KpKP13 Protein target profile

Membrane-bound lytic murein transglycosylase D

Accession: KP13_31636

Gene: mltD AHE46211.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A1Y0Q4J3
Length 455
Pocket druggability (P2Rank · AlphaFold DB model) 0.164
Direct ligand evidence 0 2 total records
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
2.0% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
42.063 Higher values support similarity to known essential genes.
DEG E-value
1.9199999999999998e-60 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
79.41 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) 0.164
Structure A0A1Y0Q4J3
Pocket Pocket 1
Druggability (FPocket) 0.311
Structure A0A1Y0Q4J3
Pocket Pocket 19
ColabFold model
P2Rank 0.11 · Pocket 1
FPocket 0.841 · Pocket 1
Core conservation Accessory gene
Roary core
CoreCruncher accessory
Gut microbiome 93 / 4744 genomes with a hit
Prevalence 2.0%

Sequence

Primary amino-acid sequence viewer.

MKARAILLASVLLVGCQASKHDGTVEQRAQSLSAAGQGEAGKFTSQARWLDDGTFYAQDQDLWTSIGDELKMGIPDNPRIREQKQKYLRNKSYLHDVTLRAEPYMYWIAGQVKKRNMPMELVLLPIVESAFDPHATSGANAAGIWQIIPSTGRNYGLKQTRSYDARRDVVASTTAALDMMQRLNKMFDGDWLLTVAAYNSGEGRVMKAVKANRSRGKPTDFWSLSLPHETKIYVPKMLALSDILKNSKRYGVKLPTADESRALARVRLDSPVDISQLADMAGMPVSKLKTFNAGVKGSTLGASGPKYVMVPQKHAAQLRESLASGDIAAVQPTQLADNTPLTSRSYKVRSGDTISGIASRLGVTTRDLQQWNNLRGSGLKVGQNLVIGAGSSAQRLANNSDSITYRVRKGDSLSSIAKRHGVNIRDVMRWNSDTDNLRPGDQLTLFVKNSDRPES

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 6 GO

Subcellular localization

Localization
Unknown

Enzyme Commission (EC)

1

Gene Ontology (GO)

6
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • 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.
  • GO:0008933 Catalysis of the cleavage of a peptidoglycan chain into a peptidoglycan chain with N-acetyl-1,6-anhydromuramyl-[peptide] at the reducing end + a peptidoglycan chain with N-acetylglucosamine at the non-reducing end. Includes endolytic transglycosylase activity that fragments the glycan chain internally and exolytic transgylcosylase activity that cleaves a terminal disaccharide from the end of the glycan strand.
  • GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
  • GO:0008932 Catalysis of the endolytic cleavage of the (1->4)-beta-glycosidic linkage between N-acetylmuramic acid (MurNAc) and N-acetylglucosamine (GlcNAc) residues in peptidoglycan with concomitant formation of a 1,6-anhydrobond in the MurNAc residue.
  • GO:0071555 A process that results in the assembly, arrangement of constituent parts, or disassembly of the cell wall, the rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal and most prokaryotic cells, maintaining their shape and protecting them from osmotic lysis.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

43 records
Show feature table
Start End DB Term Name
105 217 Pfam PF01464 Transglycosylase SLT domain
105 217 InterPro IPR008258 Transglycosylase SLT domain 1
403 446 SUPERFAMILY SSF54106 LysM domain
403 446 InterPro IPR036779 LysM domain superfamily
1 16 ProSiteProfiles PS51257 Prokaryotic membrane lipoprotein lipid attachment site profile.
403 445 CDD cd00118 LysM
403 445 InterPro IPR018392 LysM domain
19 455 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
344 387 SUPERFAMILY SSF54106 LysM domain
344 387 InterPro IPR036779 LysM domain superfamily
14 18 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
401 448 FunFam G3DSA:3.10.350.10:FF:000003 Membrane-bound lytic murein transglycosylase D
403 447 ProSiteProfiles PS51782 LysM domain profile.
403 447 InterPro IPR018392 LysM domain
124 152 ProSitePatterns PS00922 Prokaryotic transglycosylases signature.
124 152 InterPro IPR000189 Prokaryotic transglycosylase, active site
346 387 Pfam PF01476 LysM domain
346 387 InterPro IPR018392 LysM domain
405 445 Pfam PF01476 LysM domain
405 445 InterPro IPR018392 LysM domain
343 388 FunFam G3DSA:3.10.350.10:FF:000004 Membrane-bound lytic murein transglycosylase D
1 21 SignalP_GRAM_POSITIVE SignalP-TM SignalP-TM
112 242 CDD cd16894 MltD-like
404 446 SMART SM00257 LysM_2
404 446 InterPro IPR018392 LysM domain
345 388 SMART SM00257 LysM_2
345 388 InterPro IPR018392 LysM domain
1 18 SignalP_EUK SignalP-noTM SignalP-noTM
102 252 SUPERFAMILY SSF53955 Lysozyme-like
102 252 InterPro IPR023346 Lysozyme-like domain superfamily
401 448 Gene3D G3DSA:3.10.350.10 LysM domain
401 448 InterPro IPR036779 LysM domain superfamily
344 387 ProSiteProfiles PS51782 LysM domain profile.
344 387 InterPro IPR018392 LysM domain
1 18 Phobius SIGNAL_PEPTIDE Signal peptide region
5 13 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
100 253 FunFam G3DSA:1.10.530.10:FF:000004 Membrane-bound lytic murein transglycosylase D
342 394 Gene3D G3DSA:3.10.350.10 LysM domain
342 394 InterPro IPR036779 LysM domain superfamily
255 399 PANTHER PTHR33734 LYSM DOMAIN-CONTAINING GPI-ANCHORED PROTEIN 2
344 387 CDD cd00118 LysM
100 254 Gene3D G3DSA:1.10.530.10 -
1 4 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
0.164
Likely same site as FPocket 19 3.1 Å 9 shared residues 100% of smaller site
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Surrounding area
Pocket 2 P2Rank #2
0.073
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Surrounding area
Pocket 3 P2Rank #3
0.034
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Surrounding area
Pocket 4 P2Rank #4
0.029
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Surrounding area
Pocket 5 P2Rank #5
0.019
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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 #19
0.311
Likely same site as P2Rank 1 3.1 Å 9 shared residues 100% of smaller site
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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_A0A1Y0Q4J3
AlphaFold DB full sequence Viewing
ColabFold KP13_31636
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.

2 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 1 records from similar proteins
Structural ligands 1 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 1 similarity-based ZINC candidates
Best available ligand signal
BUL PDB via homolog 551.5 Da · LogP -5.13 · TPSA 267.3 Open detail RCSB PDB
ZINC34074657 ZINC proposed compound · Tanimoto 0.769 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
BUL RCSB PDB Q9HZI6 551.5 Da LogP -5.13 TPSA 267.3 3 viol. ✓ Clean CC(=O)N[C@@H]1[C@H]([C@@H]([C@H](O[C@H]1O[C@H]2…

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.