LAMB2 and posterior cortical atrophy: Another study found that the tyrosine-isoleucine-glycine-serine-N-arginine (YIGSR) peptide of laminin, which corresponds to the 929–933 sequence of the beta1 chain, can inhibit PCa cell proliferation and invasion by competitively binding to the polyphenol (-)epigallocatechin-3-gallate (ECCG)-binding sites.