Protein target profile

PA5304

D-amino acid dehydrogenase small subunit

Genome: NC_002516.2

Gene: dadA1 dadA PA5304 3D evidence: AlphaFold DB model UniProt Q9HTQ0

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Length 432

Pocket druggability 0.739

Ligand records 59

EC / GO 1 / 6

Target summary

Target candidate with partial support; inspect missing evidence before prioritizing.

4 signals

How to read this page

PDB: experimentally determined structures from the Protein Data Bank. These are the strongest structural evidence, but may cover only part of the protein.

AlphaFold DB model: a precomputed predicted structure downloaded from AlphaFold Database/UniProt, not an experiment performed here.

ColabFold model: a predicted structure generated for this workspace; interpret it with coverage and confidence.

pLDDT: confidence score for predicted structures. High values support local geometry; low values mean the region should not drive pocket interpretation.

FPocket / P2Rank: software tools that predict possible ligand-binding pockets on a 3D structure. They are useful screening signals, not experimental validation.

Druggability: a pocket-based estimate of whether a small molecule could bind productively. It does not mean a drug already exists.

PDB ligand: a compound observed in an experimental structure. Direct same-protein records are stronger than homolog-transferred records.

ChEMBL: a public database of measured compound bioactivity. Direct entries are stronger than entries transferred from similar proteins.

ZINC: a purchasable-compound database. Here it marks proposed candidates from chemical similarity, not measured binders.

LigQ / LigQ_2: an internal TPW pipeline step that gathers PDB, ChEMBL, and ZINC ligand evidence for each protein.

Off-target: sequence similarity to proteins we prefer not to hit, such as human proteins or beneficial gut microbiome proteins.

DEG: Database of Essential Genes. A match suggests the protein resembles genes known to be essential in other organisms.

Roary / CoreCruncher: pan-genome tools used to decide whether a gene is core across analyzed strains or accessory/strain-specific.

EC / GO: functional annotations: EC describes enzyme reactions; GO describes biological process, molecular function, or cellular component.

KEGG pathway: a curated metabolic route label used here to group reactions imported from the metabolic model.

Chokepoint: a metabolic reaction that is the only producer or consumer of a metabolite in the imported model.

Overview

Basic information about this protein and its source genome.

Accession: PA5304
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: dadA1 dadA PA5304
Status: annotated
Amino acids: 432
3D evidence: AlphaFold DB model

1.4.99.-

GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. GO:0008718 Catalysis of the reaction: a D-alpha-amino acid + a quinone + H2O = a 2-oxocarboxylate + a quinol + NH4+. GO:0055130 The chemical reactions and pathways resulting in the breakdown of D-alanine. GO:0019478 The chemical reactions and pathways resulting in the breakdown of D-amino acids, the D-enantiomers of amino acids. GO:0016491 Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 25.74
Human E-value: 1.03e-08
Gut microbiome off-target: hit
Essential (DEG): Y
Localization: CytoplasmicMembrane

Selected pocket evidence

The selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

FPocket 0.739

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

MRVLVLGSGVIGTASAYYLARAGFEVVVVDRQDGPALETSFANAGQVSPGYASPWAAPGIPLKAMKWLLEKHAPLAIKLTSDPSQYAWMLQMLRNCTAERYAVNKERMVRLSEYSRDCLDELRAETGIAYEGRTLGTTQLFRTQAQLDAAGKDIAVLERSGVPYEVLDRDGIARVEPALAKVADKLVGALRLPNDQTGDCQLFTTRLAEMAKGLGVEFRFGQNIERLDFAGDRINGVLVNGELLTADHYVLALGSYSPQLLKPLGIKAPVYPLKGYSLTVPITNPEMAPTSTILDETYKVAITRFDQRIRVGGMAEIAGFDLSLNPRRRETLEMITTDLYPEGGDISQATFWTGLRPATPDGTPIVGATRYRNLFLNTGHGTLGWTMACGSGRYLADLMAKKRPQISTEGLDISRYSNSPENAKNAHPAPAH

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 6 GO

Enzyme Commission (EC)

1.4.99.-

Gene Ontology (GO)

GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
GO:0008718 Catalysis of the reaction: a D-alpha-amino acid + a quinone + H2O = a 2-oxocarboxylate + a quinol + NH4+.
GO:0055130 The chemical reactions and pathways resulting in the breakdown of D-alanine.
GO:0019478 The chemical reactions and pathways resulting in the breakdown of D-amino acids, the D-enantiomers of amino acids.
GO:0016491 Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.

