Target Pathogen

Overview

Basic information about this protein and its source genome.

Accession: KP13_31603
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: AHE42798.1 fimC
Status: annotated
Amino acids: 241
Structure source: AlphaFold + ColabFold

GO

GO:0061077 OBSOLETE. The process of inhibiting aggregation and assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure that is dependent on interaction with a chaperone. GO:0043711 A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a pilus, a short filamentous structure on a bacterial cell, flagella-like in structure and generally present in many copies. GO:0030288 The region between the inner (cytoplasmic or plasma) membrane and outer membrane of organisms with two membranes such as Gram negative bacteria. These periplasmic spaces are relatively thick and contain a thin peptidoglycan layer (PGL), also referred to as a thin cell wall. GO:0071555 A process that results in the assembly, arrangement of constituent parts, or disassembly of the cell wall, the rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal and most prokaryotic cells, maintaining their shape and protecting them from osmotic lysis.

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 (%): 79.253
DEG E-value: 4.9299999999999995e-146
Localization: Periplasmic
ColabFold pLDDT: 90.69

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 0.907

Structure A0A0H3GST7

Pocket Pocket 2

P2Rank 0.037

Structure A0A0H3GST7

Pocket Pocket 1

ColabFold model

FPocket 0.648 · Pocket 1

P2Rank 0.056 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 52 / 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.

4 GO

Gene Ontology (GO)

4

GO:0061077 OBSOLETE. The process of inhibiting aggregation and assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure that is dependent on interaction with a chaperone.
GO:0043711 A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a pilus, a short filamentous structure on a bacterial cell, flagella-like in structure and generally present in many copies.
GO:0030288 The region between the inner (cytoplasmic or plasma) membrane and outer membrane of organisms with two membranes such as Gram negative bacteria. These periplasmic spaces are relatively thick and contain a thin peptidoglycan layer (PGL), also referred to as a thin cell wall.
GO:0071555 A process that results in the assembly, arrangement of constituent parts, or disassembly of the cell wall, the rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal and most prokaryotic cells, maintaining their shape and protecting them from osmotic lysis.

Sequence Features

Domain/signature hits from InterPro and related databases.

35 records

Show feature table

Start	End	DB	Term	Name
1	41	SignalP_GRAM_POSITIVE	SignalP-TM	SignalP-TM
158	241	Gene3D	G3DSA:2.60.40.10	Immunoglobulins
158	241	InterPro	IPR013783	Immunoglobulin-like fold
38	154	FunFam	G3DSA:2.60.40.10:FF:000458	Molecular chaperone FimC
179	233	Pfam	PF02753	Pili assembly chaperone PapD, C-terminal domain
179	233	InterPro	IPR016148	Pili assembly chaperone, C-terminal
1	17	Phobius	SIGNAL_PEPTIDE_N_REGION	N-terminal region of a signal peptide.
38	153	Gene3D	G3DSA:2.60.40.10	Immunoglobulins
38	153	InterPro	IPR013783	Immunoglobulin-like fold
18	29	Phobius	SIGNAL_PEPTIDE_H_REGION	Hydrophobic region of a signal peptide.
42	241	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1	36	SignalP_GRAM_NEGATIVE	SignalP-noTM	SignalP-noTM
30	41	Phobius	SIGNAL_PEPTIDE_C_REGION	C-terminal region of a signal peptide.
1	22	ProSiteProfiles	PS51257	Prokaryotic membrane lipoprotein lipid attachment site profile.
19	237	PANTHER	PTHR30251	PILUS ASSEMBLY CHAPERONE
1	41	Phobius	SIGNAL_PEPTIDE	Signal peptide region
159	234	SUPERFAMILY	SSF49584	Periplasmic chaperone C-domain
159	234	InterPro	IPR036316	Pili assembly chaperone, C-terminal domain superfamily
37	156	SUPERFAMILY	SSF49354	PapD-like
37	156	InterPro	IPR008962	PapD-like superfamily
138	153	PRINTS	PR00969	Pili chaperone signature
138	153	InterPro	IPR001829	Pili assembly chaperone, bacterial
83	104	PRINTS	PR00969	Pili chaperone signature
83	104	InterPro	IPR001829	Pili assembly chaperone, bacterial
38	47	PRINTS	PR00969	Pili chaperone signature
38	47	InterPro	IPR001829	Pili assembly chaperone, bacterial
173	188	PRINTS	PR00969	Pili chaperone signature
173	188	InterPro	IPR001829	Pili assembly chaperone, bacterial
112	129	PRINTS	PR00969	Pili chaperone signature
112	129	InterPro	IPR001829	Pili assembly chaperone, bacterial
12	34	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
37	156	Pfam	PF00345	Pili and flagellar-assembly chaperone, PapD N-terminal domain
37	156	InterPro	IPR016147	Pili assembly chaperone, N-terminal
111	128	ProSitePatterns	PS00635	Gram-negative pili assembly chaperone signature.
111	128	InterPro	IPR018046	Pili assembly chaperone, conserved site

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_A0A0H3GST7	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_31603	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
2				0.907
1				0.307

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				1.62	0.026

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				0.648

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				2.05	0.045

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.

3 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
EC2	2XG5	P15319	453.6 Da LogP 5.94 TPSA 59.3	1 viol.	✓ Clean	`c1ccc(cc1)[C@@H]2[C@H](N3C(=O)C=C(C(=C3S2)C4CC4…`
EC5	2XG5	P15319	471.6 Da LogP 5.90 TPSA 79.5	1 viol.	✓ Clean	`c1ccc(cc1)C[C@@H](C(=O)O)N2C(=O)C=C(C(=C2SO)C3C…`
XC2	2XG4	P15319	476.6 Da LogP 4.03 TPSA 71.8	✓ Ro5	✓ Clean	`c1ccc2c(c1)cccc2CC3=C(C(=O)N4[C@@H](CSC4=C3C5CC…`

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.

KP13_31603

Overview

Target profile

Selected Druggability evidence

Sequence

Functional Annotations

Gene Ontology (GO)

Sequence Features

3D Structure

Structural evidence

Pockets (FPOCKET)

Pockets (P2RANK)

Pockets (FPOCKET)

Pockets (P2RANK)

Ligand evidence