X-group (possible homology)

1170 IL8-related

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Ligands and drugs

879

Member domains

137

with ligand contacts (≤ 4 Å)

15.6% of members

120

with DrugDomain annotations

13.7% of members

102

with a DrugBank compound

11.6% 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	8.2	0.85×	q = 0.71
Organic salts	1	0.0	57×	not tested
Organic nitrogen compounds	1	0.5	1.87×	not tested
Organic oxygen compounds	6	3.3	1.80×	not tested
Organic acids and derivatives	3	2.6	1.16×	not tested
Homogeneous non-metal compounds	3	3.6	0.83×	not tested
Lipids and lipid-like molecules	1	1.9	0.54×	not tested
Organoheterocyclic 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
DB02379	BGC	Beta-D-Glucose	13
DB02210	HEZ	Hexane-1,6-Diol	7
DB00141	NAG	N-Acetylglucosamine	5
DB00139	SIN	Succinic acid	3
DB03635	ESA	Ethanesulfonic acid	1
DB09130	—	—	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
CL	CHLORIDE ION	14
BGC	beta-D-glucopyranose	13
HEZ	HEXANE-1,6-DIOL	8
NAG	2-acetamido-2-deoxy-beta-D-glucopyranose	7
AUmetal	GOLD ION	6
GLA	alpha-D-galactopyranose	6
ZNmetal	ZINC ION	6
SIN	SUCCINIC ACID	4
AOP	PENTYLOXYAMINO-ACETALDEHYDE	2
GLC	alpha-D-glucopyranose	2
Kmetal	POTASSIUM ION	2
TCN	TETRACYANONICKELATE ION	2
3GG	1-phenyl-3-[4-(1H-tetrazol-5-yl)phenyl]urea	1
ESA	ETHANESULFONIC ACID	1
NAmetal	SODIUM ION	1
SO3	SULFITE ION	1
TFA	trifluoroacetic acid	1