Sequence Features

Domain/signature hits from InterPro and related databases.

21 records

Show feature table

Start	End	DB	Term	Name
102	405	Gene3D	G3DSA:3.50.50.60	-
102	405	InterPro	IPR036188	FAD/NAD(P)-binding domain superfamily
410	424	MobiDBLite	mobidb-lite	consensus disorder prediction
3	62	FunFam	G3DSA:3.50.50.60:FF:000020	D-amino acid dehydrogenase
3	398	Pfam	PF01266	FAD dependent oxidoreductase
3	398	InterPro	IPR006076	FAD dependent oxidoreductase
12	16	Phobius	SIGNAL_PEPTIDE_C_REGION	C-terminal region of a signal peptide.
1	411	Hamap	MF_01202	D-amino acid dehydrogenase [dadA].
1	411	InterPro	IPR023080	D-amino acid dehydrogenase DadA
410	432	MobiDBLite	mobidb-lite	consensus disorder prediction
17	432	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1	16	Phobius	SIGNAL_PEPTIDE	Signal peptide region
2	419	PANTHER	PTHR13847	SARCOSINE DEHYDROGENASE-RELATED
1	416	SUPERFAMILY	SSF51905	FAD/NAD(P)-binding domain
1	416	InterPro	IPR036188	FAD/NAD(P)-binding domain superfamily
270	360	SUPERFAMILY	SSF54373	FAD-linked reductases, C-terminal domain
3	54	Gene3D	G3DSA:3.50.50.60	-
3	54	InterPro	IPR036188	FAD/NAD(P)-binding domain superfamily
3	11	Phobius	SIGNAL_PEPTIDE_H_REGION	Hydrophobic region of a signal peptide.
134	363	Gene3D	G3DSA:3.30.9.10	-
1	2	Phobius	SIGNAL_PEPTIDE_N_REGION	N-terminal region of a signal peptide.

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; AlphaFold DB and ColabFold models typically cover the full protein but remain computational predictions.

Loading 3D structure...

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Structural evidence

0 + 1

Experimental PDB entries plus predicted AlphaFold DB or ColabFold models. Click Switch to display a different loaded structure in the viewer.

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold DB PA5304	AlphaFold DB	—	—	full sequence	—	Viewing

Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer

Pockets (FPOCKET)

Showing top-ranked FPocket candidates by druggability. Druggability is color-coded: high (0.7 or higher), medium (0.4 to 0.69), low (below 0.4).

FPOCKET	Sticks	Spheres	Surfaces	Druggability	Labels	Zoom	Positions
4				0.739
1				0.377

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.

