X-group (possible homology)

1127 Mitochondrial complex I, SGDH subunit

Ligands and drugs

246
Member domains
202
with ligand contacts (≤ 4 Å)
82.1% of members
131
with DrugDomain annotations
53.3% of members
123
with a DrugBank compound
50.0% 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.

7
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
Hydrocarbons10.121×not tested
Lipids and lipid-like molecules70.89.11×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 cardiolipin123

Most frequently bound compounds

PDB ligandNameDomains in contact
CDLCARDIOLIPIN190
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-TRIOL72
PC11,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE50
3PE1,2-Distearoyl-sn-glycerophosphoethanolamine25
PLCDIUNDECYL PHOSPHATIDYL CHOLINE14
I491-carbamimidoyl-3-[2-(3-chloranyl-4-iodanyl-phenyl)ethyl]guanidine10
AMEN-ACETYLMETHIONINE7
6F6(4S,7R)-4-hydroxy-N,N,N-trimethyl-7-(octadecanoyloxy)-4,10-dioxo-3,5,9-trioxa-4lambda~5~-phosphaheptacosan-1-aminium1
C14TETRADECANE1
PEE1,2-dioleoyl-sn-glycero-3-phosphoethanolamine1