金山科研平台，产品价格货期咨询微信：jinshanbio Molecule Information: Parvalbumin alpha Aliases: PVALB Entrez Gene IDs: 5816 (Human); 19293 (Mouse); 25269 (Rat) Background: Parvalbumin alpha View Parvalbumin alpha IHC images. Parvalbumin alpha is a 12 kDa member of the parvalbumin family of Ca²⁺-binding proteins. In human, it is expressed in intrafusal muscle fibers, plus GABAergic interneurons and cerebellar Purkinje and basket cells. It presumably acts as a Ca²⁺ buffer that shortens the duration of fiber contraction. Human Parvalbumin is 110 amino acids (aa) in length. It contains two EF-hand domains (aa 39 - 74 and 78 - 110) that bind calcium. There are three potential isoform variants. One shows an alternate start site at Met33, a second shows a six aa substitution for the C-terminal nine amino acids and a third shows a deletion of Gly99 - Val100. Human Parvalbumin alpha is 51% aa identical to human Parvalbumin beta and is 87% plus 92% aa identical to mouse and rat Parvalbumin, respectively.