| Gene Symbol | POMK |
|---|---|
| Entrez Gene | 84197 |
| Alt Symbol | MDDGA12, MDDGC12, SGK196 |
| Species | Human |
| Gene Type | protein-coding |
| Description | protein-O-mannose kinase |
| Other Description | Sugen kinase 196|probable inactive protein kinase-like protein SgK196|protein O-mannose kinase|protein kinase-like protein SgK196 |
| Swissprots | Q9H5K3 |
| Accessions | EAW63187 Q9H5K3 BC101548 AAI01549 BC113703 AAI13704 BQ365114 DA074115 DA330953 DA383787 DA818523 EH337134 XM_011544668 XP_011542970 XM_011544669 XP_011542971 NM_001277971 NP_001264900 NM_032237 NP_115613 |
| Function | Protein O-mannose kinase that specifically mediates phosphorylation at the 6-position of an O-mannose of the trisaccharide (N-acetylgalactosamine (GalNAc)-beta-1,3-N- acetylglucosamine (GlcNAc)-beta-1,4-mannose) to generate phosphorylated O-mannosyl trisaccharide (N-acetylgalactosamine- beta-1,3-N-acetylglucosamine-beta-1,4-(phosphate-6-)mannose). Phosphorylated O-mannosyl trisaccharide is a carbohydrate structure present in alpha-dystroglycan (DAG1), which is required for binding laminin G-like domain-containing extracellular proteins with high affinity. Only shows kinase activity when the GalNAc-beta-3-GlcNAc-beta-terminus is linked to the 4-position of O-mannose, suggesting that this disaccharide serves as the substrate recognition motif. {ECO:0000269|PubMed:23519211, ECO:0000269|PubMed:23929950}. |
| Subcellular Location | Endoplasmic reticulum membrane {ECO:0000305}; Single-pass type II membrane protein {ECO:0000305}. |
| Tissue Specificity | Highest expression is observed in brain, skeletal muscle, kidney and heart in fetal and adult tissues. {ECO:0000269|PubMed:24925318}. |