Protein target profile

KP13_00002

putative transport protein hsrA

Genome: KpKP13 Gene: AHE47113.1 hsrA 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GK07
Length 465
Pocket druggability 0.881
Direct ligand evidence 0 78 total records
Functional annotation 0 EC 4 GO
Target summary

Strong target candidate with converging metabolic, structural and chemical evidence.

Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.

Terms and data sources used on this page

PDB: experimentally determined structures from the Protein Data Bank. These are the strongest structural evidence, but may cover only part of the protein.

AlphaFold DB model: a precomputed predicted structure downloaded from AlphaFold Database/UniProt, not an experiment performed here.

ColabFold model: a predicted structure generated for this workspace; interpret it with coverage and confidence.

pLDDT: confidence score for predicted structures. High values support local geometry; low values mean the region should not drive pocket interpretation.

FPocket / P2Rank: software tools that predict possible ligand-binding pockets on a 3D structure. They are useful screening signals, not experimental validation.

Druggability: a pocket-based estimate of whether a small molecule could bind productively. It does not mean a drug already exists.

PDB ligand: a compound observed in an experimental structure. Direct same-protein records are stronger than homolog-transferred records.

ChEMBL: a public database of measured compound bioactivity. Direct entries are stronger than entries transferred from similar proteins.

ZINC: a purchasable-compound database. Here it marks proposed candidates from chemical similarity, not measured binders.

LigQ / LigQ_2: an internal Target pipeline step that gathers PDB, ChEMBL, and ZINC ligand evidence for each protein.

Off-target: sequence similarity to proteins we prefer not to hit, such as human proteins or beneficial gut microbiome proteins.

DEG: Database of Essential Genes. A match suggests the protein resembles genes known to be essential in other organisms.

Roary / CoreCruncher: pan-genome tools used to decide whether a gene is core across analyzed strains or accessory/strain-specific.

EC / GO: functional annotations: EC describes enzyme reactions; GO describes biological process, molecular function, or cellular component.

KEGG pathway: a curated metabolic route label used here to group reactions imported from the metabolic model.

Chokepoint: a metabolic reaction that is the only producer or consumer of a metabolite in the imported model.

Prioritization evidence

Selectivity, essentiality, structural confidence, conservation, and predicted binding-site evidence.

Off-target risk

Human off-target
No hit
Gut microbiome similarity
2.8% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
N
DEG identity (%)
0.0 Higher values support similarity to known essential genes.

Localization

Localization
CytoplasmicMembrane

Structure confidence

ColabFold pLDDT
87.91 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

The selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

FPocket 0.881
Structure A0A0H3GK07
Pocket Pocket 1
P2Rank 0.97
Structure A0A0H3GK07
Pocket Pocket 1
ColabFold model
FPocket 0.834 · Pocket 29
P2Rank 0.85 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 132 / 4744 genomes with a hit
Prevalence 2.8%

Cross-references

External database identifiers for this protein, its structures, ligands, and metabolic reactions.

Sequence

Primary amino-acid sequence viewer.

MSGKKGRSMAGLPWIAAMAFFMQALDATILNTALPAIAHSLNRSPLAMQSAIISYTLTVAMLIPVSGWLADRFGTRRVFIIAVSLFTLGSLACALSSSLTELVIFRVIQGIGGAMMMPVARLALLRAYPRSELLPVLNFVTMPGLVGPILGPVLGGVFVTWASWHWIFLINIPIGVIGILYARKYMPNFTTPRRRFDIGGFLLFGLSLVLFSSGIELFGEKIVATWQALAVIAVSLLLLVAYVRHARRHPTPLISLSLFKTHTFSVGIAGNLATRLGTGCVPFLMPLMLQVGFGYPAIIAGCMIAPTAIGSIIAKSTVTQVLRWFGYRKTLVGITVFIGLMIAQFSLQSPEMPLWMLLLPLFVLGMAMSTQFTAMNTITLADLTDDNASSGNSLLAVTQQLSISLGVAISAAVLRFYEGFDNASTVQQFHYTFITMGVITIISALMFMLLRAKDGRNLISERHKR

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

4 GO

Gene Ontology (GO)

4
  • 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.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

