X-group (possible homology)

323 CoA-dependent acyltransferases

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Ligands and drugs

9,711

Member domains

1,535

with ligand contacts (≤ 4 Å)

15.8% of members

1,080

with DrugDomain annotations

11.1% of members

739

with a DrugBank compound

7.6% 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.

142

Proteins with classified ligands

Superclasses bound (of 23)

9.6

Superclasses per 20 proteins

broader than 90% 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.

Superclass	Proteins	Expected	Ratio	Significance
Nucleosides, nucleotides, and analogues	100	38.7	2.58×	q < 0.0001
Lipids and lipid-like molecules	29	15.6	1.86×	q = 2.5e-3
Benzenoids	16	10.2	1.56×	q = 0.11
Organic acids and derivatives	32	21.7	1.48×	q = 0.03
Homogeneous non-metal compounds	39	30.1	1.29×	q = 0.12
Homogeneous metal compounds	44	68.7	0.64×	q = 1.1e-4
Organic oxygen compounds	13	27.9	0.47×	q = 2.4e-3
Organoheterocyclic compounds	8	21.6	0.37×	q = 1.6e-3
Organohalogen compounds	1	0.4	2.51×	not tested
Alkaloids and derivatives	1	0.5	2.09×	not tested
Phenylpropanoids and polyketides	6	2.9	2.06×	not tested
Organic nitrogen compounds	8	4.5	1.79×	not tested
Organosulfur compounds	3	2.9	1.04×	not tested
Hydrocarbons	1	1.0	1.02×	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
DB00131	AMP	Adenosine phosphate	122
DB01992	COA	Coenzyme A	103
DB00171	ATP	ATP	45
DB03912	PNS	D-pantetheine 4'-phosphate	41
DB00446	CLM	Chloramphenicol	24
DB02648	152	(3-Carboxy-2-(R)-Hydroxy-Propyl)-Trimethyl-Ammonium	23
DB03230	PRX	Adenosine-5'-Propylphosphate	23
DB02596	APC	alpha,beta-Methyleneadenosine 5'-triphosphate	13
DB02703	FUA	Fusidic acid	13
DB01846	CAO	Oxidized coenzyme A	10
DB00936	SAL	Salicylic acid	9
DB16833	ADP	Adenosine disphosphate	9
DB09459	TLA	L-tartaric acid	8
DB00149	LEU	Leucine	7
DB00161	VAL	Valine	7
DB03793	BEZ	Benzoic acid	7
DB03796	PLM	Palmitic Acid	7
DB02910	CO8	Octanoyl-Coenzyme A	6
DB03345	BME	Mercaptoethanol	6
DB03699	SCA	Succinyl-Coenzyme A	6

Most frequently bound compounds

PDB ligand	Name	Domains in contact
AMP	ADENOSINE MONOPHOSPHATE	184
CL	CHLORIDE ION	154
COA	COENZYME A	126
MGmetal	MAGNESIUM ION	116
CAmetal	CALCIUM ION	65
ATP	ADENOSINE-5'-TRIPHOSPHATE	58
PNS	4'-PHOSPHOPANTETHEINE	58
NAmetal	SODIUM ION	56
ZNmetal	ZINC ION	32
PRX	ADENOSINE-5'-MONOPHOSPHATE-PROPYL ESTER	31
CLM	CHLORAMPHENICOL	24
Kmetal	POTASSIUM ION	23
152	CARNITINE	22
JAA	{(1R,2R)-3-oxo-2-[(2Z)-pent-2-en-1-yl]cyclopentyl}acetic acid	21
6R9	[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl] ethanoate	20
APC	DIPHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER	20
IOD	IODIDE ION	19
ANP	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER	18
OLA	OLEIC ACID	18
S0N	o-succinylbenzoyl-N-coenzyme A	16