Protein profile

PA1518

5-hydroxyisourate hydrolase

Genome: NC_002516.2

Gene: PA1518 Structure source: AlphaFold UniProt Q9I3J5

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Amino acids 126

Annotations 3

Features 20

PDB binders 3

Overview

Basic information about this protein and its source genome.

Accession: PA1518
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: PA1518
Status: annotated
Amino acids: 126
Structure source: AlphaFold

3.5.2.17

GO:0033971 Catalysis of the reaction: 5-hydroxyisourate + H2O = 5-hydroxy-2-oxo-4-ureido-2,5-dihydro-1H-imidazole-5-carboxylate + H+. GO:0006144 The chemical reactions and pathways involving purine nucleobases, one of the two classes of nitrogen-containing ring compounds found in DNA and RNA, which include adenine and guanine.

Target profile

Computed evidence for target prioritization.

Human off-target: No hit
Gut microbiome off-target: hit
Essential (DEG): N
Localization: Unknown

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 2 GO

Enzyme Commission (EC)

3.5.2.17

Gene Ontology (GO)

GO:0033971 Catalysis of the reaction: 5-hydroxyisourate + H2O = 5-hydroxy-2-oxo-4-ureido-2,5-dihydro-1H-imidazole-5-carboxylate + H+.
GO:0006144 The chemical reactions and pathways involving purine nucleobases, one of the two classes of nitrogen-containing ring compounds found in DNA and RNA, which include adenine and guanine.

Sequence Features

Domain/signature hits from InterPro and related databases.

20 records

Show feature table

Start	End	DB	Term	Name
7	126	FunFam	G3DSA:2.60.40.180:FF:000005	5-hydroxyisourate hydrolase
109	121	ProSitePatterns	PS00769	Transthyretin signature 2.
109	121	InterPro	IPR023419	Transthyretin, conserved site
13	125	Pfam	PF00576	HIUase/Transthyretin family
13	125	InterPro	IPR023416	Transthyretin/hydroxyisourate hydrolase domain
11	126	NCBIfam	TIGR02962	hydroxyisourate hydrolase
11	126	InterPro	IPR014306	Hydroxyisourate hydrolase
11	126	CDD	cd05822	TLP_HIUase
6	126	SUPERFAMILY	SSF49472	Transthyretin (synonym: prealbumin)
6	126	InterPro	IPR036817	Transthyretin/hydroxyisourate hydrolase domain superfamily
16	31	ProSitePatterns	PS00768	Transthyretin signature 1.
16	31	InterPro	IPR023418	Transthyretin, thyroxine binding site
5	126	Gene3D	G3DSA:2.60.40.180	Transthyretin/hydroxyisourate hydrolase domain
5	126	InterPro	IPR036817	Transthyretin/hydroxyisourate hydrolase domain superfamily
9	126	PANTHER	PTHR10395	URICASE AND TRANSTHYRETIN-RELATED
9	126	InterPro	IPR023416	Transthyretin/hydroxyisourate hydrolase domain
104	126	PRINTS	PR00189	Transthyretin signature
104	126	InterPro	IPR000895	Transthyretin/hydroxyisourate hydrolase
12	32	PRINTS	PR00189	Transthyretin signature
12	32	InterPro	IPR000895	Transthyretin/hydroxyisourate hydrolase

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.

No pockets are loaded yet for the displayed AlphaFold model PA1518 structure. Run experimental pocket backfill to show FPocket/P2Rank overlays on this structure.

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Structural evidence

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Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold PA1518	AlphaFold	—	—	full sequence	—	Viewing

Ligand evidence

Ligands grouped by evidence source. PDB ligands keep the source crystal visible, and loaded crystals can be opened directly in the structure viewer.

57 records

Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in TPW, use Open crystal to inspect it in the structure viewer.

No PDB structure with a co-crystallized ligand found for this exact protein.

Structural evidence inferred from similar proteins. The source crystal indicates where the ligand was observed; the UniProt column identifies the homologous protein carrying that ligand.

