KpKP13 Protein target profile

UDP-N-acetylmuramoyl-L-alanyl-D-glutamate--2, 6-diaminopimelate ligase

Accession: KP13_31828

Gene: murE AHE46351.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GJ91
Length 495
Pocket druggability (P2Rank · AlphaFold DB model) 0.979
Direct ligand evidence 0 77 total records
Functional annotation 1 EC 10 GO
Target summary

Strong target candidate with converging metabolic, structural and chemical evidence.

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
3.1% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
95.58 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) 0.979
Structure A0A0H3GJ91
Pocket Pocket 1
Druggability (FPocket) 0.742
Structure A0A0H3GJ91
Pocket Pocket 2
ColabFold model
P2Rank 0.986 · Pocket 1
FPocket 0.426 · Pocket 14
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 146 / 4744 genomes with a hit
Prevalence 3.1%

Sequence

Primary amino-acid sequence viewer.

MADRNLRDLLAPWVPNAPERILREMTLDSRVAASGDLFIAVQGHQADGRRYIPQAIAQGVAAIIAEAQGEAKDGEIREMHGVPVIYLSQLNERLSALAGRFYHQPSQQLRLVGVTGTNGKTTTTQLLAQWAKLLGETSAVMGTVGNGLLDKVVPTENTTGSAVDVQHVLSSLVGQGATFGAMEVSSHGLVQHRVAALQFAASVFTNLSRDHLDYHGDMEHYEAAKWLLYSTHHCGQAIVNADDEVGCRWLAKLPDAVAVSMEDHINPNCHGRWLKATAVNYHDSGATIQFDSSWGKGEIESRLMGAFNVSNLLLALATLLALGYPLADLLKTAARLQPVCGRMEVFSAPGKPAVVVDYAHTPDALEKALQAARLHCSGKLWCVFGCGGDRDKGKRPLMGAIAEEFADIVVVTDDNPRTEEPRAIINDILAGMLDAGQAKVMEGRAEAVTNAVMQAKENDVVLVAGKGHEDYQIVGNRRLDYSDRVTVARLLGAVA

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 10 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

10
  • GO:0008360 Any process that modulates the surface configuration of a cell.
  • GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
  • GO:0009058 A cellular process consisting of the biochemical pathways by which a living organism synthesizes chemical substances. This typically represents the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
  • GO:0051301 The process resulting in division and partitioning of components of a cell to form more cells; may or may not be accompanied by the physical separation of a cell into distinct, individually membrane-bounded daughter cells.
  • GO:0016881 Catalysis of the ligation of an acid to an amino acid via a carbon-nitrogen bond, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0000287 Binding to a magnesium (Mg) ion.
  • GO:0008765 Catalysis of the reaction: meso-2,6-diaminopimelate + ATP + UDP-N-acetylmuramoyl-L-alanyl-D-glutamate = ADP + 2 H+ + phosphate + UDP-N-acetylmuramoyl-L-alanyl-D-gamma-glutamyl-meso-2,6-diaminoheptanedioate.
  • 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.
  • GO:0009252 The chemical reactions and pathways resulting in the formation of peptidoglycans, any of a class of glycoconjugates found 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.

28 records
Show feature table
Start End DB Term Name
344 495 FunFam G3DSA:3.90.190.20:FF:000006 UDP-N-acetylmuramoyl-L-alanyl-D-glutamate--2,6-diaminopimelate ligase
342 494 Gene3D G3DSA:3.90.190.20 -
342 494 InterPro IPR036615 Mur ligase, C-terminal domain superfamily
2 104 Gene3D G3DSA:3.40.1390.10 -
339 491 SUPERFAMILY SSF53244 MurD-like peptide ligases, peptide-binding domain
339 491 InterPro IPR036615 Mur ligase, C-terminal domain superfamily
339 425 Pfam PF02875 Mur ligase family, glutamate ligase domain
339 425 InterPro IPR004101 Mur ligase, C-terminal
25 102 Pfam PF01225 Mur ligase family, catalytic domain
25 102 InterPro IPR000713 Mur ligase, N-terminal catalytic domain
22 491 NCBIfam TIGR01085 UDP-N-acetylmuramyl-tripeptide synthetase
22 491 InterPro IPR005761 UDP-N-acetylmuramoylalanyl-D-glutamate-2,6-diaminopimelate ligase
4 491 Hamap MF_00208 UDP-N-acetylmuramoyl-L-alanyl-D-glutamate--2,6-diaminopimelate ligase [murE].
4 491 InterPro IPR005761 UDP-N-acetylmuramoylalanyl-D-glutamate-2,6-diaminopimelate ligase
2 104 FunFam G3DSA:3.40.1390.10:FF:000002 UDP-N-acetylmuramoyl-L-alanyl-D-glutamate--2,6-diaminopimelate ligase
328 495 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
306 327 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
114 318 Pfam PF08245 Mur ligase middle domain
114 318 InterPro IPR013221 Mur ligase, central
105 341 FunFam G3DSA:3.40.1190.10:FF:000006 UDP-N-acetylmuramoyl-L-alanyl-D-glutamate--2,6-diaminopimelate ligase
105 338 SUPERFAMILY SSF53623 MurD-like peptide ligases, catalytic domain
105 338 InterPro IPR036565 Mur-like, catalytic domain superfamily
105 341 Gene3D G3DSA:3.40.1190.10 -
105 341 InterPro IPR036565 Mur-like, catalytic domain superfamily
5 103 SUPERFAMILY SSF63418 MurE/MurF N-terminal domain
5 103 InterPro IPR035911 MurE/MurF, N-terminal
1 305 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
5 494 PANTHER PTHR23135 MUR LIGASE FAMILY MEMBER

