X-group (possible homology)

5014 iron-sulfur subunit (ISP) transmembrane anchor

Ligands and drugs

605
Member domains
290
with ligand contacts (≤ 4 Å)
47.9% of members
186
with DrugDomain annotations
30.7% of members
93
with a DrugBank compound
15.4% 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.

22
Proteins with classified ligands
5
Superclasses bound (of 23)
4.8
Superclasses per 20 proteins
narrower than 86% of the 256 X-groups with enough proteins to compare (median 7.6)

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
Homogeneous metal compounds010.70q < 0.0001
Nucleosides, nucleotides, and analogues06.00q = 3.1e-3
Hydrocarbons30.220×not tested
Lipids and lipid-like molecules192.47.87×not tested
Organoheterocyclic compounds33.30.90×not tested
Organic oxygen compounds14.30.23×not tested
Homogeneous non-metal compounds14.70.21×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
DB04327PEEPhosphatidylethanolamine53
DB03429CDLTetrastearoyl cardiolipin25
DB09114PCFColfosceril palmitate17
DB02686UMQUndecyl-Beta-D-Maltopyranoside13
DB01728PEF1,2-dihexadecanoyl-sn-glycero-3-phosphoethanolamine12
DB09270U10Ubidecarenone8
DB02777PLCDiundecyl Phosphatidyl Choline4
DB02144PIE1,2-diacyl-sn-glycero-3-phosphoinositol1
DB02580PG6Pentaglyme1
DB04141—2-Hexyloxy-6-Hydroxymethyl-Tetrahydro-Pyran-3,4,5-Triol1
DB04799—6-Hydroxy-5-undecyl-4,7-benzothiazoledione1
DB07401—Azoxystrobin1
DB07636—5-Heptyl-6-hydroxy-1,3-benzothiazole-4,7-dione1
DB07763—(5S)-3-ANILINO-5-(2,4-DIFLUOROPHENYL)-5-METHYL-1,3-OXAZOLIDINE-2,4-DIONE1
DB07778—(S)-famoxadone1
DB08330—METHYL (2Z)-3-METHOXY-2-{2-[(E)-2-PHENYLVINYL]PHENYL}ACRYLATE1
DB08453—2-Nonyl-4-quinolinol 1-oxide1
DB08690—Ubiquinone Q21

Most frequently bound compounds

PDB ligandNameDomains in contact
PC11,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE96
PEE1,2-dioleoyl-sn-glycero-3-phosphoethanolamine75
3PE1,2-Distearoyl-sn-glycerophosphoethanolamine53
CDLCARDIOLIPIN52
PTYPHOSPHATIDYLETHANOLAMINE36
FESFE2/S2 (INORGANIC) CLUSTER26
SQD1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL26
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-TRIOL22
PCF1,2-DIACYL-SN-GLYCERO-3-PHOSHOCHOLINE21
6PH(1R)-2-(phosphonooxy)-1-[(tridecanoyloxy)methyl]ethyl pentadecanoate18
PEFDI-PALMITOYL-3-SN-PHOSPHATIDYLETHANOLAMINE16
7PH(1R)-2-(dodecanoyloxy)-1-[(phosphonooxy)methyl]ethyl tetradecanoate14
UMQUNDECYL-MALTOSIDE14
3PH1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE12
U10UBIQUINONE-1011
PL92,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE9
UNLUnknown ligand8
PX41,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE7
UQ65-(3,7,11,15,19,23-HEXAMETHYL-TETRACOSA-2,6,10,14,18,22-HEXAENYL)-2,3-DIMETHOXY-6-METHYL-BENZENE-1,4-DIOL7
PGV(1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE6