Protein profile

VK055_1042

phenylacetic acid degradation protein paaN

Genome: KpATCC43816

Gene: AIK79665.1 paaN Structure source: AlphaFold + ColabFold UniProt A0A0H3GSM6

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Amino acids 681

Annotations 2

Features 21

PDB binders 9

Druggability 0.703

Overview

Basic information about this protein and its source genome.

Accession: VK055_1042
Assembly: Klebsiella pneumoniae subsp. pneumoniae strain ATCC 43816 KPPR1, complete genome
Gene: AIK79665.1 paaN
Status: annotated
Amino acids: 681
Structure source: AlphaFold + ColabFold

GO:0016620 Catalysis of an oxidation-reduction (redox) reaction in which an aldehyde or ketone (oxo) group acts as a hydrogen or electron donor and reduces NAD or NADP. 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 (%): 29.31
Human E-value: 6.3e-06
Gut microbiome off-target: hit
Essential (DEG): N
DEG identity (%): 30.159
Localization: Cytoplasmic
ColabFold pLDDT: 97.02

Selected Druggability evidence

AlphaFold / UniProt model

Selected Druggability is the FPocket score chosen for ranking using the curated structure priority. The 3D viewer may show a different loaded structure, so its visible pockets can differ.

FPocket 0.703

Structure A0A0H3GSM6

Pocket Pocket 19

P2Rank 0.619

Structure A0A0H3GSM6

Pocket Pocket 1

ColabFold model

FPocket 0.198 · Pocket 8

P2Rank 0.485 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 51 / 4744 genomes with a hit

Normalized 0.011

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

2 GO

Gene Ontology (GO)

GO:0016620 Catalysis of an oxidation-reduction (redox) reaction in which an aldehyde or ketone (oxo) group acts as a hydrogen or electron donor and reduces NAD or NADP.
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
4	674	NCBIfam	TIGR02278	phenylacetic acid degradation bifunctional protein PaaZ
4	674	InterPro	IPR011966	Phenylacetic acid degradation protein PaaN
4	511	CDD	cd07128	ALDH_MaoC-N
520	674	FunFam	G3DSA:3.10.129.10:FF:000043	Bifunctional aldehyde dehydrogenase/enoyl-CoA hydratase
2	614	PANTHER	PTHR43111	ALDEHYDE DEHYDROGENASE B-RELATED
525	675	SUPERFAMILY	SSF54637	Thioesterase/thiol ester dehydrase-isomerase
525	675	InterPro	IPR029069	HotDog domain superfamily
5	500	SUPERFAMILY	SSF53720	ALDH-like
5	500	InterPro	IPR016161	Aldehyde/histidinol dehydrogenase
1	261	Gene3D	G3DSA:3.40.605.10	Aldehyde Dehydrogenase; Chain A, domain 1
1	261	InterPro	IPR016162	Aldehyde dehydrogenase, N-terminal
262	467	FunFam	G3DSA:3.40.309.10:FF:000031	Phenylacetic acid degradation protein MaoC
1	261	FunFam	G3DSA:3.40.605.10:FF:000036	Phenylacetic acid degradation protein MaoC
530	676	CDD	cd03452	MaoC_C
22	497	Pfam	PF00171	Aldehyde dehydrogenase family
22	497	InterPro	IPR015590	Aldehyde dehydrogenase domain
536	650	Pfam	PF01575	MaoC like domain
536	650	InterPro	IPR002539	MaoC-like dehydratase domain
519	675	Gene3D	G3DSA:3.10.129.10	Hotdog Thioesterase
262	467	Gene3D	G3DSA:3.40.309.10	Aldehyde Dehydrogenase; Chain A, domain 2
262	467	InterPro	IPR016163	Aldehyde dehydrogenase, C-terminal

3D Structure

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

Loading 3D structure...

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Structural evidence

0 + 2

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

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold AF_A0A0H3GSM6	AlphaFold	—	—	full sequence	—	Viewing
ColabFold VK055_1042	ColabFold	—	—	full sequence	—	Loaded

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
19				0.703
2				0.686
6				0.281

Pockets (P2RANK)

Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).

P2RANK	Score	Probability
1	8.2	0.436
2	6.13	0.304
3	3.16	0.107
4	2.31	0.059
5	1.85	0.036

Pockets (P2RANK)

Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).

