C. elegans MTCH2/ mtch-1 is expressed in the posterior region of the intestine (the main organ for lipid storage in C. elegans), the muscle, and a few selected neurons.
IgGs directed against CKA1/CKA1S complexed both adapter protein isoforms in samples of total C. elegans proteins. CKA1 and CKA1S are expressed in vivo at each stage of C. elegans development.