X-group (possible homology)

5048 Aquaporin-like

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Ligands and drugs

966

Member domains

240

with ligand contacts (≤ 4 Å)

24.8% of members

210

with DrugDomain annotations

21.7% of members

with a DrugBank compound

7.0% 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.

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	8	7.7	1.03×	q = 1.00
Lipids and lipid-like molecules	9	1.8	5.12×	not tested
Benzenoids	1	1.2	0.87×	not tested
Organic oxygen compounds	2	3.1	0.64×	not tested
Homogeneous non-metal compounds	2	3.4	0.59×	not tested
Organoheterocyclic compounds	1	2.4	0.41×	not tested
Organic acids and derivatives	1	2.4	0.41×	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	11
DB02451	BNG	B-nonylglucoside	8
DB04327	PEE	Phosphatidylethanolamine	7
DB03152	BGL	B-2-Octylglucoside	5
DB04510	3PG	3-phospho-D-glyceric acid	2
DB07349	AGA	(1S)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PENTANOYLOXY)METHYL]ETHYL OCTANOATE	2
DB07923	HSG	octyl alpha-L-altropyranoside	2
DB00819	—	Acetazolamide	1
DB07924	HSH	octyl beta-D-galactopyranoside	1
DB09020	—	—	1
DB09338	—	—	1
DB11365	—	—	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
CDmetal	CADMIUM ION	30
PS6	O-[(S)-{[(2S)-2-(hexanoyloxy)-3-(tetradecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-D-serine	16
CLR	CHOLESTEROL	15
HGmetal	MERCURY (II) ION	14
HV6	(Z)-4,4,5,5,5-pentakis(fluoranyl)-1-(4-methoxy-2-oxidanyl-phenyl)-3-oxidanyl-pent-2-en-1-one	10
CL	CHLORIDE ION	9
CDL	CARDIOLIPIN	8
NAmetal	SODIUM ION	8
T60	ethyl 4-[(4-pyrazol-1-ylphenyl)methylcarbamoylamino]benzoate	8
PEE	1,2-dioleoyl-sn-glycero-3-phosphoethanolamine	7
BNG	nonyl beta-D-glucopyranoside	6
ZNmetal	ZINC ION	6
BGL	2-O-octyl-beta-D-glucopyranose	5
PNT	1,5-BIS(4-AMIDINOPHENOXY)PENTANE	5
R7M	(2R)-2-hydroxy-7-methoxy-2-(pentafluoroethyl)-2,3-dihydro-4H-1-benzopyran-4-one	5
L1U	[(4~{R})-2-[4-[[4,6-bis(azanyl)-1,3,5-triazin-2-yl]amino]phenyl]-1,3,2-dithiarsolan-4-yl]methanol	4
3PG	3-PHOSPHOGLYCERIC ACID	2
AGA	(1S)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PENTANOYLOXY)METHYL]ETHYL OCTANOATE	2
HSG	octyl alpha-L-altropyranoside	2
HSH	octyl beta-D-galactopyranoside	2