5-Valine-angiotensin I
5-Valine-angiotensin I is an Ang I peptide belonging to angiotensin I. 5-Valine-angiotensin I induces muscle contraction, can be used for renin-angiotensin system studies. Angiotensin I is a putative neurotransmitter, is the precursor of angiotensin II and of angiotensin fragment 1-7, which are involved in regulation of fluid volume and the release of aldosterone.