EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.1.3.53 | additional information | Gallus gallus | involved in force regulation in smooth muscle, the relative expression of splice-in/splice-out myosin-targeting subunit isoforms determines the magnitude of agonist-induced force enhancement/Ca2+ sensitization | ? | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
3.1.3.53 | Gallus gallus | - |
- |
- |
EC Number | Posttranslational Modification | Comment | Organism |
---|---|---|---|
3.1.3.53 | phosphoprotein | inhibition of enzyme activity by phosphorylation of its myosin-targeting subunit, only in adult gizzard, not in adult aortic smooth muscle, phosphorylation is not required for Ca2+ sensitization of force | Gallus gallus |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
3.1.3.53 | aorta | embryonic and adult, smooth muscle, throughout development, exclusive expression of the splice-in myosin-targeting subunit isoform | Gallus gallus | - |
3.1.3.53 | gizzard smooth muscle | embryonic and adult, early during development, expression of the splice-in myosin-targeting subunit isoform, then shift from the splice-in to the splice-out isoform, exclusive expression of the splice-out isoform in adult chicken | Gallus gallus | - |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.1.3.53 | additional information | involved in force regulation in smooth muscle, the relative expression of splice-in/splice-out myosin-targeting subunit isoforms determines the magnitude of agonist-induced force enhancement/Ca2+ sensitization | Gallus gallus | ? | - |
? | |
3.1.3.53 | myosin light-chain phosphate + H2O | 20 kDa myosin light chain | Gallus gallus | myosin light-chain + phosphate | - |
? |
EC Number | Subunits | Comment | Organism |
---|---|---|---|
3.1.3.53 | More | the myosin-targeting subunit MYPT has 2 isoforms produced by alternative splicing that differ by a central insert: 133 kDa splice-in and 130 kDa splice-out isoform, expression of the MYPT isoforms is both developmentally regulated and tissue-specific | Gallus gallus |