Protein profile

KP13_01046

Long-chain fatty acid transport protein

Genome: KpKP13

Gene: AHE43426.1 fadL Structure source: AlphaFold + ColabFold UniProt A0A235S340

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Amino acids 442

Annotations 2

Features 14

PDB binders 3

Druggability 0.964

Overview

Basic information about this protein and its source genome.

Accession: KP13_01046
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: AHE43426.1 fadL
Status: annotated
Amino acids: 442
Structure source: AlphaFold + ColabFold

GO:0009279 A lipid bilayer that forms the outermost membrane of the cell envelope; enriched in polysaccharide and protein; the outer leaflet of the membrane contains specific lipopolysaccharide structures. GO:0015483 Enables the transfer of a long-chain fatty acid from one side of a membrane to the other. A long-chain fatty acid has an aliphatic tail containing 13 to 22 carbons. This transporter is a porin and so enables the energy independent passage of substances, sized less than 1000 Da, across a membrane. The transmembrane portions of porins consist exclusively of beta-strands which form a beta-barrel. They are found in the outer membranes of Gram-negative bacteria, mitochondria, plastids and possibly acid-fast Gram-positive bacteria.

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 (%): 80.09
DEG E-value: 0.0
Localization: OuterMembrane
ColabFold pLDDT: 93.02

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 0.964

Structure A0A235S340

Pocket Pocket 40

P2Rank 0.871

Structure A0A235S340

Pocket Pocket 1

ColabFold model

FPocket 0.78 · Pocket 1

P2Rank 0.881 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 105 / 4744 genomes with a hit

Normalized 0.022

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

2 GO

Gene Ontology (GO)

GO:0009279 A lipid bilayer that forms the outermost membrane of the cell envelope; enriched in polysaccharide and protein; the outer leaflet of the membrane contains specific lipopolysaccharide structures.
GO:0015483 Enables the transfer of a long-chain fatty acid from one side of a membrane to the other. A long-chain fatty acid has an aliphatic tail containing 13 to 22 carbons. This transporter is a porin and so enables the energy independent passage of substances, sized less than 1000 Da, across a membrane. The transmembrane portions of porins consist exclusively of beta-strands which form a beta-barrel. They are found in the outer membranes of Gram-negative bacteria, mitochondria, plastids and possibly acid-fast Gram-positive bacteria.

Sequence Features

Domain/signature hits from InterPro and related databases.

14 records

Show feature table

Start	End	DB	Term	Name
1	27	SignalP_GRAM_POSITIVE	SignalP-TM	SignalP-TM
12	22	Phobius	SIGNAL_PEPTIDE_H_REGION	Hydrophobic region of a signal peptide.
1	27	SignalP_EUK	SignalP-noTM	SignalP-noTM
28	442	FunFam	G3DSA:2.40.160.60:FF:000001	Long-chain fatty acid transporter FadL
18	442	Pfam	PF03349	Outer membrane protein transport protein (OMPP1/FadL/TodX)
18	442	InterPro	IPR005017	Outer membrane protein transport protein (OMPP1/FadL/TodX)
8	442	PANTHER	PTHR35093	OUTER MEMBRANE PROTEIN NMB0088-RELATED
8	442	InterPro	IPR005017	Outer membrane protein transport protein (OMPP1/FadL/TodX)
28	442	SUPERFAMILY	SSF56935	Porins
1	11	Phobius	SIGNAL_PEPTIDE_N_REGION	N-terminal region of a signal peptide.
28	442	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
28	442	Gene3D	G3DSA:2.40.160.60	Outer membrane protein transport protein (OMPP1/FadL/TodX)
23	27	Phobius	SIGNAL_PEPTIDE_C_REGION	C-terminal region of a signal peptide.
1	27	Phobius	SIGNAL_PEPTIDE	Signal peptide region

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_A0A235S340	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_01046	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
40				0.964
1				0.736
19				0.373

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	14.9	0.738
2	10.98	0.589
3	8.3	0.442
4	3.79	0.146
5	2.26	0.056

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				0.78
37				0.57

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	15.64	0.758
2	12.06	0.637
3	8.63	0.461
4	3.0	0.098
5	2.41	0.065

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.

