Acts on GalNAc. Also acts as a galactokinase when galactose is present at high concentrations. May be involved in a salvage pathway for the reutilization of free GalNAc derived from the degradation of complex carbohydrates. Belongs to the GHMP kinase family. GalK subfamily. 2 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Kinase, other; EC 18.104.22.168; Carbohydrate Metabolism - galactose; Carbohydrate Metabolism - amino sugar and nucleotide sugar
Cellular Component: cytoplasm
Molecular Function: galactokinase activity; N-acetylgalactosamine kinase activity; ATP binding
Biological Process: carbohydrate phosphorylation; carbohydrate metabolic process; galactose metabolic process
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.