Protein profile

KP13_02973

HTH-type transcriptional activator aaeR

Genome: KpKP13

Gene: AHE42430.1 aaeR Structure source: AlphaFold + ColabFold UniProt A0A0H3GZ39

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Amino acids 309

Annotations 4

Features 20

PDB binders 8

Druggability 0.133

Overview

Basic information about this protein and its source genome.

Accession: KP13_02973
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: AHE42430.1 aaeR
Status: annotated
Amino acids: 309
Structure source: AlphaFold + ColabFold

GO:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription. GO:0003700 A transcription regulator activity that modulates transcription of gene sets via selective and non-covalent binding to a specific double-stranded genomic DNA sequence (sometimes referred to as a motif) within a cis-regulatory region. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units, and include bacterial operons. GO:0043565 Binding to DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding. GO:0006351 The synthesis of an RNA transcript from a DNA template.

Target profile

Computed evidence for target prioritization.

Human off-target: No hit
Human identity (%): 0.0
Gut microbiome off-target: hit
Essential (DEG): N
DEG identity (%): 0.0
Localization: Cytoplasmic
ColabFold pLDDT: 86.94

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 0.133

Structure A0A0H3GZ39

Pocket Pocket 13

P2Rank 0.535

Structure A0A0H3GZ39

Pocket Pocket 1

ColabFold model

FPocket 0.156 · Pocket 17

P2Rank 0.583 · Pocket 1

Core conservation Accessory gene

Roary accessory

CoreCruncher accessory

Gut microbiome 95 / 4744 genomes with a hit

Normalized 0.02

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

4 GO

Gene Ontology (GO)

GO:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
GO:0003700 A transcription regulator activity that modulates transcription of gene sets via selective and non-covalent binding to a specific double-stranded genomic DNA sequence (sometimes referred to as a motif) within a cis-regulatory region. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units, and include bacterial operons.
GO:0043565 Binding to DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
GO:0006351 The synthesis of an RNA transcript from a DNA template.

Sequence Features

Domain/signature hits from InterPro and related databases.

20 records

Show feature table

Start	End	DB	Term	Name
1	85	FunFam	G3DSA:1.10.10.10:FF:000001	LysR family transcriptional regulator
87	293	FunFam	G3DSA:3.40.190.290:FF:000003	HTH-type transcriptional activator AaeR
92	288	CDD	cd08422	PBP2_CrgA_like
3	85	Gene3D	G3DSA:1.10.10.10	-
3	85	InterPro	IPR036388	Winged helix-like DNA-binding domain superfamily
4	109	SUPERFAMILY	SSF46785	Winged helix DNA-binding domain
4	109	InterPro	IPR036390	Winged helix DNA-binding domain superfamily
1	59	ProSiteProfiles	PS50931	LysR-type HTH domain profile.
1	59	InterPro	IPR000847	Transcription regulator HTH, LysR
1	225	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
226	245	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
4	63	Pfam	PF00126	Bacterial regulatory helix-turn-helix protein, lysR family
4	63	InterPro	IPR000847	Transcription regulator HTH, LysR
23	43	Coils	Coil	Coil
90	291	Pfam	PF03466	LysR substrate binding domain
90	291	InterPro	IPR005119	LysR, substrate-binding
87	293	Gene3D	G3DSA:3.40.190.290	-
4	292	PANTHER	PTHR30537	HTH-TYPE TRANSCRIPTIONAL REGULATOR
246	309	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
90	292	SUPERFAMILY	SSF53850	Periplasmic binding protein-like II

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_A0A0H3GZ39	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_02973	ColabFold	—	—	full sequence	—	Loaded

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

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	Sticks	Spheres	Surfaces	Score	Probability	Labels	Zoom	Positions
1				8.02	0.427
2				3.02	0.099

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	Sticks	Spheres	Surfaces	Score	Probability	Labels	Zoom	Positions
1				9.39	0.505
2				2.15	0.05

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.

