X-group (possible homology)

875 Chorismate synthase, AroC

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Ligands and drugs

747

Member domains

with ligand contacts (≤ 4 Å)

2.5% of members

with DrugDomain annotations

2.5% of members

with a DrugBank compound

2.3% 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
Mixed metal/non-metal compounds	1	0.1	8.05×	not tested
Homogeneous non-metal compounds	3	1.3	2.36×	not tested
Nucleosides, nucleotides, and analogues	3	1.6	1.83×	not tested
Organoheterocyclic compounds	1	0.9	1.10×	not tested
Organic acids and derivatives	1	0.9	1.09×	not tested
Organic oxygen compounds	1	1.2	0.85×	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
DB03247	FMN	Flavin mononucleotide	9
DB03350	NCO	Cobalt hexammine ion	4
DB09459	TLA	L-tartaric acid	2
DB02701	NCA	Nicotinamide	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
FMN	FLAVIN MONONUCLEOTIDE	9
CL	CHLORIDE ION	4
EPS	5-[(1-CARBOXYVINYL)OXY]-4-HYDROXY-3-(PHOSPHONOOXY)CYCLOHEX-1-ENE-1-CARBOXYLIC ACID	4
NCO	COBALT HEXAMMINE(III)	4
NAmetal	SODIUM ION	3
TLA	L(+)-TARTARIC ACID	2
NCA	NICOTINAMIDE	1