59 records

Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 59 via homologs

Structural ligands 9 0 loaded crystals

Bioactive compounds 0 50 ZINC proposed compounds

Drug-like & clean 29 1 PAINS alerts

Best available ligand signal

AAC PDB via homolog 117.1 Da · LogP -0.79 · TPSA 66.4 Open detail RCSB PDB

Detail RCSB PDB AAC PDB via homolog

Detail RCSB PDB B6X PDB via homolog

Detail RCSB PDB DMG PDB via homolog

Detail RCSB PDB FOA PDB via homolog

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
AAC RCSB PDB	1NG3	O31616	117.1 Da LogP -0.79 TPSA 66.4	✓ Ro5	✓ Clean	`CC(=O)NCC(=O)O`
B6X RCSB PDB	6J39	X5IYZ1	248.3 Da LogP 2.62 TPSA 74.6	✓ Ro5	✓ Clean	`CCCCCC[C@H](CC(=O)O)SCC(=O)O`
DMG RCSB PDB	1VRQ	Q50LF2	103.1 Da LogP -0.37 TPSA 40.5	✓ Ro5	✓ Clean	`CN(C)CC(=O)O`
FOA RCSB PDB	2GAG	Q3ZDR0	112.1 Da LogP 0.98 TPSA 50.4	✓ Ro5	✓ Clean	`c1cc(oc1)C(=O)O`
FON RCSB PDB	1VRQ	Q50LF2	473.4 Da LogP -0.73 TPSA 219.8	1 viol.	✓ Clean	`c1cc(ccc1C(=O)N[C@@H](CCC(=O)O)C(=O)O)NC[C@@H]2…`
GOA RCSB PDB	1RYI	O31616	76.1 Da LogP -0.94 TPSA 57.5	✓ Ro5	✓ Clean	`C(C(=O)O)O`
MTG RCSB PDB	3AD7	Q50LF2	105.1 Da LogP -0.90 TPSA 40.1	✓ Ro5	✓ Clean	`CSCC(=O)[O-]`
PEO RCSB PDB	1NG4	O31616	34.0 Da LogP 0.02 TPSA 40.5	✓ Ro5	✓ Clean	`OO`
PYC RCSB PDB	3AD8	Q50LF2	110.1 Da LogP -0.62 TPSA 55.9	✓ Ro5	✓ Clean	`c1cc([nH]c1)C(=O)[O-]`

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).

No ChEMBL hits found through similar proteins.

