Ancestral function of Inhibitors-of-kappaB regulates Caenorhabditis elegans development (ChIP-Seq)
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ABSTRACT: NF-κB-mediated signaling is maintained silent by the action of IκB proteins, whose canonical role is to sequester NF-κB in the cytoplasm. An alternative chromatin role for IκB members have been shown to affect stemness and cell differentiation but the involvement of NF-κB in this function has not been excluded. NFKI-1 and IKB-1 are IκB homologs in Caenorhabditis elegans, which lacks NF-κB nuclear effectors. nfki-1 and ikb-1 mutants present developmental defects that phenocopy mutations in Polycomb genes and demethylases as utx-1. suggesting a role for C. elegans IKB proteins in chromatin regulation, which is supported by various lines of evidence:(i) we detected NFKI-1 in the nucleus; (ii) NFKI-1 and IKB-1 bind to histones and Polycomb proteins, (iii) NFKI-1 and IKB-1 bind to chromatin in vivo, and (iv) mutations in nfki-1 and ikb-1 alter chromatin marks . Thus, ancestral IκB inhibitors may exert nuclear functions regulating of gene expression and development.
ORGANISM(S): Caenorhabditis elegans
PROVIDER: GSE146652 | GEO | 2020/09/01
REPOSITORIES: GEO
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