Galactose-6-phosphate isomerase

In enzymology, a galactose-6-phosphate isomerase (EC 5.3.1.26) is an enzyme that catalyzes the chemical reaction

D-galactose 6-phosphate ${\displaystyle \rightleftharpoons }$ D-tagatose 6-phosphate

galactose-6-phosphate isomerase
Identifiers
EC no.	5.3.1.26
CAS no.	39433-98-2
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / QuickGO
Search PMC articles PubMed articles NCBI proteins

Hence, this enzyme has one substrate, D-galactose 6-phosphate, and one product, D-tagatose 6-phosphate.

This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D-galactose-6-phosphate aldose-ketose-isomerase. This enzyme participates in galactose metabolism.