X-group (possible homology)

3009 Insertion subdomain in DsbA-like

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Ligands and drugs

727

Member domains

132

with ligand contacts (≤ 4 Å)

18.2% of members

116

with DrugDomain annotations

16.0% of members

with a DrugBank compound

7.6% 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
Homogeneous metal compounds	6	7.3	0.83×	q = 0.69
Organosulfur compounds	2	0.3	6.57×	not tested
Phenylpropanoids and polyketides	2	0.3	6.50×	not tested
Organic nitrogen compounds	2	0.5	4.24×	not tested
Benzenoids	3	1.1	2.77×	not tested
Organic acids and derivatives	6	2.3	2.62×	not tested
Organic oxygen compounds	3	3.0	1.02×	not tested
Organoheterocyclic compounds	2	2.3	0.88×	not tested
Homogeneous non-metal compounds	2	3.2	0.63×	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
DB00143	GSH	Glutathione	11
DB02580	PG6	Pentaglyme	4
DB02219	CXS	3-(cyclohexylamino)propanesulfonic acid	3
DB03904	URE	Urea	2
DB04700	GSF	GLUTATHIONE SULFINATE	2
DB06770	010	Benzyl alcohol	2
DB06952	2C2	(2S)-2-HYDROXY-2H-CHROMENE-2-CARBOXYLIC ACID	2
DB08636	TOH	2-Hydroxybenzalpyruvate	2
DB08637	TOM	4-(2-METHOXYPHENYL)-2-OXOBUT-3-ENOIC ACID	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
MGmetal	MAGNESIUM ION	7
GTX	S-HEXYLGLUTATHIONE	6
GSH	Glutathione	5
PG6	1-(2-METHOXY-ETHOXY)-2-{2-[2-(2-METHOXY-ETHOXY]-ETHOXY}-ETHANE	4
SW0	N-(2-fluorophenyl)-5-methyl-1,2-oxazole-3-carboxamide	4
CXS	3-CYCLOHEXYL-1-PROPYLSULFONIC ACID	3
010	phenylmethanol	2
1YO	3-[(2-methylbenzyl)sulfanyl]-4H-1,2,4-triazol-4-amine	2
2C2	(2S)-2-HYDROXY-2H-CHROMENE-2-CARBOXYLIC ACID	2
5V9	~{N}-[(4-thiophen-3-ylphenyl)methyl]cyclohexanamine	2
A1BX8	N-(2-aminophenyl)-5-methyl-1,2-oxazole-3-carboxamide	2
A1BYA	N-(2-amino-3-fluorophenyl)-5-methyl-1,2-oxazole-3-carboxamide	2
A1CJJ	N-[3-(3-{[(2R)-2-hydroxybutyl]amino}-3-oxoprop-1-yn-1-yl)phenyl]-5-methyl-1,2-oxazole-3-carboxamide	2
A1CJK	N-[3-(3-{[(1S)-2-hydroxy-1-phenylethyl]amino}-3-oxoprop-1-yn-1-yl)phenyl]-5-methyl-1,2-oxazole-3-carboxamide	2
A1CQW	N-[3-(3-{[(2S)-2-hydroxybutyl]amino}-3-oxoprop-1-yn-1-yl)phenyl]-5-methyl-1,2-oxazole-3-carboxamide	2
CAmetal	CALCIUM ION	2
CDmetal	CADMIUM ION	2
CL	CHLORIDE ION	2
GSF	L-GAMMA-GLUTAMYL-3-SULFINO-L-ALANYLGLYCINE	2
Q2O	1-methyl-1H-pyrazol-5-amine	2