| Metal site id | Bound amino acids | Bound ligands IDs |
|---|---|---|
| 3ZK1-NA-1 | E2S1V1 | GLU A.32 GLU A.65 HOH A.2007 SER K.66 VAL K.63 |
| 3ZK1-NA-2 | E2S1V1 | GLU B.32 GLU B.65 HOH A.2013 SER A.66 VAL A.63 |
| 3ZK1-NA-3 | E2S1V1 | GLU C.32 GLU C.65 HOH B.2011 SER B.66 VAL B.63 |
| 3ZK1-NA-4 | E2S1V1 | GLU D.32 GLU D.65 HOH C.2008 SER C.66 VAL C.63 |
| 3ZK1-NA-5 | E2S1V1 | GLU E.32 GLU E.65 HOH D.2009 SER D.66 VAL D.63 |
| 3ZK1-NA-6 | E2S1V1 | GLU F.32 GLU F.65 HOH E.2007 SER E.66 VAL E.63 |
| 3ZK1-NA-7 | E2S1V1 | GLU G.32 GLU G.65 HOH F.2012 SER F.66 VAL F.63 |
| 3ZK1-NA-8 | E2S1V1 | GLU H.32 GLU H.65 HOH G.2008 SER G.66 VAL G.63 |
| 3ZK1-NA-9 | E2S1V1 | GLU I.32 GLU I.65 HOH H.2005 SER H.66 VAL H.63 |
| 3ZK1-NA-10 | E2S1V1 | GLU J.32 GLU J.65 HOH I.2008 SER I.66 VAL I.63 |
| 3ZK1-NA-11 | E2S1V1 | GLU K.32 GLU K.65 HOH J.2008 SER J.66 VAL J.63 |