2BJ1 | A:1-50 | NIKR IN OPEN CONFORMATION AND NICKEL BOUND TO HIGH-AFFINITY SITES |
2BJ3 | A:1-50; B:2-50; C:1-50; D:2-50 | NIKR-APO |
2BJ7 | A:1-50; B:1-50 | NIKR IN CLOSED CONFORMATION AND NICKEL BOUND TO HIGH-AFFINITY SITES |
2BJ8 | A:1-50; B:1-50 | NIKR IN CLOSED CONFORMATION AND NICKEL BOUND TO HIGH AND LOW-AFFINITY SITES |