X-group (possible homology)

3174 Ribosomal protein L14-like

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Ligands and drugs

4,566

Member domains

1,013

with ligand contacts (≤ 4 Å)

22.2% of members

651

with DrugDomain annotations

14.3% of members

with a DrugBank compound

0.9% 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)

5.2

Superclasses per 20 proteins

narrower than 80% of the 256 X-groups with enough proteins to compare (median 7.6)

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	38	21.3	1.78×	q < 0.0001
Organic oxygen compounds	4	8.6	0.46×	q = 0.13
Homogeneous non-metal compounds	3	9.3	0.32×	q = 0.03
Organic acids and derivatives	1	6.7	0.15×	q = 0.02
Nucleosides, nucleotides, and analogues	1	12.0	0.08×	q < 0.0001
Organoheterocyclic compounds	0	6.7	0	q = 2.8e-3
Mixed metal/non-metal compounds	3	0.9	3.29×	not tested
Organic nitrogen compounds	2	1.4	1.45×	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
DB03566	SPD	Spermidine	4
DB00149	LEU	Leucine	2
DB00479	AKN	Amikacin	2
DB01421	PAR	Paromomycin	2
DB00131	A	Adenosine phosphate	1
DB01917	PUT	Putrescine	1
DB01972	G	Guanosine-5'-Monophosphate	1
DB02494	—	(S)-3-phenyllactic acid	1
DB03403	C	Cytidine-5'-Monophosphate	1
DB03685	U	Uridine monophosphate	1
DB07374	—	—	1
DB08437	—	Puromycin	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
MGmetal	MAGNESIUM ION	935
OHX	osmium (III) hexammine	126
CL	CHLORIDE ION	69
Kmetal	POTASSIUM ION	31
UNX	UNKNOWN ATOM OR ION	14
SPD	SPERMIDINE	13
PUT	1,4-DIAMINOBUTANE	10
SPM	SPERMINE	8
ZNmetal	ZINC ION	8
NAmetal	SODIUM ION	3
OIY	Streptothricin D	3
AKN	(2S)-N-[(1R,2S,3S,4R,5S)-4-[(2R,3R,4S,5S,6R)-6-(aminomethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]oxy-5-azanyl-2-[(2S,3R,4S,5S,6R)-4-azanyl-6-(hydroxymethyl)-3,5-bis(oxidanyl)oxan-2-yl]oxy-3-oxidanyl-cyclohexyl]-4-azanyl-2-oxidanyl-butanamide	2
FEmetal	FE (III) ION	2
PAR	PAROMOMYCIN	2
NMY	NEOMYCIN	1