Implicating SCF complexes in organogenesis in Caenorhabditis elegans.

ABSTRACT: Development of the Caenorhabditis elegans foregut (pharynx) is regulated by a network of proteins that includes the Retinoblastoma protein (pRb) ortholog LIN-35; the ubiquitin pathway components UBC-18 and ARI-1; and PHA-1, a cytoplasmic protein. Loss of pha-1 activity impairs pharyngeal development and body morphogenesis, leading to embryonic arrest. We have used a genetic suppressor approach to dissect this complex pathway. The lethality of pha-1 mutants is suppressed by loss-of-function mutations in sup-35/ztf-21 and sup-37/ztf-12, which encode Zn-finger proteins, and by mutations in sup-36. Here we show that sup-36 encodes a divergent Skp1 family member that binds to several F-box proteins and the microtubule-associated protein PLT-1/τ. Like SUP-35, SUP-36 levels were negatively regula

SUBMITTER: Polley SR 

PROVIDER: S-EPMC3872186 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature