KpATCC43816 Protein target profile

ribosomal protein L2

Accession: VK055_3758

Gene: AIK82313.1 rplB 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GWL9
Length 255
Pocket druggability (P2Rank · AlphaFold DB model) 0.234
Direct ligand evidence 0 56 total records
Functional annotation 0 EC 9 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
Hit
Human identity (%)
42.222 Lower values reduce human off-target concern.
Human E-value
9.19e-23
Gut microbiome similarity
80.0% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
95.64 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) 0.234
Structure A0A0H3GWL9
Pocket Pocket 1
Druggability (FPocket) 0.582
Structure A0A0H3GWL9
Pocket Pocket 8
ColabFold model
P2Rank 0.077 · Pocket 1
FPocket 0.094 · Pocket 3
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 3795 / 4744 genomes with a hit
Prevalence 80.0%

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.

MVNPELHKGKPFAPLLEKNSKSGGRNNNGRITTRHIGGGHKQAYRIVDFKRNKDGIPAVVERLEYDPNRSANIALVLYKDGERRYILAPKGLKAGDQIQSGVDAAIKAGNTLPMRNIPVGSTVHNVEMKPGKGGQLARSAGTYVQIVARDGAYVTLRLRSGEMRKVEADCRATLGEVGNAEHMLRVLGKAGAARWRGVRPTVRGTAMNPVDHPHGGGEGRNFGKHPVSPWGLQTKGKKTRSNKRTDKFIVRRRSK

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

9 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

9
  • GO:0003735 The action of a molecule that contributes to the structural integrity of the ribosome.
  • GO:0016740 Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
  • GO:0015934 The larger of the two subunits of a ribosome. Two sites on the ribosomal large subunit are involved in translation, namely the aminoacyl site (A site) and peptidyl site (P site).
  • GO:0003723 Binding to an RNA molecule or a portion thereof.
  • GO:0006412 The cellular metabolic process in which a protein is formed, using the sequence of a mature mRNA or circRNA molecule to specify the sequence of amino acids in a polypeptide chain. Translation is mediated by the ribosome, and begins with the formation of a ternary complex between aminoacylated initiator methionine tRNA, GTP, and initiation factor 2, which subsequently associates with the small subunit of the ribosome and an mRNA or circRNA. Translation ends with the release of a polypeptide chain from the ribosome.
  • GO:0005840 An intracellular organelle, about 200 A in diameter, consisting of RNA and protein. It is the site of protein biosynthesis resulting from translation of messenger RNA (mRNA). It consists of two subunits, one large and one small, each containing only protein and RNA. Both the ribosome and its subunits are characterized by their sedimentation coefficients, expressed in Svedberg units (symbol: S). Hence, the prokaryotic ribosome (70S) comprises a large (50S) subunit and a small (30S) subunit, while the eukaryotic ribosome (80S) comprises a large (60S) subunit and a small (40S) subunit. Two sites on the ribosomal large subunit are involved in translation, namely the aminoacyl site (A site) and peptidyl site (P site). Ribosomes from prokaryotes, eukaryotes, mitochondria, and chloroplasts have characteristically distinct ribosomal proteins.
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0019843 Binding to a ribosomal RNA.
  • GO:0002181 The chemical reactions and pathways resulting in the formation of a protein in the cytoplasm. This is a ribosome-mediated process in which the information in messenger RNA (mRNA) is used to specify the sequence of amino acids in the protein.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

