KpATCC43816 Protein target profile

mepA

Accession: VK055_4795

Gene: AIK83322.1 mepA 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GR96
Length 274
Pocket druggability (P2Rank · AlphaFold DB model) 0.872
Functional annotation 1 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
No hit
Gut microbiome similarity
2.4% 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
93.31 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) 0.872
Structure A0A0H3GR96
Pocket Pocket 1
Druggability (FPocket) 0.248
Structure A0A0H3GR96
Pocket Pocket 1
ColabFold model
P2Rank 0.572 · Pocket 1
FPocket 0.346 · Pocket 1
Core conservation Accessory gene
Roary core
CoreCruncher accessory
Gut microbiome 115 / 4744 genomes with a hit
Prevalence 2.4%

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.

MKNTVIALLALLASAGSLAATPWQKITQPIGGSAQSIGAFSNGCIVGAEALPLSAPGYQVMRTDQRRYFGHPDLVQFIQRLSNQVHNKGMGTVLIGDMGMPAGGRFNGGHASHQTGLDVDIFLQLPQTRWTSSQLLKPQALDLVASDGKHVVPSLWSPQISQLIKLAAEDSEVTRIFVNPAIKQQLCLDAGSDRQWLRKVRPWFQHRAHMHVRLRCPAGSLECEDQAPPPPGDGCGAELQSWFEPPKPGSTPPVKKTPPPLPPSCQALLDEHVL

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 6 GO

Subcellular localization

Localization
Periplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

6
  • 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:0030288 The region between the inner (cytoplasmic or plasma) membrane and outer membrane of organisms with two membranes such as Gram negative bacteria. These periplasmic spaces are relatively thick and contain a thin peptidoglycan layer (PGL), also referred to as a thin cell wall.
  • GO:0006508 The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
  • GO:0046872 Binding to a metal ion.
  • GO:0004222 Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions.
  • GO:0000270 The chemical reactions and pathways involving peptidoglycans, any of a class of glycoconjugates found only in bacterial cell walls and consisting of long glycan strands of alternating residues of beta-(1,4) linked N-acetylglucosamine and N-acetylmuramic acid, cross-linked by short peptides.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

18 records
Show feature table
Start End DB Term Name
1 274 Hamap MF_01623 Penicillin-insensitive murein endopeptidase [mepA].
1 274 InterPro IPR005073 Peptidase M74, penicillin-insensitive murein endopeptidase
36 270 Pfam PF03411 Penicillin-insensitive murein endopeptidase
36 270 InterPro IPR005073 Peptidase M74, penicillin-insensitive murein endopeptidase
20 274 Gene3D G3DSA:3.30.1380.10 -
20 274 InterPro IPR009045 Hedgehog signalling/DD-peptidase zinc-binding domain superfamily
1 19 SignalP_EUK SignalP-noTM SignalP-noTM
15 19 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
1 19 Phobius SIGNAL_PEPTIDE Signal peptide region
21 272 SUPERFAMILY SSF55166 Hedgehog/DD-peptidase
21 272 InterPro IPR009045 Hedgehog signalling/DD-peptidase zinc-binding domain superfamily
246 265 MobiDBLite mobidb-lite consensus disorder prediction
4 14 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
1 19 SignalP_GRAM_POSITIVE SignalP-TM SignalP-TM
20 274 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1 274 PIRSF PIRSF018455 MepA
224 274 MobiDBLite mobidb-lite consensus disorder prediction
1 3 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.

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
0.872
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.026
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #1
0.248 Unusual size
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:110-110
UniProt: Binding site:113-113
UniProt: Binding site:120-120
UniProt: Binding site:147-147
UniProt: Binding site:150-150
UniProt: Binding site:211-211
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_A0A0H3GR96
AlphaFold DB full sequence Viewing
ColabFold VK055_4795
ColabFold full sequence Loaded

Cross-references

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