Protein kinase that is part of growth control pathway which is at least partially redundant with the cAMP pathway (By similarity). Plays a role in filamentous growth and virulence. Prevents hypha formation specifically under hypoxia at high CO(2) levels. Required for chlamydospore formation, distinctive morphological feature of the fungal pathogen C.albicans that can be induced to form in oxygen-limited environments and has been reported in clinical specimens. ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-[protein] ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-threonyl-[protein] Leads to reduced cell size and to sensitivity to rapamycin, caffeine and sodium dodecyl sulfate. Attenuates the virulence of in a mouse model of systemic candidiasis. Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. cAMP subfamily.