54 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
C8E	3BRZ	A5W4F4	306.4 Da LogP 2.41 TPSA 57.2	✓ Ro5	✓ Clean	`CCCCCCCCOCCOCCOCCOCCO`
LDA	1T16	P10384	229.4 Da LogP 4.48 TPSA 23.1	✓ Ro5	✓ Clean	`CCCCCCCCCCCC[N+](C)(C)[O-]`
OLA	3PGU	P10384	282.5 Da LogP 6.11 TPSA 37.3	1 viol.	✓ Clean	`CCCCCCCC\C=C/CCCCCCCC(=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).

Ligand	UniProt (homolog)	pchembl	MW · LogP · TPSA	Lipinski	PAINS	SMILES
FOM	P10384	—	183.1 Da LogP -0.60 TPSA 98.1	✓ Ro5	✓ Clean	`C(CN(C=O)O)CP(=O)(O)O`

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
ZINC100014200	1.000	494.7 Da LogP 4.02 TPSA 84.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC100070166	1.000	290.4 Da LogP 3.17 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCO`
ZINC100310628	1.000	478.7 Da LogP 4.78 TPSA 75.6	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCOCCOCCOCCOCCOCCOCCO`
ZINC100365196	1.000	302.5 Da LogP 4.71 TPSA 38.7	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCOCCOCCO`
ZINC101772322	1.000	434.7 Da LogP 4.76 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCOCCOCCOCCOCCOCCO`
ZINC103600921	1.000	466.7 Da LogP 3.24 TPSA 84.8	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC14880431	1.000	378.6 Da LogP 3.20 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCOCCOCCO`
ZINC14881140	1.000	306.4 Da LogP 2.41 TPSA 57.2	✓ Ro5	✓ Clean	`CCCCCCCCOCCOCCOCCOCCO`
ZINC16051619	1.000	350.5 Da LogP 2.42 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCOCCOCCOCCOCCOCCO`
ZINC1849937	1.000	201.4 Da LogP 3.70 TPSA 23.1	✓ Ro5	✓ Clean	`CCCCCCCCCC[N+](C)(C)[O-]`
ZINC2008702	1.000	243.4 Da LogP 4.87 TPSA 23.1	✓ Ro5	✓ Clean	`CCCCCCCCCCCCC[N+](C)(C)[O-]`
ZINC2039372	1.000	229.4 Da LogP 4.48 TPSA 23.1	✓ Ro5	✓ Clean	`CCCCCCCCCCCC[N+](C)(C)[O-]`
ZINC2516963	1.000	215.4 Da LogP 4.09 TPSA 23.1	✓ Ro5	✓ Clean	`CCCCCCCCCCC[N+](C)(C)[O-]`
ZINC2584424	1.000	218.3 Da LogP 2.37 TPSA 38.7	✓ Ro5	✓ Clean	`CCCCCCCCOCCOCCO`
ZINC4521877	1.000	234.3 Da LogP 1.61 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCCOCCOCCOCCO`
ZINC5273610	1.000	322.4 Da LogP 1.64 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCOCCOCCOCCOCCOCCO`
ZINC58538366	1.000	392.6 Da LogP 3.59 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCOCCOCCOCCOCCOCCO`
ZINC58631420	1.000	422.6 Da LogP 3.22 TPSA 75.6	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCOCCOCCOCCO`
ZINC59441819	1.000	318.5 Da LogP 3.95 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCO`
ZINC59622400	1.000	274.4 Da LogP 3.93 TPSA 38.7	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCO`
ZINC64633397	1.000	226.4 Da LogP 4.55 TPSA 37.3	✓ Ro5	✓ Clean	`CCCCCC/C=C\CCCCCC(=O)O`
ZINC71788551	1.000	334.5 Da LogP 3.19 TPSA 57.2	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCOCCO`
