X-group (possible homology)

283 Creatinase/aminopeptidase-like

Open in classification tree →

Ligands and drugs

3,371

Member domains

576

with ligand contacts (≤ 4 Å)

17.1% of members

552

with DrugDomain annotations

16.4% of members

348

with a DrugBank compound

10.3% 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)

9.1

Superclasses per 20 proteins

broader than 81% 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 acids and derivatives	23	9.6	2.39×	q < 0.0001
Homogeneous metal compounds	51	30.5	1.67×	q < 0.0001
Homogeneous non-metal compounds	14	13.4	1.05×	q = 0.92
Organoheterocyclic compounds	8	9.6	0.84×	q = 0.79
Organic oxygen compounds	9	12.4	0.73×	q = 0.42
Nucleosides, nucleotides, and analogues	9	17.2	0.52×	q = 0.04
Lipids and lipid-like molecules	3	6.9	0.43×	q = 0.21
Organosulfur compounds	3	1.3	2.35×	not tested
Benzenoids	6	4.5	1.32×	not tested
Organic nitrogen compounds	2	2.0	1.01×	not tested
Mixed metal/non-metal compounds	1	1.3	0.77×	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
DB00172	PRO	Proline	40
DB00145	GLY	Glycine	28
DB14522	OH	Hydroxide ion	20
DB00134	MET	Methionine	19
DB00131	AMP	Adenosine phosphate	11
DB02088	NLP	Norleucine Phosphonate	9
DB02596	APC	alpha,beta-Methyleneadenosine 5'-triphosphate	8
DB00149	LEU	Leucine	7
DB02579	AKR	Acrylic Acid	7
DB00171	ATP	ATP	6
DB02694	PAJ	Pantoyl Adenylate	6
DB03085	GOA	Glycolic acid	6
DB00160	ALA	Alanine	5
DB03900	TBU	tert-butanol	5
DB08633	TN4	TNP-470	5
DB03345	BME	Mercaptoethanol	4
DB04324	OVA	Ovalicin	4
DB02640	FUG	Fumagillin	3
DB03107	BAL	beta-Alanine	3
DB00118	SAM	Ademetionine	2

Most frequently bound compounds

PDB ligand	Name	Domains in contact
MNmetal	MANGANESE (II) ION	209
NAmetal	SODIUM ION	99
COmetal	COBALT (II) ION	92
PRO	PROLINE	41
ZNmetal	ZINC ION	39
MGmetal	MAGNESIUM ION	37
CL	CHLORIDE ION	30
Kmetal	POTASSIUM ION	30
GLY	GLYCINE	28
FEmetal	FE (III) ION	26
CAmetal	CALCIUM ION	20
MET	METHIONINE	20
OH	HYDROXIDE ION	20
AMP	ADENOSINE MONOPHOSPHATE	11
NLP	(1-AMINO-PENTYL)-PHOSPHONIC ACID	9
AKR	ACRYLIC ACID	8
APC	DIPHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER	8
LEU	LEUCINE	7
NImetal	NICKEL (II) ION	7
ANP	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER	6