Target Pathogen

Overview

Basic information about this protein and its source genome.

Accession: PA1459
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: cheB cheB1 PA1459
Status: annotated
Amino acids: 368
Structure source: AlphaFold

EC

3.1.1.61 3.5.1.44

GO

GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. GO:0000156 Responds to a phosphorelay sensor to initiate a change in cell state or activity. The activity of the response regulator is regulated by transfer of a phosphate from a histidine residue in the sensor, to an aspartate residue in the response regulator. Many but not all response regulators act as transcriptional regulators to elicit a response. GO:0008984 Catalysis of the reaction: protein L-glutamate O(5)-methyl ester + H2O = protein L-glutamate + methanol. GO:0050568 Catalysis of the reaction: L-glutaminyl-[protein] + H2O = L-glutamyl-[protein] + NH4+. GO:0006935 The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis). GO:0007165 The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.

Target profile

Computed evidence for target prioritization.

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

Selected Druggability evidence

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 0.87

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

2 EC 7 GO

Enzyme Commission (EC)

2

Gene Ontology (GO)

7

GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
GO:0000156 Responds to a phosphorelay sensor to initiate a change in cell state or activity. The activity of the response regulator is regulated by transfer of a phosphate from a histidine residue in the sensor, to an aspartate residue in the response regulator. Many but not all response regulators act as transcriptional regulators to elicit a response.
GO:0008984 Catalysis of the reaction: protein L-glutamate O(5)-methyl ester + H2O = protein L-glutamate + methanol.
GO:0050568 Catalysis of the reaction: L-glutaminyl-[protein] + H2O = L-glutamyl-[protein] + NH4+.
GO:0006935 The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis).
GO:0007165 The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
GO:0000160 A conserved series of molecular signals found in prokaryotes and eukaryotes; involves autophosphorylation of a histidine kinase and the transfer of the phosphate group to an aspartate that then acts as a phospho-donor to response regulator proteins.

Sequence Features

Domain/signature hits from InterPro and related databases.

27 records

Show feature table

Start	End	DB	Term	Name
3	368	Hamap	MF_00099	Protein-glutamate methylesterase/protein-glutamine glutaminase [cheB].
3	368	InterPro	IPR008248	Protein-glutamate methylesterase/protein-glutamine glutaminase, CheB type
186	365	CDD	cd16432	CheB_Rec
186	365	InterPro	IPR000673	Signal transduction response regulator, chemotaxis, protein-glutamate methylesterase
1	368	PIRSF	PIRSF000876	RR_chemtxs_CheB
1	368	InterPro	IPR008248	Protein-glutamate methylesterase/protein-glutamine glutaminase, CheB type
180	366	Gene3D	G3DSA:3.40.50.180	-
180	366	InterPro	IPR035909	Methylesterase CheB, C-terminal
182	367	SUPERFAMILY	SSF52738	Methylesterase CheB, C-terminal domain
182	367	InterPro	IPR035909	Methylesterase CheB, C-terminal
172	368	ProSiteProfiles	PS50122	CheB-type methylesterase domain profile.
172	368	InterPro	IPR000673	Signal transduction response regulator, chemotaxis, protein-glutamate methylesterase
3	126	CDD	cd17541	REC_CheB-like
187	363	Pfam	PF01339	CheB methylesterase
187	363	InterPro	IPR000673	Signal transduction response regulator, chemotaxis, protein-glutamate methylesterase
2	131	Gene3D	G3DSA:3.40.50.2300	-
176	368	FunFam	G3DSA:3.40.50.180:FF:000001	Protein-glutamate methylesterase/protein-glutamine glutaminase
3	122	SMART	SM00448	REC_2
3	122	InterPro	IPR001789	Signal transduction response regulator, receiver domain
5	109	Pfam	PF00072	Response regulator receiver domain
5	109	InterPro	IPR001789	Signal transduction response regulator, receiver domain
3	109	SUPERFAMILY	SSF52172	CheY-like
3	109	InterPro	IPR011006	CheY-like superfamily
3	129	FunFam	G3DSA:3.40.50.2300:FF:000077	Chemotaxis response regulator
1	368	PANTHER	PTHR42872	PROTEIN-GLUTAMATE METHYLESTERASE/PROTEIN-GLUTAMINE GLUTAMINASE
4	121	ProSiteProfiles	PS50110	Response regulatory domain profile.
4	121	InterPro	IPR001789	Signal transduction response regulator, receiver domain

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...

Legend High Medium Low

Structural evidence

0 + 1

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

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold PA1459	AlphaFold	—	—	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
1				0.87
2				0.785

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.

2 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
BEF	6EB7	A0A0H2UQ68	66.0 Da LogP 0.88 TPSA 0.0	✓ Ro5	✓ Clean	`[Be-](F)(F)F`
PHS	1NXP	A0A0H2UQ68	82.0 Da LogP -0.64 TPSA 57.5	✓ Ro5	✓ Clean	`OP(=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).

No virtual-screening candidates for this protein.

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.

PA1459