| The leader transcript contains an open reading frame which encodes a polypeptide of 44 amino acids. |
| The first separation is achieved by isoelectric focusing that separates protein polypeptide chains according to amino acid composition. |
| One such intervention involves the intravenous injection of secretin, a gastrointestinal polypeptide. |
| Protein synthesis inhibitors can rapidly block translation elongation and cause release of truncated polypeptide chains. |
| Vertebrate hemoglobins are tetrameric molecules comprised of two distinct polypeptide chains. |
| There was no tumoral expression for serotonin, glucagon, insulin, gastrin, vasointestinal peptide, or pancreatic polypeptide. |
