- Function
- Protein kinase that regulates many aspects of mycobacterial physiology, and is critical for growth in vitro and survival of the pathogen in the host (PubMed:25713147). Is a key component of a signal transduction pathway that regulates cell growth, cell shape and cell division via phosphorylation of target proteins such as FtsZ, Wag31, GlmU, FhaB, PstP, EmbR and Rv1422 (PubMed:15985609, PubMed:16817899, PubMed:19121323, PubMed:20066037, PubMed:21190553, PubMed:21423706). Also catalyzes the phosphorylation of the proteasome alpha-subunit (PrcA) and unprocessed proteasome beta-subunit (pre-PrcB), which results in the inhibition of processing of pre-PrcB and assembly of the proteasome complex, and thereby enhances the mycobacterial resistance to H(2)O(2); PknA thus plays an important role in the oxidative stress response by impeding the formation of holo-proteasome in M.tuberculosis under H(2)O(2) stress (PubMed:25224505). Shows a strong preference for Thr versus Ser as the phosphoacceptor.
| Site |
Maximum Consensus Site Population |
Minimum Consensus Site Population |
Median Consensus Site Population |
| DRS |
20 |
10 |
15.0 |
| EDI |
16 |
16 |
16.0 |
| MT3 |
14 |
8 |
12.0 |
| PDIG |
6 |
6 |
6.0 |
| ATP |
10 |
10 |
10.0 |
| PDB ID |
Maximum Consensus Site Population |
| MPP site |
DFG site |
PIF site |
DRS site |
DEF site |
EDI site |
MT3 site |
AAS site |
LBP site |
CMP site |
PDIG site |
ATP site |
PMP site |
| Total Druggable Structures per Site |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
4X3F
|
0 |
0 |
0 |
20 |
0 |
16 |
14 |
0 |
0 |
0 |
6 |
10 |
0 |