,
B
,
C
,
D
IPR003607
HD/PDEase domain
Domain
A
,
B
,
C
,
D
IPR013761
Sterile alpha motif/pointed domain superfamily
Homologous Superfamily
A
,
B
,
C
,
D
IPR001660
Sterile alpha motif domain
Domain
Pharos: Disease Associations
Pharos Homepage Annotation
Chains
Drug Target  
Associated Disease
A
,
B
,
C
,
D
Pharos
: 
Q9Y3Z3
Aicardi-Goutieres syndrome
chilblain lupus
Aicardi-Goutieres syndrome 5
chilblain lupus 2
mitochondrial DNA depletion syndrome, hepatocerebral form
HIV infectious disease
interstitial cystitis
leukodystrophy
lung carcinoma
adenoma
Mitochondrial Diseases
Aicardi-Goutieres syndrome 2
non-small cell lung carcinoma
astrocytic tumor
ovarian cancer
Aicardi-Goutieres syndrome
chilblain lupus
Aicardi-Goutieres syndrome 5
chilblain lupus 2
mitochondrial DNA depletion syndrome, hepatocerebral form
HIV infectious disease
interstitial cystitis
leukodystrophy
lung carcinoma
adenoma
Mitochondrial Diseases
Aicardi-Goutieres syndrome 2
non-small cell lung carcinoma
astrocytic tumor
ovarian cancer
pancreatic intraductal papillary-mucinous neoplasm
cutaneous lupus erythematosus
pituitary cancer
Emery-Dreifuss muscular dystrophy
subependymal giant cell astrocytoma
gastric carcinoma
IgA glomerulonephritis
juvenile dermatomyositis
limb-girdle muscular dystrophy
malignant glioma
oligodendroglioma
B-cell chronic lymphocytic leukemia
pancreatic ductal adenocarcinoma
pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia
pseudo-TORCH syndrome
tuberculosis
glioblastoma
intellectual disability
large cell medulloblastoma
lung cancer
medulloblastoma
Aicardi-Goutieres syndrome 1
myopathy
osteosarcoma
cerebrovascular disorder
pancreatic intraductal papillary-mucinous carcinoma
Crohn disease
pilocytic astrocytoma
Duchenne muscular dystrophy
Sjogren syndrome
facioscapulohumeral muscular dystrophy
ulcerative colitis
Less
About
About Us
Citing Us
Publications
Team
Careers
Usage & Privacy
Help
Contact Us
Documentation
Website FAQ
Glossary
Service Status
RCSB PDB (
citation
) is hosted by
RCSB PDB is a member of the
RCSB Partners
Nucleic Acid Knowledgebase
wwPDB Partners
RCSB PDB
PDBe
PDBj
BMRB
EMDB