人 PPP4R4 (NM_020958) cDNA克隆

The protein encoded by this gene is a HEAT-like repeat-containing protein. The HEAT repeat is a tandemly repeated, 37-47 amino acid long module occurring in a number of cytoplasmic proteins. Arrays of HEAT repeats form a rod-like helical structure and appear to function as protein-protein interaction surfaces. The repeat-containing region of this protein has some similarity to the constant regulatory domain of the protein phosphatase 2A PR65/A subunit. The function of this particular gene product has not been determined. Alternative splicing has been observed for this gene and two transcript variants encoding distinct isoforms have been identified. [provided by RefSeq, Jul 2008]