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
ZINC9212425 ZINC	0.803	473.4 Da LogP -0.73 TPSA 219.8	1 viol.	✓ Clean	`Nc1nc2c(c(=O)[nH]1)N(C=O)[C@@H](CNc1ccc(C(=O)N[…`
ZINC9212426 ZINC	0.803	473.4 Da LogP -0.73 TPSA 219.8	1 viol.	✓ Clean	`Nc1nc2c(c(=O)[nH]1)N(C=O)[C@H](CNc1ccc(C(=O)N[C…`
ZINC9212427 ZINC	0.803	473.4 Da LogP -0.73 TPSA 219.8	1 viol.	✓ Clean	`Nc1nc2c(c(=O)[nH]1)N(C=O)[C@@H](CNc1ccc(C(=O)N[…`
ZINC9212428 ZINC	0.803	473.4 Da LogP -0.73 TPSA 219.8	1 viol.	✓ Clean	`Nc1nc2c(c(=O)[nH]1)N(C=O)[C@H](CNc1ccc(C(=O)N[C…`
ZINC200768381 ZINC	0.727	344.3 Da LogP -0.08 TPSA 153.4	✓ Ro5	✓ Clean	`Nc1nc(=O)c2c([nH]1)NC[C@@H](CNc1ccc(C(=O)O)cc1)…`
ZINC200768411 ZINC	0.727	344.3 Da LogP -0.08 TPSA 153.4	✓ Ro5	✓ Clean	`Nc1nc(=O)c2c([nH]1)NC[C@H](CNc1ccc(C(=O)O)cc1)N…`
ZINC8628600 ZINC	0.716	473.5 Da LogP 0.13 TPSA 202.8	1 viol.	✓ Clean	`CN1c2c([nH]c(N)nc2=O)NC[C@@H]1CCNc1ccc(C(=O)N[C…`
ZINC8628601 ZINC	0.716	473.5 Da LogP 0.13 TPSA 202.8	1 viol.	✓ Clean	`CN1c2c([nH]c(N)nc2=O)NC[C@H]1CCNc1ccc(C(=O)N[C@…`
ZINC8655682 ZINC	0.688	487.5 Da LogP -0.34 TPSA 219.8	1 viol.	✓ Clean	`Nc1nc2c(c(=O)[nH]1)N(C=O)[C@@H](CCNc1ccc(C(=O)N…`
ZINC85394426 ZINC	0.667	206.2 Da LogP 1.80 TPSA 80.6	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C(=O)c2ccco2)o1`
ZINC8997303 ZINC	0.667	487.5 Da LogP 0.07 TPSA 220.1	1 viol.	✓ Clean	`Nc1nc(O)c2c(n1)NC[C@@H](CNc1ccc(C(=O)N[C@@H](CC…`
ZINC8997304 ZINC	0.667	487.5 Da LogP 0.07 TPSA 220.1	1 viol.	✓ Clean	`Nc1nc(O)c2c(n1)NC[C@@H](CNc1ccc(C(=O)N[C@H](CCC…`
ZINC8997305 ZINC	0.667	487.5 Da LogP 0.07 TPSA 220.1	1 viol.	✓ Clean	`Nc1nc(O)c2c(n1)NC[C@H](CNc1ccc(C(=O)N[C@@H](CCC…`
ZINC8997306 ZINC	0.667	487.5 Da LogP 0.07 TPSA 220.1	1 viol.	✓ Clean	`Nc1nc(O)c2c(n1)NC[C@H](CNc1ccc(C(=O)N[C@H](CCCC…`
ZINC2005305 ZINC	0.658	459.5 Da LogP -0.26 TPSA 202.8	1 viol.	✓ Clean	`CN1c2c(nc(N)[nH]c2=O)NC[C@@H]1CNc1ccc(C(=O)N[C@…`
ZINC2572666 ZINC	0.658	459.5 Da LogP -0.26 TPSA 202.8	1 viol.	✓ Clean	`CN1c2c(nc(N)[nH]c2=O)NC[C@H]1CNc1ccc(C(=O)N[C@@…`
ZINC4228266 ZINC	0.658	459.5 Da LogP -0.26 TPSA 202.8	1 viol.	✓ Clean	`CN1c2c(nc(N)[nH]c2=O)NC[C@@H]1CNc1ccc(C(=O)N[C@…`
ZINC4228267 ZINC	0.658	459.5 Da LogP -0.26 TPSA 202.8	1 viol.	✓ Clean	`CN1c2c(nc(N)[nH]c2=O)NC[C@H]1CNc1ccc(C(=O)N[C@H…`
ZINC2377216 ZINC	0.633	216.3 Da LogP 2.52 TPSA 74.6	✓ Ro5	✓ Clean	`CCCCCCC(CC(=O)O)CC(=O)O`
ZINC12374887 ZINC	0.630	216.2 Da LogP 2.21 TPSA 67.5	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C(=O)c2ccco2)cc1`
ZINC169748282 ZINC	0.623	471.4 Da LogP -0.26 TPSA 219.8	1 viol.	✓ Clean	`Nc1nc(=O)c2c([nH]1)NC=C(CNc1ccc(C(=O)N[C@@H](CC…`
ZINC1710770 ZINC	0.615	200.2 Da LogP 2.35 TPSA 47.3	✓ Ro5	Alert	`O=C(C(=O)c1ccco1)c1ccccc1`
ZINC8655681 ZINC	0.613	487.5 Da LogP 0.07 TPSA 220.1	1 viol.	✓ Clean	`Nc1nc(O)c2c(n1)NC[C@@H](CCNc1ccc(C(=O)N[C@@H](C…`
ZINC8655685 ZINC	0.613	487.5 Da LogP 0.07 TPSA 220.1	1 viol.	✓ Clean	`Nc1nc(O)c2c(n1)NC[C@H](CCNc1ccc(C(=O)N[C@H](CCC…`
ZINC8667682 ZINC	0.613	487.5 Da LogP 0.07 TPSA 220.1	1 viol.	✓ Clean	`Nc1nc(O)c2c(n1)NC[C@@H](CCNc1ccc(C(=O)N[C@H](CC…`
ZINC223670610 ZINC	0.610	459.5 Da LogP -0.28 TPSA 194.0	1 viol.	✓ Clean	`CN(c1ccc(C(=O)N[C@@H](CCC(=O)O)C(=O)O)cc1)[C@@H…`
ZINC3870062 ZINC	0.610	457.4 Da LogP -0.52 TPSA 194.0	1 viol.	✓ Clean	`Nc1nc(=O)c2c([nH]1)NC[C@H]1CN(c3ccc(C(=O)N[C@H]…`
ZINC1613560 ZINC	0.607	216.2 Da LogP 2.21 TPSA 67.5	✓ Ro5	✓ Clean	`O=C(O)c1ccccc1C(=O)c1ccco1`
ZINC100477623 ZINC	0.600	204.2 Da LogP 2.33 TPSA 60.4	✓ Ro5	✓ Clean	`O=C(CC(=O)c1ccco1)c1ccco1`
ZINC1637602 ZINC	0.600	443.5 Da LogP 0.62 TPSA 187.5	1 viol.	✓ Clean	`Nc1nc(=O)c2c([nH]1)NC[C@@H](CCc1ccc(C(=O)N[C@@H…`
ZINC2392141 ZINC	0.600	214.3 Da LogP 4.24 TPSA 37.3	✓ Ro5	✓ Clean	`CCCCCC(CCCCC)CC(=O)O`
ZINC6472822 ZINC	0.600	218.2 Da LogP 2.72 TPSA 60.4	✓ Ro5	✓ Clean	`O=C(CCC(=O)c1ccco1)c1ccco1`
ZINC4228235 ZINC	0.597	445.4 Da LogP -0.28 TPSA 211.6	1 viol.	✓ Clean	`Nc1nc2c(c(=O)[nH]1)N[C@H](CNc1ccc(C(=O)N[C@@H](…`
ZINC4228236 ZINC	0.597	445.4 Da LogP -0.28 TPSA 211.6	1 viol.	✓ Clean	`Nc1nc2c(c(=O)[nH]1)N[C@H](CNc1ccc(C(=O)N[C@H](C…`
ZINC4228237 ZINC	0.597	445.4 Da LogP -0.28 TPSA 211.6	1 viol.	✓ Clean	`Nc1nc2c(c(=O)[nH]1)N[C@@H](CNc1ccc(C(=O)N[C@@H]…`
ZINC4228238 ZINC	0.597	445.4 Da LogP -0.28 TPSA 211.6	1 viol.	✓ Clean	`Nc1nc2c(c(=O)[nH]1)N[C@@H](CNc1ccc(C(=O)N[C@H](…`
ZINC2578862 ZINC	0.594	200.3 Da LogP 3.85 TPSA 37.3	✓ Ro5	✓ Clean	`CCCCCCC[C@H](CC)CC(=O)O`
ZINC59199046 ZINC	0.594	200.3 Da LogP 3.85 TPSA 37.3	✓ Ro5	✓ Clean	`CCCCCCC[C@@H](CC)CC(=O)O`
ZINC156403 ZINC	0.593	274.3 Da LogP 1.47 TPSA 66.9	✓ Ro5	✓ Clean	`O=C(c1ccco1)N1CCN(C(=O)c2ccco2)CC1`
ZINC8536462 ZINC	0.587	473.4 Da LogP -0.73 TPSA 219.8	1 viol.	✓ Clean	`Nc1nc(=O)c2c([nH]1)NC[C@H](CN(C=O)c1ccc(C(=O)N[…`
ZINC19367002 ZINC	0.579	204.2 Da LogP -0.98 TPSA 81.1	✓ Ro5	✓ Clean	`CN(CCN(C)CC(=O)O)CC(=O)O`
ZINC12496906 ZINC	0.577	457.4 Da LogP 0.22 TPSA 202.8	1 viol.	✓ Clean	`CN1C(CNc2ccc(C(=O)N[C@@H](CCC(=O)O)C(=O)O)cc2)=…`
ZINC983943 ZINC	0.577	360.3 Da LogP 4.16 TPSA 90.6	✓ Ro5	✓ Clean	`O=C(c1cc(C(=O)c2ccco2)cc(C(=O)c2ccco2)c1)c1ccco1`
ZINC106891773 ZINC	0.571	204.2 Da LogP 2.65 TPSA 63.6	✓ Ro5	✓ Clean	`O=C(/C=C(\O)c1ccco1)c1ccco1`
ZINC19364891 ZINC	0.571	204.2 Da LogP -0.98 TPSA 81.1	✓ Ro5	✓ Clean	`CN(C)CCN(CC(=O)O)CC(=O)O`
ZINC49815930 ZINC	0.567	216.2 Da LogP 2.21 TPSA 67.5	✓ Ro5	✓ Clean	`O=C(O)c1cccc(C(=O)c2ccco2)c1`
ZINC100305273 ZINC	0.563	286.5 Da LogP 4.91 TPSA 57.5	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC[C@H](O)CC(=O)O`
ZINC100305277 ZINC	0.563	286.5 Da LogP 4.91 TPSA 57.5	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC[C@@H](O)CC(=O)O`
ZINC32838984 ZINC	0.563	272.4 Da LogP 4.52 TPSA 57.5	✓ Ro5	✓ Clean	`CCCCCCCCCCCCC[C@@H](O)CC(=O)O`
ZINC59658579 ZINC	0.563	214.3 Da LogP 4.24 TPSA 37.3	✓ Ro5	✓ Clean	`CCCCCCCCC[C@@H](C)CC(=O)O`

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.