Ligand	Source crystal	UniProt (homolog)	MW · LogP · TPSA	Lipinski	PAINS	SMILES
AZA	2H0F	O32142	153.1 Da LogP -1.67 TPSA 107.3	✓ Ro5	✓ Clean	`c12c([nH]nn1)NC(=O)NC2=O`
T44	3Q1E	Q06S87-2	776.9 Da LogP 4.56 TPSA 92.8	1 viol.	✓ Clean	`c1c(cc(c(c1I)Oc2cc(c(c(c2)I)O)I)I)C[C@@H](C(=O)…`
URN	2H0J	O32142	142.1 Da LogP -1.77 TPSA 117.8	✓ Ro5	✓ Clean	`C1(=C(NC(=O)NC1=O)N)N`

Experimental bioactivity from ChEMBL measured directly on this protein. Score = pchembl (−log Ki/IC₅₀; higher = more potent).

No ChEMBL bioactivity data found for this exact protein.

Bioactivity inferred from similar proteins in ChEMBL. Score = pchembl (−log Ki/IC₅₀; higher = more potent).

Ligand	UniProt (homolog)	pchembl	MW · LogP · TPSA	Lipinski	PAINS	SMILES
16V	A0A8I3NFK0	—	292.3 Da LogP 2.88 TPSA 75.2	✓ Ro5	✓ Clean	`Cc1c(c(n[nH]1)C)CCCOc2cc(ccc2F)C(=O)O`
3MI	A0A8I3NFK0	—	308.1 Da LogP 4.50 TPSA 63.3	✓ Ro5	✓ Clean	`c1cc2c(cc1C(=O)O)oc(n2)c3cc(cc(c3)Cl)Cl`
CHEMBL5174982	P07309	—	2479.0 Da LogP 8.07 TPSA 732.8	4 viol.	✓ Clean	`CC[C@H](C)[C@@H]([C@@H](CC(=O)N1CCC[C@H]1[C@H](…`
CHEMBL5180672	P07309	—	2608.1 Da LogP 7.42 TPSA 799.2	4 viol.	✓ Clean	`CC[C@H](C)[C@@H]([C@@H](CC(=O)N1CCC[C@H]1[C@H](…`

Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).

