| 1A3C | A:3-180 | PYRR, THE BACILLUS SUBTILIS PYRIMIDINE BIOSYNTHETIC OPERON REPRESSOR, DIMERIC FORM |
| 1A4X | A:4-180; B:4-180 | PYRR, THE BACILLUS SUBTILIS PYRIMIDINE BIOSYNTHETIC OPERON REPRESSOR, HEXAMERIC FORM |
| 1AO0 | A:260-305,A:328-379,A:391-424; B:260-305,B:328-379,B:391-424; C:260-305,C:328-379,C:391-424; D:260-305,D:328-379,D:391-424 | GLUTAMINE PHOSPHORIBOSYLPYROPHOSPHATE (PRPP) AMIDOTRANSFERASE FROM B. SUBTILIS COMPLEXED WITH ADP AND GMP |
| 1IBS | A:8-151,A:293-313; B:8-151,B:293-313; A:152-292; B:152-292 | PHOSPHORIBOSYLDIPHOSPHATE SYNTHETASE IN COMPLEX WITH CADMIUM IONS |
| 1O57 | B:74-274; C:74-274; A:74-276; D:74-276 | CRYSTAL STRUCTURE OF THE PURINE OPERON REPRESSOR OF BACILLUS SUBTILIS |
| 1P4A | B:74-273; D:74-273; A:74-276; C:74-273 | CRYSTAL STRUCTURE OF THE PURR COMPLEXED WITH CPRPP |
| 1Y0B | C:-2-189; A:-1-191; D:-2-191; B:3-188 | CRYSTAL STRUCTURE OF XANTHINE PHOSPHORIBOSYLTRANSFERASE FROM BACILLUS SUBTILIS. |
| 2FXV | A:1-190; B:1-190 | BACILLUS SUBTILIS XANTHINE PHOSPHORIBOSYLTRANSFERASE IN COMPLEX WITH GUANOSINE 5'-MONOPHOSPHATE (GMP) |
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