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L-protein, Peptococcus magnus MeSH Supplementary Concept Data 2025
a 62 residue alpha/beta protein with four stranded beta-sheet packed against a single alpha-helix; acts as a bacterial Ig superantigen to induce the synthesis and release of IL-4 and IL-13 from basophils by interacting with kappa L chains of the IgE isotype; partial amino acid sequence in first source;