Discobahamin A is a bioactive peptide isolated from a new species of the Bahamian deep water marine sponge Discodermia. It is a growth of Candida albicans inhibitor.
Discobahamin B is a bioactive peptide isolated from a new species of the Bahamian deep water marine sponge Discodermia. It is a growth of Candida albicans inhibitor.
Link N peptide 是细胞外基质的蛋白聚糖聚集体 (proteoglycan aggregates) 的激活剂。它选择性激活 p38 丝裂原活化蛋白激酶 (MAPK) 通路,增强人椎间盘细胞中 I 型和 II 型胶原蛋白的产生。Link N peptide 有可能用于椎间盘退变类疾病的研究。
6-Prenylindole is a bacterial metabolite that has been found in Streptomyces and has antifungal and antimalarial properties.1 It is active against A. brassicicola strain TP-F0423 and F. oxysporum f. sp. tulipae TU-4-2 (15 and 30 μg disc in the paper disc assay), and also drug-resistant P. falciparum strain K1 (IC50 = 21 μg ml).2 |1. Sasaki, T., Igarashi, Y., Ogawa, M., et al. Identification of 6-prenylindole as an antifungal metabolite of Streptomyces sp. TP-A0595 and synthesis and bioactivity of 6-substituted indoles. J. Antibiot. (Tokyo) 55(11), 1009-1012 (2002).|2. Nkunya, M.H., Makangara, J.J., and Jonker, S.A. Prenylindoles from Tanzanian Monodora and Isolona species. Nat. Prod. Res. 18(3), 253-258 (2004).
Myxochelin A is a microbial metabolite that has been found inA. disciformisand has diverse biological activities.1It is active against Gram-positive bacteria, includingB. cereus,S. aureus, andM. luteus, but not Gram-negative bacteria or fungi in an agar diffusion assay when used at a concentration of 80 μg disc. Myxochelin A inhibits 5-lipoxygenase (5-LO) activity with an IC50value of 1.9 μM for the recombinant human enzyme.2It is cytotoxic to 26-L5 colon cancer cells when used at a concentration of 3 μg ml.3
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)
17-hydroxy Venturicidin A is a macrolide fungal metabolite originally isolated from Streptomyces. It has antibiotic activity against M. luteus, B. subtilis, and S. aureus and antifungal activity against V. dahlia, Fusarium, and C. tropicalis in a disc assay.
Linearmycin A is a polyene antibiotic that has been found inStreptomyces.1It is active against the bacteriaS. aureusandE. coli(MICs = 3.1 and 1.6 μg disc, respectively), the fungiS. cerevisiaeandC. albicans(MICs = 0.1 and 1.6 μg disc, respectively), and the plant pathogenic fungusA. nigerin disc assays (MIC = 0.2 μg disc). Linearmycin A induces lysis and degradation ofB. subtilisas a component ofStreptomycesMg1 extract.2 1.Sakuda, S., Guce-Bigol, U., Itoh, M., et al.Novel linear polyene antibiotics: LinearmycinsJ. Chem. Soc., Perkin Trans. 1182315-2319(1996) 2.Stubbendieck, R.M., and Straight, P.D.Escape from lethal bacterial competition through coupled activation of antibiotic resistance and a mobilized subpopulationPLoS Genet.11(12)e1005722(2015)
Urdamycin A is a bacterial metabolite originally isolated fromS. fradiaethat has antibacterial and anticancer activities.1,2It is active against a variety of Gram-positive and Gram-negative bacteria, includingB. subtilisand strains ofArthrobacterandStreptomyces, but not the fungusS. cerevisiae, in a disc assay when used at a concentration of 1 mg ml.2Urdamycin A is cytotoxic to L1210 and HT-29, but not A549, cancer cells (IC50s = 7.5, 5, and >10 μg ml, respectively).1