X-group (possible homology)

4279 DisA nucleotide-binding domain

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Ligands and drugs

255

Member domains

110

with ligand contacts (≤ 4 Å)

43.1% of members

with DrugDomain annotations

17.6% of members

with a DrugBank compound

11.8% 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
Organic nitrogen compounds	1	0.2	4.54×	not tested
Nucleosides, nucleotides, and analogues	6	1.9	3.15×	not tested
Homogeneous non-metal compounds	2	1.5	1.35×	not tested
Lipids and lipid-like molecules	1	0.8	1.30×	not tested
Organoheterocyclic compounds	1	1.1	0.94×	not tested
Organic acids and derivatives	1	1.1	0.94×	not tested
Organic oxygen compounds	1	1.4	0.73×	not tested
Homogeneous metal compounds	2	3.4	0.59×	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
DB00171	ATP	ATP	7
DB00131	AMP	Adenosine phosphate	5
DB01860	3AT	Cordycepin Triphosphate	4
DB02596	APC	alpha,beta-Methyleneadenosine 5'-triphosphate	4
DB02175	MLA	Malonic acid	2
DB00173	ADE	Adenine	1
DB00640	ADN	Adenosine	1
DB02210	HEZ	Hexane-1,6-Diol	1
DB08357	P4G	Diethylene glycol diethyl ether	1
DB16833	ADP	Adenosine disphosphate	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
MGmetal	MAGNESIUM ION	31
CL	CHLORIDE ION	21
2BA	(2R,3R,3aS,5R,7aR,9R,10R,10aS,12R,14aR)-2,9-bis(6-amino-9H-purin-9-yl)octahydro-2H,7H-difuro[3,2-d:3',2'-j][1,3,7,9,2,8]tetraoxadiphosphacyclododecine-3,5,10,12-tetrol 5,12-dioxide	9
ATP	ADENOSINE-5'-TRIPHOSPHATE	8
AMP	ADENOSINE MONOPHOSPHATE	5
3AT	3'-DEOXYADENOSINE-5'-TRIPHOSPHATE	4
APC	DIPHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER	4
MNmetal	MANGANESE (II) ION	4
NAmetal	SODIUM ION	4
TJ9	~{N}-[5-(2-azanyl-1,3-thiazol-4-yl)-4-methyl-1,3-thiazol-2-yl]ethanamide	3
47U	N-(pyridin-2-yl)-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)acetamide	2
AJO	2-[cyanomethyl(methyl)amino]-N-(6-methylpyridin-2-yl)ethanamide	2
MLA	MALONIC ACID	2
RB7	N-[(4-bromo-3-methylphenyl)methyl]-2-(methylsulfonyl)ethan-1-amine	2
SY4	~{N}-[5-azanyl-2,4-bis(fluoranyl)phenyl]propane-1-sulfonamide	2
SYV	6-azanyl-3-methyl-1,3-benzoxazol-2-one	2
T9S	ethyl 1,3-dihydro-2H-pyrrolo[3,4-c]pyridine-2-carboxylate	2
TI5	5-methylpyrimidin-4-amine	2
UHL	5-(2-methoxyethyl)-1,3,4-oxadiazol-2-amine	2
UI4	4-pyridin-2-ylphenol	2