UniProt:Q06210 GFPT1

chain
  • initiator methionine:1
  • chain:2-699
checksum F0533A7B762C7B98
comment
  • FUNCTION Rate-limiting enzyme of the hexosamine biosynthetic pathway (HBP) that catalyzes the formation of glucosamine-6-phosphate from fructose-6-phosphate and glutamine, thereby controlling the flux of glucose into this pathway (PubMed:32019926, PubMed:35229715). Inhibited by UDP-N-acetylglucosamine (UDP-GlcNAc) through a feedback loop (PubMed:32019926, PubMed:35229715). Fine-tunes the metabolic fluctuations of UDP-GlcNAc and its impacts on hyaluronan synthesis during tissue remodeling (PubMed:26887390). Via control of the HPB, regulates the availability of precursors for N- and O-linked protein glycosylation and modulates peripheral clock oscillation (By similarity).CATALYTIC ACTIVITY D-fructose 6-phosphate + L-glutamine = D-glucosamine 6-phosphate + L-glutamateACTIVITY REGULATION Inhibited by UDP-GlcNAc.BIOPHYSICOCHEMICAL PROPERTIES 3.6 kcat is sec(-1) with L-glutamine as substrate (PubMed:32019926, PubMed:35229715). 1.7 kcat is sec(-1) with D-fructose 6-phosphate as substrate (PubMed:32019926, PubMed:35229715).PATHWAY Nucleotide-sugar biosynthesis; UDP-N-acetyl-alpha-D-glucosamine biosynthesis; alpha-D-glucosamine 6-phosphate from D-fructose 6-phosphate: step 1/1.SUBUNIT Homodimer; forms an asymmetric dimer (PubMed:19059404, PubMed:32019926). Homotetramer (By similarity).INTERACTION Predominantly expressed in skeletal muscle. Not expressed in brain. Seems to be selectively expressed in striated muscle.DISEASE The disease is caused by variants affecting the gene represented in this entry.
crossReference
databaseName UniProt
dbId 55576
description
  • recommendedName: Glutamine--fructose-6-phosphate aminotransferase [isomerizing] 1 ecNumber evidence="11 12"2.6.1.16 alternativeName: D-fructose-6-phosphate amidotransferase 1 alternativeName: Glutamine:fructose-6-phosphate amidotransferase 1 shortName: GFAT 1 shortName evidence="15"GFAT1 alternativeName: Hexosephosphate aminotransferase 1
displayName UniProt:Q06210 GFPT1
geneName
  • GFPT1
  • GFAT
  • GFPT
identifier Q06210
isSequenceChanged false
keyword
  • 3D-structure
  • Alternative splicing
  • Aminotransferase
  • Biological rhythms
  • Congenital myasthenic syndrome
  • Disease variant
  • Glutamine amidotransferase
  • Phosphoprotein
  • Proteomics identification
  • Reference proteome
  • Repeat
  • Transferase
modified [InstanceEdit:9983091] Weiser, Joel, 2026-02-20
moleculeType Protein
name
  • GFPT1
otherIdentifier
  • 11720221_at
  • 11720222_at
  • 11720223_at
  • 11757975_s_at
  • 11758456_s_at
  • 16898578
  • 202721_PM_s_at
  • 202721_s_at
  • 202722_PM_s_at
  • 202722_s_at
  • 226886_PM_at
  • 226886_at
  • 227027_PM_at
  • 227027_at
  • 2558063
  • 2558064
  • 2558065
  • 2558066
  • 2558067
  • 2558068
  • 2558069
  • 2558070
  • 2558071
  • 2558072
  • 2558073
  • 2558074
  • 2558075
  • 2558077
  • 2558078
  • 2558082
  • 2558085
  • 2558086
  • 2558087
  • 2558088
  • 2558089
  • 2558092
  • 2558094
  • 2558095
  • 2558097
  • 2558099
  • 2558100
  • 2558102
  • 2558106
  • 2558109
  • 2558110
  • 2673
  • 32626_at
  • 3284171
  • 61346_at
  • 8052762
  • 90240_at
  • A_23_P345887
  • A_23_P44083
  • A_33_P3243153
  • GE54887
  • GE58132
  • GO:0004360
  • GO:0005515
  • GO:0005829
  • GO:0006002
  • GO:0006047
  • GO:0006048
  • GO:0006112
  • GO:0006486
  • GO:0006487
  • GO:0008483
  • GO:0016740
  • GO:0032922
  • GO:0048511
  • GO:0055086
  • GO:0070062
  • GO:0097367
  • GO:1901135
  • GO:1901137
  • HMNXSV003038583
  • Hs.13396.0.A1_3p_at
  • Hs.1674.0.S1_3p_a_at
  • Hs.24723.0.A1_3p_at
  • ILMN_2220184
  • ILMN_2220187
  • M90516_at
  • PH_hs_0000227
  • PH_hs_0039878
  • TC02001948.hg
  • g4503980_3p_a_at
physicalEntity
referenceDatabase [ReferenceDatabase:2] UniProt
referenceGene
referenceTranscript
schemaClass ReferenceGeneProduct
secondaryIdentifier
  • GFPT1_HUMAN
  • Q53QE6
  • Q9BXF8
sequenceLength 699
species [Species:48887] Homo sapiens
stId uniprot:Q06210
url http://purl.uniprot.org/uniprot/Q06210
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