187 alpha-helical ferredoxin-like
Ligands and drugs
Aggregated over all current member domains of this group. Drug annotations come from DrugDomain; buffers and crystallization additives are excluded from the tables below.
Chemical profile
ClassyFire chemical superclasses of the ligands bound by this X-group's proteins, from DrugDomain annotations.
The raw number of superclasses rises with the number of proteins sampled; the per-20 value compares X-groups at equal depth.
| Superclass | Proteins | Expected | 0.25×observed / expected4× | Ratio | Significance |
|---|---|---|---|---|---|
| Homogeneous metal compounds | 4 | 8.7 | 0.46× | q = 0.05 | |
| Lipids and lipid-like molecules | 9 | 2.0 | 4.55× | not tested | |
| Benzenoids | 5 | 1.3 | 3.85× | not tested | |
| Nucleosides, nucleotides, and analogues | 8 | 4.9 | 1.63× | not tested | |
| Organic oxygen compounds | 5 | 3.5 | 1.42× | not tested | |
| Organoheterocyclic compounds | 3 | 2.7 | 1.10× | not tested | |
| Organic acids and derivatives | 3 | 2.8 | 1.09× | not tested | |
| Homogeneous non-metal compounds | 1 | 3.8 | 0.26× | not tested |
Unit: a protein (UniProt accession) with a ligand-binding domain in this X-group, counted once per superclass. Expected counts use each superclass's frequency across all ligand-binding X-groups; significance is Fisher's exact test with Benjamini–Hochberg correction. Buffers and crystallization additives are excluded. ECOD v295.2; the method follows the ECOD 2027 update, whose published figures used a slightly different artifact filter.
DrugBank compounds
| DrugBank | PDB ligand | Name | Domains |
|---|---|---|---|
| DB18267 | HEM | Ferroheme | 99 |
| DB03147 | FAD | Flavin adenine dinucleotide | 89 |
| DB04657 | CBE | Carboxin | 19 |
| DB03461 | NAP | Nicotinamide adenine dinucleotide phosphate | 15 |
| DB02338 | NDP | NADPH | 12 |
| DB02686 | UMQ | Undecyl-Beta-D-Maltopyranoside | 8 |
| DB04141 | BHG | 2-Hexyloxy-6-Hydroxymethyl-Tetrahydro-Pyran-3,4,5-Triol | 6 |
| DB04631 | AT5 | Atpenin A5 | 6 |
| DB09110 | COM | Coenzyme M | 6 |
| DB08689 | UQ1 | Ubiquinone Q1 | 5 |
| DB08690 | UQ2 | Ubiquinone Q2 | 4 |
| DB00140 | RBF | Riboflavin | 2 |
| DB00160 | ALA | Alanine | 2 |
| DB00172 | PRO | Proline | 2 |
| DB04795 | TTF | Thenoyltrifluoroacetone | 2 |
| DB07490 | BRS | 2-[1-(4-CHLORO-PHENYL)-ETHYL]-4,6-DINITRO-PHENOL | 2 |
| DB13075 | MQ7 | Menaquinone 7 | 2 |
| DB00123 | LYS | Lysine | 1 |
| DB00149 | LEU | Leucine | 1 |
| DB00730 | TMG | Thiabendazole | 1 |
Most frequently bound compounds
| PDB ligand | Name | Domains in contact |
|---|---|---|
| SF4 | IRON/SULFUR CLUSTER | 271 |
| F3S | FE3-S4 CLUSTER | 148 |
| FAD | FLAVIN-ADENINE DINUCLEOTIDE | 101 |
| HEM | PROTOPORPHYRIN IX CONTAINING FE | 101 |
| 9S8 | Non-cubane [4Fe-4S]-cluster | 22 |
| CBE | 2-METHYL-N-PHENYL-5,6-DIHYDRO-1,4-OXATHIINE-3-CARBOXAMIDE | 18 |
| NAP | NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE | 14 |
| UNL | Unknown ligand | 13 |
| NDP | NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE | 9 |
| Kmetal | POTASSIUM ION | 8 |
| FTN | N-[3-(1-methylethoxy)phenyl]-2-(trifluoromethyl)benzamide | 7 |
| UMQ | UNDECYL-MALTOSIDE | 7 |
| AT5 | 3-[(2S,4S,5R)-5,6-DICHLORO-2,4-DIMETHYL-1-OXOHEXYL]-4-HYDROXY-5,6-DIMETHOXY-2(1H)-PYRIDINONE | 6 |
| UQ1 | UBIQUINONE-1 | 6 |
| FMN | FLAVIN MONONUCLEOTIDE | 5 |
| PGV | (1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE | 5 |
| BHG | hexyl beta-D-galactopyranoside | 4 |
| CAmetal | CALCIUM ION | 4 |
| PC1 | 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE | 4 |
| PCI | PENTACHLOROPHENOL | 4 |