Formation of the COOH‐terminal amide group of thyrotropin‐releasing‐factor

Authors:
  • IHIntisar Husain
    Intisar Husain
  • STSuresh S. Tate
    Suresh S. Tate

Abstract
The precursors of peptide hormones that possess a COOH‐terminal α‐amide group contain a glycine residue following the amino acid which is amidated in the hormone. 〈Glu—His—Pro—Gly was synthesized as a putative precursor of thyroliberin. Bovine pituitary neurosecretory granules were shown to contain an amide group‐forming activity associated with an M r of about 62000 protein(s) which converts the tetrapeptide to thyroliberin.

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