X-group (possible homology)

4011 beta-barrel domain in acetyl-CoA synthetase-like proteins

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Ligands and drugs

1,263

Member domains

611

with ligand contacts (≤ 4 Å)

48.4% of members

441

with DrugDomain annotations

34.9% of members

253

with a DrugBank compound

20.0% 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.

Proteins with classified ligands

Superclasses bound (of 23)

4.4

Superclasses per 20 proteins

narrower than 88% 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	85	24.3	3.50×	q < 0.0001
Homogeneous non-metal compounds	11	18.9	0.58×	q = 0.06
Homogeneous metal compounds	18	43.1	0.42×	q < 0.0001
Benzenoids	1	6.4	0.16×	q = 0.04
Organoheterocyclic compounds	2	13.5	0.15×	q = 4.4e-4
Organic oxygen compounds	2	17.5	0.11×	q < 0.0001
Organic acids and derivatives	1	13.6	0.07×	q < 0.0001
Lipids and lipid-like molecules	0	9.8	0	q = 1.7e-4
Organosulfur compounds	1	1.8	0.55×	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	119
DB00171	ATP	ATP	30
DB03230	PRX	Adenosine-5'-Propylphosphate	23
DB02596	APC	alpha,beta-Methyleneadenosine 5'-triphosphate	13
DB16833	ADP	Adenosine disphosphate	9
DB09459	TLA	L-tartaric acid	5
DB01992	COA	Coenzyme A	2
DB02527	CMP	Cyclic adenosine monophosphate	2
DB03909	ACP	Adenosine-5'-[Beta, Gamma-Methylene]Triphosphate	2
DB02175	MLA	Malonic acid	1
DB03345	BME	Mercaptoethanol	1
DB03376	A5A	5'-O-(N-(Alanyl)sulfamoyl)adenosine	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
AMP	ADENOSINE MONOPHOSPHATE	159
ATP	ADENOSINE-5'-TRIPHOSPHATE	40
PRX	ADENOSINE-5'-MONOPHOSPHATE-PROPYL ESTER	31
MGmetal	MAGNESIUM ION	29
ZNmetal	ZINC ION	29
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	22
CL	CHLORIDE ION	22
CAmetal	CALCIUM ION	20
ANP	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER	18
APC	DIPHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER	14
SLU	5'-O-[N-(DEHYDROLUCIFERYL)-SULFAMOYL] ADENOSINE	14
5SV	[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl icosyl hydrogen phosphate	10
SVS	5'-deoxy-5'-({[2-(2-hydroxyphenyl)ethyl]sulfonyl}amino)adenosine	10
WTA	5'-O-[(S)-ethoxy(hydroxy)phosphoryl]adenosine	10
3UK	5'-O-[(S)-[(2-aminobenzoyl)oxy](hydroxy)phosphoryl]adenosine	9
ADP	ADENOSINE-5'-DIPHOSPHATE	9
NAmetal	SODIUM ION	9
YHF	5'-O-[(S)-(cyclopentyloxy)(hydroxy)phosphoryl]adenosine	9
YHQ	5'-O-{(R)-hydroxy[(propan-2-yl)oxy]phosphoryl}adenosine	9
YHT	5'-O-{(S)-hydroxy[(prop-2-yn-1-yl)oxy]phosphoryl}adenosine	9