X-group (possible homology)

5071 cytochrome bc1 complex 11 kDa protein-like

Ligands and drugs

691
Member domains
166
with ligand contacts (≤ 4 Å)
24.0% of members
121
with DrugDomain annotations
17.5% of members
9
with a DrugBank compound
1.3% 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.

8
Proteins with classified ligands
2
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.

SuperclassProteinsExpected
0.25×observed / expected4×
RatioSignificance
Lipids and lipid-like molecules80.99.11×not tested
Homogeneous metal compounds13.90.26×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

DrugBankPDB ligandNameDomains
DB03429CDLTetrastearoyl cardiolipin8

Most frequently bound compounds

PDB ligandNameDomains in contact
PLX(9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL74
3PE1,2-Distearoyl-sn-glycerophosphoethanolamine57
PC11,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE54
CDLCARDIOLIPIN10
PEE1,2-dioleoyl-sn-glycero-3-phosphoethanolamine3
UNLUnknown ligand2
FMEN-FORMYLMETHIONINE1
ZNmetalZINC ION1