Defranco 3.1 - Immunity Vocab

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antimicrobial peptides

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peptide antibiotics that provide defense against microbes and viruses by interacting with membranes of infectious agents and increasing their permeability. Human Antimicrobial peptides are members of either the α-defensin, β-defensin or cathelicidin families

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cathelicidins

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Family of cationic antimicrobial peptides.

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defensins

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Any of a family of cationic antimicrobial peptides of vertebrates with three disulfide bonds and a largely beta-sheet structure. Humans have α and β-defensins; some other mammals also have circular θ defensins. Cationic, cysteine-rich antimicrobial peptide molecules also called defensins are found in insects and plants, although it is not known whether they are derived from a common ancestral gene.

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Paneth cell

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Specialized cell type of the epithelial layer of the small intestines. Paneth cells are localized to the base of the crypts of the intestines and secrete antimicrobial peptides.