| Metal site id | Bound amino acids | Bound ligands IDs |
|---|---|---|
| 4TOC-FE-1 | H2 | HIS A.155 HIS L.153 |
| 4TOC-FE-2 | D1E1 | ASP A.118 GLU H.125 HOH A.329 |
| 4TOC-FE-3 | H2 | HIS B.153 HIS D.155 |
| 4TOC-FE-4 | D1E1 | ASP C.118 GLU B.125 HOH B.309 |
| 4TOC-FE-5 | M2 | MET C.52 MET D.52 |
| 4TOC-FE-6 | D1E1 | ASP U.118 GLU E.125 HOH D.308 HOH D.367 HOH U.356 |
| 4TOC-FE-7 | M2 | ASP E.118 ASP E.122 HOH D.365 HOH E.364 |
| 4TOC-FE-8 | H2 | MET E.52 MET F.52 |
| 4TOC-FE-9 | D1E1 | HIS G.153 HIS I.155 |
| 4TOC-FE-10 | H2 | ASP G.118 ASP G.122 SO4 F.204 |
| 4TOC-FE-11 | H2 | ASP J.118 GLU G.125 HOH F.336 HOH J.390 |
| 4TOC-FE-12 | D1E1 | HIS B.155 HIS H.153 |
| 4TOC-FE-13 | D1E1 | HIS F.153 HIS H.155 |
| 4TOC-FE-14 | D1E1 | ASP P.118 GLU I.125 HOH I.359 HOH P.313 HOH P.396 |
| 4TOC-FE-15 | M2 | ASP I.118 GLU Q.125 HOH P.333 |
| 4TOC-FE-16 | M2 | ASP F.118 GLU J.125 HOH F.355 HOH F.370 |
| 4TOC-FE-17 | H2 | MET I.52 MET J.52 |
| 4TOC-FE-18 | D1E1 | MET K.52 MET L.52 |
| 4TOC-FE-19 | M2 | HIS L.155 HIS M.153 |
| 4TOC-FE-20 | H2 | ASP L.118 ASP L.122 HOH L.354 SO4 B.207 |
| 4TOC-FE-21 | D1E1 | ASP K.118 GLU M.125 HOH K.388 HOH M.317 HOH M.358 |
| 4TOC-FE-22 | M2 | MET M.52 MET N.52 |
| 4TOC-FE-23 | M2 | HIS O.153 HIS W.155 |
| 4TOC-FE-24 | H2 | ASP O.118 ASP O.122 HOH O.373 SO4 N.206 |
| 4TOC-FE-25 | D1E1 | ASP Q.118 GLU P.125 HOH P.331 HOH P.398 |
| 4TOC-FE-26 | D1E1 | MET O.52 MET P.52 |
| 4TOC-FE-27 | M2 | MET Q.52 MET R.52 |
| 4TOC-FE-28 | H2 | HIS P.153 HIS R.155 |
| 4TOC-FE-29 | M2 | ASP S.118 GLU R.125 HOH S.372 HOH S.381 |
| 4TOC-FE-30 | D1E1 | ASP M.118 GLU T.125 HOH M.360 |
| 4TOC-FE-31 | D1E1 | ASP T.118 ASP T.122 HOH K.324 HOH T.352 |
| 4TOC-FE-32 | M2 | MET S.52 MET T.52 |
| 4TOC-FE-33 | D1E1 | HIS S.153 HIS U.155 |