WKYMVM 2TFA is a N-formyl peptide receptor (FPR1) agonist.Neutrophils are activated by WKYMVM through FPRL1 and that FPRL2 is a chemotactic receptor transducing signals in myeloid cells.Using blood samples withdrawn from 28 AL patients and 31 healthy controls, found that, in the absence of exogenous WKYMVm, WKYMVm receptor and bactericidal activity did not differ between patients and controls.

Auxinole is a potent auxin antagonist of TIR1/AFB receptors, binding TIR1 to block the formation of the TIR1-IAA-Aux/IAA complex . It inhibits auxin-responsive gene expression.

[Sar1, Ile8]-Angiotensin II is a peptide that has multiple effects on vascular smooth muscle, including contraction of normal arteries and hypertrophy or hyperplasia of cultured cells or diseased vessels. The biological activities of angiotensin II antagonists upon basal and angiotensin II-stimulated aldosterone production were evaluated in an isolated canine glomerulosa cell preparation.