X-group (possible homology)

7541 Molybdenum cofactor biosynthesis proteins

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Ligands and drugs

790

Member domains

101

with ligand contacts (≤ 4 Å)

12.8% of members

with DrugDomain annotations

12.0% of members

with a DrugBank compound

9.0% 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
Mixed metal/non-metal compounds	2	0.2	12×	not tested
Organic nitrogen compounds	1	0.3	3.97×	not tested
Homogeneous non-metal compounds	3	1.7	1.77×	not tested
Homogeneous metal compounds	6	3.9	1.55×	not tested
Nucleosides, nucleotides, and analogues	3	2.2	1.38×	not tested
Organic oxygen compounds	2	1.6	1.27×	not tested
Lipids and lipid-like molecules	1	0.9	1.14×	not tested
Organoheterocyclic compounds	1	1.2	0.82×	not tested
Organic acids and derivatives	1	1.2	0.82×	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
DB00131	AMP	Adenosine phosphate	14
DB16833	ADP	Adenosine disphosphate	8
DB15878	MOO	Molybdate	6
DB03766	PPI	Propanoic acid	3
DB00171	ATP	ATP	2
DB03366	—	Imidazole	2
DB02676	B3P	2-[3-(2-Hydroxy-1,1-Dihydroxymethyl-Ethylamino)-Propylamino]-2-Hydroxymethyl-Propane-1,3-Diol	1
DB06697	D8Z	Artemether	1
DB09274	D95	Artesunate	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
MGmetal	MAGNESIUM ION	23
AMP	ADENOSINE MONOPHOSPHATE	14
NAmetal	SODIUM ION	9
ADP	ADENOSINE-5'-DIPHOSPHATE	8
MOO	MOLYBDATE ION	6
CAmetal	CALCIUM ION	5
CL	CHLORIDE ION	4
APR	ADENOSINE-5-DIPHOSPHORIBOSE	2
ATP	ADENOSINE-5'-TRIPHOSPHATE	2
MTE	PHOSPHONIC ACIDMONO-(2-AMINO-5,6-DIMERCAPTO-4-OXO-3,7,8A,9,10,10A-HEXAHYDRO-4H-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-7-YLMETHYL)ESTER	2
PPI	PROPANOIC ACID	2
WO4	TUNGSTATE(VI)ION	2
ACE	ACETYL GROUP	1
B3P	2-[3-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-PROPYLAMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	1
D8Z	Artemether	1
D95	Artesunate	1
MNmetal	MANGANESE (II) ION	1
MOmetal	MOLYBDENUM ATOM	1
MRD	(4R)-2-METHYLPENTANE-2,4-DIOL	1
NWS	Moco-AMP	1