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.
Main supporting evidence
Risks to review
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
- 0.1% 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
- 91.36 0-100 confidence; >70 supports local structural interpretation.
Binding-site evidence
AlphaFold DB / UniProt modelP2Rank'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.
Sequence
Primary amino-acid sequence viewer.
MKDTLMKKILLLHMLVFVSATLPISSVASDEVETLKCTIIADAITGNTLYETGECARRVSPCSSFKLPLAIMGFDSGILQSPKSPTWELKPEYNPSPRDRTYKQVYPALWQSDSVVWFSQQLTSRLGVDRFTEYVKKFEYGNQDVSGDSGKHNGLTQSWLMSSLTISPKEQIQFLLRFVAHKLPVSEAAYDMAYATIPQYQAAEGWAVHGKSGSGWLRDNNGKINESRPQGWFVGWAEKNGRQVVFARLEIGKEKSDIPGGSKAREDILVELPVLMGNK
Functional annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Subcellular localization
- Localization
- Unknown
Enzyme Commission (EC)
1Gene Ontology (GO)
4- GO:0008800 Catalysis of the reaction: a beta-lactam + H2O = a substituted beta-amino acid.
- GO:0017001 The chemical reactions and pathways resulting in the breakdown of antibiotic, a substance produced by or derived from certain fungi, bacteria, and other organisms, that can destroy or inhibit the growth of other microorganisms.
- GO:0008658 Binding to penicillin, an antibiotic that contains the condensed beta-lactamthiazolidine ring system.
- GO:0046677 Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.
Sequence domains and features
Domain and signature matches imported from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 26 | 279 | Gene3D | G3DSA:3.40.710.10 | - |
| 26 | 279 | InterPro | IPR012338 | Beta-lactamase/transpeptidase-like |
| 1 | 28 | SignalP_GRAM_POSITIVE | SignalP-TM | SignalP-TM |
| 1 | 28 | SignalP_GRAM_NEGATIVE | SignalP-noTM | SignalP-noTM |
| 30 | 279 | Phobius | NON_CYTOPLASMIC_DOMAIN | Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region. |
| 22 | 29 | Phobius | SIGNAL_PEPTIDE_C_REGION | C-terminal region of a signal peptide. |
| 10 | 21 | Phobius | SIGNAL_PEPTIDE_H_REGION | Hydrophobic region of a signal peptide. |
| 38 | 265 | SUPERFAMILY | SSF56601 | beta-lactamase/transpeptidase-like |
| 38 | 265 | InterPro | IPR012338 | Beta-lactamase/transpeptidase-like |
| 61 | 71 | ProSitePatterns | PS00337 | Beta-lactamase class-D active site. |
| 61 | 71 | InterPro | IPR002137 | Beta-lactamase, class-D active site |
| 1 | 20 | SignalP_EUK | SignalP-noTM | SignalP-noTM |
| 1 | 29 | Phobius | SIGNAL_PEPTIDE | Signal peptide region |
| 48 | 249 | Pfam | PF00905 | Penicillin binding protein transpeptidase domain |
| 48 | 249 | InterPro | IPR001460 | Penicillin-binding protein, transpeptidase |
| 1 | 9 | 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.
How colors and pocket overlays are used
Pocket details Inspect a specific pocket, or open the full viewer
- Method
- -
- Score
- -
- Visible layer
- -
- Residues
- -
- Pocket properties
- -
Selecting a pocket opens its details and centers the viewer without clearing other active layers. Use Focus this pocket when you want to hide the rest; use Surface for the wider residue environment.
Binding pockets · P2Rank
Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Binding pockets · FPocket
Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
Binding pockets · P2Rank
Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Binding pockets · FPocket
Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
All structural evidence
Structural evidence
0 + 2Experimental 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_B2CBF6
|
AlphaFold DB | — | — | full sequence | — | Viewing |
|
ColabFold
KP13_01389
|
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.
Structural and bioactivity evidence are both available for this target.
Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in Target, use Open crystal to inspect it in the structure viewer.
No PDB structure with a co-crystallized ligand found for this exact protein.
