| 1PIM | A:1-340; B:1-340 | DITHIONITE REDUCED E. COLI RIBONUCLEOTIDE REDUCTASE R2 SUBUNIT, D84E MUTANT |
| 1PIU | A:1-340; B:1-340 | OXIDIZED RIBONUCLEOTIDE REDUCTASE R2-D84E MUTANT CONTAINING OXO-BRIDGED DIFERRIC CLUSTER |
| 1PIY | A:1-340; B:1-340 | RIBONUCLEOTIDE REDUCTASE R2 SOAKED WITH FERROUS ION AT NEUTRAL PH |
| 1PIZ | A:1-340; B:1-340 | RIBONUCLEOTIDE REDUCTASE R2 D84E MUTANT SOAKED WITH FERROUS IONS AT NEUTRAL PH |
| 1PJ0 | A:1-340; B:1-340 | RIBONUCLEOTIDE REDUCTASE R2-D84E/W48F MUTANT SOAKED WITH FERROUS IONS AT NEUTRAL PH |
| 1PJ1 | A:1-340; B:1-340 | RIBONUCLEOTIDE REDUCTASE R2-D84E/W48F SOAKED WITH FERROUS IONS AT PH 5 |
| 1PM2 | A:1-339; B:1-339 | CRYSTAL STRUCTURE OF MANGANESE SUBSTITUTED R2-D84E (D84E MUTANT OF THE R2 SUBUNIT OF E. COLI RIBONUCLEOTIDE REDUCTASE) |
| 1R65 | A:1-340; B:1-340 | CRYSTAL STRUCTURE OF FERROUS SOAKED RIBONUCLEOTIDE REDUCTASE R2 SUBUNIT (WILDTYPE) AT PH 5 FROM E. COLI |
| 1YFD | B:1-341; A:1-340 | CRYSTAL STRUCTURE OF THE Y122H MUTANT OF RIBONUCLEOTIDE REDUCTASE R2 PROTEIN FROM E. COLI |
| 2ALX | A:1-339 | RIBONUCLEOTIDE REDUCTASE R2 FROM ESCHERICHIA COLI IN SPACE GROUP P6(1)22 |
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