ZINC71788564	1.000	262.4 Da LogP 2.39 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCCCCOCCOCCOCCO`
ZINC71788567	1.000	406.6 Da LogP 3.98 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCOCCOCCO`
ZINC8214594	1.000	362.6 Da LogP 3.97 TPSA 57.2	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCOCCO`
ZINC88260008	1.000	390.6 Da LogP 4.75 TPSA 57.2	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCOCCOCCOCCOCCO`
ZINC95784968	1.000	450.7 Da LogP 4.00 TPSA 75.6	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCOCCOCCOCCO`
ZINC95863931	1.000	464.7 Da LogP 4.39 TPSA 75.6	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCOCCOCCOCCOCCOCCOCCO`
ZINC1849711	0.950	202.3 Da LogP 3.14 TPSA 29.5	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCO`
ZINC1850542	0.950	216.4 Da LogP 3.53 TPSA 29.5	✓ Ro5	✓ Clean	`CCCCCCCCCCCOCCO`
ZINC2555269	0.950	220.3 Da LogP 1.22 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCOCCOCCOCCO`
ZINC59660505	0.950	244.4 Da LogP 4.31 TPSA 29.5	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCOCCO`
ZINC8437287	0.950	230.4 Da LogP 3.92 TPSA 29.5	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCO`
ZINC85733754	0.950	258.4 Da LogP 4.70 TPSA 29.5	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCOCCO`
ZINC1531062	0.917	226.4 Da LogP 4.55 TPSA 37.3	✓ Ro5	✓ Clean	`CCCC/C=C/CCCCCCCC(=O)O`
ZINC2504617	0.917	240.4 Da LogP 4.94 TPSA 37.3	✓ Ro5	✓ Clean	`CCCC/C=C/CCCCCCCCC(=O)O`
ZINC32786138	0.917	226.4 Da LogP 4.55 TPSA 37.3	✓ Ro5	✓ Clean	`CCCCCCCC/C=C/CCCC(=O)O`
ZINC4529321	0.917	226.4 Da LogP 4.55 TPSA 37.3	✓ Ro5	✓ Clean	`CCCC/C=C\CCCCCCCC(=O)O`
ZINC5260769	0.917	240.4 Da LogP 4.94 TPSA 37.3	✓ Ro5	✓ Clean	`CCCC/C=C\CCCCCCCCC(=O)O`
ZINC1644613	0.810	206.3 Da LogP 0.83 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCOCCOCCOCCO`
ZINC31439572	0.778	224.3 Da LogP 4.32 TPSA 37.3	✓ Ro5	✓ Clean	`CCCCC/C=C\C/C=C\CCCC(=O)O`
ZINC59545536	0.773	258.4 Da LogP 4.70 TPSA 29.5	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCOCCCO`
ZINC95831576	0.773	230.4 Da LogP 3.92 TPSA 29.5	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCCCO`
ZINC198743420	0.750	228.3 Da LogP 2.83 TPSA 74.6	✓ Ro5	✓ Clean	`O=C(O)CCC/C=C\CCCCCC(=O)O`
ZINC33954988	0.719	296.5 Da LogP 4.86 TPSA 57.5	✓ Ro5	✓ Clean	`CCCCC/C=C\C[C@H](O)/C=C/CCCCCCC(=O)O`
ZINC33954989	0.719	296.5 Da LogP 4.86 TPSA 57.5	✓ Ro5	✓ Clean	`CCCCC/C=C\C[C@@H](O)/C=C/CCCCCCC(=O)O`
ZINC33820298	0.714	250.4 Da LogP 4.88 TPSA 37.3	✓ Ro5	✓ Clean	`CCCCC/C=C/C/C=C/C/C=C/CCC(=O)O`
ZINC100079757	0.704	253.4 Da LogP 4.73 TPSA 43.1	✓ Ro5	✓ Clean	`CCCCCC/C=C\CCCCCCCC(N)=O`
ZINC1665926	0.704	226.4 Da LogP 4.55 TPSA 37.3	✓ Ro5	✓ Clean	`CCCCCCCCCC/C=C/CC(=O)O`
ZINC85922479	0.704	210.4 Da LogP 4.66 TPSA 17.1	✓ Ro5	✓ Clean	`CCCCCC/C=C/CCCCC(C)=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.