Ligand	Tanimoto	MW · LogP · TPSA	Lipinski	PAINS	SMILES
ZINC43206271	1.000	308.1 Da LogP 4.50 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc2nc(-c3cc(Cl)cc(Cl)c3)oc2c1`
ZINC98207925	1.000	292.3 Da LogP 2.88 TPSA 75.2	✓ Ro5	✓ Clean	`Cc1n[nH]c(C)c1CCCOc1cc(C(=O)O)ccc1F`
ZINC33420221	0.795	273.7 Da LogP 3.85 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc2nc(-c3ccc(Cl)cc3)oc2c1`
ZINC3861723	0.750	433.0 Da LogP 1.56 TPSA 83.5	✓ Ro5	✓ Clean	`N[C@@H](Cc1cc(I)c(O)c(I)c1)C(=O)O`
ZINC3875424	0.750	433.0 Da LogP 1.56 TPSA 83.5	✓ Ro5	✓ Clean	`N[C@H](Cc1cc(I)c(O)c(I)c1)C(=O)O`
ZINC33420214	0.718	239.2 Da LogP 3.19 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc2nc(-c3ccccc3)oc2c1`
ZINC1532902	0.700	206.2 Da LogP -0.86 TPSA 132.1	✓ Ro5	✓ Clean	`O=C(O)CC[C@@](O)(CC(=O)O)C(=O)O`
ZINC2018106	0.700	206.2 Da LogP -0.86 TPSA 132.1	✓ Ro5	✓ Clean	`O=C(O)CC[C@](O)(CC(=O)O)C(=O)O`
ZINC33420216	0.683	253.3 Da LogP 3.50 TPSA 63.3	✓ Ro5	✓ Clean	`Cc1ccc(-c2nc3ccc(C(=O)O)cc3o2)cc1`
ZINC1713868	0.675	321.1 Da LogP 1.26 TPSA 83.6	✓ Ro5	✓ Clean	`Cc1cc(C[C@H](N)C(=O)O)cc(I)c1O`
ZINC17353379	0.675	321.1 Da LogP 1.26 TPSA 83.6	✓ Ro5	✓ Clean	`Cc1cc(C[C@@H](N)C(=O)O)cc(I)c1O`
ZINC33420219	0.667	257.2 Da LogP 3.33 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc2nc(-c3ccc(F)cc3)oc2c1`
ZINC38237375	0.667	318.1 Da LogP 3.96 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc2nc(-c3ccc(Br)cc3)oc2c1`
ZINC3593496	0.652	206.2 Da LogP -1.16 TPSA 121.1	✓ Ro5	✓ Clean	`COC(=O)C[C@@](O)(CC(=O)O)C(=O)O`
ZINC3593497	0.652	206.2 Da LogP -1.16 TPSA 121.1	✓ Ro5	✓ Clean	`COC(=O)C[C@](O)(CC(=O)O)C(=O)O`
ZINC89282523	0.642	292.3 Da LogP 2.57 TPSA 64.2	✓ Ro5	✓ Clean	`COc1cc(C(=O)OCCc2c(C)n[nH]c2C)ccc1F`
ZINC2494502	0.638	248.3 Da LogP 3.18 TPSA 37.9	✓ Ro5	✓ Clean	`Cc1n[nH]c(C)c1CCCOc1ccccc1F`
ZINC33420222	0.636	273.7 Da LogP 3.85 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc2nc(-c3ccccc3Cl)oc2c1`
ZINC33420225	0.636	269.3 Da LogP 3.20 TPSA 72.6	✓ Ro5	✓ Clean	`COc1ccc(-c2nc3ccc(C(=O)O)cc3o2)cc1`
ZINC20158781	0.628	273.7 Da LogP 3.85 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc2oc(-c3ccc(Cl)cc3)nc2c1`
ZINC14686440	0.625	436.4 Da LogP -2.64 TPSA 247.9	1 viol.	✓ Clean	`O=C(O)C[C@](O)(CC(=O)NCCCCNC(=O)C[C@@](O)(CC(=O…`
ZINC14686442	0.625	436.4 Da LogP -2.64 TPSA 247.9	1 viol.	✓ Clean	`O=C(O)C[C@@](O)(CC(=O)NCCCCNC(=O)C[C@](O)(CC(=O…`
ZINC14686444	0.625	436.4 Da LogP -2.64 TPSA 247.9	1 viol.	✓ Clean	`O=C(O)C[C@@](O)(CC(=O)NCCCCNC(=O)C[C@@](O)(CC(=…`
ZINC2484811	0.625	262.3 Da LogP 3.57 TPSA 37.9	✓ Ro5	✓ Clean	`Cc1n[nH]c(C)c1CCCCOc1ccccc1F`
ZINC20158774	0.622	273.7 Da LogP 3.85 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc2oc(-c3cccc(Cl)c3)nc2c1`
