Cecropin B is a natural antimicrobial peptide closely related to Cecropin A, initially isolated from the hemolymph of the giant silk moth, Hyalophora cecropia. Composed of approximately 39 amino acids, it shares a similar amphipathic α - helix structure. This structure enables Cecropin B to effectively target bacterial cell membranes. It binds to the negatively charged regions of the membrane and inserts itself, disrupting the membrane integrity and forming pores. As a result, essential intracellular components leak out, leading to bacterial cell death. Similar to Cecropin A, it exhibits broad - spectrum antibacterial activity against both Gram - positive and Gram - negative bacteria. In pharmacological research, Cecropin B is a valuable subject for studying membrane - active peptides and developing innovative antibacterial therapies, especially in the context of rising antibiotic resistance.

Chemical Formula: C176H302N52O41S1

Molecular Weight: 3834.76

Sequence: Lys-Trp-Lys-Val-Phe-Lys-Lys-Ile-Glu-Lys-Met-Gly-Arg-Asn-Ile-Arg-Asn-Gly-Ile-Val-Lys-Ala-Gly-Pro-Ala-Ile-Ala-Val-Leu-Gly-Glu-Ala-Lys-Ala-Leu-NH2

Purity: From crude to 98%

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