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.
| Ligand | Source crystal | UniProt (homolog) | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|---|
| 1S6 RCSB PDB | P0A0B0 | 403.5 Da LogP 1.84 TPSA 121.5 | ✓ Ro5 | ✓ Clean |
Cc1c(c(no1)c2ccccc2)C(=O)N[C@H](C=O)[C@@H]3N[C@…
|
|
| 5R7 RCSB PDB | A8FFI9 | 422.5 Da LogP -1.65 TPSA 171.2 | ✓ Ro5 | ✓ Clean |
C[C@H]1[C@H](C(=N[C@H]1[C@H](C=O)[C@@H](C)O)C(=…
|
|
| DRW RCSB PDB | P13661 | 422.5 Da LogP -1.65 TPSA 171.2 | ✓ Ro5 | ✓ Clean |
C[C@H]1[C@@H](C(=N[C@H]1[C@H](C=O)[C@@H](C)O)C(…
|
|
| FLC RCSB PDB | A8FFI9 | 189.1 Da LogP -5.25 TPSA 140.6 | ✓ Ro5 | ✓ Clean |
C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O
|
|
| MER RCSB PDB | Q51400 | 385.5 Da LogP -0.36 TPSA 119.0 | ✓ Ro5 | ✓ Clean |
C[C@@H]1[C@@H](NC(=C1S[C@H]2C[C@H](NC2)C(=O)N(C…
|
|
| NXL RCSB PDB | P0A0B1 | 267.3 Da LogP -2.21 TPSA 139.0 | ✓ Ro5 | ✓ Clean |
C1C[C@H](N(C[C@@H]1NOS(=O)(=O)O)C=O)C(=O)N
|
Experimental bioactivity from ChEMBL measured directly on this protein. Score = pchembl (−log Ki/IC₅₀; higher = more potent).
No ChEMBL bioactivity data found for this exact protein.
Bioactivity inferred from similar proteins in ChEMBL. Score = pchembl (−log Ki/IC₅₀; higher = more potent).
| Ligand | UniProt (homolog) | pchembl | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|---|
| CHEMBL6461 ChEMBL | P13661 | 7.00 ~100.0 nM | 292.2 Da LogP -5.07 TPSA 118.4 | ✓ Ro5 | ✓ Clean |
C[C@]1(/C=C/C#N)[C@H](C(=O)[O-])N2C(=O)C[C@H]2S…
|
| CHEMBL1689063 ChEMBL | P13661 | 6.89 ~128.8 nM | 265.2 Da LogP -1.53 TPSA 130.2 | ✓ Ro5 | ✓ Clean |
NC(=O)[C@@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(=O)O
|
Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).
| Ligand | Tanimoto | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|
| ZINC1551650 ZINC | 1.000 | 265.2 Da LogP -1.53 TPSA 130.2 | ✓ Ro5 | ✓ Clean |
NC(=O)[C@H]1CC[C@H]2CN1C(=O)N2OS(=O)(=O)O
|
| ZINC33979726 ZINC | 1.000 | 265.2 Da LogP -1.53 TPSA 130.2 | ✓ Ro5 | ✓ Clean |
NC(=O)[C@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(=O)O
|
| ZINC3966153 ZINC | 1.000 | 265.2 Da LogP -1.53 TPSA 130.2 | ✓ Ro5 | ✓ Clean |
NC(=O)[C@@H]1CC[C@H]2CN1C(=O)N2OS(=O)(=O)O
|
| ZINC9302239 ZINC | 1.000 | 265.2 Da LogP -1.53 TPSA 130.2 | ✓ Ro5 | ✓ Clean |
NC(=O)[C@@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(=O)O
|
| ZINC15415787 ZINC | 0.767 | 419.5 Da LogP 1.73 TPSA 141.8 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@H](C(=O)O)[C@@H]1N[…
|
| ZINC15415790 ZINC | 0.767 | 419.5 Da LogP 1.73 TPSA 141.8 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@@H](C(=O)O)[C@@H]1N…
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| ZINC15415793 ZINC | 0.767 | 419.5 Da LogP 1.73 TPSA 141.8 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@H](C(=O)O)[C@H]1N[C…
|
| ZINC15415796 ZINC | 0.767 | 419.5 Da LogP 1.73 TPSA 141.8 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@@H](C(=O)O)[C@H]1N[…
|
| ZINC205497470 ZINC | 0.644 | 322.3 Da LogP -1.84 TPSA 145.3 | ✓ Ro5 | ✓ Clean |
CC(=O)NNC(=O)[C@@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(=…
|
| ZINC207610051 ZINC | 0.638 | 324.3 Da LogP -2.00 TPSA 151.5 | ✓ Ro5 | ✓ Clean |
NCCONC(=O)[C@@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(=O)O
|
| ZINC43206319 ZINC | 0.604 | 348.4 Da LogP -1.14 TPSA 128.3 | ✓ Ro5 | ✓ Clean |
O=C(NC1CCNCC1)[C@@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(…
|
| ZINC79016947 ZINC | 0.604 | 348.4 Da LogP -1.14 TPSA 128.3 | ✓ Ro5 | ✓ Clean |
O=C(NC1CCNCC1)[C@H]1CC[C@H]2CN1C(=O)N2OS(=O)(=O…
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| ZINC79016957 ZINC | 0.604 | 348.4 Da LogP -1.14 TPSA 128.3 | ✓ Ro5 | ✓ Clean |
O=C(NC1CCNCC1)[C@@H]1CC[C@H]2CN1C(=O)N2OS(=O)(=…
|
| ZINC204964427 ZINC | 0.595 | 247.2 Da LogP -0.49 TPSA 110.9 | ✓ Ro5 | ✓ Clean |
N#C[C@@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(=O)O
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| ZINC219376998 ZINC | 0.595 | 247.2 Da LogP -0.49 TPSA 110.9 | ✓ Ro5 | ✓ Clean |
N#C[C@H]1CC[C@H]2CN1C(=O)N2OS(=O)(=O)O
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| ZINC219377080 ZINC | 0.595 | 247.2 Da LogP -0.49 TPSA 110.9 | ✓ Ro5 | ✓ Clean |
N#C[C@@H]1CC[C@H]2CN1C(=O)N2OS(=O)(=O)O
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| ZINC1857655139 ZINC | 0.585 | 393.4 Da LogP -0.48 TPSA 145.5 | ✓ Ro5 | ✓ Clean |
CCOC(=O)C(C)(C)COS(=O)(=O)ON1C(=O)N2C[C@H]1CC[C…
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| ZINC255993610 ZINC | 0.577 | 471.9 Da LogP 2.52 TPSA 141.8 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2c(F)cccc2Cl)c1C(=O)N[C@H](C(=O)O)[C@@…
|
| ZINC77292630 ZINC | 0.577 | 471.9 Da LogP 2.52 TPSA 141.8 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2c(F)cccc2Cl)c1C(=O)N[C@@H](C(=O)O)[C@…
|
| ZINC217927881 ZINC | 0.569 | 377.4 Da LogP -2.25 TPSA 157.4 | ✓ Ro5 | ✓ Clean |
O=C(NNC(=O)[C@@H]1CC[C@@H]2CN1C(=O)N2OS(=O)(=O)…
|
| ZINC114990116 ZINC | 0.563 | 275.3 Da LogP 0.87 TPSA 75.9 | ✓ Ro5 | ✓ Clean |
NC(=O)[C@@H]1CC[C@@H]2CN1C(=O)N2OCc1ccccc1
|
| ZINC114990119 ZINC | 0.563 | 275.3 Da LogP 0.87 TPSA 75.9 | ✓ Ro5 | ✓ Clean |
NC(=O)[C@@H]1CC[C@H]2CN1C(=O)N2OCc1ccccc1
|
| ZINC114990120 ZINC | 0.563 | 275.3 Da LogP 0.87 TPSA 75.9 | ✓ Ro5 | ✓ Clean |
NC(=O)[C@H]1CC[C@H]2CN1C(=O)N2OCc1ccccc1
|
| ZINC350748 ZINC | 0.534 | 244.3 Da LogP 2.79 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)NC(C)C
|
| ZINC339747 ZINC | 0.533 | 272.3 Da LogP 3.57 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
CCC(CC)NC(=O)c1c(-c2ccccc2)noc1C
|
| ZINC21984184 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@@H]1C(S[C@@H]2CN[C@H](C(=O)N(C)C)C2)=C(C(=O…
