KpKP13 Protein target profile

30S ribosomal protein S20

Accession: KP13_14302

Gene: ANJ86628.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A2W0ZMQ6
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Length 87
Pocket druggability (P2Rank · AlphaFold DB model) 0.042
Functional annotation 0 EC 7 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.

Main supporting evidence

No similar human protein detected The current BLAST sequence screen did not find a significant human match, lowering apparent off-target risk. Structure available AlphaFold DB model + ColabFold model

Risks to review

Microbiome similarity 188 of 4744 screened genomes (4.0%) have a significant similarity hit. Mixed conservation Core/accessory calls are not fully concordant. Weak predicted binding pocket FPocket selected-pocket score 0.09. Weak second pocket-predictor signal P2Rank predicted binding-site probability 0.04.

Evidence gaps

No metabolic context No SBML/network-derived reaction evidence is loaded for this protein. No ligand evidence No experimental PDB ligands, measured ChEMBL bioactivity, or proposed ZINC compound records are available.
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
4.0% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
98.851 Higher values support similarity to known essential genes.
DEG E-value
3.8000000000000003e-57 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
94.12 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) 0.042
Structure A0A2W0ZMQ6
Pocket Pocket 1
Druggability (FPocket) 0.091
Structure A0A2W0ZMQ6
Pocket Pocket 2
ColabFold model
P2Rank 0.022 · Pocket 1
FPocket 0.628 · Pocket 2
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 188 / 4744 genomes with a hit
Prevalence 4.0%

Sequence

Primary amino-acid sequence viewer.

MANIKSAKKRAVQSEKARKHNASRRSMMRTFIKKVYAAIEAGDKAAAQKAFNEMQPIVDRQAAKGLIHKNKAARHKANLTAQINKLA

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

7 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

7
  • 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:0003735 The action of a molecule that contributes to the structural integrity of the ribosome.
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0015935 The smaller of the two subunits of a ribosome.
  • GO:0070181 Binding to small ribosomal subunit RNA (SSU rRNA), a constituent of the small ribosomal subunit. In S. cerevisiae, this is the 18S rRNA.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

14 records
Show feature table
Start End DB Term Name
1 85 Hamap MF_00500 30S ribosomal protein S20 [rpsT].
1 85 InterPro IPR002583 Ribosomal protein S20
3 86 SUPERFAMILY SSF46992 Ribosomal protein S20
3 86 InterPro IPR036510 Ribosomal protein S20 superfamily
1 87 FunFam G3DSA:1.20.58.110:FF:000001 30S ribosomal protein S20
2 84 Pfam PF01649 Ribosomal protein S20
2 84 InterPro IPR002583 Ribosomal protein S20
1 84 NCBIfam TIGR00029 30S ribosomal protein S20
1 84 InterPro IPR002583 Ribosomal protein S20
3 86 PANTHER PTHR33398 30S RIBOSOMAL PROTEIN S20
3 86 InterPro IPR002583 Ribosomal protein S20
1 87 Gene3D G3DSA:1.20.58.110 Ribosomal protein S20
1 87 InterPro IPR036510 Ribosomal protein S20 superfamily
1 26 MobiDBLite mobidb-lite consensus disorder prediction

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.

Download VMD script Full viewer

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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
0.042
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.011
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_A0A2W0ZMQ6
AlphaFold DB — — full sequence — Viewing
ColabFold KP13_14302
ColabFold — — full sequence — Loaded

Cross-references

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

Sequence

UniProt A0A2W0ZMQ6