Arrestin is one of the major proteins of the ros (retinal rod outer segments); it binds to photoactivated- phosphorylated rhodopsin, thereby apparently preventing the transducin-mediated activation of phosphodiesterase. Retina and pineal gland. Belongs to the arrestin family. Note: This description may include information from UniProtKB.
Protein type: G protein regulator, misc.; Motility/polarity/chemotaxis
Cellular Component: cytosol
Molecular Function: opsin binding; phosphoprotein binding; protein phosphatase inhibitor activity
Biological Process: rhodopsin mediated signaling; phototransduction, visible light; regulation of rhodopsin mediated signaling; cell surface receptor linked signal transduction; visual perception; negative regulation of catalytic activity
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.