Litthauer D, Oelofsen W
Int J Pept Protein Res. 1987 Jun;29(6):739-45. doi: 10.1111/j.1399-3011.1987.tb02307.x.
Pancreatic polypeptide has been isolated from ostrich pancreas by gel filtration, ion exchange chromatography and high pressure liquid chromatography. The ostrich peptide contains 36 amino acids and has an amino acid composition similar to pancreatic polypeptide of other avian species. The primary structure of ostrich pancreatic polypeptide differs from that of the chicken peptide only at residues 3 and 18 where the ostrich peptide contains an alanine and a valine residue compared to the serine and isoleucine residues found in those positions in the chicken peptide.
通过凝胶过滤、离子交换色谱法和高压液相色谱法从鸵鸟胰腺中分离出了胰多肽。鸵鸟肽含有36个氨基酸，其氨基酸组成与其他鸟类的胰多肽相似。鸵鸟胰多肽的一级结构与鸡肽的一级结构仅在第3和18位残基处不同，在这两个位置，鸵鸟肽含有丙氨酸和缬氨酸残基，而鸡肽在这些位置的残基分别是丝氨酸和异亮氨酸。