P2RANK	Score	Probability
1	8.14	0.433
2	5.73	0.278
3	2.05	0.045
4	1.99	0.043
5	1.86	0.036

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

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
1KA	4I9B	Q56R04	104.1 Da LogP -0.81 TPSA 46.5	✓ Ro5	✓ Clean	`C(COCC=O)O`
7PE	2WOX	Q9HTJ1	310.4 Da LogP 0.10 TPSA 75.6	✓ Ro5	✓ Clean	`CCOCCOCCOCCOCCOCCOCCO`
B3P	4QJE	A0A0H2X0S3	282.3 Da LogP -4.01 TPSA 145.4	1 viol.	✓ Clean	`C(CNC(CO)(CO)CO)CNC(CO)(CO)CO`
CO8	6JQN	P77455	893.7 Da LogP 1.03 TPSA 363.6	3 viol.	✓ Clean	`CCCCCCCC(=O)SCCNC(=O)CCNC(=O)[C@@H](C(C)(C)CO[P…`
COO	6JQO	P77455	835.6 Da LogP -0.76 TPSA 363.6	3 viol.	✓ Clean	`CC=CC(=O)SCCNC(=O)CCNC(=O)[C@H](C(C)(C)CO[P@@](…`
DTT	4CBB	Q9HTJ1	154.3 Da LogP -0.43 TPSA 40.5	✓ Ro5	✓ Clean	`C([C@@H]([C@H](CS)O)O)S`
PE4	4CAZ	Q9HTJ1	354.4 Da LogP 0.11 TPSA 84.8	✓ Ro5	✓ Clean	`CCOCCOCCOCCOCCOCCOCCOCCO`
TOE	2XDR	Q9HTJ1	164.2 Da LogP -0.34 TPSA 47.9	✓ Ro5	✓ Clean	`COCCOCCOCCO`
TXE	4CAZ	Q9HTJ1	667.5 Da LogP -2.95 TPSA 317.6	3 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`

