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Fibroin light chain (L-fibroin) This family consists of several moth fibroin light chain (L-fibroin) proteins. Fibroin of the silkworm, Bombyx mori, is secreted into the lumen of posterior silk gland (PSG) from the surrounding PSG cells as a molecular complex consisting of a heavy (H)-chain of approximately 350 kDa, a light (L)-chain of 25 kDa and a P25 of about 27 kDa. The H- and L-chains are disulfide-linked but P25 is associated with the H-L complex by non-covalent force. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",