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| ZINC245204572 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@@H]1C(S[C@@H]2CN[C@H](C(=O)N(C)C)C2)=C(C(=O…
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| ZINC245204573 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@H](O)[C@@H]1C(=O)N2C(C(=O)O)=C(S[C@@H]3CN[C…
|
| ZINC28636621 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@@H](O)[C@H]1C(=O)N2C(C(=O)O)=C(S[C@@H]3CN[C…
|
| ZINC3808779 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@@H](O)[C@H]1C(=O)N2C(C(=O)O)=C(S[C@@H]3CN[C…
|
| ZINC44672480 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@@H](O)[C@H]1C(=O)N2C(C(=O)O)=C(S[C@@H]3CN[C…
|
| ZINC44675971 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@@H](O)[C@@H]1C(=O)N2C(C(=O)O)=C(S[C@@H]3CN[…
|
| ZINC5736072 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@H](O)[C@@H]1C(=O)N2C(C(=O)O)=C(S[C@@H]3CN[C…
|
| ZINC5736130 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@H](O)[C@@H]1C(=O)N2C(C(=O)O)=C(S[C@@H]3CN[C…
|
| ZINC95486475 ZINC | 0.530 | 383.5 Da LogP -0.31 TPSA 110.2 | ✓ Ro5 | ✓ Clean |
C[C@H]1C(S[C@@H]2CN[C@H](C(=O)N(C)C)C2)=C(C(=O)…
|
| ZINC5443820 ZINC | 0.515 | 364.5 Da LogP 4.98 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@@H](C)C12CC3CC(CC(C…
|
| ZINC5443822 ZINC | 0.515 | 364.5 Da LogP 4.98 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@H](C)C12CC3CC(CC(C3…
|
| ZINC176196 ZINC | 0.508 | 306.4 Da LogP 4.14 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@@H](C)c1ccccc1
|
| ZINC176198 ZINC | 0.508 | 306.4 Da LogP 4.14 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@H](C)c1ccccc1
|
| ZINC13744465 ZINC | 0.500 | 286.4 Da LogP 3.81 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@H](C)C(C)(C)C
|
| ZINC13744467 ZINC | 0.500 | 286.4 Da LogP 3.81 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@@H](C)C(C)(C)C
|
| ZINC220881117 ZINC | 0.500 | 277.3 Da LogP -1.36 TPSA 130.2 | ✓ Ro5 | ✓ Clean |
CC1=C[C@@H]2CN(C(=O)N2OS(=O)(=O)O)[C@@H]1C(N)=O
|
| ZINC318763 ZINC | 0.500 | 334.4 Da LogP 4.40 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@@H](C)CCc1ccccc1
|
| ZINC318764 ZINC | 0.500 | 334.4 Da LogP 4.40 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@H](C)CCc1ccccc1
|
| ZINC860138 ZINC | 0.500 | 258.3 Da LogP 3.18 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
CC[C@@H](C)NC(=O)c1c(-c2ccccc2)noc1C
|
| ZINC860139 ZINC | 0.500 | 258.3 Da LogP 3.18 TPSA 55.1 | ✓ Ro5 | ✓ Clean |
CC[C@H](C)NC(=O)c1c(-c2ccccc2)noc1C
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| ZINC95955756 ZINC | 0.500 | 288.3 Da LogP 2.24 TPSA 92.4 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@@H](C)CC(=O)O
|
| ZINC95955757 ZINC | 0.500 | 288.3 Da LogP 2.24 TPSA 92.4 | ✓ Ro5 | ✓ Clean |
Cc1onc(-c2ccccc2)c1C(=O)N[C@H](C)CC(=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.