Protein target profile

KP13_31849

Beta-lactamase SHV 110

Genome: KpKP13 Gene: AHE44705.1 3D evidence: Experimental + ColabFold model UniProt P0AD64
Length 286
Pocket druggability 0.996
Direct ligand evidence 29 194 total records
Functional annotation 0 EC 4 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
0.5% 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.

Localization

Localization
Periplasmic

Structure confidence

ColabFold pLDDT
94.4 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

PDB experimental structure

The selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

FPocket 0.996
Structure 1VM1
Pocket Pocket 1
P2Rank 0.883
Structure 3MXR
Pocket Pocket 1
ColabFold model
FPocket 0.343 · Pocket 14
P2Rank 0.271 · Pocket 1
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 25 / 4744 genomes with a hit
Prevalence 0.5%

Cross-references

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

Chemistry

ChEMBL J01 ChEMBL CHEMBL212163 ChEMBL CHEMBL263746 ChEMBL CHEMBL4114803 ChEMBL CHEMBL4111477 ChEMBL CHEMBL4114749 ChEMBL CHEMBL124416 ChEMBL CHEMBL212760 ChEMBL CHEMBL378119 ChEMBL CHEMBL379856 ChEMBL CHEMBL380061 ChEMBL CHEMBL1689063 ChEMBL CHEMBL378041 ChEMBL CHEMBL385593 ChEMBL CHEMBL4106598 ChEMBL CHEMBL222375 ChEMBL CHEMBL35987 ChEMBL CHEMBL425963 ChEMBL CHEMBL4533632 ChEMBL CHEMBL4114669 ChEMBL CHEMBL212478 ChEMBL CHEMBL377382 ChEMBL CHEMBL4106976 ChEMBL CHEMBL4109897 ChEMBL CHEMBL268919 ChEMBL CHEMBL331090 ChEMBL CHEMBL379440 ChEMBL CHEMBL377001 ChEMBL CHEMBL388778 ChEMBL CHEMBL433726 ChEMBL CHEMBL6533 ChEMBL CHEMBL222922 ChEMBL CHEMBL416561 ChEMBL CHEMBL222866 ChEMBL CHEMBL211143 ChEMBL CHEMBL222758 ChEMBL CHEMBL396872 ChEMBL CHEMBL122450 ChEMBL CHEMBL4115687 ChEMBL CHEMBL355558 ChEMBL CHEMBL375172 ChEMBL CHEMBL6469 ChEMBL CHEMBL169392 ChEMBL CHEMBL4114672 ChEMBL BZB ChEMBL CHEMBL235293 ChEMBL CHEMBL235526 ChEMBL CHEMBL238243 ChEMBL CHEMBL397522 ChEMBL CHEMBL1578600 ChEMBL CHEMBL1206880 ChEMBL CHEMBL4114818 ChEMBL CHEMBL235292 ChEMBL CHEMBL36657 ChEMBL VA1 ChEMBL 2GK ChEMBL CHEMBL395398 ChEMBL CHEMBL235308 ChEMBL CHEMBL3949733 ChEMBL CHEMBL33711 ChEMBL CHEMBL4114697 ChEMBL CHEMBL33950 ChEMBL CHEMBL8290 ChEMBL CHEMBL4114754 ChEMBL CHEMBL6678 ChEMBL CHEMBL4114663 ChEMBL CHEMBL167539 ChEMBL CHEMBL353422 ChEMBL CHEMBL269471 ChEMBL CHEMBL236203 ChEMBL TAZ ChEMBL CHEMBL395186 ChEMBL CHEMBL4114788 ChEMBL CHEMBL237390 ChEMBL CHEMBL353613 ChEMBL CHEMBL4114713 ChEMBL CHEMBL366664 ChEMBL BJI ChEMBL CHEMBL1492629 ChEMBL CHEMBL287095 ChEMBL CHEMBL283629 ChEMBL CHEMBL284539 ChEMBL CHEMBL4114694 ChEMBL CHEMBL4114790 ChEMBL CHEMBL395017 ChEMBL CHEMBL396509 ChEMBL CHEMBL397438 ChEMBL CHEMBL235951 ChEMBL CHEMBL355165 ChEMBL CHEMBL230332 ChEMBL CHEMBL396998 ChEMBL CHEMBL4114696 ChEMBL CHEMBL4114757 ChEMBL CHEMBL287670 ChEMBL CHEMBL1573007 ChEMBL CHEMBL235523 ChEMBL CHEMBL396871 ChEMBL CHEMBL396889 ChEMBL CHEMBL396390 ChEMBL CHEMBL230859

Sequence

Primary amino-acid sequence viewer.

