PITP alpha, or Phosphatidylinositol transfer protein alpha, is a human gene encoded by PITPNA. It may also be known as: Phosphatidylinositol transfer protein alpha isoform; PI-TP-alpha; PtdIns transfer protein alpha; PtdInsTP alpha; HEL-S-36; PI-TPalpha; PITPN; VIB1A; phosphatidylinositol transfer protein, alpha. The encoded protein has an amino acid length of 270 and a mass of 31.8 kDa. PITP alpha is a member of the PtdIns transfer protein family, PI transfer class I subfamily. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog.