GBP3
Guanylate-binding protein 3
Also known as: FLJ10961, GBP3_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9H0R5
- Gene
- GBP3
- Ensembl
- ENSG00000117226
- Chromosome
- 1
- Canonical length
- 595 aa
- Protein class
- Predicted intracellular proteins
OverviewNCBI Gene
This gene encodes a member of the guanylate-binding protein (GBP) family. GBPs specifically bind guanine nucleotides (GMP, GDP, and GTP) and contain two of the three consensus motifs found in typical GTP-binding proteins. The encoded protein interacts with a member of the germinal center kinase family. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2017]
Canonical amino-acid sequenceUniProt
595 residues, UniProt reviewed canonical sequence.
>Q9H0R5|GBP3
1 MAPEIHMTGP MCLIENTNGE LVANPEALKI LSAITQPVVV VAIVGLYRTG KSYLMNKLAG
61 KNKGFSLGST VKSHTKGIWM WCVPHPKKPE HTLVLLDTEG LGDVKKGDNQ NDSWIFTLAV
121 LLSSTLVYNS MGTINQQAMD QLYYVTELTH RIRSKSSPDE NENEDSADFV SFFPDFVWTL
181 RDFSLDLEAD GQPLTPDEYL EYSLKLTQGT SQKDKNFNLP RLCIRKFFPK KKCFVFDLPI
241 HRRKLAQLEK LQDEELDPEF VQQVADFCSY IFSNSKTKTL SGGIKVNGPR LESLVLTYIN
301 AISRGDLPCM ENAVLALAQI ENSAAVQKAI AHYDQQMGQK VQLPAETLQE LLDLHRVSER
361 EATEVYMKNS FKDVDHLFQK KLAAQLDKKR DDFCKQNQEA SSDRCSALLQ VIFSPLEEEV
421 KAGIYSKPGG YCLFIQKLQD LEKKYYEEPR KGIQAEEILQ TYLKSKESVT DAILQTDQIL
481 TEKEKEIEVE CVKAESAQAS AKMVEEMQIK YQQMMEEKEK SYQEHVKQLT EKMERERAQL
541 LEEQEKTLTS KLQEQARVLK ERCQGESTQL QNEIQKLQKT LKKKTKRYMS HKLKILocalizationUniProt · AlphaFold · HPA
Whether an antibody against GBP3 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Other membrane
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.28
- Highest tissue expression
- 74 nTPM
Expression across tissuesHPA
Tissue
- duodenum: 74 nTPM
- small intestine: 57 nTPM
- colon: 37 nTPM
- stomach: 30 nTPM
- rectum: 26 nTPM
- urinary bladder: 26 nTPM
Single-cell type
- enterocytes: 128 nCPM
- epididymal basal cells: 96 nCPM
- salivary duct cells: 90 nCPM
- colonocytes: 86 nCPM
- foveolar cells: 79 nCPM
- urothelial cells: 73 nCPM
Immune cell
- non-classical monocyte: 14 nTPM
- gdT-cell: 12 nTPM
- MAIT T-cell: 11 nTPM
- memory CD4 T-cell: 11 nTPM
- memory CD8 T-cell: 10 nTPM
- naive CD8 T-cell: 9.9 nTPM
Brain region
- medulla oblongata: 8 nTPM
- hypothalamus: 6.9 nTPM
- white matter: 6.9 nTPM
- pons: 5.8 nTPM
- midbrain: 5.5 nTPM
- spinal cord: 5.5 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.34
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.04
- DepMap mean gene effect
- 0.03
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cellular response to interleukin-1
- cellular response to lipopolysaccharide
- cellular response to tumor necrosis factor
- cellular response to type II interferon
- cytolysis in another organism
- defense response to bacterium
- defense response to virus
- positive regulation of pyroptotic inflammatory response
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Guanylate-binding protein/Atlastin, C-terminal
- Guanylate-binding protein, N-terminal
- P-loop containing nucleoside triphosphate hydrolase
- GB1/RHD3-type guanine nucleotide-binding (G) domain
- Guanylate-binding protein, C-terminal domain superfamily
- Guanylate-binding protein, C-terminal
- Guanylate-binding protein, N-terminal domain
- Guanylate-binding protein, C-terminal domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of GBP3 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads GBP3 as an antibody target. Whether an autoantibody or antibody against GBP3 could matter depends on whether native GBP3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
GBP3 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label GBP3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
Loading the interactive Seroatlas protein explorer...