X-group (possible homology)

4250 Duffy-binding-like domain, N-terminal subdomain

Ligands and drugs

227
Member domains
23
with ligand contacts (≤ 4 Å)
10.1% of members
19
with DrugDomain annotations
8.4% of members
17
with a DrugBank compound
7.5% 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.

6
Proteins with classified ligands
4
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.

SuperclassProteinsExpected
0.25×observed / expected4×
RatioSignificance
Organic oxygen compounds21.21.70×not tested
Homogeneous non-metal compounds21.31.57×not tested
Organic acids and derivatives10.91.09×not tested
Homogeneous metal compounds22.90.69×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

DrugBankPDB ligandNameDomains
DB00172PROProline1
DB01872ASG2-deoxy-2-acetamido-beta-D-galactose-4-sulfate1
DB03721SIAN-acetyl-alpha-neuraminic acid1
DB038963POTriphosphoric acid1

Most frequently bound compounds

PDB ligandNameDomains in contact
CLCHLORIDE ION5
MGmetalMAGNESIUM ION2
SIAN-acetyl-alpha-neuraminic acid2
3POTRIPHOSPHATE1
BENBENZAMIDINE1
DHL2-AMINO-ETHANETHIOL1
PROPROLINE1
ZNmetalZINC ION1