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
ZINC12501520	1.000	458.5 Da LogP -0.88 TPSA 123.5	1 viol.	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC3874716	1.000	414.5 Da LogP -0.90 TPSA 114.3	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC4283769	1.000	238.3 Da LogP -0.96 TPSA 77.4	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCO`
ZINC4521259	1.000	282.3 Da LogP -4.01 TPSA 145.4	1 viol.	✓ Clean	`OCC(CO)(CO)NCCCNC(CO)(CO)CO`
ZINC4521548	1.000	282.3 Da LogP -0.95 TPSA 86.6	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCO`
ZINC5178829	1.000	326.4 Da LogP -0.93 TPSA 95.8	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCO`
ZINC5178830	1.000	370.4 Da LogP -0.91 TPSA 105.1	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC115086873	0.688	209.2 Da LogP -1.08 TPSA 83.2	✓ Ro5	✓ Clean	`NOCCOCCOCCOCCO`
ZINC137432264	0.688	457.6 Da LogP -0.91 TPSA 129.3	1 viol.	✓ Clean	`NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC146143823	0.688	237.3 Da LogP -1.00 TPSA 83.2	✓ Ro5	✓ Clean	`NCCOCCOCCOCCOCCO`
ZINC1542984442	0.688	413.5 Da LogP -0.93 TPSA 120.1	✓ Ro5	✓ Clean	`NCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC1565503710	0.688	254.3 Da LogP -0.03 TPSA 57.2	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCS`
ZINC1580161	0.688	208.3 Da LogP -0.33 TPSA 57.2	✓ Ro5	✓ Clean	`COCCOCCOCCOCCO`
ZINC16052118	0.688	340.4 Da LogP -0.28 TPSA 84.8	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCO`
ZINC16052257	0.688	384.5 Da LogP -0.26 TPSA 94.1	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC1857792028	0.688	430.6 Da LogP 0.04 TPSA 94.1	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCOCCS`
ZINC1857792057	0.688	474.6 Da LogP 0.06 TPSA 103.3	1 viol.	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCS`
ZINC230494776	0.688	325.4 Da LogP -0.96 TPSA 101.6	✓ Ro5	✓ Clean	`NCCOCCOCCOCCOCCOCCOCCO`
ZINC34317654	0.688	472.6 Da LogP -0.23 TPSA 112.5	1 viol.	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC38917157	0.688	210.3 Da LogP -0.04 TPSA 47.9	✓ Ro5	✓ Clean	`OCCOCCOCCOCCS`
ZINC44076059	0.688	428.5 Da LogP -0.24 TPSA 103.3	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC5210101	0.688	252.3 Da LogP -0.31 TPSA 66.4	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCO`
ZINC5650743	0.688	222.3 Da LogP 0.07 TPSA 57.2	✓ Ro5	✓ Clean	`CCOCCOCCOCCOCCO`
ZINC5997860	0.688	296.4 Da LogP -0.29 TPSA 75.6	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCO`
ZINC6403917	0.688	354.4 Da LogP 0.11 TPSA 84.8	✓ Ro5	✓ Clean	`CCOCCOCCOCCOCCOCCOCCOCCO`
ZINC77271182	0.688	281.3 Da LogP -0.98 TPSA 92.4	✓ Ro5	✓ Clean	`NCCOCCOCCOCCOCCOCCO`
ZINC83253921	0.688	369.5 Da LogP -0.95 TPSA 110.9	✓ Ro5	✓ Clean	`NCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC90741446	0.688	386.5 Da LogP 0.02 TPSA 84.8	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCS`
ZINC90741447	0.688	298.4 Da LogP -0.01 TPSA 66.4	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCS`
ZINC144169243	0.647	281.3 Da LogP -1.37 TPSA 89.4	✓ Ro5	✓ Clean	`OCCOCCOCCNCCOCCOCCO`
ZINC205758716	0.647	457.6 Da LogP -1.31 TPSA 126.3	1 viol.	✓ Clean	`OCCOCCOCCOCCOCCNCCOCCOCCOCCOCCO`
ZINC575441396	0.647	369.5 Da LogP -1.34 TPSA 107.9	✓ Ro5	✓ Clean	`OCCOCCOCCOCCNCCOCCOCCOCCO`
ZINC115591405	0.636	373.6 Da LogP 4.55 TPSA 72.7	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCCCCNC(CO)(CO)CO`
ZINC115591837	0.636	317.5 Da LogP 2.99 TPSA 72.7	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCNC(CO)(CO)CO`
ZINC143575268	0.636	289.5 Da LogP 2.21 TPSA 72.7	✓ Ro5	✓ Clean	`CCCCCCCCCCCCNC(CO)(CO)CO`
ZINC2322313	0.636	233.4 Da LogP 0.65 TPSA 72.7	✓ Ro5	✓ Clean	`CCCCCCCCNC(CO)(CO)CO`
ZINC97996983	0.636	345.6 Da LogP 3.77 TPSA 72.7	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCCNC(CO)(CO)CO`
ZINC1644613	0.611	206.3 Da LogP 0.83 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCOCCOCCOCCO`
ZINC258839852	0.611	276.3 Da LogP 0.61 TPSA 57.2	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCC(F)(F)F`
ZINC167715346	0.600	266.3 Da LogP -0.18 TPSA 77.4	✓ Ro5	✓ Clean	`OCCCOCCOCCOCCOCCCO`
ZINC34160867	0.600	222.3 Da LogP -0.20 TPSA 68.2	✓ Ro5	✓ Clean	`OCCCOCCOCCOCCCO`
ZINC1580159	0.588	210.3 Da LogP -0.26 TPSA 58.9	✓ Ro5	✓ Clean	`OCCOCCSCCOCCO`
ZINC1611594	0.583	243.3 Da LogP -2.43 TPSA 127.1	✓ Ro5	✓ Clean	`O=S(=O)(O)CCCNC(CO)(CO)CO`
ZINC5273895	0.583	257.3 Da LogP -2.04 TPSA 127.1	✓ Ro5	✓ Clean	`O=S(=O)(O)CCCCNC(CO)(CO)CO`
ZINC142610155	0.579	340.4 Da LogP -0.84 TPSA 112.9	✓ Ro5	✓ Clean	`O=C(O)COCCOCCOCCOCCOCCOCCO`
ZINC33967025	0.579	252.3 Da LogP -0.87 TPSA 94.5	✓ Ro5	✓ Clean	`O=C(O)COCCOCCOCCOCCO`
ZINC39267847	0.579	208.2 Da LogP -0.89 TPSA 85.2	✓ Ro5	✓ Clean	`O=C(O)COCCOCCOCCO`
ZINC83254085	0.579	354.4 Da LogP -0.45 TPSA 112.9	✓ Ro5	✓ Clean	`O=C(O)CCOCCOCCOCCOCCOCCOCCO`
ZINC96503366	0.579	408.5 Da LogP -0.26 TPSA 94.1	✓ Ro5	✓ Clean	`C#CCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC96503425	0.579	222.2 Da LogP -0.50 TPSA 85.2	✓ Ro5	✓ Clean	`O=C(O)CCOCCOCCOCCO`

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.