KpKP13 Protein target profile

L-asparaginase 1

Accession: KP13_05661

Gene: AHE45067.1 ansA 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GN50
Length 339
Pocket druggability (P2Rank · AlphaFold DB model) 0.172
Direct ligand evidence 0 53 total records
Functional annotation 1 EC 4 GO
Target summary

Target candidate with partial support; inspect missing evidence before prioritizing.

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 (%)
58.586 Lower values reduce human off-target concern.
Human E-value
6.13e-34
Gut microbiome similarity
2.6% 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.

Structure confidence

ColabFold pLDDT
95.64 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) 0.172
Structure A0A0H3GN50
Pocket Pocket 1
Druggability (FPocket) 0.178
Structure A0A0H3GN50
Pocket Pocket 6
ColabFold model
P2Rank 0.234 · Pocket 1
FPocket 0.245 · Pocket 5
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 123 / 4744 genomes with a hit
Prevalence 2.6%

Sequence

Primary amino-acid sequence viewer.

MQKKSIYVAYTGGTIGMQRSEHGYVPVSGHLQRQLALMPEFHRPEMPDFTIHEYHPLMDSSDMTPEDWQHIADDIRSHYEEYDGFVILHGTDTMAFTASALSFMLENLGKPVIVTGSQIPLAELRSDGQINLLNALYVAANYPINEVALFFNNRLFRGNRTTKAHADGFDAFASPNLAPLLEAGIHIRRLGTPPAPQGSGELIVHPITPQPIGVVTIYPGISADVVRNFLRQPVKALILRSYGVGNAPQNGEFIQVLAEASQRGIVVVNLTQCMSGKVNMGGYATGNALAQAGVISGFDMTVEATLTKLHYLLSQQLDVDAIRAAMQQNLRGELTPDEA

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 4 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

4
  • GO:0006520 The chemical reactions and pathways involving amino acids, carboxylic acids containing one or more amino groups.
  • GO:0004067 Catalysis of the reaction: L-asparagine + H2O = L-aspartate + NH4+.
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0009066 OBSOLETE. The chemical reactions and pathways involving amino acids of the aspartate family, comprising asparagine, aspartate, lysine, methionine and threonine.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

36 records
Show feature table
Start End DB Term Name
1 208 Gene3D G3DSA:3.40.50.1170 -
1 208 InterPro IPR037152 L-asparaginase, N-terminal domain superfamily
84 94 ProSitePatterns PS00917 Asparaginase / glutaminase active site signature 2.
84 94 InterPro IPR027475 Asparaginase/glutaminase, active site 2
213 326 Pfam PF17763 Glutaminase/Asparaginase C-terminal domain
213 326 InterPro IPR040919 Asparaginase/glutaminase, C-terminal
209 336 Gene3D G3DSA:3.40.50.40 -
209 336 InterPro IPR027473 L-asparaginase, C-terminal
1 334 PIRSF PIRSF001220 L-ASNase_gatD
1 334 InterPro IPR006034 Asparaginase/glutaminase-like
3 335 SUPERFAMILY SSF53774 Glutaminase/Asparaginase
3 335 InterPro IPR036152 Asparaginase/glutaminase-like superfamily
1 208 FunFam G3DSA:3.40.50.1170:FF:000002 L-asparaginase 1
8 16 ProSitePatterns PS00144 Asparaginase / glutaminase active site signature 1.
8 16 InterPro IPR020827 Asparaginase/glutaminase, active site 1
4 329 ProSiteProfiles PS51732 Asparaginase / glutaminase domain profile.
4 329 InterPro IPR006034 Asparaginase/glutaminase-like
2 332 PIRSF PIRSF500176 L_ASNase
260 278 PRINTS PR00139 Asparaginase/glutaminase family signature
260 278 InterPro IPR006034 Asparaginase/glutaminase-like
83 101 PRINTS PR00139 Asparaginase/glutaminase family signature
83 101 InterPro IPR006034 Asparaginase/glutaminase-like
6 17 PRINTS PR00139 Asparaginase/glutaminase family signature
6 17 InterPro IPR006034 Asparaginase/glutaminase-like
2 336 SFLD SFLDS00057 Glutaminase/Asparaginase
2 337 PANTHER PTHR11707 L-ASPARAGINASE
2 337 InterPro IPR006034 Asparaginase/glutaminase-like
6 188 Pfam PF00710 Asparaginase, N-terminal
6 188 InterPro IPR027474 L-asparaginase, N-terminal
4 323 CDD cd08963 L-asparaginase_I
4 323 InterPro IPR041725 Type I (cytosolic) L-asparaginase
210 336 FunFam G3DSA:3.40.50.40:FF:000001 L-asparaginase 1
3 335 NCBIfam TIGR00519 type I asparaginase
3 335 InterPro IPR006033 Type I L-asparaginase family
5 323 SMART SM00870 Asparaginase_2
5 323 InterPro IPR006034 Asparaginase/glutaminase-like

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.

Download VMD script Full viewer

Loading 3D structure...

Drag to rotate — click the view, then scroll to zoom.

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
0.172
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.146
Show in viewer
Surrounding area
Pocket 3 P2Rank #3
0.024
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.024
Show in viewer
Surrounding area
Residue sets
UniProt: Active site:14-14
UniProt: Active site:91-91
UniProt: Binding site:60-60
UniProt: Binding site:91-92
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_A0A0H3GN50
AlphaFold DB full sequence Viewing
ColabFold KP13_05661
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.

53 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 3 records from similar proteins
Structural ligands 3 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
4CS PDB via homolog 142.2 Da · LogP -0.15 · TPSA 61.7 Open detail RCSB PDB
AEI PDB via homolog Detail RCSB PDB
FLC PDB via homolog Detail RCSB PDB
ZINC1532902 ZINC proposed compound · Tanimoto 0.700 Detail ZINC
ZINC2018106 ZINC proposed compound · Tanimoto 0.700 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
4CS RCSB PDB Q8TZE8 142.2 Da LogP -0.15 TPSA 61.7 ✓ Ro5 ✓ Clean CC1=N[C@@H](CCN1)C(=O)O
AEI RCSB PDB P00805 234.2 Da LogP -1.87 TPSA 152.9 ✓ Ro5 ✓ Clean C[C@H]([C@@H](C(=O)O)N)OC(=O)C[C@@H](C(=O)O)N
FLC RCSB PDB P00805 189.1 Da LogP -5.25 TPSA 140.6 ✓ Ro5 ✓ Clean C(C(=O)[O-])C(CC(=O)[O-])(C(=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.