X-group (possible homology)

868 mRNA triphosphatase CET1-related

Open in classification tree →

Ligands and drugs

508

Member domains

with ligand contacts (≤ 4 Å)

18.9% of members

with DrugDomain annotations

17.9% of members

with a DrugBank compound

13.8% 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	11	8.2	1.34×	q = 0.30
Homogeneous non-metal compounds	11	3.6	3.05×	not tested
Organic nitrogen compounds	1	0.5	1.87×	not tested
Nucleosides, nucleotides, and analogues	5	4.6	1.08×	not tested
Organoheterocyclic compounds	2	2.6	0.78×	not tested
Organic acids and derivatives	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
DB03896	3PO	Triphosphoric acid	12
DB00131	AMP	Adenosine phosphate	4
DB00156	THR	Threonine	2
DB01860	3AT	Cordycepin Triphosphate	2
DB02527	CMP	Cyclic adenosine monophosphate	2
DB02596	APC	alpha,beta-Methyleneadenosine 5'-triphosphate	2
DB00171	ATP	ATP	1
DB02219	CXS	3-(cyclohexylamino)propanesulfonic acid	1
DB03725	GCP	5'-Guanylylmethylenebisphosphonate	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
MNmetal	MANGANESE (II) ION	20
3PO	TRIPHOSPHATE	13
MGmetal	MAGNESIUM ION	10
CL	CHLORIDE ION	7
NAmetal	SODIUM ION	7
POP	PYROPHOSPHATE 2-	5
SE	SELENIUM ATOM	5
AMP	ADENOSINE MONOPHOSPHATE	4
IHP	INOSITOL HEXAKISPHOSPHATE	4
CAmetal	CALCIUM ION	3
UNL	Unknown ligand	3
3AT	3'-DEOXYADENOSINE-5'-TRIPHOSPHATE	2
ANP	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER	2
APC	DIPHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER	2
CMP	ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE	2
TPP	THIAMINE DIPHOSPHATE	2
UNX	UNKNOWN ATOM OR ION	2
V4E	Thiamine Triphosphate	2
ATP	ADENOSINE-5'-TRIPHOSPHATE	1
CXS	3-CYCLOHEXYL-1-PROPYLSULFONIC ACID	1