X-group (possible homology)

825 Aerolysin family of pore-forming toxins

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Ligands and drugs

428

Member domains

100

with ligand contacts (≤ 4 Å)

23.4% of members

with DrugDomain annotations

19.9% of members

with a DrugBank compound

9.1% 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.

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
Homogeneous metal compounds	7	5.8	1.21×	q = 0.65
Organic nitrogen compounds	2	0.4	5.30×	not tested
Organic oxygen compounds	4	2.4	1.70×	not tested
Benzenoids	1	0.9	1.16×	not tested
Organic acids and derivatives	1	1.8	0.55×	not tested
Homogeneous non-metal compounds	1	2.6	0.39×	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
DB02900	M6P	alpha-D-mannose 6-phosphate	2
DB03975	MBO	Mercuribenzoic Acid	2
DB00145	GLY	Glycine	1
DB02676	B3P	2-[3-(2-Hydroxy-1,1-Dihydroxymethyl-Ethylamino)-Propylamino]-2-Hydroxymethyl-Propane-1,3-Diol	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
ZNmetal	ZINC ION	14
P6G	HEXAETHYLENE GLYCOL	12
MRD	(4R)-2-METHYLPENTANE-2,4-DIOL	9
CAmetal	CALCIUM ION	7
MGmetal	MAGNESIUM ION	5
HGmetal	MERCURY (II) ION	4
NAmetal	SODIUM ION	4
CL	CHLORIDE ION	3
U1metal	URANIUM ATOM	3
B3P	2-[3-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-PROPYLAMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	2
M6P	6-O-phosphono-alpha-D-mannopyranose	2
MBO	MERCURIBENZOIC ACID	2
0SM	TRIMETHYL-[2-[[(2S,3S)-2-(OCTADECANOYLAMINO)-3-OXIDANYL-BUTOXY]-OXIDANYL-PHOSPHORYL]OXYETHYL]AZANIUM	1
AMG	methyl alpha-D-galactopyranoside	1
GLY	GLYCINE	1
LUmetal	LUTETIUM (III) ION	1
NGA	2-acetamido-2-deoxy-beta-D-galactopyranose	1
PC	PHOSPHOCHOLINE	1
SMmetal	SAMARIUM (III) ION	1
UNX	UNKNOWN ATOM OR ION	1