Protein profile

VK055_0336

fecCD transport family protein

Genome: KpATCC43816

Gene: AIK78962.1 Structure source: AlphaFold + ColabFold UniProt A0A0H3GUT4

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Amino acids 326

Annotations 4

Features 42

PDB binders 2

Druggability 0.455

Overview

Basic information about this protein and its source genome.

Accession: VK055_0336
Assembly: Klebsiella pneumoniae subsp. pneumoniae strain ATCC 43816 KPPR1, complete genome
Gene: AIK78962.1
Status: annotated
Amino acids: 326
Structure source: AlphaFold + ColabFold

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:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it. 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:0033214 A process in which iron (Fe3+) is solubilized by ferric iron-specific chelators, known as siderophores is imported into the cell by transmembrane transport or endocytosis.

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 (%): 51.111
DEG E-value: 3.55e-96
Localization: CytoplasmicMembrane
ColabFold pLDDT: 92.96

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 0.455

Structure A0A0H3GUT4

Pocket Pocket 8

P2Rank 0.288

Structure A0A0H3GUT4

Pocket Pocket 1

ColabFold model

FPocket 0.841 · Pocket 2

P2Rank 0.363 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 33 / 4744 genomes with a hit

Normalized 0.007

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

4 GO

Gene Ontology (GO)

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:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
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:0033214 A process in which iron (Fe3+) is solubilized by ferric iron-specific chelators, known as siderophores is imported into the cell by transmembrane transport or endocytosis.

Sequence Features

Domain/signature hits from InterPro and related databases.

42 records

Show feature table

Start	End	DB	Term	Name
265	270	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
181	201	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
162	180	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
4	15	Phobius	SIGNAL_PEPTIDE_H_REGION	Hydrophobic region of a signal peptide.
271	286	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
242	246	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
85	104	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
6	322	PANTHER	PTHR30472	FERRIC ENTEROBACTIN TRANSPORT SYSTEM PERMEASE PROTEIN
6	322	InterPro	IPR000522	ABC transporter, permease protein, BtuC-like
10	317	Pfam	PF01032	FecCD transport family
10	317	InterPro	IPR000522	ABC transporter, permease protein, BtuC-like
298	317	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
21	54	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
2	325	Gene3D	G3DSA:1.10.3470.10	ABC transporter involved in vitamin B12 uptake, BtuC
2	325	InterPro	IPR037294	ABC transporter, BtuC-like
7	29	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
1	3	Phobius	SIGNAL_PEPTIDE_N_REGION	N-terminal region of a signal peptide.
1	20	SignalP_EUK	SignalP-TM	SignalP-TM
108	130	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
318	326	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
1	20	Phobius	SIGNAL_PEPTIDE	Signal peptide region
16	20	Phobius	SIGNAL_PEPTIDE_C_REGION	C-terminal region of a signal peptide.
1	323	FunFam	G3DSA:1.10.3470.10:FF:000001	Vitamin B12 ABC transporter permease BtuC
287	297	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
131	136	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
137	159	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
110	130	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
137	161	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
85	104	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
5	317	SUPERFAMILY	SSF81345	ABC transporter involved in vitamin B12 uptake, BtuC
5	317	InterPro	IPR037294	ABC transporter, BtuC-like
202	221	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
55	76	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
247	264	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
77	84	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
54	76	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
298	317	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
72	316	CDD	cd06550	TM_ABC_iron-siderophores_like
222	241	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
179	201	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
230	252	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
105	109	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular 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_A0A0H3GUT4	AlphaFold	—	—	full sequence	—	Viewing
ColabFold VK055_0336	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
7				0.271
3				0.065
10				0.0
13				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	Score	Probability
1	6.72	0.288
2	4.75	0.173
3	3.38	0.096
4	2.58	0.06
5	2.23	0.045

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				0.841
1				0.089
13				0.044
4				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	Score	Probability
1	8.08	0.363
2	5.99	0.244
3	3.21	0.088
4	2.89	0.074
5	2.28	0.047

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
ANP	4R9U	P06609	506.2 Da LogP -2.06 TPSA 281.9	3 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`
LDA	4R9U	P06609	229.4 Da LogP 4.48 TPSA 23.1	✓ Ro5	✓ Clean	`CCCCCCCCCCCC[N+](C)(C)[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).

