title: Rat hypothalamic growth hormone-releasing factor: isolation, sequence analysis and total synthesis.
abstract: Growth hormone-releasing factor (GRF) was isolated from acid extracts of approximately 35,000 rat hypothalami by means of immunoaffinity chromatography, gel filtration and two steps of reverse-phase HPLC. Amino acid analysis, gas-liquid phases sequencing and peptide mapping established that rat GRF is a 43 amino acid peptide with the amino acid sequence His-Ala-Asp-Ala-Ile-Phe-Thr-Ser-Ser-Tyr-Arg-Arg-Ile-Leu-Gly- Gln-Leu-Tyr-Ala-Arg-Lys-Leu-Leu-His-Glu-Ile-Met-Asn-Arg-Gln-Gln-Gly- Glu-Arg-Asn-Gln-Glu-Gln-Arg-Ser-Arg-Phe-Asn-OH, confirming the primary structure reported earlier (Spiess et al Nature 303, 532 (1983).
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002846:Chromatography, Affinity; D002850:Chromatography, Gel; D002851:Chromatography, High Pressure Liquid; D013007:Growth Hormone-Releasing Hormone / Q000302:isolation & purification*; D007031:Hypothalamus / Q000032:analysis*; D008297:Male; D051381:Rats
chemical_list: D013007:Growth Hormone-Releasing Hormone