UniProt:Q2KNB4 HXK3

chain
  • chain:1-500
checksum 0179231A6AC47A2C
comment
  • FUNCTION Fructose and glucose phosphorylating enzyme (PubMed:16552590). Involved in the regulation of cell expansion in spikelet hulls, grain size, and gibberellin biosynthesis and homeostasis (PubMed:35941236).CATALYTIC ACTIVITY a D-hexose + ATP = a D-hexose 6-phosphate + ADP + H(+)CATALYTIC ACTIVITY D-fructose + ATP = D-fructose 6-phosphate + ADP + H(+)CATALYTIC ACTIVITY D-glucose + ATP = D-glucose 6-phosphate + ADP + H(+)PATHWAY Carbohydrate metabolism; hexose metabolism.PATHWAY Carbohydrate degradation; glycolysis; D-glyceraldehyde 3-phosphate and glycerone phosphate from D-glucose: step 1/4.SUBCELLULAR LOCATION Expressed in roots, leaves, flowers, immature seeds and seed coat (PubMed:16552590). Expressed in young shoots, tiller buds, endosperm seven days after fertilization, and interconnecting tissues such as pulvini and nodes (PubMed:35941236).DEVELOPMENTAL STAGE Expressed during flower development until 8 days after flowering.INDUCTION Not induced by glucose or fructose treatment in leaves.DISRUPTION PHENOTYPE Decreased grain length, grain width, and grain filling (PubMed:35941236). Delayed seed germination and retarded seedling growth (PubMed:35941236).SIMILARITY Belongs to the hexokinase family.
created [InstanceEdit:1164949] Wu, Guanming, 2010-12-11
crossReference
databaseName UniProt
dbId 1157840
description
  • recommendedName: fullName evidence="6"Hexokinase-3 ecNumber evidence="9"2.7.1.1 alternativeName: Hexokinase-8 alternativeName: fullName evidence="7"Protein SHORT AND NARROW GRAIN 1
displayName UniProt:Q2KNB4 HXK3
geneName
  • HXK3
  • HXK8
  • SNG1
  • Os01g0940100
  • LOC_Os01g71320
  • B1150F11.26-1
identifier Q2KNB4
isSequenceChanged false
keyword
  • ATP-binding
  • Glycolysis
  • Kinase
  • Membrane
  • Mitochondrion
  • Mitochondrion outer membrane
  • Nucleotide-binding
  • Reference proteome
  • Transferase
  • Transmembrane
  • Transmembrane helix
modified [InstanceEdit:9939033] Weiser, Joel, 2025-02-21
name
  • HXK3
referenceDatabase [ReferenceDatabase:2] UniProt
schemaClass ReferenceGeneProduct
secondaryIdentifier
  • HXK3_ORYSJ
  • Q5JLP7
sequenceLength 500
species [Species:1250427] Oryza sativa subsp. japonica
url http://purl.uniprot.org/uniprot/Q2KNB4