125I-Angiotensin 1-7 binds to a different site than angiotensin 1-7 in tissue membrane preparations.
Filipe F Stoyell-ContiSarin IttyChristy AbrahamKatya RigattoCrystal A WestRobert C SpethPublished in: Endocrine (2021)
The addition of an iodine molecule to the tyrosine in position 4 of Ang 1-7 drastically changes the binding characteristics of this peptide making it unsuitable for characterization of Ang 1-7 receptors.