N-[(2S)-3-amino-2-({3-methyl-N-[(2E,4Z)-8-methyldeca-2,4-dienoyl]-L-alpha-aspartyl}amino)butanoyl]-D-valyl-L-lysyl-3-hydroxy-L-alpha-aspartyl-L-alpha-aspartylglycyl-3-methyl-D-alpha-aspartyl-L-valyl-(4R)-4-methyl-L-proline
Malacidin B is a homodetic cyclic peptide that is malacidin A in which the (2E,4Z)-8-methylnona-2,4-dienoyl group has been replaced by a (2E,4Z)-8-methyldeca-2,4-dienoyl group. It has a role as a bacterial metabolite, a member of calcium-dependent antibiotics and an antibacterial agent. It is a homodetic cyclic peptide and a lipopeptide.