Protein target profile

KP13_03674

ATP-dependent protease La

Genome: KpKP13 Gene: AHE46014.1 lon 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GJ60
Length 784
Pocket druggability 0.758
Direct ligand evidence 0 74 total records
Functional annotation 1 EC 10 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 (%)
54.762 Lower values reduce human off-target concern.
Human E-value
9.05e-63
Gut microbiome similarity
11.7% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Localization

Localization
Cytoplasmic

Structure confidence

ColabFold pLDDT
88.68 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 0.758
Structure A0A0H3GJ60
Pocket Pocket 7
P2Rank 0.783
Structure A0A0H3GJ60
Pocket Pocket 1
ColabFold model
FPocket 0.438 · Pocket 5
P2Rank 0.77 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 556 / 4744 genomes with a hit
Prevalence 11.7%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MNPERSERIEIPVLPLRDVVVYPHMVIPLFVGREKSIRCLEAAMDHDKKIMLVAQKEASTDEPGVNDLFTVGTVASILQMLKLPDGTVKVLVEGLQRARISALSDNGEHFSAKAEYLDSPAIDEREQEVLVRTAISQFEGYIKLNKKIPPEVLTSLNSIDDPARLADTIAAHMPLKLADKQSVLEMSDVNERLEYLMAMMESEIDLLQVEKRIRNRVKKQMEKSQREYYLNEQMKAIQKELGEMDDAPDENEALKRKIDAAKMPKEAKEKTEAELQKLKMMSPMSAEATVVRGYIDWMVQVPWNARSKVKKDLRQAQEILDTDHYGLERVKDRILEYLAVQSRVNKIKGPILCLVGPPGVGKTSLGQSIAKATGRKYVRMALGGVRDEAEIRGHRRTYIGSMPGKLIQKMAKVGVKNPLFLLDEIDKMSSDMRGDPASALLEVLDPEQNVAFNDHYLEVDYDLSDVMFVATSNSMNIPAPLLDRMEVIRLSGYTEDEKLNIAKRHLLPKQIERNALKKGELTVDDSAIIGIIRYYTREAGVRSLEREISKLCRKAVKQLLLDKSLKHIEINGENLHDYLGVQRFDYGRADSENRVGQVTGLAWTEVGGDLLTIETACVPGKGKLTYTGSLGEVMQESIQAALTVVRSRADKLGINADFYEKRDIHVHVPEGATPKDGPSAGIAMCTALVSCLTGNPVRADVAMTGEITLRGQVLPIGGLKEKLLAAHRGGIKTVLIPDENKRDLEEIPDNVIADLDIHPVKRIEEVLTLALQNEPFGMQVVTAK

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 10 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

10
  • GO:0016887 Catalysis of the reaction: ATP + H2O = ADP + H+ phosphate. ATP hydrolysis is used in some reactions as an energy source, for example to catalyze a reaction or drive transport against a concentration gradient.
  • GO:0004252 Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
  • GO:0030163 The chemical reactions and pathways resulting in the breakdown of a protein by the destruction of the native, active configuration, with or without the hydrolysis of peptide bonds.
  • GO:0004176 Catalysis of the hydrolysis of peptide bonds, driven by ATP hydrolysis.
  • GO:0043565 Binding to DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
  • GO:0006508 The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
  • GO:0034605 Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a heat stimulus, a temperature stimulus above the optimal temperature for that organism.
  • GO:0006515 The chemical reactions and pathways resulting in the breakdown of misfolded or attenuated proteins.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

52 records
Show feature table
Start End DB Term Name
313 490 Gene3D G3DSA:3.40.50.300 -
313 490 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
1 775 PIRSF PIRSF001174 Lon_proteas
1 775 InterPro IPR004815 Lon protease, bacterial/eukaryotic-type
348 492 SMART SM00382 AAA_5
348 492 InterPro IPR003593 AAA+ ATPase domain
120 245 FunFam G3DSA:1.20.58.1480:FF:000001 Lon protease
313 493 CDD cd19500 RecA-like_Lon
356 375 PRINTS PR00830 Endopeptidase La (Lon) serine protease (S16) signature
726 744 PRINTS PR00830 Endopeptidase La (Lon) serine protease (S16) signature
595 611 PRINTS PR00830 Endopeptidase La (Lon) serine protease (S16) signature
673 692 PRINTS PR00830 Endopeptidase La (Lon) serine protease (S16) signature
703 722 PRINTS PR00830 Endopeptidase La (Lon) serine protease (S16) signature
12 778 PANTHER PTHR10046 ATP DEPENDENT LON PROTEASE FAMILY MEMBER
12 778 InterPro IPR027065 Lon protease
1 118 FunFam G3DSA:2.30.130.40:FF:000001 Lon protease
190 227 Coils Coil Coil
595 771 SUPERFAMILY SSF54211 Ribosomal protein S5 domain 2-like
595 771 InterPro IPR020568 Ribosomal protein S5 domain 2-type fold
11 772 Hamap MF_01973 Lon protease [lon].
11 772 InterPro IPR027543 Lon protease, bacterial
592 773 ProSiteProfiles PS51786 Lon proteolytic domain profile.
592 773 InterPro IPR008269 Peptidase S16, Lon proteolytic domain
676 684 ProSitePatterns PS01046 ATP-dependent serine proteases, lon family, serine active site.
676 684 InterPro IPR008268 Peptidase S16, active site
352 489 Pfam PF00004 ATPase family associated with various cellular activities (AAA)
352 489 InterPro IPR003959 ATPase, AAA-type, core
12 771 NCBIfam TIGR00763 endopeptidase La
12 771 InterPro IPR004815 Lon protease, bacterial/eukaryotic-type
313 490 FunFam G3DSA:3.40.50.300:FF:000021 Lon protease homolog
120 245 Gene3D G3DSA:1.20.58.1480 -
491 584 Gene3D G3DSA:1.10.8.60 -
10 202 SMART SM00464 lon_5
10 202 InterPro IPR003111 Lon protease, N-terminal domain
585 772 FunFam G3DSA:3.30.230.10:FF:000010 Lon protease
10 201 Pfam PF02190 ATP-dependent protease La (LON) substrate-binding domain
10 201 InterPro IPR003111 Lon protease, N-terminal domain
585 772 Gene3D G3DSA:3.30.230.10 -
585 772 InterPro IPR014721 Ribosomal protein S5 domain 2-type fold, subgroup
491 584 FunFam G3DSA:1.10.8.60:FF:000035 Lon protease
570 772 Pfam PF05362 Lon protease (S16) C-terminal proteolytic domain
570 772 InterPro IPR008269 Peptidase S16, Lon proteolytic domain
313 587 SUPERFAMILY SSF52540 P-loop containing nucleoside triphosphate hydrolases
313 587 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
11 202 ProSiteProfiles PS51787 Lon N-terminal domain profile.
11 202 InterPro IPR003111 Lon protease, N-terminal domain
253 300 Gene3D G3DSA:1.20.5.5270 -
252 301 FunFam G3DSA:1.20.5.5270:FF:000002 Lon protease homolog
1 118 Gene3D G3DSA:2.30.130.40 -
1 118 InterPro IPR046336 Lon protease, N-terminal domain superfamily
10 201 SUPERFAMILY SSF88697 PUA domain-like
10 201 InterPro IPR015947 PUA-like 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 #7
0.758
Show in viewer
Surrounding area
Site 2 FPocket #44
0.29
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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
0.783
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Surrounding area
Site 2 P2Rank #2
0.302
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Surrounding area
Site 3 P2Rank #3
0.108
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Surrounding area
Site 4 P2Rank #4
0.074
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Surrounding area
Site 5 P2Rank #5
0.022
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Surrounding area
Residue sets
UniProt: Active site:636-636
UniProt: Active site:679-679
UniProt: Binding site:313-320
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_A0A0H3GJ60
AlphaFold DB full sequence Viewing
ColabFold KP13_03674
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.

74 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 24 records from similar proteins
Structural ligands 6 0 loaded crystals
Measured bioactivity 18 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
4KZ PDB via homolog 418.3 Da · LogP 0.56 · TPSA 124.4 Open detail RCSB PDB
AGS PDB via homolog Detail RCSB PDB
BO2 PDB via homolog Detail RCSB PDB
PE4 PDB via homolog Detail RCSB PDB
PE8 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
4KZ RCSB PDB A0A059VAZ3 418.3 Da LogP 0.56 TPSA 124.4 ✓ Ro5 ✓ Clean B([C@H](Cc1ccccc1)NC(=O)[C@H](Cc2ccccc2)NC(=O)c…
AGS RCSB PDB A0A059VAZ3 523.2 Da LogP -1.51 TPSA 262.1 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
BO2 RCSB PDB P36776 384.2 Da LogP 0.36 TPSA 124.4 ✓ Ro5 ✓ Clean B([C@H](CC(C)C)NC(=O)[C@H](Cc1ccccc1)NC(=O)c2cn…
PE4 RCSB PDB B6YU74 354.4 Da LogP 0.11 TPSA 84.8 ✓ Ro5 ✓ Clean CCOCCOCCOCCOCCOCCOCCOCCO
PE8 RCSB PDB B6YU74 370.4 Da LogP -0.91 TPSA 105.1 ✓ Ro5 ✓ Clean C(COCCOCCOCCOCCOCCOCCOCCO)O
UFY RCSB PDB P36776 384.2 Da LogP 0.36 TPSA 124.4 ✓ Ro5 ✓ Clean B([C@H](CC(C)C)NC(=O)[C@@H](Cc1ccccc1)NC(=O)c2c…

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.