58 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
1PS	6G1B	Q8NP91	201.2 Da LogP -0.09 TPSA 61.1	✓ Ro5	✓ Clean	`c1cc[n+](cc1)CCCS(=O)(=O)[O-]`
AKG	5Y2V	P73862	146.1 Da LogP -0.50 TPSA 91.7	✓ Ro5	✓ Clean	`C(CC(=O)O)C(=O)C(=O)O`
BEZ	2F7A	O68014	122.1 Da LogP 1.38 TPSA 37.3	✓ Ro5	✓ Clean	`c1ccc(cc1)C(=O)O`
CCU	3GLB	P07774	142.1 Da LogP 0.27 TPSA 74.6	✓ Ro5	✓ Clean	`C(=C/C(=O)O)/C=C\C(=O)O`
FOR	6G1D	Q8NP91	30.0 Da LogP -0.18 TPSA 17.1	✓ Ro5	✓ Clean	`C=O`
MLI	4IHS	O68014	102.0 Da LogP -3.12 TPSA 80.3	✓ Ro5	✓ Clean	`C(C(=O)[O-])C(=O)[O-]`
PEO	6G1B	Q8NP91	34.0 Da LogP 0.02 TPSA 40.5	✓ Ro5	✓ Clean	`OO`
TSU	3FXU	P94678	172.2 Da LogP 1.24 TPSA 54.4	✓ Ro5	✓ Clean	`Cc1ccc(cc1)S(=O)(=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
ZINC34564963	0.900	248.3 Da LogP 2.91 TPSA 54.4	✓ Ro5	✓ Clean	`Cc1ccc(-c2ccc(S(=O)(=O)O)cc2)cc1`
ZINC3269660	0.824	254.2 Da LogP 2.45 TPSA 71.4	✓ Ro5	Alert	`O=C(O)c1ccc(C(=O)C(=O)c2ccccc2)cc1`
ZINC2504355	0.778	226.2 Da LogP 2.62 TPSA 54.4	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C(=O)c2ccccc2)cc1`
ZINC6093151	0.722	238.2 Da LogP 0.18 TPSA 108.7	✓ Ro5	✓ Clean	`O=S(=O)(O)c1ccc(S(=O)(=O)O)cc1`
ZINC1866983	0.700	314.3 Da LogP 1.85 TPSA 108.7	✓ Ro5	✓ Clean	`O=S(=O)(O)c1ccc(-c2ccc(S(=O)(=O)O)cc2)cc1`
ZINC1672966	0.688	210.2 Da LogP 2.75 TPSA 34.1	✓ Ro5	Alert	`O=C(C(=O)c1ccccc1)c1ccccc1`
ZINC34057267	0.684	274.3 Da LogP 4.72 TPSA 37.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(-c2ccc(-c3ccccc3)cc2)cc1`
ZINC114185151	0.647	298.2 Da LogP 2.15 TPSA 108.7	✓ Ro5	Alert	`O=C(O)c1ccc(C(=O)C(=O)c2ccc(C(=O)O)cc2)cc1`
ZINC1590838	0.647	342.4 Da LogP 3.82 TPSA 68.3	✓ Ro5	Alert	`O=C(C(=O)c1ccc(C(=O)C(=O)c2ccccc2)cc1)c1ccccc1`
ZINC16133932	0.647	474.5 Da LogP 4.88 TPSA 102.4	✓ Ro5	Alert	`O=C(C(=O)c1ccc(C(=O)C(=O)c2ccc(C(=O)C(=O)c3cccc…`
ZINC4521819	0.643	202.3 Da LogP 0.25 TPSA 58.3	✓ Ro5	✓ Clean	`O=S(=O)(O)CCC[n+]1ccccc1`
ZINC82548310	0.636	236.3 Da LogP 0.34 TPSA 88.5	✓ Ro5	✓ Clean	`CS(=O)(=O)c1ccc(S(=O)(=O)O)cc1`
ZINC133397	0.619	246.3 Da LogP 3.14 TPSA 34.1	✓ Ro5	✓ Clean	`Cc1ccc(S(=O)(=O)c2ccc(C)cc2)cc1`
ZINC34279126	0.615	222.3 Da LogP 2.39 TPSA 54.4	✓ Ro5	✓ Clean	`Cc1ccc2cc(S(=O)(=O)O)ccc2c1`
ZINC1070912	0.611	286.3 Da LogP 4.15 TPSA 34.1	✓ Ro5	✓ Clean	`O=C(c1ccccc1)c1ccc(C(=O)c2ccccc2)cc1`
ZINC134079	0.611	242.2 Da LogP 2.75 TPSA 74.6	✓ Ro5	✓ Clean	`O=C(O)c1ccc(-c2ccc(C(=O)O)cc2)cc1`
ZINC1640789	0.611	374.3 Da LogP 3.55 TPSA 108.7	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C(=O)c2ccc(C(=O)c3ccc(C(=O)O)cc3)cc…`
ZINC2146859	0.611	270.2 Da LogP 2.31 TPSA 91.7	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C(=O)c2ccc(C(=O)O)cc2)cc1`
ZINC3147211	0.611	318.3 Da LogP 4.42 TPSA 74.6	✓ Ro5	✓ Clean	`O=C(O)c1ccc(-c2ccc(-c3ccc(C(=O)O)cc3)cc2)cc1`
ZINC36294287	0.607	248.3 Da LogP 2.91 TPSA 54.4	✓ Ro5	✓ Clean	`Cc1cccc(-c2ccc(S(=O)(=O)O)cc2)c1`
ZINC2539781	0.600	382.1 Da LogP 4.24 TPSA 34.1	✓ Ro5	✓ Clean	`O=C(c1ccccc1)C(Br)(Br)C(=O)c1ccccc1`
