Neuropeptide Y: complete amino acid sequence of the brain peptide

Proc Natl Acad Sci U S A. 1982 Sep;79(18):5485-9. doi: 10.1073/pnas.79.18.5485.

Abstract

The amino acid sequence of neuropeptide Y, a 36-residue peptide recently isolated from porcine brain, has been determined by using high performance liquid chromatography for separation of its tryptic and chymotryptic fragments and subsequent sequence analysis of the isolated fragments by an improved dansyl Edman subtractive technique. The amino acid sequence of neuropeptide Y has been found to be: Tyr-Pro-Ser-Lys-Pro-Asp-Asn-Pro-Gly-Glu-Asp-Ala-Pro-Ala-Glu-Asp-Leu-Ala-Arg-Tyr -Tyr-Ser-Ala-Leu-Arg-His-Tyr-Ile-Asn-Leu-Ile-Thr-Arg-Gln-Arg-Tyr-NH2. Neuropeptide Y has a high degree of sequence homology with peptide YY (70%), the newly isolated porcine intestinal peptide, and pancreatic polypeptide (50%). It is therefore proposed that neuropeptide Y, peptide YY, and pancreatic polypeptide are members of a newly recognized peptide family.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Brain Chemistry
  • Chymotrypsin
  • Dansyl Compounds
  • Nerve Tissue Proteins*
  • Neuropeptide Y
  • Peptide Fragments / analysis
  • Swine
  • Trypsin

Substances

  • Dansyl Compounds
  • Nerve Tissue Proteins
  • Neuropeptide Y
  • Peptide Fragments
  • Chymotrypsin
  • Trypsin