SYMPK

This gene encodes a nuclear protein that functions in the regulation of polyadenylation and promotes gene expression. The protein forms a high-molecular weight complex with components of the polyadenylation machinery. It is thought to serve as a scaffold for recruiting regulatory factors to the polyadenylation complex. It also participates in 3'-end maturation of histone mRNAs, which do not undergo polyadenylation. The protein also localizes to the cytoplasmic plaques of tight junctions in some cell types. [provided by RefSeq]

symplekin

Scaffold protein that functions as a component of a multimolecular complex involved in histone mRNA 3'-end processing. Specific component of the tight junction (TJ) plaque, but might not be an exclusively junctional component. May have a house-keeping rule. Is involved in pre-mRNA polyadenylation. Enhances SSU72 phosphatase activity.

Biological Process cell adhesionIEA:UniProtKB-KW
Biological Process mRNA polyadenylationIMP:UniProtKB1 Publication
Biological Process negative regulation of protein bindingIMP:UniProtKB1 Publication
Biological Process positive regulation of protein dephosphorylationIDA:UniProtKB1 Publication

Cytoplasm, cytoskeleton
Cell junction, tight junction
Cell membrane
Cell junction
Nucleus, nucleoplasm
Cytoplasmic face of adhesion plaques (major) and nucleoplasm (minor) (in cells with TJ). Nucleoplasm (in cells without TJ). Nuclear bodies of heat-stressed cells. Colocalizes with HSF1 in nuclear stress bodies upon heat shock (PubMed:14707147).