X-group (possible homology)

1001 Formate dehydrogenase/DMSO reductase, domain 1

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Ligands and drugs

937

Member domains

313

with ligand contacts (≤ 4 Å)

33.4% of members

234

with DrugDomain annotations

25.0% of members

with a DrugBank compound

5.3% 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)

5.6

Superclasses per 20 proteins

narrower than 78% of the 256 X-groups with enough proteins to compare (median 7.6)

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
Nucleosides, nucleotides, and analogues	24	7.1	3.39×	q < 0.0001
Homogeneous metal compounds	8	12.6	0.64×	q = 0.12
Homogeneous non-metal compounds	2	5.5	0.36×	q = 0.20
Organic oxygen compounds	0	5.1	0	q = 0.01
Mixed metal/non-metal compounds	2	0.5	3.71×	not tested
Organoheterocyclic compounds	2	4.0	0.51×	not tested
Lipids and lipid-like molecules	1	2.9	0.35×	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
DB03317	HEC	Ferroheme C	10
DB07349	AGA	(1S)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PENTANOYLOXY)METHYL]ETHYL OCTANOATE	8
DB04137	GTP	Guanosine-5'-Triphosphate	3
DB00157	NAI	NADH	2
DB18509	AST	Arsenite ion	2
DB04315	GDP	Guanosine-5'-Diphosphate	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
SF4	IRON/SULFUR CLUSTER	218
MGD	2-AMINO-5,6-DIMERCAPTO-7-METHYL-3,7,8A,9-TETRAHYDRO-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-4-ONE GUANOSINE DINUCLEOTIDE	184
F3S	FE3-S4 CLUSTER	40
MD1	PHOSPHORIC ACID 4-(2-AMINO-4-OXO-3,4,5,6,-TETRAHYDRO-PTERIDIN-6-YL)-2-HYDROXY-3,4-DIMERCAPTO-BUT-3-EN-YL ESTER GUANYLATE ESTER	31
PGD	2-AMINO-5,6-DIMERCAPTO-7-METHYL-3,7,8A,9-TETRAHYDRO-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-4-ONE GUANOSINE DINUCLEOTIDE	13
HEC	HEME C	10
AGA	(1S)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PENTANOYLOXY)METHYL]ETHYL OCTANOATE	8
NAmetal	SODIUM ION	7
SO3	SULFITE ION	6
ZNmetal	ZINC ION	6
MOmetal	MOLYBDENUM ATOM	5
CAmetal	CALCIUM ION	4
CL	CHLORIDE ION	4
6MOmetal	MOLYBDENUM(VI) ION	3
BSY	BISELENITE ION	3
MGmetal	MAGNESIUM ION	3
3PH	1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE	2
ART	ARSENATE	2
AST	ARSENITE	2
CO2	CARBON DIOXIDE	2