Evidence that phosphorylation of threonine in the GT motif triggers activation of PknA, a eukaryotic-type serine/threonine kinase from Mycobacterium tuberculosis.
Ravala, S.K., Singh, S., Yadav, G.S., Kumar, S., Karthikeyan, S., Chakraborti, P.K.(2015) FEBS J 282: 1419-1431
- PubMed: 25665034 
- DOI: 10.1111/febs.13230
- Primary Citation of Related Structures:  
4OW8 - PubMed Abstract: 
Phosphorylation of the activation loop in the catalytic domain of the RD family of bacterial eukaryotic-type Ser/Thr protein kinases (STPK) induces their conformational transition from an inactive to active state. However, mechanistic insights into the phosphorylation-mediated transition of these STPKs from an inactive to active state remain unknown ...