X-group (possible homology)

3226 Uracil Transporter UraA

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Ligands and drugs

892

Member domains

161

with ligand contacts (≤ 4 Å)

18.0% of members

with DrugDomain annotations

9.1% of members

with a DrugBank compound

7.3% 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	0	7.3	0	q = 2.1e-4
Hydrocarbons	1	0.1	9.68×	not tested
Phenylpropanoids and polyketides	2	0.3	6.50×	not tested
Lipids and lipid-like molecules	7	1.7	4.25×	not tested
Benzenoids	3	1.1	2.77×	not tested
Organoheterocyclic compounds	5	2.3	2.20×	not tested
Organic nitrogen compounds	1	0.5	2.12×	not tested
Organic oxygen compounds	2	3.0	0.68×	not tested
Homogeneous non-metal compounds	2	3.2	0.63×	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
DB04540	CLR	Cholesterol	45
DB00141	NAG	N-Acetylglucosamine	19
DB00936	SAL	Salicylic acid	6
DB02777	PLC	Diundecyl Phosphatidyl Choline	6
DB00126	ASC	Ascorbic acid	2
DB00975	H9F	Dipyridamole	2
DB02134	XAN	Xanthine	2
DB02377	GUN	Guanine	2
DB03419	URA	Uracil	2
DB04552	NFL	Niflumic acid	2
DB02451	BNG	B-nonylglucoside	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
CLR	CHOLESTEROL	61
PIO	[(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate	38
CL	CHLORIDE ION	29
NAG	2-acetamido-2-deoxy-beta-D-glucopyranose	27
PLC	DIUNDECYL PHOSPHATIDYL CHOLINE	22
Y01	CHOLESTEROL HEMISUCCINATE	18
LBN	1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine	15
PC1	1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE	14
AV0	Lauryl Maltose Neopentyl Glycol	10
DMU	DECYL-BETA-D-MALTOPYRANOSIDE	9
NAmetal	SODIUM ION	8
SAL	2-HYDROXYBENZOIC ACID	7
4KU	2,2'-ethane-1,2-diylbis{5-[(sulfanylmethyl)amino]benzenesulfonic acid}	6
PT5	[(2R)-1-octadecanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propan-2-yl] (8Z)-icosa-5,8,11,14-tetraenoate	6
BNG	nonyl beta-D-glucopyranoside	5
4DS	4,4'-Diisothiocyano-2,2'-stilbenedisulfonic acid	4
C14	TETRADECANE	4
D10	DECANE	4
D12	DODECANE	4
HP6	HEPTANE	4