ZINC4831627	0.593	370.5 Da LogP -0.21 TPSA 76.0	✓ Ro5	✓ Clean	`O=S(=O)(CC[n+]1ccccc1)CCS(=O)(=O)CC[n+]1ccccc1`
ZINC100009533	0.591	226.2 Da LogP 3.80 TPSA 62.0	✓ Ro5	Alert	`O=C(O)c1ccc(/N=N\c2ccccc2)cc1`
ZINC12956625	0.591	226.2 Da LogP 3.80 TPSA 62.0	✓ Ro5	Alert	`O=C(O)c1ccc(N=Nc2ccccc2)cc1`
ZINC1601737	0.591	213.2 Da LogP 3.13 TPSA 49.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(Nc2ccccc2)cc1`
ZINC1689689	0.591	228.3 Da LogP 2.82 TPSA 61.4	✓ Ro5	✓ Clean	`O=C(O)c1ccc(NNc2ccccc2)cc1`
ZINC1697492	0.591	212.2 Da LogP 2.98 TPSA 37.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(Cc2ccccc2)cc1`
ZINC169818652	0.591	380.5 Da LogP 2.76 TPSA 37.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc([Si](c2ccccc2)(c2ccccc2)c2ccccc2)cc1`
ZINC33759110	0.591	224.3 Da LogP 3.56 TPSA 37.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(/C=C/c2ccccc2)cc1`
ZINC346053	0.591	289.3 Da LogP 4.85 TPSA 40.5	✓ Ro5	✓ Clean	`O=C(O)c1ccc(N(c2ccccc2)c2ccccc2)cc1`
ZINC396612	0.591	230.3 Da LogP 3.54 TPSA 37.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(Sc2ccccc2)cc1`
ZINC409186	0.591	226.2 Da LogP 2.62 TPSA 54.4	✓ Ro5	✓ Clean	`O=C(O)c1cccc(C(=O)c2ccccc2)c1`
ZINC409394	0.591	226.3 Da LogP 3.17 TPSA 37.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(CCc2ccccc2)cc1`
ZINC4299335	0.591	222.2 Da LogP 2.78 TPSA 37.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C#Cc2ccccc2)cc1`
ZINC4403618	0.591	226.2 Da LogP 3.80 TPSA 62.0	✓ Ro5	Alert	`O=C(O)c1ccc(/N=N/c2ccccc2)cc1`
ZINC4802802	0.591	288.3 Da LogP 4.57 TPSA 37.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C(c2ccccc2)c2ccccc2)cc1`
ZINC5538754	0.591	304.3 Da LogP 3.67 TPSA 57.5	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C(O)(c2ccccc2)c2ccccc2)cc1`
ZINC60939	0.591	214.2 Da LogP 3.18 TPSA 46.5	✓ Ro5	✓ Clean	`O=C(O)c1ccc(Oc2ccccc2)cc1`
ZINC1565641	0.583	214.3 Da LogP 2.23 TPSA 54.4	✓ Ro5	✓ Clean	`CC(C)(C)c1ccc(S(=O)(=O)O)cc1`
ZINC1661217	0.583	234.3 Da LogP 2.60 TPSA 54.4	✓ Ro5	✓ Clean	`O=S(=O)(O)c1ccc(-c2ccccc2)cc1`
ZINC254583	0.583	242.2 Da LogP 2.60 TPSA 63.6	✓ Ro5	✓ Clean	`O=C(O)c1ccc(OC(=O)c2ccccc2)cc1`
ZINC43214128	0.583	240.3 Da LogP 2.81 TPSA 54.4	✓ Ro5	✓ Clean	`O=C(O)c1ccc(CC(=O)c2ccccc2)cc1`
ZINC78349	0.583	241.2 Da LogP 2.64 TPSA 66.4	✓ Ro5	✓ Clean	`O=C(O)c1ccc(NC(=O)c2ccccc2)cc1`
ZINC1718650	0.579	238.2 Da LogP 2.32 TPSA 51.2	✓ Ro5	Alert	`O=C(C(=O)c1ccccc1)C(=O)c1ccccc1`
ZINC4530702	0.579	224.3 Da LogP 3.14 TPSA 34.1	✓ Ro5	✓ Clean	`O=C(CC(=O)c1ccccc1)c1ccccc1`
ZINC96315996	0.579	268.3 Da LogP 2.77 TPSA 74.6	✓ Ro5	✓ Clean	`O=C(O)/C(=C(\C(=O)O)c1ccccc1)c1ccccc1`
ZINC1669673	0.577	206.7 Da LogP 1.90 TPSA 54.4	✓ Ro5	✓ Clean	`Cc1ccc(S(=O)(=O)O)cc1Cl`
ZINC1496851	0.571	260.2 Da LogP 3.39 TPSA 34.1	✓ Ro5	✓ Clean	`O=C(c1ccccc1)C(F)(F)C(=O)c1ccccc1`
ZINC207916	0.571	270.2 Da LogP 2.31 TPSA 91.7	✓ Ro5	✓ Clean	`O=C(O)c1cccc(C(=O)c2cccc(C(=O)O)c2)c1`
ZINC21298253	0.571	358.3 Da LogP 0.38 TPSA 149.2	✓ Ro5	✓ Clean	`O=C(O)[C@@](O)(C(=O)c1ccccc1)[C@@](O)(C(=O)O)C(…`

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.