63 records
Show feature table
Start End DB Term Name
12 455 ProSiteProfiles PS50850 Major facilitator superfamily (MFS) profile.
12 455 InterPro IPR020846 Major facilitator superfamily domain
14 452 PANTHER PTHR42718 MAJOR FACILITATOR SUPERFAMILY MULTIDRUG TRANSPORTER MFSC
125 135 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
136 158 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
429 450 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
256 457 FunFam G3DSA:1.20.1250.20:FF:000021 Putative multidrug resistance protein MdtD
16 451 CDD cd17503 MFS_LmrB_MDR_like
256 456 Gene3D G3DSA:1.20.1250.20 MFS general substrate transporter like domains
256 456 InterPro IPR036259 MFS transporter superfamily
326 347 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
164 182 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
325 347 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
394 417 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
98 102 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
159 163 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
46 66 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
244 263 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
15 39 PRINTS PR01036 Tetracycline resistance protein TetB signature
136 160 PRINTS PR01036 Tetracycline resistance protein TetB signature
397 416 PRINTS PR01036 Tetracycline resistance protein TetB signature
106 126 PRINTS PR01036 Tetracycline resistance protein TetB signature
200 218 PRINTS PR01036 Tetracycline resistance protein TetB signature
183 197 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.
78 97 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
352 374 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
35 45 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
13 222 FunFam G3DSA:1.20.1720.10:FF:000001 Putative multidrug resistance protein MdtD
219 223 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
164 183 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
14 451 SUPERFAMILY SSF103473 MFS general substrate transporter
14 451 InterPro IPR036259 MFS transporter superfamily
48 70 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
67 77 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
291 313 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
198 218 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
77 99 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
18 427 NCBIfam TIGR00711 DHA2 family efflux MFS transporter permease subunit
18 427 InterPro IPR004638 Drug resistance transporter EmrB-like
293 314 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
288 292 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
196 218 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
418 428 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
103 125 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
394 416 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
451 465 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
14 218 Gene3D G3DSA:1.20.1720.10 Multidrug resistance protein D
224 243 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
12 34 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
431 450 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
103 124 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
375 393 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
222 244 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
353 374 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
348 352 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
315 325 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
1 11 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
264 287 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
11 33 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
264 286 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
17 406 Pfam PF07690 Major Facilitator Superfamily
17 406 InterPro IPR011701 Major facilitator superfamily

3D structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; AlphaFold DB and ColabFold models typically cover the full protein but remain computational predictions.

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Pocket score High Medium Low
How colors and pocket overlays are used
Uniform protein color marks the displayed model as a single molecular object.
Experimental PDB structures may be colored by chain to distinguish subunits or copies present in the file.
Pocket colors and alpha spheres are evidence overlays for predicted binding cavities; they are not alternative protein chains.
'Alpha spheres' is FPocket's own cavity-shape geometry, imported when available and aligned with the loaded structure.
'Pocket atoms'/'Predicted site atoms' show the pocket's residue atoms instead: P2Rank reports residues rather than alpha spheres, and FPocket falls back to this when alpha-sphere geometry is unavailable or doesn't align.
'No pocket geometry' means neither alpha spheres nor residue-position data could be found for that pocket; the layer just highlights the same residues as 'Nearby residues'.
Pocket details Inspect a specific pocket, or open the full viewer

Binding pockets · FPocket

Druggability: high ≥ 0.7 · medium 0.4–0.69 · low < 0.4

Site 1 FPocket #1
0.881
Likely same site as P2Rank 1 6.2 Å 17 shared residues 77% of smaller site
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Surrounding area
Site 2 FPocket #14
0.246
Likely same site as P2Rank 3 5.3 Å 6 shared residues 55% of smaller site
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Surrounding area

Binding pockets · P2Rank

Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Site 1 P2Rank #1
0.97
Likely same site as FPocket 1 6.2 Å 17 shared residues 77% of smaller site
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Surrounding area
Site 2 P2Rank #2
0.692
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Surrounding area
Site 3 P2Rank #3
0.162
Likely same site as FPocket 14 5.3 Å 6 shared residues 55% of smaller site
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Surrounding area
Site 4 P2Rank #4
0.114
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Surrounding area
Site 5 P2Rank #5
0.099
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Surrounding area
All structural evidence 0 experimental · 2 predicted

Structural evidence

0 + 2

Experimental PDB entries plus predicted AlphaFold DB or ColabFold models. Click Switch to display a different loaded structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
AlphaFold DB AF_A0A0H3GK07
AlphaFold DB full sequence Viewing
ColabFold KP13_00002
ColabFold full sequence Loaded

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.

78 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 28 records from similar proteins
Structural ligands 5 0 loaded crystals
Measured bioactivity 23 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
CLM PDB via homolog 323.1 Da · LogP 0.91 · TPSA 112.7 Open detail RCSB PDB
DXC PDB via homolog Detail RCSB PDB
J0M PDB via homolog Detail RCSB PDB
KHJ PDB via homolog Detail RCSB PDB
LDA PDB via homolog Detail RCSB PDB

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
CLM RCSB PDB P0AEY8 323.1 Da LogP 0.91 TPSA 112.7 ✓ Ro5 ✓ Clean c1cc(ccc1[C@H]([C@@H](CO)NC(=O)C(Cl)Cl)O)[N+](=…
DXC RCSB PDB P0AEY8 392.6 Da LogP 4.48 TPSA 77.8 ✓ Ro5 ✓ Clean C[C@H](CCC(=O)O)[C@H]1CC[C@@H]2[C@@]1([C@H](C[C…
J0M RCSB PDB J7QAK3 196.2 Da LogP -3.49 TPSA 138.5 1 viol. ✓ Clean C([C@H]([C@@H]([C@@H]([C@H](C(=O)O)O)O)O)O)O
KHJ RCSB PDB P0AEY8 186.3 Da LogP 1.00 TPSA 7.8 ✓ Ro5 ✓ Clean C[n+]1ccc(cc1)c2cc[n+](cc2)C
LDA RCSB PDB P0AEY8 229.4 Da LogP 4.48 TPSA 23.1 ✓ Ro5 ✓ Clean CCCCCCCCCCCC[N+](C)(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.