KpATCC43816 Protein target profile

mutL

Accession: VK055_2896

Gene: mutL AIK81485.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A2X3C434
Length 619
Pocket druggability (P2Rank · AlphaFold DB model) 0.774
Direct ligand evidence 0 53 total records
Functional annotation 0 EC 6 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 (%)
47.368 Lower values reduce human off-target concern.
Human E-value
7.22e-09
Gut microbiome similarity
2.5% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
53.595 Higher values support similarity to known essential genes.
DEG E-value
5.900000000000001e-43 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
81.78 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) 0.774
Structure A0A2X3C434
Pocket Pocket 1
Druggability (FPocket) 0.335
Structure A0A2X3C434
Pocket Pocket 20
ColabFold model
P2Rank 0.82 · Pocket 1
FPocket 0.192 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 120 / 4744 genomes with a hit
Prevalence 2.5%

Metabolic context

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

This protein is not associated with the imported metabolic network for this genome.

Browse the genome's metabolic network

Imported from KpATCC43816.sbml · 2026-07-09

Sequence

Primary amino-acid sequence viewer.

MPIQVLPPQLANQIAAGEVVERPASVVKELVENSLDAGATRIDIDIERGGAKLIRIRDNGSGIKKDELALALARHATSKIASLDDLEAIISLGFRGEALASISSVARLTLTSRTAEQQEAWQAYAEGRDQVVTVKPAAHPVGTTLEVLDLFYNTPARRKFMRTEKTEFGHIDEVVRRIALARFDVTINLSHNGKVMRQYRGVAQDGQRERRLGTICGAAFLEHALAIEWQHGDLTLRGWVADPLHTTPALAEIQYCYVNGRMMRDRLINHAIRQACEDKLGADQQPAFVLYLEIDPHQVDVNVHPAKHEVRFHQSRLVHDFIYQGVLSVLQQQLDAPLAEKDDPPAPRPMPENRIAAGGNQFARPAEARETAARFSITPSREPAASSGKPGGASWPHAQPGYQKQQGALYRQLLDTPTAPKPALQPPAAAELAGHSQSFGRVLTIVGGDCALLEREGGLALLSLTVAERWLRQAQLTPGAEAVCAQPLLIPLRLKVTEGEKQALAAAQPALAQLGIDVHTDALHVTVRAVPLPLRQQNLQILIPELIGYLAQQNAFDVGNIAQWMARNLTSEQTSWNMAQAIALLADVERLCPQLVRTPPGGLLQPVDLHSAMNALKDE

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

6 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

6
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0006298 A system for the correction of errors in which an incorrect base, which cannot form hydrogen bonds with the corresponding base in the parent strand, is incorporated into the daughter strand. The mismatch repair system promotes genomic fidelity by repairing base-base mismatches, insertion-deletion loops and heterologies generated during DNA replication and recombination.
  • GO:0030983 Binding to a double-stranded DNA region containing one or more mismatches.
  • 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:0032300 Any complex formed of proteins that act in mismatch repair.
  • GO:0140664 A molecule that recognises toxic DNA structures, and initiates a signaling response, driven by ATP hydrolysis.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

37 records
Show feature table
Start End DB Term Name
191 331 SUPERFAMILY SSF54211 Ribosomal protein S5 domain 2-like
191 331 InterPro IPR020568 Ribosomal protein S5 domain 2-type fold
483 571 FunFam G3DSA:3.30.1370.100:FF:000002 DNA mismatch repair protein MutL
24 120 Pfam PF13589 Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase
3 551 NCBIfam TIGR00585 DNA mismatch repair endonuclease MutL
3 551 InterPro IPR002099 DNA mismatch repair protein MutL/Mlh/PMS
10 196 CDD cd16926 HATPase_MutL-MLH-PMS-like
1 209 FunFam G3DSA:3.30.565.10:FF:000003 DNA mismatch repair endonuclease MutL
1 616 Hamap MF_00149 DNA mismatch repair protein MutL [mutL].
1 616 InterPro IPR020667 DNA mismatch repair protein, MutL
1 200 SUPERFAMILY SSF55874 ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
1 200 InterPro IPR036890 Histidine kinase/HSP90-like ATPase superfamily
439 616 Gene3D G3DSA:3.30.1540.20 -
439 616 InterPro IPR042120 MutL, C-terminal domain, dimerisation subdomain
439 570 Pfam PF08676 MutL C terminal dimerisation domain
439 570 InterPro IPR014790 MutL, C-terminal, dimerisation
1 339 PANTHER PTHR10073 DNA MISMATCH REPAIR PROTEIN MLH, PMS, MUTL
1 339 InterPro IPR038973 DNA mismatch repair protein MutL/Mlh/Pms-like
336 427 MobiDBLite mobidb-lite consensus disorder prediction
208 331 CDD cd03482 MutL_Trans_MutL
217 329 Gene3D G3DSA:3.30.230.10 -
217 329 InterPro IPR014721 Ribosomal protein S5 domain 2-type fold, subgroup
1 216 Gene3D G3DSA:3.30.565.10 -
1 216 InterPro IPR036890 Histidine kinase/HSP90-like ATPase superfamily
442 577 SMART SM00853 MutL_C_2
442 577 InterPro IPR014790 MutL, C-terminal, dimerisation
217 329 FunFam G3DSA:3.30.230.10:FF:000013 DNA mismatch repair endonuclease MutL
483 571 Gene3D G3DSA:3.30.1370.100 -
483 571 InterPro IPR042121 MutL, C-terminal domain, regulatory subdomain
438 617 SUPERFAMILY SSF118116 DNA mismatch repair protein MutL
438 617 InterPro IPR037198 MutL, C-terminal domain superfamily
93 99 ProSitePatterns PS00058 DNA mismatch repair proteins mutL / hexB / PMS1 signature.
93 99 InterPro IPR014762 DNA mismatch repair, conserved site
212 331 SMART SM01340 DNA_mis_repair_2
212 331 InterPro IPR013507 DNA mismatch repair protein, S5 domain 2-like
214 330 Pfam PF01119 DNA mismatch repair protein, C-terminal domain
214 330 InterPro IPR013507 DNA mismatch repair protein, S5 domain 2-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
0.774
Likely same site as FPocket 7 1.1 Å 27 shared residues 96% of smaller site
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.465
Show in viewer
Surrounding area
Pocket 3 P2Rank #3
0.067
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.036
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #20
0.335 Unusual size
Show in viewer
Surrounding area
Pocket 2 FPocket #7
0.268 Unusual size
Likely same site as P2Rank 1 1.1 Å 27 shared residues 96% 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_A0A2X3C434
AlphaFold DB full sequence Viewing
ColabFold VK055_2896
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
ACP PDB via homolog 505.2 Da · LogP -1.52 · TPSA 269.9 Open detail RCSB PDB
AGS PDB via homolog Detail RCSB PDB
ANP PDB via homolog Detail RCSB PDB
ZINC219330894 ZINC proposed compound · Tanimoto 0.873 Detail ZINC
ZINC12360002 ZINC proposed compound · Tanimoto 0.855 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
ACP RCSB PDB O67518 505.2 Da LogP -1.52 TPSA 269.9 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
AGS RCSB PDB P54278 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)…
ANP RCSB PDB P23367 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)…

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.