TABLE 4.
Protein kinase A activity using human CTP synthetase 1 synthetic peptides
| Peptidea | Sequenceb | Protein kinase A activity |
|---|---|---|
| nmol/min/mg | ||
| T83 | LDIRLTKDNN | NAc |
| S219 | VVCRCSNPLD | 0.57 ± 0.1 |
| T378 | FGVRGTEGKI | 0.45 ± 0.2 |
| T455 | LGKRRTLFQT | 107.1 ± 20 |
| A455 | LGKRRALFQT | NA |
| S552 | SVGRLSHYLQ | 27 ± 1 |
| A552 | SVGRLAHYLQ | NA |
| S562 | QKGCRLSPRD | NA |
| T566 | PRDTYSDRSG | 0.11 ± 0.1 |
| S573 | YSDRSGSSSP | NA |
Protein kinase A activity measured with 0.5 mM peptide.
Putative phosphorylation site is underlined
No activity.