cIAP1 Ligand-Linker Conjugates 8 comprises an IAP ligand for the E3 ubiquitin ligase and a PROTAC linker. This compound is specifically utilized for the purpose of SNIPER design[1].
GS-462808 is a late sodium current inhibitor of the cardiac Nav1.5 channel. GS-462808 had lower brain penetration and serendipitously lower activity at the brain isoforms.
PXS-4681A is a powerful, specific, and irreversible inhibitor of semicarbazide-sensitive amine oxidase (SSAO; VAP-1), with an oral activity and a Ki value of 37 nM. It exhibits exceptional selectivity towards related amine oxidases, ion channels, and seven-transmembrane domain receptors. Additionally, PXS-4681A demonstrates potent anti-inflammatory properties.
Chaetomellic acid A is a potent inhibitor of farnesyltransferase in isolated enzyme assays (IC50=55nM) but is inactive in whole cells. Inhibition of farnesyltransferase is selective over geranylgeranyltransferase I and II (IC50=92µM and 34µM respectively).
Xanthoquinodin A1 is a fungal metabolite that has been found inHumicolaand has diverse biological activities.1,2It inhibitsE. tenellaschizont formation in BHK-21 cells with a minimum effective concentration (MEC) value of 0.02 μg/ml.1Xanthoquinodin A1 is active againstB. subtilis,M. luteus,S. aureus,A. laidlawii, andB. fragilisin a disc assay when used at a concentration of 1 mg/ml. It is also active againstB. cereus(MIC = 0.44 μM).2Xanthoquinodin A1 is cytotoxic to KB, MCF-7, and NCI H187 cancer cells.
1.Tabata, N., Suzumura, Y., Tomoda, H., et al.Xanthoquinodins, new anticoccidial agents produced by Humicola sp. Production, isolation and physico-chemical and biological propertiesJ. Antibiot. (Tokyo)46(5)749-755(1993) 2.Tantapakul, C., Promgool, T., Kanokmedhakul, K., et al.Bioactive xanthoquinodins and epipolythiodioxopiperazines from Chaetomium globosum 7s-1, an endophytic fungus isolated from Rhapis cochinchinensis (Lour.) MartNat. Prod. Res.34(4)494-502(2020)
Benastatin C is a polyketide synthase-derived benastatin that has been found inStreptomycesand has diverse biological activities.1,2It inhibits glutathione S-transferase (GST; IC50= 24 μg/ml for the rat liver enzyme).2Benastatin C also inhibits the esterase activity of isolated porcine pancreatic lipase (IC50= 10 μg/ml). It increases LPS- or concanavalin A-induced blastogenesis of isolated mouse spleen lymphocytes in a concentration-dependent manner.
1.Xu, Z., Schenk, A., and Hertweck, C.Molecular analysis of the benastatin biosynthetic pathway and genetic engineering of altered fatty acid-polyketide hybridsJ. Am. Chem. Soc.129(18)6022-6030(2007) 2.Aoyama, T., Kojima, F., Yamazaki, T., et al.Benastatins C and D, new inhibitors of glutathione S-transferase, produced by Streptomyces sp. MI384-DF12. Production, isolation, structure determination and biological activitiesJ. Antibiot. (Tokyo)46(5)712-718(1993)
(±)8-HEPE is produced by non-enzymatic oxidation of EPA. It contains equal amounts of 8(S)-HEPE and 8(R)-HEPE. The ability of (±)8-HEPE to induce hatching of E. modestus and B. balanoides eggs is probably due to the presence of the 8(R) isomer within the racemic mixture.[1][2]
Reference:[1]. Shing, T.K.M., Gibson, K.H., Wiley, J.R., et al. First total synthesis of a barnacle hatching factor 8(R)-hydroxy-eicosa-5(Z),9(E),11(Z)-pentaenoic acid. Tetrahedron Letters 35, 1067-1070 (1994).[2]. Hill, E.M., and Holland, D.L. Identification and egg hatching activity of monohydroxy fatty acid eicosanoids in the barnacle Balanus balanoides. Proceedings of the Royal Society of London Series B.Biological Sciences 247, 41-46 (1991).