KpATCC43816 Protein target profile

alpha,alpha-phosphotrehalase

Accession: VK055_2813

Gene: AIK81402.1 treC 3D evidence: AlphaFold DB model + ColabFold model Metabolism 9 reactions UniProt A0A0H3GLQ0
Length 551
Pocket druggability (P2Rank · AlphaFold DB model) 0.912
Metabolic reactions 9
Chokepoint No
Direct ligand evidence 0 54 total records
Functional annotation 1 EC 5 GO
Target summary

Promising target candidate with multiple supporting evidence streams.

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
Hit
Human identity (%)
40.299 Lower values reduce human off-target concern.
Human E-value
3.12e-11
Gut microbiome similarity
6.7% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
60.478 Higher values support similarity to known essential genes.
DEG E-value
0.0 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
96.33 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

P2Rank's binding-site probability is the primary druggability signal shown across the app; FPocket's druggability score is shown alongside it for comparison. Both estimate small-molecule pocket quality after applying the curated structure priority — neither is experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

Druggability (P2Rank) 0.912
Structure A0A0H3GLQ0
Pocket Pocket 1
Druggability (FPocket) 0.575
Structure A0A0H3GLQ0
Pocket Pocket 13
ColabFold model
P2Rank 0.919 · Pocket 1
FPocket 0.666 · Pocket 15
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 318 / 4744 genomes with a hit
Prevalence 6.7%

Metabolic context

Reactions catalyzed, pathway membership, and centrality in the genome-scale metabolic network.

Explore metabolic network
Relative network centrality 0.0% more central than 0.0% of genes in this genome
Chokepoint Not a chokepoint
Catalyzed reactions

9 reactions mapped to this gene in the metabolic model. Open the full network to see each one, with substrates/products and the reaction-reaction map.

Imported from KpATCC43816.sbml · 2026-07-09

Sequence

Primary amino-acid sequence viewer.

MNHLPHWWQNGVIYQIYPKSFQDTTGSGTGDLRGVTARLDYLQKLGVDAIWLTPFYVSPQVDNGYDVANYTAIDPSYGTMADFDALVTEAKARGIRIVLDMVLNHTSTEHEWFRQSLNKESPYRQFYIWRDGEPDALPNNWRSKFGGNAWQWHADSGQYYLHLFAIEQADLNWENPAVRAELKKVCEFWADRGVDGLRLDVVNLISKDQTFPCDLDGDGRRFYTDGPRVHEFLQEMSRDVFTPRNLMTVGEMSSTSLEHCQQYAALDGRELSMTFNFHHLKVDYPGGEKWTLARPDYVALKALFRHWQQGMHNRAWNALFWCNHDQPRIVSRFGDEGEYRVTAAKMLAMVLHGMQGTPYIYQGEEIGMTNPHFSSISDYRDVESHNMFIERAAQGQSPDELLAILASKSRDNSRTPMPWHAGENGGFSDGEPWIGLGDNYQEINVEAALADPDSVFYAYQQLITLRKTLPLLTWGDYEDLLPEHPSLWCYRRQWQGQTLVVAANLSRELQAWQPAEAPGEWKMIISNYAETTPRPTGLTLRPFEAIWWLQG

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 5 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

5
  • GO:0008788 Catalysis of the reaction: alpha,alpha-trehalose 6-phosphate + H2O = D-glucose + D-glucose 6-phosphate.
  • GO:0005993 The chemical reactions and pathways resulting in the breakdown of trehalose, a disaccharide that consists of two molecules of glucose and is isomeric with sucrose.
  • GO:0005975 The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y.
  • GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
  • GO:0004556 Catalysis of the endohydrolysis of (1->4)-alpha-D-glucosidic linkages in polysaccharides containing three or more alpha-(1->4)-linked D-glucose units.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

21 records
Show feature table
Start End DB Term Name
107 175 FunFam G3DSA:3.90.400.10:FF:000002 Sucrose isomerase
30 372 Pfam PF00128 Alpha amylase, catalytic domain
30 372 InterPro IPR006047 Glycosyl hydrolase, family 13, catalytic domain
5 472 SUPERFAMILY SSF51445 (Trans)glycosidases
5 472 InterPro IPR017853 Glycoside hydrolase superfamily
5 547 PANTHER PTHR10357 ALPHA-AMYLASE FAMILY MEMBER
476 548 Gene3D G3DSA:2.60.40.1180 -
476 548 InterPro IPR013780 Glycosyl hydrolase, all-beta
475 549 SUPERFAMILY SSF51011 Glycosyl hydrolase domain
7 467 Gene3D G3DSA:3.20.20.80 Glycosidases
171 467 FunFam G3DSA:3.20.20.80:FF:000014 Alpha,alpha-phosphotrehalase
107 175 Gene3D G3DSA:3.90.400.10 -
107 175 InterPro IPR045857 Oligo-1,6-glucosidase, domain 2
7 549 NCBIfam TIGR02403 alpha,alpha-phosphotrehalase
7 549 InterPro IPR012769 Trehalose-6-phosphate hydrolase
459 548 Pfam PF11941 Domain of unknown function (DUF3459)
459 548 InterPro IPR022567 Glycosyl hydrolase, C-terminal (DUF3459)
9 467 CDD cd11333 AmyAc_SI_OligoGlu_DGase
15 414 SMART SM00642 aamy
15 414 InterPro IPR006047 Glycosyl hydrolase, family 13, catalytic domain
476 550 FunFam G3DSA:2.60.40.1180:FF:000007 Sucrose isomerase

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 · P2Rank

Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Pocket 1 P2Rank #1
0.912
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Surrounding area
Pocket 2 P2Rank #2
0.34
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Surrounding area
Pocket 3 P2Rank #3
0.184
Likely same site as FPocket 2 0.9 Å 8 shared residues 100% of smaller site
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Surrounding area
Pocket 4 P2Rank #4
0.099
Likely same site as FPocket 13 0.9 Å 8 shared residues 100% of smaller site
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Surrounding area
Pocket 5 P2Rank #5
0.075
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Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #13
0.575
Likely same site as P2Rank 4 0.9 Å 8 shared residues 100% of smaller site
Show in viewer
Surrounding area
Pocket 2 FPocket #2
0.489
Likely same site as P2Rank 3 0.9 Å 8 shared residues 100% of smaller site
Show in viewer
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_A0A0H3GLQ0
AlphaFold DB full sequence Viewing
ColabFold VK055_2813
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.

54 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 4 records from similar proteins
Structural ligands 3 0 loaded crystals
Measured bioactivity 1 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
CTS PDB via homolog 189.2 Da · LogP -2.48 · TPSA 84.2 Open detail RCSB PDB
FLC PDB via homolog Detail RCSB PDB
NOJ PDB via homolog Detail RCSB PDB
CHEMBL404271 ChEMBL via homolog · pchembl 6.47 (~338.8 nM) Detail ChEMBL
ZINC12501520 ZINC proposed compound · Tanimoto 1.000 Detail ZINC

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
CTS RCSB PDB Q2PS28 189.2 Da LogP -2.48 TPSA 84.2 ✓ Ro5 ✓ Clean C1C[N@]2C[C@@H]([C@H]([C@@H]([C@H]2[C@H]1O)O)O)O
FLC RCSB PDB D0VX20 189.1 Da LogP -5.25 TPSA 140.6 ✓ Ro5 ✓ Clean C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O
NOJ RCSB PDB D0VX20 163.2 Da LogP -2.97 TPSA 93.0 ✓ Ro5 ✓ Clean C1[C@@H]([C@H]([C@@H]([C@H](N1)CO)O)O)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.

Cross-references

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