Protein profile

KP13_02773

Biopolymer transport protein exbB

Genome: KpKP13

Gene: AHE42658.1 exbB Structure source: AlphaFold + ColabFold UniProt A0A0H3GYI0

Export view

Amino acids 229

Annotations 5

Features 16

PDB binders 2

Druggability 0.55

Overview

Basic information about this protein and its source genome.

Accession: KP13_02773
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: AHE42658.1 exbB
Status: annotated
Amino acids: 229
Structure source: AlphaFold + ColabFold

GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it. GO:0022857 Enables the transfer of a substance, usually a specific substance or a group of related substances, from one side of a membrane to the other. GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other. 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:0017038 The targeting and directed movement of proteins into a cell or organelle. Not all import involves an initial targeting event.

Target profile

Computed evidence for target prioritization.

Human off-target: No hit
Human identity (%): 0.0
Gut microbiome off-target: hit
Essential (DEG): Y
DEG identity (%): 41.784
DEG E-value: 2.68e-38
Localization: CytoplasmicMembrane
ColabFold pLDDT: 90.96

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 0.55

Structure A0A0H3GYI0

Pocket Pocket 16

P2Rank 0.055

Structure A0A0H3GYI0

Pocket Pocket 1

ColabFold model

FPocket 0.636 · Pocket 3

P2Rank 0.119 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 124 / 4744 genomes with a hit

Normalized 0.026

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

5 GO

Gene Ontology (GO)

GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
GO:0022857 Enables the transfer of a substance, usually a specific substance or a group of related substances, from one side of a membrane to the other.
GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
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:0017038 The targeting and directed movement of proteins into a cell or organelle. Not all import involves an initial targeting event.

Sequence Features

Domain/signature hits from InterPro and related databases.

16 records

Show feature table

Start	End	DB	Term	Name
163	184	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
1	11	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
185	229	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
71	189	Pfam	PF01618	MotA/TolQ/ExbB proton channel family
71	189	InterPro	IPR002898	MotA/TolQ/ExbB proton channel
1	208	NCBIfam	TIGR02797	tonB-system energizer ExbB
1	208	InterPro	IPR014164	TonB-system energizer ExbB type-1
117	139	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
144	162	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
34	54	Coils	Coil	Coil
7	29	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
12	36	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
163	185	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
37	117	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
11	216	PANTHER	PTHR30625	PROTEIN TOLQ
118	143	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.

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 + 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_A0A0H3GYI0	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_02773	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
17				0.01
2				0.004
20				0.004
11				0.001

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	2.46	0.055
2	2.05	0.037
3	1.09	0.007

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
3				0.636
2				0.008
6				0.0
17				0.0

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				3.8	0.119
2				2.09	0.039

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.

52 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
PEV	6TYI	P0ABU7	720.0 Da LogP 11.28 TPSA 134.4	2 viol.	✓ Clean	`CCCCCCCCCCCCCCCCCC(=O)O[C@@H](COC(=O)CCCCCCCCCC…`
PGT	6YE4	A0A1C3HJ46	751.0 Da LogP 10.67 TPSA 148.8	2 viol.	✓ Clean	`CCCCCCCCCCCCCCCCCC(=O)O[C@@H](COC(=O)CCCCCCCCCC…`

