X-group (possible homology)

7515 Alkaline phosphatase-like

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Ligands and drugs

2,539

Member domains

945

with ligand contacts (≤ 4 Å)

37.2% of members

647

with DrugDomain annotations

25.5% of members

422

with a DrugBank compound

16.6% 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.

101

Proteins with classified ligands

Superclasses bound (of 23)

9.5

Superclasses per 20 proteins

broader than 88% of the 256 X-groups with enough proteins to compare (median 7.6)

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
Organic oxygen compounds	50	19.8	2.52×	q < 0.0001
Homogeneous metal compounds	97	48.9	1.98×	q < 0.0001
Homogeneous non-metal compounds	28	21.4	1.31×	q = 0.16
Organic acids and derivatives	14	15.4	0.91×	q = 0.84
Benzenoids	6	7.3	0.82×	q = 0.89
Lipids and lipid-like molecules	6	11.1	0.54×	q = 0.16
Organoheterocyclic compounds	5	15.3	0.33×	q = 4.6e-3
Nucleosides, nucleotides, and analogues	8	27.5	0.29×	q < 0.0001
Organophosphorus compounds	1	0.0	30×	not tested
Organic nitrogen compounds	9	3.2	2.83×	not tested
Mixed metal/non-metal compounds	4	2.1	1.91×	not tested
Organosulfur compounds	3	2.1	1.46×	not tested
Phenylpropanoids and polyketides	2	2.1	0.97×	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
DB00141	NAG	N-Acetylglucosamine	126
DB00131	AMP	Adenosine phosphate	15
DB03994	ETA	Ethanolamine	10
DB00122	CHT	Choline	8
DB01709	2PG	2-phospho-D-glyceric acid	5
DB00529	PPF	Foscarnet	4
DB02835	G16	Alpha-D-Glucose 1,6-Bisphosphate	4
DB03981	UAP	1,4-Dideoxy-5-Dehydro-O2-Sulfo-Glucuronic Acid	4
DB04510	3PG	3-phospho-D-glyceric acid	4
DB01972	5GP	Guanosine-5'-Monophosphate	3
DB02823	PAE	Phosphonoacetic Acid	3
DB03945	PC	N,N,N-Trimethyl-2-(phosphonooxy)ethanaminium	3
DB08834	5D5	Tauroursodeoxycholic acid	3
DB09459	TLA	L-tartaric acid	3
DB00120	PHE	Phenylalanine	2
DB01643	TMP	Thymidine monophosphate	2
DB01738	OPE	Phosphorylcolamine	2
DB01872	ASG	2-deoxy-2-acetamido-beta-D-galactose-4-sulfate	2
DB02596	APC	alpha,beta-Methyleneadenosine 5'-triphosphate	2
DB02837	G4S	4-(Hydrogen sulfate)-beta-D-galactopyranose	2

Most frequently bound compounds

PDB ligand	Name	Domains in contact
ZNmetal	ZINC ION	581
CAmetal	CALCIUM ION	315
CL	CHLORIDE ION	207
MGmetal	MAGNESIUM ION	192
NAG	2-acetamido-2-deoxy-beta-D-glucopyranose	118
MNmetal	MANGANESE (II) ION	96
NAmetal	SODIUM ION	47
IOD	IODIDE ION	34
SCN	THIOCYANATE ION	32
G4S	4-O-sulfo-beta-D-galactopyranose	20
9RN	3,6-anhydro-alpha-D-galactopyranose	18
5JK	7alpha-hydroxycholesterol	15
AMP	ADENOSINE MONOPHOSPHATE	15
GP9	(2R)-2,3-dihydroxypropyl phosphate	14
AUmetal	GOLD ION	12
ETA	ETHANOLAMINE	10
G6S	6-O-sulfo-beta-D-galactopyranose	9
15P	POLYETHYLENE GLYCOL (N=34)	8
CHT	CHOLINE ION	8
BR	BROMIDE ION	7