Cyclo(L-Leu-L-Trp) is a diketopiperazine metabolite initially derived from Penicillium, exhibiting antibacterial (MICs = 125-1000 µg/ml) and antifungal activities (MICs = 8-64 µg/ml). It also demonstrates antioxidant properties by reducing the production of hydroxy radicals, as evidenced in an electron spin resonance (ESR) spectroscopy assay (IC50 = 1.8 µM). Additionally, Cyclo(L-Leu-L-Trp) has been identified as a bitter compound capable of quickly crossing rat taste cell membranes ex vivo at a 1 mM concentration. Furthermore, it acts as a melatonin receptor agonist in X. laevis melanophores, suppressing cAMP accumulation at a 20 µM concentration, with this effect being negated by the melatonin receptor antagonist luzindole.
Glycoprotein B is a peptide with the sequence H2N-Ser-Ser-Ile-Glu-Phe-Ala-Arg-Leu-OH, MW= 922.04. glycoprotein B is a viral glycoprotein that is involved in the viral cell entry of Herpes simplex virus. The herpesvirus glycoprotein B is the most highly c
Adrenomedullin (AM) (1-12), human, is a peptide with the sequence Tyr-Arg-Gln-Ser-Met-Asn-Asn-Phe-Gln-Gly-Leu-Arg. Adrenomedullin (AM) (1-12), human, was initially identified as a vasodilator, and as such, it has the ability to relax vascular tone. Other
SCH-42354 is a potent, orally active inhibitor of neutral endopeptidase (NEP), serving as the active form of the prodrug SCH-42495. By inhibiting NEP hydrolysis, SCH-42354 enhances the activity of atrial natriuretic peptide (ANP) and prevents the hydrolysis of leu-enkephalin and ANF with IC50 values of 8.3 nM and 10.0 nM, respectively. Furthermore, SCH-42354 exhibits antihypertensive activity [1] [2].