X-group (possible homology)

167 Ribosomal protein S7

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Ligands and drugs

3,521

Member domains

316

with ligand contacts (≤ 4 Å)

9.0% of members

181

with DrugDomain annotations

5.1% of members

with a DrugBank compound

0.3% 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
Homogeneous metal compounds	12	6.3	1.91×	q = 3.2e-3
Organic acids and derivatives	2	2.0	1.01×	not tested
Organic oxygen compounds	1	2.6	0.39×	not tested
Nucleosides, nucleotides, and analogues	1	3.5	0.28×	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
DB00161	VAL	Valine	5
DB00131	A	Adenosine phosphate	1
DB03685	U	Uridine monophosphate	1
DB11638	—	—	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
MGmetal	MAGNESIUM ION	272
Kmetal	POTASSIUM ION	18
UNX	UNKNOWN ATOM OR ION	9
PCY	Pactamycin	6
OHX	osmium (III) hexammine	5
NAmetal	SODIUM ION	4
WO2	OCTADECATUNGSTENYL DIPHOSPHATE	3
UAM	Amicoumacin A	2
YAT	emetine	2
KSG	(1S,2R,3S,4R,5S,6S)-2,3,4,5,6-PENTAHYDROXYCYCLOHEXYL2-AMINO-4-{[CARBOXY(IMINO)METHYL]AMINO}-2,3,4,6-TETRADEOXY-ALPHA-D-ARABINO-HEXOPYRANOSIDE	1
N	ANY 5'-MONOPHOSPHATE NUCLEOTIDE	1
T1C	TIGECYCLINE	1