| Metal site id | Bound amino acids | Bound ligands IDs |
|---|---|---|
| 3ZK2-NA-1 | E2S1V1 | GLU L.32 GLU L.65 HOH L.2002 SER V.66 VAL V.63 |
| 3ZK2-NA-2 | E2S1V1 | GLU M.32 GLU M.65 HOH L.2004 SER L.66 VAL L.63 |
| 3ZK2-NA-3 | E2S1V1 | GLU N.32 GLU N.65 HOH M.2001 SER M.66 VAL M.63 |
| 3ZK2-NA-4 | E2S1V1 | GLU O.32 GLU O.65 HOH N.2001 SER N.66 VAL N.63 |
| 3ZK2-NA-5 | E2S1V1 | GLU P.32 GLU P.65 HOH O.2001 SER O.66 VAL O.63 |
| 3ZK2-NA-6 | E2S1V1 | GLU Q.32 GLU Q.65 HOH P.2003 SER P.66 VAL P.63 |
| 3ZK2-NA-7 | E2S1V1 | GLU R.32 GLU R.65 HOH Q.2002 SER Q.66 VAL Q.63 |
| 3ZK2-NA-8 | E2S1V1 | GLU S.32 GLU S.65 HOH R.2001 SER R.66 VAL R.63 |
| 3ZK2-NA-9 | E2S1V1 | GLU T.32 GLU T.65 HOH S.2002 SER S.66 VAL S.63 |
| 3ZK2-NA-10 | E2S1V1 | GLU U.32 GLU U.65 HOH T.2005 SER T.66 VAL T.63 |
| 3ZK2-NA-11 | E2S1V1 | GLU V.32 GLU V.65 HOH U.2005 SER U.66 VAL U.63 |