X-group (possible homology)

7581 Thiolase-like

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Ligands and drugs

7,922

Member domains

2,498

with ligand contacts (≤ 4 Å)

31.5% of members

1,946

with DrugDomain annotations

24.6% of members

1,354

with a DrugBank compound

17.1% 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.

132

Proteins with classified ligands

Superclasses bound (of 23)

8.9

Superclasses per 20 proteins

broader than 76% 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
Lipids and lipid-like molecules	41	14.5	2.83×	q < 0.0001
Benzenoids	14	9.5	1.47×	q = 0.18
Nucleosides, nucleotides, and analogues	45	36.0	1.25×	q = 0.12
Homogeneous non-metal compounds	33	28.0	1.18×	q = 0.36
Organic acids and derivatives	21	20.1	1.04×	q = 0.87
Organic oxygen compounds	18	25.9	0.69×	q = 0.15
Organoheterocyclic compounds	13	20.0	0.65×	q = 0.13
Homogeneous metal compounds	38	63.9	0.59×	q < 0.0001
Phenylpropanoids and polyketides	7	2.7	2.59×	not tested
Organosulfur compounds	2	2.7	0.75×	not tested
Organic nitrogen compounds	1	4.2	0.24×	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
DB01992	COA	Coenzyme A	465
DB03059	CAA	Acetoacetyl-CoA	60
DB03017	DAO	Lauric acid	38
DB04302	TLM	4-Hydroxy-3,5-Dimethyl-5-(2-Methyl-Buta-1,3-Dienyl)-5h-Thiophen-2-One	38
DB03796	PLM	Palmitic Acid	30
DB03434	MPO	3-(N-morpholino)propanesulfonic acid	27
DB03169	HMG	(S)-Hmg-Coa	26
DB03467	NAR	Naringenin	26
DB04519	OCA	Caprylic acid	23
DB03912	PNS	D-pantetheine 4'-phosphate	17
DB04524	MLC	Malonyl-CoA	16
DB08231	MYR	Myristic acid	14
DB02709	STL	Resveratrol	12
DB07611	D1T	DECANE-1-THIOL	12
DB07740	F24	(7R,12R,13R)-13-formyl-12,14-dihydroxy-3,5,7-trimethyltetradeca-2,4-dienoic acid	11
DB02910	CO8	Octanoyl-Coenzyme A	10
DB03600	DKA	Capric acid	8
DB07429	B82	2-({[4-bromo-3-(diethylsulfamoyl)phenyl]carbonyl}amino)benzoic acid	8
DB07650	DFD	Decyl formate	8
DB08407	PMN	Platensimycin	8

Most frequently bound compounds

PDB ligand	Name	Domains in contact
COA	COENZYME A	510
CL	CHLORIDE ION	229
NAmetal	SODIUM ION	138
Kmetal	POTASSIUM ION	134
CAA	ACETOACETYL-COENZYME A	60
ACO	ACETYL COENZYME *A	59
CER	(2S, 3R)-3-HYDROXY-4-OXO-7,10-TRANS,TRANS-DODECADIENAMIDE	46
DAO	LAURIC ACID	38
NAR	NARINGENIN	38
TLM	THIOLACTOMYCIN	38
RBmetal	RUBIDIUM ION	34
OCA	OCTANOIC ACID (CAPRYLIC ACID)	31
MPO	3[N-MORPHOLINO]PROPANE SULFONIC ACID	29
M7U	(2R)-2-(hexadecanoyloxy)-3-{[(10R)-10-methyloctadecanoyl]oxy}propyl phosphate	28
PLM	PALMITIC ACID	28
HMG	3-HYDROXY-3-METHYLGLUTARYL-COENZYME A	26
MGmetal	MAGNESIUM ION	26
UNL	Unknown ligand	22
PNS	4'-PHOSPHOPANTETHEINE	17
CSmetal	CESIUM ION	16