1NON | D:3-135; D:3-135; D:3-135; D:3-135 | PYRR, THE REGULATOR OF THE PYRIMIDINE BIOSYNTHETIC OPERON IN BACILLUS CALDOLYTICUS |
1XZ8 | B:3-135; B:3-135 | PYRR, THE REGULATOR OF THE PYRIMIDINE BIOSYNTHETIC OPERON IN BACILLUS CALDOLYTICUS, NUCLEOTIDE-BOUND FORM |
1XZN | B:3-135; B:3-135 | PYRR, THE REGULATOR OF THE PYRIMIDINE BIOSYNTHETIC OPERON IN BACILLUS CALDOLYTICUS, SULFATE-BOUND FORM |