X-group (possible homology)

568 p8-MTCP1-related

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Ligands and drugs

706

Member domains

227

with ligand contacts (≤ 4 Å)

32.2% of members

136

with DrugDomain annotations

19.3% of members

with a DrugBank compound

13.3% 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	0.25×observed / expected4×	Ratio	Significance
Homogeneous metal compounds	4	6.8		0.59×	q = 0.25
Lipids and lipid-like molecules	10	1.5		6.51×	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
DB03429	CDL	Tetrastearoyl cardiolipin	90
DB02777	PLC	Diundecyl Phosphatidyl Choline	4

Most frequently bound compounds

PDB ligand	Name	Domains in contact
CDL	CARDIOLIPIN	160
MGmetal	MAGNESIUM ION	36
3PE	1,2-Distearoyl-sn-glycerophosphoethanolamine	19
PC1	1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE	6
MYR	MYRISTIC ACID	3
CU1metal	COPPER (I) ION	2
PLC	DIUNDECYL PHOSPHATIDYL CHOLINE	2
Q7G	2-{[(4-O-alpha-D-glucopyranosyl-alpha-D-glucopyranosyl)oxy]methyl}-4-{[(3beta,9beta,14beta,17beta,25R)-spirost-5-en-3-yl]oxy}butyl 4-O-alpha-D-glucopyranosyl-alpha-D-glucopyranoside	2