MRYIRLCIISLLATLPLAVHASPQPLEQIKQSESQLSGRVGMIEMDLASGRTLTAWRADERFPMMSTFKVVLCGAVLARVDAGDEQLERKIHYRQQDLVDYSPVSEKHLADGMTVGELCAAAITMSDNSAANLLLATVGGPAGLTAFLRQIDDNVTRLDRWETELNEALPGDARDTTTPASMAATLRKLLTSQRLSARSQRQLLQWMVDDRVAGPLIRSVLPAGWFIADKTGAGERGARGIVALLGPNNKAERIVVIYLRDTPASMAERNQQIAGIGAALIEHWQR

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

4 GO

Gene 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: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.
  • GO:0030655 The chemical reactions and pathways resulting in the breakdown of a beta-lactam antibiotic, any member of a class of natural or semisynthetic antibiotics whose characteristic feature is a strained, four-membered beta-lactam ring. They include the penicillins and many of the cephalosporins.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

31 records
Show feature table
Start End DB Term Name
22 286 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1 5 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.
24 284 PANTHER PTHR35333 BETA-LACTAMASE
24 284 InterPro IPR000871 Beta-lactamase, class-A
138 162 PRINTS PR00118 Beta-lactamase class A signature
138 162 InterPro IPR000871 Beta-lactamase, class-A
28 52 PRINTS PR00118 Beta-lactamase class A signature
28 52 InterPro IPR000871 Beta-lactamase, class-A
200 215 PRINTS PR00118 Beta-lactamase class A signature
200 215 InterPro IPR000871 Beta-lactamase, class-A
102 127 PRINTS PR00118 Beta-lactamase class A signature
102 127 InterPro IPR000871 Beta-lactamase, class-A
217 232 PRINTS PR00118 Beta-lactamase class A signature
217 232 InterPro IPR000871 Beta-lactamase, class-A
164 189 PRINTS PR00118 Beta-lactamase class A signature
164 189 InterPro IPR000871 Beta-lactamase, class-A
60 77 PRINTS PR00118 Beta-lactamase class A signature
60 77 InterPro IPR000871 Beta-lactamase, class-A
6 17 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
1 21 Phobius SIGNAL_PEPTIDE Signal peptide region
62 77 ProSitePatterns PS00146 Beta-lactamase class-A active site.
62 77 InterPro IPR023650 Beta-lactamase, class-A active site
26 283 SUPERFAMILY SSF56601 beta-lactamase/transpeptidase-like
26 283 InterPro IPR012338 Beta-lactamase/transpeptidase-like
1 21 SignalP_GRAM_POSITIVE SignalP-TM SignalP-TM
20 286 Gene3D G3DSA:3.40.710.10 -
20 286 InterPro IPR012338 Beta-lactamase/transpeptidase-like
46 258 Pfam PF13354 Beta-lactamase enzyme family
46 258 InterPro IPR045155 Beta-lactamase class A, catalytic domain
1 21 SignalP_GRAM_NEGATIVE SignalP-noTM SignalP-noTM
18 21 Phobius SIGNAL_PEPTIDE_C_REGION C-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 · FPocket

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

Site 1 FPocket #1
0.996
Unusual size
Show in viewer
Surrounding area
All structural evidence 44 experimental · 1 predicted

