| XP_001584012.1 | Trichomonas vaginalis | [FeFe] Group A1 | Metamonada | Trichomonadida | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| XP_001693376.1 | Chlamydomonas reinhardtii | [FeFe] Group A1 | Chlorophyta | Chlamydomonadales | Evolving | Labile | 1 | [FeFe]-centre | None |
| XP_001694503.1 | Chlamydomonas reinhardtii | [FeFe] Group A1 | Chlorophyta | Chlamydomonadales | Evolving | Labile | 1 | [FeFe]-centre | None |
| XP_001709915.1 | Giardia lamblia | [FeFe] Group A1 | Metamonada | Diplomonadida | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| XP_002295160.1 | Thalassiosira pseudonana | [FeFe] Group A1 | Heterokonta | Thalassiosirales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_002674266.1 | Naegleria gruberi | [FeFe] Group A1 | Percolozoa | Schizopyrenida | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_002948483.1 | Volvox carteri | [FeFe] Group A1 | Chlorophyta | Volvocales | Evolving | Labile | 1 | [FeFe]-centre | None |
| XP_002956049.1 | Volvox carteri | [FeFe] Group A1 | Chlorophyta | Volvocales | Evolving | Labile | 1 | [FeFe]-centre | None |
| XP_005843810.1 | Chlorella variabilis | [FeFe] Group A1 | Chlorophyta | Chlorellales | Evolving | Labile | 1 | [FeFe]-centre | None |
| XP_005847147.1 | Chlorella variabilis | [FeFe] Group A1 | Chlorophyta | Chlorellales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_005848612.1 | Chlorella variabilis | [FeFe] Group A1 | Chlorophyta | Chlorellales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_005854537.1 | Nannochloropsis gaditana | [FeFe] Group A1 | Heterokonta | Eustigmatales | Evolving | Labile | 1 | [FeFe]-centre | None |
| XP_008856018.1 | Entamoeba nuttalli | [FeFe] Group B | Amoebozoa | Amoebida | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| XP_008860272.1 | Entamoeba nuttalli | [FeFe] Group A1 | Amoebozoa | Amoebida | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| XP_008860420.1 | Entamoeba nuttalli | [FeFe] Group A1 | Amoebozoa | Amoebida | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |