X-group (possible homology)

1175 Apolipoprotein N-acyltransferase transmembrane domain

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Ligands and drugs

118

Member domains

with ligand contacts (≤ 4 Å)

19.5% of members

with DrugDomain annotations

17.8% of members

with a DrugBank compound

7.6% 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	48×	not tested
Lipids and lipid-like molecules	3	0.3	9.11×	not tested
Organic oxygen compounds	1	0.6	1.70×	not tested
Homogeneous non-metal compounds	1	0.6	1.57×	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
DB02580	PG6	Pentaglyme	2
DB03796	PLM	Palmitic Acid	2

Most frequently bound compounds

PDB ligand	Name	Domains in contact
OLC	(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	10
PG5	1-METHOXY-2-[2-(2-METHOXY-ETHOXY]-ETHANE	3
6OU	[(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyloxy-propan-2-yl] (~{Z})-octadec-9-enoate	2
CL	CHLORIDE ION	2
HTG	heptyl 1-thio-beta-D-glucopyranoside	2
PG6	1-(2-METHOXY-ETHOXY)-2-{2-[2-(2-METHOXY-ETHOXY]-ETHOXY}-ETHANE	2
PLM	PALMITIC ACID	2
PTY	PHOSPHATIDYLETHANOLAMINE	2
QGT	~{N}-tridecylmethanethioamide	2
A1H2K	7.10 monoacylglycerol (S-form)	1
D12	DODECANE	1
IG7	[(2~{S})-3-[(2~{S})-3-azanyl-2-(hexadecanoylamino)-3-oxidanylidene-propyl]sulfanyl-2-hexadecanoyloxy-propyl] hexadecanoate	1
IRY	[(2~{S})-2,3-bis(oxidanyl)propyl] 8-hexylselanyloctanoate	1
LH9	[(2~{S})-2,3-bis(oxidanyl)propyl] heptadec-9-enoate	1
LNK	PENTANE	1
OJF	[(2~{R})-3-[(2~{R})-3-[[(2~{R})-1-[[(2~{R})-1-[[(2~{R})-6-[(2-aminophenyl)carbonylamino]-1-azanyl-1-oxidanylidene-hexan-2-yl]amino]-3-oxidanyl-1-oxidanylidene-propan-2-yl]amino]-3-oxidanyl-1-oxidanylidene-propan-2-yl]amino]-2-(hexadecanoylamino)-3-oxidanylidene-propyl]sulfanyl-2-hexadecanoyloxy-propyl] hexadecanoate	1
OLB	(2S)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	1
OU9	[(2~{S})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-oxidanyl-propan-2-yl] (~{Z})-octadec-9-enoate	1