Ligand	Tanimoto	MW · LogP · TPSA	Lipinski	PAINS	SMILES
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-]`
ZINC12360002	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OP(=O…`
ZINC12360703	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OP(=O…`
ZINC12503599	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OP(=O…`
ZINC16546165	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CO[P@](=O)(O)OP(=O)(…`
ZINC31977053	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)OP(=O)…`
ZINC4806433	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OP(=O…`
ZINC53683898	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC8586019	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)OP(=O)…`
ZINC8586020	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC8586021	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@@](=O)(O)OP(=O…`
ZINC8586022	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC13518964	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@H](…`
ZINC1532515	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@H](O…`
ZINC1571045	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@@H]…`
ZINC1842158	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@H](O…`
ZINC2046931	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@H](…`
ZINC2126310	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC3201891	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](COP(=O)(O)O)[C@@H]…`
ZINC3201893	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@@H](…`
ZINC3830180	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](COP(=O)(O)O)[C@@H](…`
ZINC3860156	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC3977897	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](COP(=O)(O)O)[C@@H](O…`
ZINC4806442	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@H](O…`
ZINC8613167	0.741	347.2 Da LogP -1.86 TPSA 186.1	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(=O)(O)O)[C@H](O…`
ZINC4096224	0.729	346.2 Da LogP -1.90 TPSA 191.9	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](N)(=O)O)[C@@…`
ZINC12503850	0.726	427.3 Da LogP -2.04 TPSA 229.4	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)OS(=O)…`
ZINC141161066	0.726	427.3 Da LogP -2.04 TPSA 229.4	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)OS(=O)…`
ZINC141163786	0.726	427.3 Da LogP -2.04 TPSA 229.4	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)OS(=O)…`
ZINC4228246	0.726	427.3 Da LogP -2.04 TPSA 229.4	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)OS(=O…`
ZINC105372833	0.712	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@H](O…`
ZINC105372837	0.712	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@H](O…`
ZINC17107643	0.712	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@@H](…`
ZINC204538551	0.712	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@@H](…`
ZINC31475423	0.703	434.3 Da LogP -2.99 TPSA 238.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CO[P@@](=O)(O)OC(=O)…`
ZINC105469665	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)CP(=O…`
ZINC13527614	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)CP(=O)…`
ZINC219330894	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)CP(=O)…`
ZINC3873852	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)CP(=O)…`
ZINC3873853	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@](=O)(O)CP(=O…`
ZINC3873854	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)CP(=O)…`
ZINC3873855	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@](=O)(O)CP(=O…`
ZINC5615251	0.677	375.3 Da LogP -0.55 TPSA 164.1	1 viol.	✓ Clean	`COP(=O)(OC)OC[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@…`
ZINC5615253	0.677	375.3 Da LogP -0.55 TPSA 164.1	1 viol.	✓ Clean	`COP(=O)(OC)OC[C@@H]1O[C@@H](n2cnc3c(N)ncnc32)[C…`
ZINC5615258	0.677	375.3 Da LogP -0.55 TPSA 164.1	1 viol.	✓ Clean	`COP(=O)(OC)OC[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@…`
ZINC5615263	0.677	375.3 Da LogP -0.55 TPSA 164.1	1 viol.	✓ Clean	`COP(=O)(OC)OC[C@@H]1O[C@@H](n2cnc3c(N)ncnc32)[C…`
ZINC31516918	0.672	446.4 Da LogP -1.33 TPSA 218.2	1 viol.	✓ Clean	`CC(C)[C@H](N)C(=O)O[P@](=O)(O)OC[C@H]1O[C@@H](n…`

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.