HYDROLASE, PUTATIVE PEPTIDE:N-GLYCOSIDASE F (PNGASE F), STRUCTURAL GENOMICS, JOINT CENTER FOR STRUCTURAL GENOMICS, JCSG, PROTEIN STRUCTURE INITIATIVE, PSI-2 CRYSTAL STRUCTURE OF PUTATIVE PEPTIDE:N-GLYCOSIDASE F (PNGASE F) (YP_210507.1) FROM BACTEROIDES FRAGILIS NCTC 9343 AT 2.30 A RESOLUTION 3KS7