4e1t is a 1 chain structure with sequence from Yersinia pseudotuberculosis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
INVA_YERPS Invasin is a protein that allows enteric bacteria to penetrate cultured mammalian cells. The entry of invasin in the cell is mediated by binding several beta-1 chain integrins.