Serine/threonine-protein kinase which may play a role in body wall muscle contraction. May phosphorylate unc-22/twitchin. ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-[protein] ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-threonyl-[protein] May interact (via protein kinase domain) with unc-22 (via protein kinase and CRD domains). Localizes between and around dense bodies. Colocalizes with myosin heavy chain unc-54 at the outer edge of A-bands. Expressed in body wall muscles (at protein level). Expressed in intestine. Autophosphorylated in vitro. Slight reduction in motility. Partially resistant to nicotine-induced paralysis; resistance is further increased in a mak-2 gk1110 mutant background. Normal localization of several components of the sarcomere including unc-52, unc-112, unc-95, atn-1,unc-89 and myo-3. Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family.