Structural evidence

44 + 1

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
PDB 1ONG
X-ray A Loaded
PDB 1Q2P
X-ray A Loaded
PDB 1RCJ
X-ray A Loaded
PDB 1SHV
X-ray A Loaded
PDB 1TDG
X-ray A Loaded
PDB 1TDL
X-ray A Loaded
PDB 1VM1
X-ray A Viewing
PDB 2A3U
X-ray A Loaded
PDB 2A49
X-ray A Loaded
PDB 2G2U
X-ray A Loaded
PDB 2G2W
X-ray A Loaded
PDB 2H0T
X-ray A Loaded
PDB 2H0Y
X-ray A Loaded
PDB 2H10
X-ray A Loaded
PDB 2H5S
X-ray A Loaded
PDB 2ZD8
X-ray A Loaded
PDB 3C4O
X-ray A Loaded
PDB 3C4P
X-ray A Loaded
PDB 3D4F
X-ray A Loaded
PDB 3MKE
X-ray A Loaded
PDB 3MKF
X-ray A Loaded
PDB 3MXR
X-ray A Loaded
PDB 3MXS
X-ray A Loaded
PDB 3N4I
X-ray A Loaded
PDB 3OPH
X-ray A Loaded
PDB 3OPL
X-ray A Loaded
PDB 3OPP
X-ray A Loaded
PDB 3OPR
X-ray A Loaded
PDB 3V50
X-ray A Loaded
PDB 3V5M
X-ray A Loaded
PDB 4FCF
X-ray A Loaded
PDB 4FD8
X-ray A Loaded
PDB 4FH2
X-ray A Loaded
PDB 4FH4
X-ray A Loaded
PDB 4GD6
X-ray A Loaded
PDB 4GD8
X-ray A Loaded
PDB 4GDB
X-ray A Loaded
PDB 4JPM
X-ray A Loaded
PDB 4MBF
X-ray A Loaded
PDB 4MBH
X-ray A Loaded
PDB 4MBK
X-ray A Loaded
PDB 4R3B
X-ray A Loaded
PDB 4ZAM
X-ray A Loaded
PDB 5EE8
X-ray A Loaded
ColabFold KP13_31849
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.

194 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 29 same-protein records
Transferred evidence 115 records from similar proteins
Structural ligands 44 28 loaded crystals
Measured bioactivity 100 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
0RJ PDB co-crystal 132.1 Da · LogP -1.86 · TPSA 92.4 Open detail RCSB PDB
0RN PDB co-crystal Detail RCSB PDB
17K PDB co-crystal Detail RCSB PDB
17O PDB co-crystal Detail RCSB PDB
1OG PDB co-crystal Detail RCSB PDB

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.

