X-group (possible homology)

3188 cyanobacterial Oscillatoria Agardhii Agglutinin (OAA)

Open in classification tree →

Ligands and drugs

Member domains

with ligand contacts (≤ 4 Å)

48.5% of members

with DrugDomain annotations

30.3% of members

with a DrugBank compound

24.2% 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	0.25×observed / expected4×	Ratio	Significance
Organic nitrogen compounds	1	0.1		11×	not tested
Organic oxygen compounds	3	0.6		5.09×	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
DB02219	CXS	3-(cyclohexylamino)propanesulfonic acid	2
DB04447	DTT	1,4-Dithiothreitol	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
CXS	3-CYCLOHEXYL-1-PROPYLSULFONIC ACID	4
MAN	alpha-D-mannopyranose	2
DTT	2,3-DIHYDROXY-1,4-DITHIOBUTANE	1
NAmetal	SODIUM ION	1