X-group (possible homology)

4121 CorA soluble domain-like

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Ligands and drugs

732

Member domains

186

with ligand contacts (≤ 4 Å)

25.4% of members

107

with DrugDomain annotations

14.6% of members

with a DrugBank compound

1.4% 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	1	0.1	6.90×	not tested
Lipids and lipid-like molecules	2	0.8	2.60×	not tested
Homogeneous non-metal compounds	3	1.5	2.02×	not tested
Homogeneous metal compounds	6	3.4	1.77×	not tested
Organic oxygen compounds	2	1.4	1.46×	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
DB03350	NCO	Cobalt hexammine ion	5
DB02210	HEZ	Hexane-1,6-Diol	2
DB04349	PGO	(S)-propane-1,2-diol	2
DB02686	UMQ	Undecyl-Beta-D-Maltopyranoside	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
MGmetal	MAGNESIUM ION	137
CL	CHLORIDE ION	45
CAmetal	CALCIUM ION	10
PG0	2-(2-METHOXYETHOXY)ETHANOL	9
ZNmetal	ZINC ION	7
CSmetal	CESIUM ION	5
NCO	COBALT HEXAMMINE(III)	5
HEZ	HEXANE-1,6-DIOL	2
NAmetal	SODIUM ION	2
NImetal	NICKEL (II) ION	2
PGO	S-1,2-PROPANEDIOL	2
UMQ	UNDECYL-MALTOSIDE	2
COmetal	COBALT (II) ION	1
DMU	DECYL-BETA-D-MALTOPYRANOSIDE	1