33 records
Show feature table
Start End DB Term Name
4 254 NCBIfam TIGR01171 50S ribosomal protein L2
4 254 InterPro IPR005880 Ribosomal protein L2, bacterial/organellar-type
200 211 ProSitePatterns PS00467 Ribosomal protein L2 signature.
200 211 InterPro IPR022671 Ribosomal protein L2, conserved site
203 246 MobiDBLite mobidb-lite consensus disorder prediction
24 99 Pfam PF00181 Ribosomal Proteins L2, RNA binding domain
24 99 InterPro IPR022666 Ribosomal Proteins L2, RNA binding domain
24 100 SMART SM01383 Ribosomal_L2_2
24 100 InterPro IPR002171 Ribosomal protein L2
109 251 SUPERFAMILY SSF50104 Translation proteins SH3-like domain
109 251 InterPro IPR008991 Translation protein SH3-like domain superfamily
20 254 PANTHER PTHR13691 RIBOSOMAL PROTEIN L2
20 254 InterPro IPR002171 Ribosomal protein L2
1 96 Gene3D G3DSA:2.40.50.140 -
1 96 InterPro IPR012340 Nucleic acid-binding, OB-fold
107 231 Pfam PF03947 Ribosomal Proteins L2, C-terminal domain
107 231 InterPro IPR022669 Ribosomal protein L2, C-terminal
1 255 PIRSF PIRSF002158 RPL2p_RPL2a_RPL8e_RPL2o
1 255 InterPro IPR002171 Ribosomal protein L2
1 254 Hamap MF_01320_B 50S ribosomal protein L2 [rplB].
1 254 InterPro IPR005880 Ribosomal protein L2, bacterial/organellar-type
2 107 SUPERFAMILY SSF50249 Nucleic acid-binding proteins
2 107 InterPro IPR012340 Nucleic acid-binding, OB-fold
1 37 MobiDBLite mobidb-lite consensus disorder prediction
97 177 Gene3D G3DSA:2.30.30.30 -
97 177 InterPro IPR014722 Ribosomal protein L2, domain 2
178 255 Gene3D G3DSA:4.10.950.10 Ribosomal protein L2, domain 3
178 255 InterPro IPR014726 Ribosomal protein L2, domain 3
1 96 FunFam G3DSA:2.40.50.140:FF:000003 50S ribosomal protein L2
106 233 SMART SM01382 Ribosomal_L2_C_2
106 233 InterPro IPR022669 Ribosomal protein L2, C-terminal
100 177 FunFam G3DSA:2.30.30.30:FF:000001 50S ribosomal protein L2
178 255 FunFam G3DSA:4.10.950.10:FF:000001 50S ribosomal protein L2

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
0.234
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Surrounding area
Pocket 2 P2Rank #2
0.175
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Surrounding area
Pocket 3 P2Rank #3
0.093
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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 #8
0.582
Show in viewer
Surrounding area
Pocket 2 FPocket #1
0.347
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Surrounding area
Pocket 3 FPocket #17
0.255
Show in viewer
Surrounding area
Pocket 4 FPocket #4
0.237
Show in viewer
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_A0A0H3GWL9
AlphaFold DB full sequence Viewing
ColabFold VK055_3758
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.

56 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 6 records from similar proteins
Structural ligands 6 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
1MG PDB via homolog 377.3 Da · LogP -2.56 · TPSA 195.2 Open detail RCSB PDB
8UZ PDB via homolog Detail RCSB PDB
LLL PDB via homolog Detail RCSB PDB
OHX PDB via homolog Detail RCSB PDB
PAR 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
1MG RCSB PDB P60422 377.3 Da LogP -2.56 TPSA 195.2 1 viol. ✓ Clean CN1C(=O)c2c(n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
8UZ RCSB PDB P0CX45 483.5 Da LogP -7.33 TPSA 288.4 2 viol. ✓ Clean C1[C@H]([C@@H]([C@H]([C@@H]([C@H]1N)O[C@@H]2[C@…
LLL RCSB PDB P0CX45 449.5 Da LogP -3.98 TPSA 213.7 2 viol. ✓ Clean C[C@@]1(CO[C@@H]([C@@H]([C@H]1NC)O)O[C@H]2[C@@H…
OHX RCSB PDB P0CX45 286.4 Da LogP -3.55 TPSA 156.1 1 viol. ✓ Clean N[Os](N)(N)(N)(N)N
PAR RCSB PDB P0CX45 615.6 Da LogP -8.86 TPSA 347.3 3 viol. ✓ Clean C1[C@H]([C@@H]([C@H]([C@@H]([C@H]1N)O[C@@H]2[C@…
PSU RCSB PDB P60422 324.2 Da LogP -2.67 TPSA 182.2 1 viol. ✓ Clean C1=C(C(=O)NC(=O)N1)[C@H]2[C@@H]([C@@H]([C@H](O2…

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.