?
Glutaredoxin (GRX) family, SH3BGR (SH3 domain binding glutamic acid-rich protein) subfamily; a recently-identified subfamily composed of SH3BGR and similar proteins possessing significant sequence similarity to GRX, but without a redox active CXXC motif. The SH3BGR gene was cloned in an effort to identify genes mapping to chromosome 21, which could be involved in the pathogenesis of congenital heart disease affecting Down syndrome newborns. Several human SH3BGR-like (SH3BGRL) genes have been identified since, mapping to different locations in the chromosome. Of these, SH3BGRL3 was identified as a tumor necrosis factor (TNF) alpha inhibitory protein and was also named TIP-B1. Upregulation of expression of SH3BGRL3 is associated with differentiation. It has been suggested that it functions as a regulator of differentiation-related signal transduction pathways.
|