Show only:
Ligand Source crystal MW · LogP · TPSA Lipinski PAINS SMILES
0RJ RCSB PDB 132.1 Da LogP -1.86 TPSA 92.4 ✓ Ro5 ✓ Clean C([C@@H](C(=O)O)N)NC=O
0RN RCSB PDB 233.2 Da LogP -0.79 TPSA 91.8 ✓ Ro5 ✓ Clean CC1([C@@H](N2[C@H](S1(=O)=O)CC2=O)C(=O)O)C
17K RCSB PDB 458.5 Da LogP 2.38 TPSA 134.4 ✓ Ro5 ✓ Clean C[C@](COC(=O)Cc1ccccc1)([C@H](C(=O)O)Nc2c(cc3n2…
17O RCSB PDB 309.4 Da LogP 1.47 TPSA 84.2 ✓ Ro5 ✓ Clean c1c2n(nc1C3C(=CNC(=CS3)C(=O)O)C=O)CSC2
1OG RCSB PDB 403.4 Da LogP -0.09 TPSA 153.5 ✓ Ro5 ✓ Clean CC(=O)OC/C/1=C(/N=C\[C@H]([C@@H](S(=O)(=O)C1)C(…
2AW RCSB PDB 381.4 Da LogP -0.21 TPSA 167.3 ✓ Ro5 ✓ Clean C[C@](COC(=O)CCCCC(=O)O)([C@H](C(=O)O)NCCC=O)S(…
3GE RCSB PDB 265.3 Da LogP -0.90 TPSA 123.9 ✓ Ro5 ✓ Clean CC(C)([C@H](C(=O)O)N/C=C(\CO)/C=O)S(=O)O
AKR RCSB PDB 72.1 Da LogP 0.26 TPSA 37.3 ✓ Ro5 ✓ Clean C=CC(=O)O
CB4 RCSB PDB 330.1 Da LogP -1.56 TPSA 167.4 ✓ Ro5 ✓ Clean B(CNC(=O)C(=NOC(C)(C)C(=O)O)c1csc(n1)N)(O)O
CZ6 RCSB PDB 412.3 Da LogP 1.06 TPSA 145.4 ✓ Ro5 ✓ Clean B1(O[C@H](CC(O1)(C)C)C)CNC(=O)/C(=N\OC(C)(C)C(=…
CZ7 RCSB PDB 390.2 Da LogP -1.84 TPSA 162.9 ✓ Ro5 ✓ Clean B(CNC(=O)[C@@H](c1ccc(cc1)O)NC(=O)N2C=CN(C(=O)C…
CZ8 RCSB PDB 420.2 Da LogP -1.78 TPSA 159.5 ✓ Ro5 ✓ Clean B(CNC(=O)[C@@H](CCc1ccc(cc1)O)NC(=O)N2CCN(C(=O)…
CZ9 RCSB PDB 406.2 Da LogP -2.17 TPSA 159.5 ✓ Ro5 ✓ Clean B(CNC(=O)[C@@H](Cc1ccc(cc1)O)NC(=O)N2CCN(C(=O)C…
ESA RCSB PDB 110.1 Da LogP -0.11 TPSA 54.4 ✓ Ro5 ✓ Clean CCS(=O)(=O)O
LN1 RCSB PDB 490.5 Da LogP 1.79 TPSA 174.9 ✓ Ro5 Alert C[C@](COC(=O)Cc1ccc(c(c1)O)O)([C@H](C(=O)O)Nc2c…
MDD RCSB PDB 72.1 Da LogP -0.23 TPSA 34.1 ✓ Ro5 ✓ Clean C(C=O)C=O
MER RCSB PDB 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…
MXF RCSB PDB 426.5 Da LogP 0.28 TPSA 172.5 ✓ Ro5 ✓ Clean C[C@](COC(=O)NCCN)([C@H](C(=O)O)Nc1c(cc2n1cccc2…
NXL RCSB PDB 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
SA2 RCSB PDB 365.4 Da LogP -0.48 TPSA 167.3 ✓ Ro5 ✓ Clean C[C@](COC(=O)CCCC(=O)O)([C@H](C(=O)O)N\C=C\C=O)…
TAU RCSB PDB 125.1 Da LogP -1.17 TPSA 80.4 ✓ Ro5 ✓ Clean C(CS(=O)(=O)O)N
TBE RCSB PDB 302.3 Da LogP -1.60 TPSA 131.2 ✓ Ro5 ✓ Clean C[C@](Cn1ccnn1)([C@H](C(=O)O)N\C=C/C=O)S(=O)=O
TBI RCSB PDB 302.3 Da LogP -1.60 TPSA 131.2 ✓ Ro5 ✓ Clean C[C@](Cn1ccnn1)([C@H](C(=O)O)N\C=C\C=O)S(=O)=O
TEM RCSB PDB 157.2 Da LogP -0.76 TPSA 66.4 ✓ Ro5 ✓ Clean C(C=O)C(CN\C=C\C=O)O
TSL RCSB PDB 235.3 Da LogP -0.26 TPSA 103.7 ✓ Ro5 ✓ Clean CC(C)([C@H](C(=O)O)N/C=C/C=O)[S@@](=O)O
WY2 RCSB PDB 363.4 Da LogP 2.17 TPSA 104.3 ✓ Ro5 ✓ Clean c1c(nc2n1c3c(s2)CCC3)[C@H]4C(=CN=C(CS4)C(=O)O)C…
WY4 RCSB PDB 307.3 Da LogP 0.81 TPSA 93.8 ✓ Ro5 ✓ Clean c1c(nc2n1CCOC2)[C@H]3C(=CN=C(CS3)C(=O)O)C=O
ZXM RCSB PDB 324.1 Da LogP -1.22 TPSA 137.6 ✓ Ro5 ✓ Clean B([C@H](Cn1cc(nn1)C(=O)O)NC(=O)Cc2cccs2)(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.