X-group (possible homology)

3755 YscO-like

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Ligands and drugs

2,963

Member domains

with ligand contacts (≤ 4 Å)

1.3% of members

with DrugDomain annotations

0.8% of members

with a DrugBank compound

0.5% 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
Organohalogen compounds	1	0.0	119×	not tested
Organic nitrogen compounds	1	0.1	11×	not tested
Homogeneous non-metal compounds	2	0.6	3.14×	not tested
Lipids and lipid-like molecules	1	0.3	3.04×	not tested
Organoheterocyclic compounds	1	0.5	2.20×	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
DB01087	—	—	1
DB01593	—	—	1
DB03570	144	Tris-Hydroxymethyl-Methyl-Ammonium	1
DB14487	—	—	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
CL	CHLORIDE ION	20
IOD	IODIDE ION	3
144	TRIS-HYDROXYMETHYL-METHYL-AMMONIUM	1
71M	6-methylpyridin-2-amine	1
A1A4Q	Cladoniamide A	1
ES3	4-bromo-1H-imidazole	1
HGmetal	MERCURY (II) ION	1
MGmetal	MAGNESIUM ION	1
NAmetal	SODIUM ION	1
PBU	(2R)-3-{[(R)-HYDROXY{[(1R,2R,3S,4R,5R,6S)-2,3,6-TRIHYDROXY-4,5-BIS(PHOSPHONOOXY)CYCLOHEXYL]OXY}PHOSPHORYL]OXY}PROPANE-1,2-DIYL DIBUTANOATE	1