A large, extracellular glycoprotein complex composed of three different polypeptide chains, alpha, beta and gamma. Provides an integral part of the structural scaffolding of basement membranes. [GOC:jl, http://www.sdbonline.org/fly/newgene/laminna1.htm, PMID:10842354]
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Collection
C5: Ontology GO: Gene Ontology GO:CC: GO Cellular Component