GFPT1
Glutamine--fructose-6-phosphate aminotransferase [isomerizing] 1
Also known as: GFA, GFAT, GFAT1, GFPT, GFPT1_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q06210
- Gene
- GFPT1
- Ensembl
- ENSG00000198380
- Chromosome
- 2
- Canonical length
- 699 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins, Predicted membrane proteins
- Subcellular location
- Nucleoplasm,Nucleoli,Nucleoli fibrillar center
- Quaternary structure
- Homotetramer
OverviewNCBI Gene
This gene encodes the first and rate-limiting enzyme of the hexosamine pathway and controls the flux of glucose into the hexosamine pathway. The product of this gene catalyzes the formation of glucosamine 6-phosphate. [provided by RefSeq, Sep 2008]
Canonical amino-acid sequenceUniProt
699 residues, UniProt reviewed canonical sequence.
>Q06210|GFPT1
1 MCGIFAYLNY HVPRTRREIL ETLIKGLQRL EYRGYDSAGV GFDGGNDKDW EANACKIQLI
61 KKKGKVKALD EEVHKQQDMD LDIEFDVHLG IAHTRWATHG EPSPVNSHPQ RSDKNNEFIV
121 IHNGIITNYK DLKKFLESKG YDFESETDTE TIAKLVKYMY DNRESQDTSF TTLVERVIQQ
181 LEGAFALVFK SVHFPGQAVG TRRGSPLLIG VRSEHKLSTD HIPILYRTAR TQIGSKFTRW
241 GSQGERGKDK KGSCNLSRVD STTCLFPVEE KAVEYYFASD ASAVIEHTNR VIFLEDDDVA
301 AVVDGRLSIH RIKRTAGDHP GRAVQTLQME LQQIMKGNFS SFMQKEIFEQ PESVVNTMRG
361 RVNFDDYTVN LGGLKDHIKE IQRCRRLILI ACGTSYHAGV ATRQVLEELT ELPVMVELAS
421 DFLDRNTPVF RDDVCFFLSQ SGETADTLMG LRYCKERGAL TVGITNTVGS SISRETDCGV
481 HINAGPEIGV ASTKAYTSQF VSLVMFALMM CDDRISMQER RKEIMLGLKR LPDLIKEVLS
541 MDDEIQKLAT ELYHQKSVLI MGRGYHYATC LEGALKIKEI TYMHSEGILA GELKHGPLAL
601 VDKLMPVIMI IMRDHTYAKC QNALQQVVAR QGRPVVICDK EDTETIKNTK RTIKVPHSVD
661 CLQGILSVIP LQLLAFHLAV LRGYDVDFPR NLAKSVTVELocalizationUniProt · AlphaFold · HPA
Whether an antibody against GFPT1 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.22
- Highest tissue expression
- 86 nTPM
Expression across tissuesHPA
Tissue
- thyroid gland: 86 nTPM
- rectum: 72 nTPM
- colon: 70 nTPM
- stomach: 61 nTPM
- testis: 44 nTPM
- salivary gland: 40 nTPM
Single-cell type
- goblet cells: 461 nCPM
- mucous neck cells: 343 nCPM
- foveolar cells: 319 nCPM
- somatotrophs: 279 nCPM
- colonocytes: 265 nCPM
- gastric chief cells: 262 nCPM
Immune cell
- basophil: 9.3 nTPM
- memory CD8 T-cell: 8.3 nTPM
- gdT-cell: 7.5 nTPM
- MAIT T-cell: 7 nTPM
- memory B-cell: 6.5 nTPM
- memory CD4 T-cell: 6.5 nTPM
Brain region
- choroid plexus: 79 nTPM
- hypothalamus: 36 nTPM
- pons: 36 nTPM
- midbrain: 35 nTPM
- thalamus: 29 nTPM
- cerebral cortex: 27 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about GFPT1.
Disease | AllUniProt
Conditions GFPT1 is implicated in, by any mechanism.
- Myasthenic syndrome, congenital, 12 (CMS12) MIM:610542
Disease | GeneticClinVar
47 pathogenic / likely-pathogenic of 651 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Congenital myasthenic syndrome 12
- Congenital myasthenic syndrome
- Congenital myasthenic syndrome 4C
- Abnormality of the musculature
- GFPT1-related myasthenic syndrome
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)
- 0.34
- gnomAD pLI
- 0.9
- gnomAD missense Z
- 4.35
- DepMap mean gene effect
- -0.55
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- circadian regulation of gene expression
- energy reserve metabolic process
- fructose 6-phosphate metabolic process
- protein N-linked glycosylation
- UDP-N-acetylglucosamine biosynthetic process
- UDP-N-acetylglucosamine metabolic process
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- SIS domain
- Glucosamine-fructose-6-phosphate aminotransferase, isomerising
- Glutamine amidotransferase type 2 domain
- Nucleophile aminohydrolases, N-terminal
- GlmS/AgaS, SIS domain 1
- GlmS/FrlB, SIS domain 2
- SIS domain superfamily
- Glucosamine-fructose-6-phosphate aminotransferase, isomerising, N-terminal domain
- SIS domain
- Glutamine amidotransferase domain
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads GFPT1 as an antibody target. Whether an autoantibody or antibody against GFPT1 could matter depends on whether native GFPT1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
GFPT1 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 GFPT1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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