Protein profile

VK055_2400

fhuA outer membrane protein receptor for ferrichrome, colicin M, and phages T1, T5, and phi80

Genome: KpATCC43816

Gene: AIK80997.1 Structure source: AlphaFold + ColabFold UniProt A0A0H3GNH3
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Amino acids 709
Annotations 5
Features 18
PDB binders 7
Druggability 0.596

Overview

Basic information about this protein and its source genome.

Accession
VK055_2400
Assembly
Klebsiella pneumoniae subsp. pneumoniae strain ATCC 43816 KPPR1, complete genome
Gene
AIK80997.1
Status
annotated
Amino acids
709
Structure source
AlphaFold + ColabFold
GO
GO:0015343 Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: siderophore-iron(out) + H+(out) = siderophore-iron(in) + H+(in). GO:0038023 Receiving a signal and transmitting it in the cell to initiate a change in cell activity. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response. 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:0015891 The directed movement of siderophores, low molecular weight Fe(III)-chelating substances, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. GO:0015344 Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: siderophore-iron(ferrioxamine)(out) + H+(out) = siderophore-iron(ferrioxamine)(in) + H+(in).

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 (%)
21.596
Localization
OuterMembrane
ColabFold pLDDT
92.79

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 0.596
Structure A0A0H3GNH3
Pocket Pocket 18
P2Rank 0.883
Structure A0A0H3GNH3
Pocket Pocket 1
ColabFold model
FPocket 0.957 · Pocket 2
P2Rank 0.895 · Pocket 1
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 81 / 4744 genomes with a hit
Normalized 0.017

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

5 GO

Gene Ontology (GO)

5
  • GO:0015343 Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: siderophore-iron(out) + H+(out) = siderophore-iron(in) + H+(in).
  • GO:0038023 Receiving a signal and transmitting it in the cell to initiate a change in cell activity. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
  • 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:0015891 The directed movement of siderophores, low molecular weight Fe(III)-chelating substances, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
  • GO:0015344 Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: siderophore-iron(ferrioxamine)(out) + H+(out) = siderophore-iron(ferrioxamine)(in) + H+(in).

Sequence Features

Domain/signature hits from InterPro and related databases.

18 records
Show feature table
Start End DB Term Name
169 709 Gene3D G3DSA:2.40.170.20 -
169 709 InterPro IPR036942 TonB-dependent receptor-like, beta-barrel domain superfamily
6 709 PANTHER PTHR32552 FERRICHROME IRON RECEPTOR-RELATED
6 709 InterPro IPR039426 TonB-dependent receptor-like
7 709 SUPERFAMILY SSF56935 Porins
34 166 FunFam G3DSA:2.170.130.10:FF:000001 Catecholate siderophore TonB-dependent receptor
53 709 NCBIfam TIGR01783 TonB-dependent siderophore receptor
53 709 InterPro IPR010105 TonB-dependent siderophore receptor
57 709 CDD cd01347 ligand_gated_channel
52 156 Pfam PF07715 TonB-dependent Receptor Plug Domain
52 156 InterPro IPR012910 TonB-dependent receptor, plug domain
229 708 Pfam PF00593 TonB dependent receptor
229 708 InterPro IPR000531 TonB-dependent receptor-like, beta-barrel
692 709 ProSitePatterns PS01156 TonB-dependent receptor proteins signature 2.
692 709 InterPro IPR010917 TonB-dependent receptor, conserved site
29 168 Gene3D G3DSA:2.170.130.10 -
29 168 InterPro IPR037066 TonB-dependent receptor, plug domain superfamily
166 709 FunFam G3DSA:2.40.170.20:FF:000005 TonB-dependent siderophore receptor

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.

3D visualization script Full viewer

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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_A0A0H3GNH3
AlphaFold — — full sequence — Viewing
ColabFold VK055_2400
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
21 0.48
47 0.003
36 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 Sticks Spheres Surfaces Score Probability Labels Zoom Positions
1 27.63 0.883
2 16.93 0.713
3 15.16 0.665
4 14.45 0.639
5 11.68 0.537

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.

57 records

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.

Show only:
Ligand Source crystal UniProt (homolog) MW · LogP · TPSA Lipinski PAINS SMILES
6L0
6Z8A
Q9I116 598.7 Da LogP 0.63 TPSA 208.9 2 viol. ✓ Clean C1CCNC(=O)CCC(=O)N(CCCCCNC(=O)CCC(=O)N(C/C=C/CC…
BOG
6BPO
P75780 292.4 Da LogP 0.16 TPSA 99.4 ✓ Ro5 ✓ Clean CCCCCCCCO[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)CO)…
C8E
5FP1
D0CAH3 306.4 Da LogP 2.41 TPSA 57.2 ✓ Ro5 ✓ Clean CCCCCCCCOCCOCCOCCOCCO
DPO
1QJQ
P06971 173.9 Da LogP -3.34 TPSA 135.6 ✓ Ro5 ✓ Clean [O-]P(=O)([O-])OP(=O)([O-])[O-]
EFE
3QLB
C5I2D9 378.3 Da LogP 1.23 TPSA 38.5 ✓ Ro5 ✓ Clean C[N@+]12[C@@H]3CS[C@H]1[C@@H]4CSC5=[N+]4[Fe@]2(…
FTT
1QJQ
P06971 244.4 Da LogP 3.74 TPSA 57.5 ✓ Ro5 ✓ Clean CCCCCCCCCCC[C@H](CC(=O)O)O
OES
1BY3
P06971 206.4 Da LogP 2.09 TPSA 37.3 ✓ Ro5 ✓ Clean CCCCCCCC[S@@](=O)CCO

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.