X-group (possible homology)

3883 CDP-alcohol phosphotransferase helical bundle domain

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Ligands and drugs

436

Member domains

with ligand contacts (≤ 4 Å)

6.0% of members

with DrugDomain annotations

6.0% of members

with a DrugBank compound

4.4% 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
Hydrocarbons	5	0.0	121×	not tested
Lipids and lipid-like molecules	4	0.7	6.07×	not tested
Organic oxygen compounds	2	1.2	1.70×	not tested
Homogeneous metal compounds	4	2.9	1.38×	not tested
Nucleosides, nucleotides, and analogues	2	1.6	1.22×	not tested
Organic acids and derivatives	1	0.9	1.09×	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
DB03831	MPG	[(Z)-octadec-9-enyl] (2R)-2,3-bis(oxidanyl)propanoate	6
DB09459	TLA	L-tartaric acid	4
DB03403	C5P	Cytidine-5'-Monophosphate	3
DB02484	C2G	Cytidine 5'-diphosphoglycerol	2
DB03542	LIP	L-Myo-Inositol-1-Phosphate	2
DB04555	CDP	Cytidine-5'-Diphosphate	2
DB02515	G3P	sn-glycerol 3-phosphate	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
OLC	(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	10
8K6	Octadecane	9
MGmetal	MAGNESIUM ION	8
58A	5'-O-[(R)-{[(S)-{(2R)-2,3-bis[(9E)-octadec-9-enoyloxy]propoxy}(hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]cytidine	6
CAmetal	CALCIUM ION	6
MPG	[(Z)-octadec-9-enyl] (2R)-2,3-bis(oxidanyl)propanoate	6
NAmetal	SODIUM ION	4
TLA	L(+)-TARTARIC ACID	4
ZNmetal	ZINC ION	4
LFA	EICOSANE	3
C2G	[CYTIDINE-5'-PHOSPHATE] GLYCERYLPHOSPHORIC ACID ESTER	2
C5P	CYTIDINE-5'-MONOPHOSPHATE	2
CDP	CYTIDINE-5'-DIPHOSPHATE	2
FQT	[(2~{S})-3-[[[(2~{R},3~{S},4~{R},5~{R})-5-(6-azanyl-2-oxidanylidene-1,4-dihydropyrimidin-3-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-oxidanyl-phosphoryl]oxy-2-hexanoyloxy-propyl] hexanoate	2
LIP	L-MYO-INOSITOL-1-PHOSPHATE	2
MNmetal	MANGANESE (II) ION	2
OLB	(2S)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	2
PO9	[(2R)-2-hexadecanoyloxy-3-[oxidanyl-[(2S)-2-oxidanyl-3-phosphonooxy-propoxy]phosphoryl]oxy-propyl] (Z)-octadec-9-enoate	2
TCE	3,3',3''-phosphanetriyltripropanoic acid	2
UPL	UNKNOWN BRANCHED FRAGMENT OF PHOSPHOLIPID	2