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
ZINC102191119	1.000	498.6 Da LogP 3.65 TPSA 148.8	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@H](CO[P@@](=O)(O)OC[C@@H](O)CO…`
ZINC58649551	1.000	498.6 Da LogP 3.65 TPSA 148.8	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@H](CO[P@@](=O)(O)OC[C@H](O)CO)…`
ZINC102191158	0.795	456.5 Da LogP 3.08 TPSA 142.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC(=O)OC[C@H](O)CO[P@@](=O)(O)OC[C@…`
ZINC14880758	0.795	484.6 Da LogP 3.86 TPSA 142.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)CO[P@](=O)(O)OC[…`
ZINC14880760	0.795	484.6 Da LogP 3.86 TPSA 142.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCC(=O)OC[C@H](O)CO[P@](=O)(O)OC[C…`
ZINC53683910	0.795	484.6 Da LogP 3.86 TPSA 142.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCC(=O)OC[C@H](O)CO[P@@](=O)(O)OC[…`
ZINC62592202	0.795	456.5 Da LogP 3.08 TPSA 142.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC(=O)OC[C@H](O)CO[P@@](=O)(O)OC[C@…`
ZINC62592203	0.795	456.5 Da LogP 3.08 TPSA 142.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC(=O)OC[C@@H](O)CO[P@@](=O)(O)OC[C…`
ZINC62592204	0.795	484.6 Da LogP 3.86 TPSA 142.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)CO[P@@](=O)(O)OC…`
ZINC96094841	0.795	456.5 Da LogP 3.08 TPSA 142.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC(=O)OC[C@@H](O)CO[P@@](=O)(O)OC[C…`
ZINC102190506	0.729	467.5 Da LogP 4.25 TPSA 134.4	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@H](CO[P@@](=O)(O)OCCN)OC(=O)CC…`
ZINC102190512	0.729	467.5 Da LogP 4.25 TPSA 134.4	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@@H](CO[P@@](=O)(O)OCCN)OC(=O)C…`
ZINC36178999	0.711	424.5 Da LogP 4.27 TPSA 119.4	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@@H](COP(=O)(O)O)OC(=O)CCCCCCC`
ZINC36179002	0.711	424.5 Da LogP 4.27 TPSA 119.4	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@H](COP(=O)(O)O)OC(=O)CCCCCCC`
ZINC27416437	0.708	411.4 Da LogP 2.69 TPSA 134.4	✓ Ro5	✓ Clean	`CCCCCC(=O)OC[C@H](CO[P@](=O)(O)OCCN)OC(=O)CCCCC`
ZINC33902364	0.708	411.4 Da LogP 2.69 TPSA 134.4	✓ Ro5	✓ Clean	`CCCCCC(=O)OC[C@@H](CO[P@@](=O)(O)OCCN)OC(=O)CCC…`
ZINC13543394	0.694	455.4 Da LogP 2.15 TPSA 171.7	✓ Ro5	✓ Clean	`CCCCCC(=O)OC[C@H](CO[P@@](=O)(O)OC[C@H](N)C(=O)…`
ZINC5820131	0.689	368.4 Da LogP 2.71 TPSA 119.4	✓ Ro5	✓ Clean	`CCCCCC(=O)OC[C@@H](COP(=O)(O)O)OC(=O)CCCCC`
ZINC5820134	0.689	368.4 Da LogP 2.71 TPSA 119.4	✓ Ro5	✓ Clean	`CCCCCC(=O)OC[C@H](COP(=O)(O)O)OC(=O)CCCCC`
ZINC13544781	0.686	482.6 Da LogP 4.22 TPSA 108.4	✓ Ro5	✓ Clean	`CCCCCCC(=O)OC[C@@H](CO[P@](=O)(O)OCC[N+](C)(C)C…`
ZINC13544783	0.686	482.6 Da LogP 4.22 TPSA 108.4	✓ Ro5	✓ Clean	`CCCCCCC(=O)OC[C@H](CO[P@](=O)(O)OCC[N+](C)(C)C)…`
ZINC13543439	0.667	454.5 Da LogP 3.44 TPSA 108.4	✓ Ro5	✓ Clean	`CCCCCC(=O)OC[C@@H](CO[P@](=O)(O)OCC[N+](C)(C)C)…`
ZINC13543441	0.667	454.5 Da LogP 3.44 TPSA 108.4	✓ Ro5	✓ Clean	`CCCCCC(=O)OC[C@H](CO[P@](=O)(O)OCC[N+](C)(C)C)O…`
ZINC36079847	0.636	344.5 Da LogP 4.15 TPSA 72.8	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@@H](CO)OC(=O)CCCCCCC`
ZINC8214428	0.636	344.5 Da LogP 4.15 TPSA 72.8	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@H](CO)OC(=O)CCCCCCC`
ZINC100297583	0.628	232.3 Da LogP 1.63 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC100503477	0.628	260.4 Da LogP 2.41 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC100503478	0.628	260.4 Da LogP 2.41 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC2516268	0.628	218.3 Da LogP 1.24 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@H](O)CO`
ZINC2516269	0.628	246.3 Da LogP 2.02 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC2568190	0.628	232.3 Da LogP 1.63 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCC(=O)OC[C@H](O)CO`
ZINC32840883	0.628	302.5 Da LogP 3.58 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840884	0.628	302.5 Da LogP 3.58 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC32840889	0.628	316.5 Da LogP 3.97 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840890	0.628	316.5 Da LogP 3.97 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC32840891	0.628	330.5 Da LogP 4.36 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840892	0.628	330.5 Da LogP 4.36 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC38153421	0.628	246.3 Da LogP 2.02 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC72400435	0.628	344.5 Da LogP 4.75 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC77313111	0.628	344.5 Da LogP 4.75 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC8437476	0.628	274.4 Da LogP 2.80 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC8437478	0.628	274.4 Da LogP 2.80 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC8674155	0.628	218.3 Da LogP 1.24 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC95669489	0.628	288.4 Da LogP 3.19 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC95669491	0.628	288.4 Da LogP 3.19 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC263614238	0.627	470.5 Da LogP 3.32 TPSA 142.8	✓ Ro5	✓ Clean	`CC[C@H](C)CCCCCCCCCCC(=O)OC[C@H](O)CO[P@@](=O)(…`
ZINC38564715	0.627	470.5 Da LogP 3.32 TPSA 142.8	✓ Ro5	✓ Clean	`CC[C@H](C)CCCCCCCCCCC(=O)OC[C@H](O)CO[P@@](=O)(…`
ZINC32840693	0.620	425.5 Da LogP 3.68 TPSA 128.3	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC(=O)OC[C@H](O)CO[P@](=O)(O)OCCN`
ZINC32840705	0.620	453.6 Da LogP 4.46 TPSA 128.3	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCC(=O)OC[C@H](O)CO[P@](=O)(O)OCCN`
ZINC95635984	0.620	397.4 Da LogP 2.90 TPSA 128.3	✓ Ro5	✓ Clean	`CCCCCCCCCCCC(=O)OC[C@@H](O)CO[P@@](=O)(O)OCCN`

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.