X-group (possible homology)

6164 Bestrophin

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Ligands and drugs

433

Member domains

295

with ligand contacts (≤ 4 Å)

68.1% of members

205

with DrugDomain annotations

47.3% of members

with a DrugBank compound

7.9% 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
Lipids and lipid-like molecules	4	0.8	5.21×	not tested
Homogeneous non-metal compounds	5	1.5	3.37×	not tested
Homogeneous metal compounds	7	3.4	2.07×	not tested
Organic acids and derivatives	1	1.1	0.94×	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
DB00149	LEU	Leucine	2
DB00142	GLU	Glutamic acid	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
CAmetal	CALCIUM ION	190
CL	CHLORIDE ION	142
ZNmetal	ZINC ION	95
MC3	1,2-DIMYRISTOYL-RAC-GLYCERO-3-PHOSPHOCHOLINE	50
ABU	GAMMA-AMINO-BUTANOIC ACID	34
DU0	2-[2-[(1~{S},2~{S},4~{S},5'~{R},6~{R},7~{S},8~{R},9~{S},12~{S},13~{R},16~{S})-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.0^{2,9}.0^{4,8}.0^{13,18}]icos-18-ene-6,2'-oxane]-16-yl]oxyethyl]propane-1,3-diol	25
PAB	4-AMINOBENZOIC ACID	15
Kmetal	POTASSIUM ION	10
GLU	GLUTAMIC ACID	6
C6N	6-cyclohexyl-2-(4-cyclohexylbutyl)-2-({[4-O-(alpha-D-glucopyranosyl)-beta-D-glucopyranosyl]oxy}methyl)hexyl 4-O-alpha-D-glucopyranosyl-beta-D-glucopyranoside	5
NAmetal	SODIUM ION	5
LEU	LEUCINE	2