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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Distinct roles of the Src family kinases, SRC-1 and KIN-22, that are negatively regulated by CSK-1 in C. elegans.

To elucidate the primitive roles of the Src family kinases (SFKs), here we characterized Caenorhabditis elegans orthologues of SFKs (src-1 and kin-22) and their regulator kinase Csk (csk-1). SRC-1 and KIN-22 possess the C-terminal regulatory tyrosines characteristic of SFKs, and their activities are negatively regulated by CSK-1 in a yeast expression system. The src-1 and csk-1 genes are co-expressed in some head neurons, the anchor cell and the tail region, while kin-22 and csk-1 genes are co-expressed in pharyngeal muscles and tail region. Expression of KIN-22 induced morphological defects in the pharynx, whereas expression of SRC-1 did not show any overt phenotype in adult. RNA interference of src-1, but not that of kin-22, caused a developmental arrest in early development. These results suggest that SRC-1 and KIN-22 play distinct roles under the control of CSK-1.[1]

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