Title : Amino acid side chain conformation in angiotensin II and analogs: correlated results of circular dichroism and 1H nuclear magnetic resonance.

Pub. Date : 1980 Jan

PMID : 6928653






4 Functional Relationships(s)
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1 [1-Sarcosine,8-isoleucine]angiotensin II (Sar-Arg-Val-Tyr-Ile-His-Pro-Ile) has been shown to be a potent antagonist of the pressor action of angiotensin II. Histidine angiotensinogen Homo sapiens
2 [1-Sarcosine,8-isoleucine]angiotensin II (Sar-Arg-Val-Tyr-Ile-His-Pro-Ile) has been shown to be a potent antagonist of the pressor action of angiotensin II. Histidine angiotensinogen Homo sapiens
3 The results indicated that: (i) angiotensin II and [1-sarcosine,8-isoleucine]angiotensin II gave practically identical spectroscopic data; and (ii) N-methylation in either position 4 or position 5 resulted in remarkable changes in the peptide backbone and a severe limitation in rotational freedom of side chains in tyrosine, isoleucine, and histidine residues. Histidine angiotensinogen Homo sapiens
4 The results indicated that: (i) angiotensin II and [1-sarcosine,8-isoleucine]angiotensin II gave practically identical spectroscopic data; and (ii) N-methylation in either position 4 or position 5 resulted in remarkable changes in the peptide backbone and a severe limitation in rotational freedom of side chains in tyrosine, isoleucine, and histidine residues. Histidine angiotensinogen Homo sapiens