Corticotropin-releasing hormone (
CRH) also known as 
Corticotropin-releasing factor (
CRF) is a 
polypeptide hormone of 41 
amino acids that is produced by the 
hypothalamus and stimulates corticotropic cells of the anterior lobe of the pituitary to production of 
ACTH and other biologically active substances (for example β-endorphin).  CRH is also synthesized by the 
placenta and seems to determine the duration of 
pregnancy.
The sequence of amino acid residues was first determined by Shibahara in 1983.
Ser - Glu - Glu - Pro - Pro - Ile - Ser - Leu - Asp - Leu - Thr - Phe - His - Leu - Leu - Arg - Glu - Val - Leu - Glu - Met - Ala - Arg - Ala - Glu - Gln - Leu - Ala - Gln - Gln - Ala - His - Ser - Asn - Arg - Lys - Leu - Met - Glu - Ile - IleNH2
See also:
 
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