ZINC70461568	0.614	272.7 Da LogP 3.25 TPSA 69.1	✓ Ro5	✓ Clean	`NC(=O)c1ccc2nc(-c3ccc(Cl)cc3)oc2c1`
ZINC2497263	0.612	276.4 Da LogP 3.96 TPSA 37.9	✓ Ro5	✓ Clean	`Cc1n[nH]c(C)c1CCCCCOc1ccccc1F`
ZINC3106058	0.612	290.4 Da LogP 4.35 TPSA 37.9	✓ Ro5	✓ Clean	`Cc1n[nH]c(C)c1CCCCCCOc1ccccc1F`
ZINC20423992	0.610	279.1 Da LogP 4.38 TPSA 52.0	✓ Ro5	✓ Clean	`Nc1ccc2nc(-c3cc(Cl)cc(Cl)c3)oc2c1`
ZINC1506399247	0.607	369.4 Da LogP 2.12 TPSA 103.4	✓ Ro5	✓ Clean	`Cc1n[nH]c(C)c1CCCN(C)S(=O)(=O)c1cc(C(=O)O)ccc1F`
ZINC16429695	0.591	273.7 Da LogP 3.85 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(-c2nc3cc(Cl)ccc3o2)cc1`
ZINC73642031	0.591	254.2 Da LogP 2.78 TPSA 89.3	✓ Ro5	✓ Clean	`Nc1ccc2nc(-c3ccc(C(=O)O)cc3)oc2c1`
ZINC16398743	0.587	273.7 Da LogP 3.85 TPSA 63.3	✓ Ro5	✓ Clean	`O=C(O)c1cccc(-c2nc3cc(Cl)ccc3o2)c1`
ZINC95732457	0.587	212.2 Da LogP 2.70 TPSA 46.5	✓ Ro5	✓ Clean	`CCCCOc1cc(C(=O)O)ccc1F`
ZINC95732465	0.587	226.2 Da LogP 3.09 TPSA 46.5	✓ Ro5	✓ Clean	`CCCCCOc1cc(C(=O)O)ccc1F`
ZINC13560821	0.585	447.0 Da LogP 1.64 TPSA 72.5	✓ Ro5	✓ Clean	`COC(=O)[C@H](N)Cc1cc(I)c(O)c(I)c1`
ZINC15119189	0.585	447.0 Da LogP 1.64 TPSA 72.5	✓ Ro5	✓ Clean	`COC(=O)[C@@H](N)Cc1cc(I)c(O)c(I)c1`
ZINC35804133	0.583	269.3 Da LogP 3.20 TPSA 72.6	✓ Ro5	✓ Clean	`COc1cccc(-c2nc3ccc(C(=O)O)cc3o2)c1`
ZINC14084365	0.580	299.2 Da LogP 4.34 TPSA 37.9	✓ Ro5	✓ Clean	`Cc1n[nH]c(C)c1CCCOc1ccc(Cl)cc1Cl`
ZINC2502341	0.580	278.8 Da LogP 4.00 TPSA 37.9	✓ Ro5	✓ Clean	`Cc1cc(Cl)ccc1OCCCc1c(C)n[nH]c1C`
ZINC216744338	0.578	309.1 Da LogP 4.71 TPSA 69.2	✓ Ro5	✓ Clean	`O=[N+]([O-])c1ccc2nc(-c3cc(Cl)cc(Cl)c3)oc2c1`
ZINC33420229	0.578	229.2 Da LogP 2.79 TPSA 76.5	✓ Ro5	✓ Clean	`O=C(O)c1ccc2nc(-c3ccco3)oc2c1`
ZINC13398039	0.577	234.2 Da LogP -0.38 TPSA 121.1	✓ Ro5	✓ Clean	`CC(C)OC(=O)C[C@](O)(CC(=O)O)C(=O)O`
ZINC2528012	0.577	234.2 Da LogP -0.38 TPSA 121.1	✓ Ro5	✓ Clean	`CC(C)OC(=O)C[C@@](O)(CC(=O)O)C(=O)O`
ZINC28964525	0.575	264.1 Da LogP 4.80 TPSA 26.0	✓ Ro5	✓ Clean	`Clc1cc(Cl)cc(-c2nc3ccccc3o2)c1`
ZINC4513897	0.575	432.0 Da LogP 1.43 TPSA 89.3	✓ Ro5	✓ Clean	`Nc1c(I)cc(C[C@H](N)C(=O)O)cc1I`
ZINC4513900	0.575	432.0 Da LogP 1.43 TPSA 89.3	✓ Ro5	✓ Clean	`Nc1c(I)cc(C[C@@H](N)C(=O)O)cc1I`
ZINC70461565	0.574	287.7 Da LogP 3.93 TPSA 52.3	✓ Ro5	✓ Clean	`COC(=O)c1ccc2nc(-c3ccc(Cl)cc3)oc2c1`
ZINC20158794	0.571	283.2 Da LogP 2.89 TPSA 100.6	✓ Ro5	✓ Clean	`O=C(O)c1ccc(-c2nc3cc(C(=O)O)ccc3o2)cc1`
ZINC4744407	0.571	461.0 Da LogP 2.03 TPSA 72.5	✓ Ro5	✓ Clean	`CCOC(=O)[C@H](N)Cc1cc(I)c(O)c(I)c1`

PDB and ChEMBL records on this protein are shown in full. ChEMBL records from similar proteins are capped at the top 100 per protein (by pchembl) and ZINC at the top 50 (Tanimoto ≥ 0.5). ADME columns are descriptor-based screening flags, not experimental toxicity results.