X-group (possible homology)

71 Lipoprotein localization factors LolAB

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Ligands and drugs

871

Member domains

with ligand contacts (≤ 4 Å)

10.3% of members

with DrugDomain annotations

8.8% of members

with a DrugBank compound

5.3% 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	10	8.7	1.15×	q = 0.71
Lipids and lipid-like molecules	5	2.0	2.53×	not tested
Homogeneous non-metal compounds	6	3.8	1.57×	not tested
Organic oxygen compounds	3	3.5	0.85×	not tested
Benzenoids	1	1.3	0.77×	not tested
Organic acids and derivatives	2	2.8	0.73×	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
DB03884	PPY	Phenylpyruvic acid	6
DB00141	NAG	N-Acetylglucosamine	3
DB00151	CYS	Cysteine	2
DB02618	NDS	Ethyl Dimethyl Ammonio Propane Sulfonate	2
DB00132	LNL	alpha-Linolenic acid	1
DB02078	PG5	Triglyme	1
DB02210	HEZ	Hexane-1,6-Diol	1
DB02637	OAA	Oxaloacetate Ion	1
DB03193	STE	Stearic acid	1
DB03756	HXA	Doconexent	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
CL	CHLORIDE ION	12
ZNmetal	ZINC ION	9
CAmetal	CALCIUM ION	6
PPY	3-PHENYLPYRUVIC ACID	6
MGmetal	MAGNESIUM ION	3
NAG	2-acetamido-2-deoxy-beta-D-glucopyranose	3
CYS	CYSTEINE	2
IG7	[(2~{S})-3-[(2~{S})-3-azanyl-2-(hexadecanoylamino)-3-oxidanylidene-propyl]sulfanyl-2-hexadecanoyloxy-propyl] hexadecanoate	2
IOD	IODIDE ION	2
NAmetal	SODIUM ION	2
NDS	ETHYL DIMETHYL AMMONIO PROPANE SULFONATE	2
4RF	Tripalmitoylglycerol	1
GLY	GLYCINE	1
HEZ	HEXANE-1,6-DIOL	1
HXA	DOCOSA-4,7,10,13,16,19-HEXAENOIC ACID	1
IRmetal	IRIDIUM ION	1
LNL	ALPHA-LINOLENIC ACID	1
OAA	OXALOACETATE ION	1
P6G	HEXAETHYLENE GLYCOL	1
PG5	1-METHOXY-2-[2-(2-METHOXY-ETHOXY]-ETHANE	1