X-group (possible homology)

5008 Mitochondrial cytochrome c oxidase subunit VIIc (aka VIIIa)

Open in classification tree →

Ligands and drugs

246

Member domains

180

with ligand contacts (≤ 4 Å)

73.2% of members

139

with DrugDomain annotations

56.5% of members

with a DrugBank compound

13.4% 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
Lipids and lipid-like molecules	4	0.4	9.11×	not tested
Organoheterocyclic compounds	1	0.6	1.65×	not tested
Homogeneous metal compounds	1	1.9	0.52×	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
DB02659	CHD	Cholic Acid	18
DB03429	CDL	Tetrastearoyl cardiolipin	11
DB01728	PEF	1,2-dihexadecanoyl-sn-glycero-3-phosphoethanolamine	4

Most frequently bound compounds

PDB ligand	Name	Domains in contact
TGL	TRISTEAROYLGLYCEROL	128
DMU	DECYL-BETA-D-MALTOPYRANOSIDE	80
CDL	CARDIOLIPIN	30
CHD	CHOLIC ACID	20
PGV	(1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE	9
PC1	1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE	6
PEF	DI-PALMITOYL-3-SN-PHOSPHATIDYLETHANOLAMINE	6
XE	XENON	6
3PE	1,2-Distearoyl-sn-glycerophosphoethanolamine	4
ZNmetal	ZINC ION	4
CDmetal	CADMIUM ION	3
CN3	(2R,5S,11R,14R)-5,8,11-trihydroxy-2-(nonanoyloxy)-5,11-dioxido-16-oxo-14-[(propanoyloxy)methyl]-4,6,10,12,15-pentaoxa-5,11-diphosphanonadec-1-yl undecanoate	2
J6X	2-(4-methyl-1,3-thiazol-2-yl)-1-benzothiophen-3-ol	2
UNL	Unknown ligand	2
CQX	(2S,3S,4S,5S,6R)-2-(2-decoxyethoxy)-6-(hydroxymethyl)oxane-3,4,5-triol	1
PEE	1,2-dioleoyl-sn-glycero-3-phosphoethanolamine	1