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
0.979
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Surrounding area
Pocket 2 P2Rank #2
0.057
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Surrounding area
Pocket 3 P2Rank #3
0.023
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.009
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #2
0.742
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:116-122
UniProt: Binding site:157-157
UniProt: Binding site:158-159
UniProt: Binding site:185-185
UniProt: Binding site:191-191
UniProt: Binding site:193-193
UniProt: Binding site:27-27
UniProt: Binding site:29-29
UniProt: Binding site:390-390
UniProt: Binding site:414-417
UniProt: Binding site:44-46
UniProt: Binding site:465-465
UniProt: Binding site:469-469
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_A0A0H3GJ91
AlphaFold DB full sequence Viewing
ColabFold KP13_31828
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.

77 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 27 records from similar proteins
Structural ligands 18 0 loaded crystals
Measured bioactivity 9 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
1LG PDB via homolog 500.4 Da · LogP 4.08 · TPSA 99.5 Open detail RCSB PDB
2GN PDB via homolog Detail RCSB PDB
2LG PDB via homolog Detail RCSB PDB
ACP PDB via homolog Detail RCSB PDB
ANP 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
1LG RCSB PDB Q8DNV6 500.4 Da LogP 4.08 TPSA 99.5 1 viol. ✓ Clean c1c(c(cc(c1S(=O)(=O)N2CCOCC2)Cl)Cl)C(=O)Nc3c(c4…
2GN RCSB PDB Q8DNV6 659.6 Da LogP 3.94 TPSA 157.2 1 viol. ✓ Clean c1cc(ccc1CN2CCc3c(sc(c3C#N)NC(=O)c4cc(c(cc4Cl)C…
2LG RCSB PDB Q8DNV6 438.0 Da LogP 4.04 TPSA 90.3 ✓ Ro5 ✓ Clean CCN(CC)S(=O)(=O)c1ccc(c(c1)C(=O)Nc2c(c3c(s2)CCC…
ACP RCSB PDB Q9HVZ7 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)…
ANP RCSB PDB A0A0D5YEC3 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)…
API RCSB PDB P22188 190.2 Da LogP -1.02 TPSA 126.6 ✓ Ro5 ✓ Clean C(C[C@H](C(=O)O)N)C[C@@H](C(=O)O)N
IGM RCSB PDB Q8DNV6 607.5 Da LogP 4.46 TPSA 123.0 1 viol. ✓ Clean c1cc(ccc1CN2CCc3c(sc(c3C#N)NC(=O)c4cc(c(cc4Cl)C…
JHP RCSB PDB P22188 227.7 Da LogP 1.75 TPSA 46.9 ✓ Ro5 ✓ Clean Cn1cc(c(n1)C(=O)NC2CCCC2)Cl
LVV RCSB PDB P22188 239.3 Da LogP 1.23 TPSA 37.4 ✓ Ro5 ✓ Clean Cc1ccc(cc1)CN2CCS(=O)(=O)CC2
O3D RCSB PDB P22188 215.3 Da LogP 0.51 TPSA 50.5 ✓ Ro5 ✓ Clean c1cc(oc1)CN2CCS(=O)(=O)CC2
SYQ RCSB PDB P22188 204.3 Da LogP 1.92 TPSA 42.0 ✓ Ro5 ✓ Clean Cc1cccc(n1)C(=O)N[C@@H](C)C2CC2
SYZ RCSB PDB P22188 278.3 Da LogP 1.42 TPSA 66.5 ✓ Ro5 ✓ Clean Cc1cccc(c1)C(=O)NCCN2C(=O)CSC2=O
SZK RCSB PDB P22188 241.3 Da LogP 3.26 TPSA 43.0 ✓ Ro5 ✓ Clean CCn1c2ccccc2nc1NCc3ccco3
SZN RCSB PDB P22188 260.3 Da LogP 0.87 TPSA 66.5 ✓ Ro5 ✓ Clean Cc1cccc(c1)C(=O)NCCN2C(=O)CCC2=O
T3Z RCSB PDB P22188 204.3 Da LogP 1.92 TPSA 42.0 ✓ Ro5 ✓ Clean Cc1cccc(n1)C(=O)N[C@H](C)C2CC2
UAG RCSB PDB P22188 879.6 Da LogP -5.30 TPSA 427.7 3 viol. ✓ Clean C[C@@H](C(=O)N[C@H](CCC(=O)O)C(=O)O)NC(=O)[C@@H…
UML RCSB PDB Q2FZP6 1007.8 Da LogP -5.68 TPSA 482.8 3 viol. ✓ Clean C[C@@H](C(=O)N[C@H](CCC(=O)N[C@@H](CCCCN)C(=O)O…
WZD RCSB PDB P22188 213.2 Da LogP 2.77 TPSA 53.9 ✓ Ro5 ✓ Clean c1ccc2c(c1)[nH]c(n2)NCc3ccco3

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.