X-group (possible homology)

308 ClpS-like

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Ligands and drugs

1,540

Member domains

114

with ligand contacts (≤ 4 Å)

7.4% of members

with DrugDomain annotations

4.7% of members

with a DrugBank compound

2.1% 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	10	7.3	1.38×	q = 0.26
Mixed metal/non-metal compounds	1	0.3	3.22×	not tested
Homogeneous non-metal compounds	7	3.2	2.20×	not tested
Organic nitrogen compounds	1	0.5	2.12×	not tested
Organic acids and derivatives	2	2.3	0.87×	not tested
Organic oxygen compounds	2	3.0	0.68×	not tested
Organoheterocyclic compounds	1	2.3	0.44×	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
DB03380	TYC	L-tyrosinamide	4
DB04029	NFA	Phenylalanylamide	4
DB00120	PHE	Phenylalanine	1
DB00160	ALA	Alanine	1
DB04119	TBR	Hexatantalum Dodecabromide	1
DB09459	TLA	L-tartaric acid	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
CDmetal	CADMIUM ION	36
CL	CHLORIDE ION	26
MGmetal	MAGNESIUM ION	23
NImetal	NICKEL (II) ION	12
NFA	PHENYLALANINE AMIDE	4
TYC	L-TYROSINAMIDE	4
YBT	BIS-(2-HYDROXYETHYL)AMINO-TRIS(HYDROXYMETHYL)METHANE YTTRIUM	4
ALA	ALANINE	3
PHE	PHENYLALANINE	3
ZNmetal	ZINC ION	3
ARG	ARGININE	2
COmetal	COBALT (II) ION	2
LCZ	(2S)-2-amino-4-methylpentanal	2
TBR	HEXATANTALUM DODECABROMIDE	2
THR	THREONINE	2
TYR	TYROSINE	2
AMV	methyl 2-acetamido-3-O-[(1R)-1-carboxyethyl]-2-deoxy-beta-D-glucopyranoside	1
TLA	L(+)-TARTARIC ACID	1
Y1metal	YTTRIUM ION	1