Polymyxin B1 is a cationic lipopeptide that exhibits strong affinity for lipid bilayers through hydrophobic-electrostatic complementarity. Its cyclic and linear domains generate a rigid yet amphipathic scaffold. Researchers study its membrane-disruption mechanisms and binding thermodynamics. Applications include antimicrobial-peptide modeling, lipid-interaction studies, and sequence-activity profiling.
CAT No: R2569
CAS No:4135-11-9
Synonyms/Alias:4135-11-9;UNII-B35S89JSRU;B35S89JSRU;(6S)-N-[(2S)-4-amino-1-[[(2S,3R)-1-[[(2S)-4-amino-1-oxo-1-[[(3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-15-benzyl-3-[(1R)-1-hydroxyethyl]-12-(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptazacyclotricos-21-yl]amino]butan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-1-oxobutan-2-yl]-6-methyloctanamide;CHEMBL2397513;BRN 0505906;L-THREONINE, N2-(6-METHYL-1-OXOOCTYL)-L-2,4-DIAMINOBUTANOYL-L-THREONYL-L-2,4-DIAMINOBUTANOYL-L-2,4-DIAMINOBUTANOYL-L-2,4-DIAMINOBUTANOYL-D-PHENYLALANYL-L-LEUCYL-L-2,4-DIAMINOBUTANOYL-L-2,4-DIAMINOBUTANOYL-, CYCLIC (10->4)-PEPTIDE;N2-(6-METHYL-1-OXOOCTYL)-L-2,4-DIAMINOBUTANOYL-L-THREONYL-L-2,4-DIAMINOBUTANOYL-L-2,4-DIAMINOBUTANOYL-L-2,4-DIAMINOBUTANOYL-D-PHENYLALANYL-L-LEUCYL-L-2,4-DIAMINOBUTANOYL-L-2,4-DIAMINOBUTANOYL-L-THREONINE CYCLIC (10->4)-PEPTIDE;CHEBI:8309;DTXSID80858844;DTXCID1028441;SCHEMBL14241069;HY-A0248A;BDBM50548037;MS-32043;CS-0019929;(S)-N-((S)-4-amino-1-(((2S,3R)-1-(((S)-4-amino-1-oxo-1-(((3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-15-benzyl-3-((R)-1-hydroxyethyl)-12-isobutyl-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptaazacyclotricosan-21-yl)amino)butan-2-yl)amino;
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