X-group (possible homology)

246 Carbon-nitrogen hydrolase-like

Open in classification tree →

Ligands and drugs

6,224

Member domains

1,497

with ligand contacts (≤ 4 Å)

24.1% of members

1,329

with DrugDomain annotations

21.4% of members

874

with a DrugBank compound

14.0% 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.

160

Proteins with classified ligands

Superclasses bound (of 23)

9.3

Superclasses per 20 proteins

broader than 85% 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
Organic nitrogen compounds	10	5.0	1.99×	q = 0.06
Homogeneous metal compounds	136	77.4	1.76×	q < 0.0001
Homogeneous non-metal compounds	38	34.0	1.12×	q = 0.52
Organic oxygen compounds	33	31.4	1.05×	q = 0.83
Organic acids and derivatives	21	24.4	0.86×	q = 0.59
Lipids and lipid-like molecules	11	17.6	0.63×	q = 0.15
Organoheterocyclic compounds	15	24.3	0.62×	q = 0.07
Nucleosides, nucleotides, and analogues	23	43.6	0.53×	q = 3.7e-4
Benzenoids	6	11.5	0.52×	q = 0.14
Phenylpropanoids and polyketides	6	3.3	1.83×	not tested
Organosulfur compounds	4	3.3	1.23×	not tested
Hydrocarbons	1	1.1	0.91×	not tested
Mixed metal/non-metal compounds	3	3.3	0.91×	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
DB00141	NAG	N-Acetylglucosamine	104
DB01917	PUT	Putrescine	16
DB03854	N2P	Cadaverine	16
DB02676	B3P	2-[3-(2-Hydroxy-1,1-Dihydroxymethyl-Ethylamino)-Propylamino]-2-Hydroxymethyl-Propane-1,3-Diol	15
DB14522	OH	Hydroxide ion	11
DB18267	HEM	Ferroheme	9
DB03148	A12	Adenosine 5'-methylenediphosphate	8
DB00864	FK5	Tacrolimus	7
DB01972	5GP	Guanosine-5'-Monophosphate	7
DB00130	GLN	L-Glutamine	6
DB00131	AMP	Adenosine phosphate	5
DB00142	GLU	Glutamic acid	5
DB03345	BME	Mercaptoethanol	5
DB08845	AKG	Oxogluric acid	5
DB02637	OAA	Oxaloacetate Ion	4
DB02736	ACM	Acetamide	4
DB04161	ROP	Propionamide	4
DB09459	TLA	L-tartaric acid	4
DB00174	ASN	Asparagine	3
DB00640	ADN	Adenosine	3

Most frequently bound compounds

PDB ligand	Name	Domains in contact
MNmetal	MANGANESE (II) ION	393
ZNmetal	ZINC ION	272
MGmetal	MAGNESIUM ION	182
FEmetal	FE (III) ION	154
NAG	2-acetamido-2-deoxy-beta-D-glucopyranose	116
CL	CHLORIDE ION	107
CAmetal	CALCIUM ION	102
NAmetal	SODIUM ION	79
FE2metal	FE (II) ION	31
COmetal	COBALT (II) ION	17
N2H	(4-azanylbutylamino)methanediol	16
N2P	PENTANE-1,5-DIAMINE	16
PUT	1,4-DIAMINOBUTANE	16
B3P	2-[3-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-PROPYLAMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	15
HBX	benzaldehyde	14
BR	BROMIDE ION	12
NImetal	NICKEL (II) ION	12
OH	HYDROXIDE ION	11
OLC	(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	10
D5M	2'-DEOXYADENOSINE-5'-MONOPHOSPHATE	9