X-group (possible homology)

5052 Proton glutamate symport protein

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Ligands and drugs

716

Member domains

246

with ligand contacts (≤ 4 Å)

34.4% of members

205

with DrugDomain annotations

28.6% of members

138

with a DrugBank compound

19.3% 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
Hydrocarbons	1	0.0	24×	not tested
Benzenoids	5	0.4	12×	not tested
Organic acids and derivatives	6	0.9	6.55×	not tested
Lipids and lipid-like molecules	4	0.7	6.07×	not tested
Organic nitrogen compounds	1	0.2	5.30×	not tested
Organic oxygen compounds	2	1.2	1.70×	not tested
Homogeneous metal compounds	4	2.9	1.38×	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
DB00128	ASP	Aspartic acid	84
DB00142	GLU	Glutamic acid	12
DB00130	GLN	L-Glutamine	6
DB00141	NAG	N-Acetylglucosamine	6
DB03796	PLM	Palmitic Acid	6
DB00122	CHT	Choline	3
DB00133	SER	Serine	3
DB00151	CYS	Cysteine	3
DB02655	DAS	D-Aspartic Acid	3
DB04531	BCS	S-Benzylcysteine	3
DB04540	CLR	Cholesterol	2
DB00160	—	Alanine	1
DB00174	—	Asparagine	1
DB13146	—	—	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
NAmetal	SODIUM ION	123
ASP	ASPARTIC ACID	93
HGmetal	MERCURY (II) ION	42
6OU	[(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyloxy-propan-2-yl] (~{Z})-octadec-9-enoate	16
Y01	CHOLESTEROL HEMISUCCINATE	15
6Z6	2-Amino-5,6,7,8-tetrahydro-4-(4-methoxyphenyl)-7-(naphthalen-1-yl)-5-oxo-4H-chromene-3-carbonitrile	14
CLR	CHOLESTEROL	14
GLN	GLUTAMINE	14
PC1	1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE	14
DMU	DECYL-BETA-D-MALTOPYRANOSIDE	10
TB1	(3S)-3-(BENZYLOXY)-L-ASPARTIC ACID	10
ALA	ALANINE	9
7O9	(2~{S},3~{S})-2-azanyl-3-[[3-[[4-(trifluoromethyl)phenyl]carbonylamino]phenyl]methoxy]butanedioic acid	7
GJ0	(2S)-2-azanyl-4-[[4-[2-bromanyl-4,5-bis(fluoranyl)phenoxy]phenyl]amino]-4-oxidanylidene-butanoic acid	7
GLU	GLUTAMIC ACID	7
CYS	CYSTEINE	6
DAS	D-ASPARTIC ACID	6
NAG	2-acetamido-2-deoxy-beta-D-glucopyranose	6
PLM	PALMITIC ACID	6
QM5	(2~{S},3~{S})-2-azanyl-3-[[4-[2-(4-methoxyphenyl)hydrazinyl]phenyl]methoxy]butanedioic acid	6