| 1K6I | A: | CRYSTAL STRUCTURE OF NMRA, A NEGATIVE TRANSCRIPTIONAL REGULATOR (TRIGONAL FORM) |
| 1K6J | A:; B: | CRYSTAL STRUCTURE OF NMRA, A NEGATIVE TRANSCRIPTIONAL REGULATOR (MONOCLINIC FORM) |
| 1K6X | A: | CRYSTAL STRUCTURE OF NMRA, A NEGATIVE TRANSCRIPTIONAL REGULATOR IN COMPLEX WITH NAD AT 1.5 A RESOLUTION (TRIGONAL FORM) |
| 1TI7 | A: | CRYSTAL STRUCTURE OF NMRA, A NEGATIVE TRANSCRIPTIONAL REGULATOR, IN COMPLEX WITH NADP AT 1.7A RESOLUTION |
| 1XGK | A: | CRYSTAL STRUCTURE OF N12G AND A18G MUTANT NMRA |