X-group (possible homology)

3087 CDGSH iron-sulfur domains

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Ligands and drugs

150

Member domains

with ligand contacts (≤ 4 Å)

50.7% of members

with DrugDomain annotations

42.0% of members

with a DrugBank compound

2.0% of members

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.

Proteins with classified ligands

Superclasses bound (of 23)

—

Superclasses per 20 proteins

fewer than 20 proteins: too few to compare at equal depth

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	Ratio	Significance
Benzenoids	1	0.2	4.62×	not tested
Organic oxygen compounds	1	0.6	1.70×	not tested
Homogeneous non-metal compounds	1	0.6	1.57×	not tested
Homogeneous metal compounds	1	1.5	0.69×	not tested

enriched (q < 0.05)depleted (q < 0.05)not significantnot tested (expected < 5)

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
DB09459	TLA	L-tartaric acid	2
DB00695	FUN	Furosemide	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
FES	FE2/S2 (INORGANIC) CLUSTER	76
CDL	CARDIOLIPIN	8
PC1	1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE	6
49I	2-benzamido-4-[(2~{R})-1,2,3,4-tetrahydronaphthalen-2-yl]thiophene-3-carboxylic acid	5
3PE	1,2-Distearoyl-sn-glycerophosphoethanolamine	4
4OY	2-benzamido-4-[(2~{S})-1,2,3,4-tetrahydronaphthalen-2-yl]thiophene-3-carboxylic acid	2
TLA	L(+)-TARTARIC ACID	2
ZNmetal	ZINC ION	2
CL	CHLORIDE ION	1
FUN	5-(AMINOSULFONYL)-4-CHLORO-2-[(2-FURYLMETHYL)AMINO]BENZOIC ACID	1