Fibroin light chain (IPR008660)

Short name: L-fibroin

Overlapping homologous superfamilies


Family relationships



This family consists of several moth fibroin light chain (L-fibroin) proteins. Fibroin of 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 disulphide-linked but P25 is associated with the H-L complex by non-covalent force [PMID: 10366732].

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

No terms assigned in this category.

Cellular Component

GO:0005576 extracellular region

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.