CRYSTAL STRUCTURE OF SIDEROCALIN (NGAL, LIPOCALIN 2) K125A MUTANT COMPLEXED WITH FERRIC ENTEROBACTIN ANTIMICROBIAL PROTEIN, LIPOCALIN, SIDEROCALIN, ENTEROBACTIN, SIDEROPHORE, IRON, GLYCOPROTEIN, PYRROLIDONE CARBOXYLIC ACID, SECRETED 3CMP