Protein target profile

VK055_0129

ribonuclease D

Genome: KpATCC43816 Gene: rnd AIK78757.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GUP0
Length 371
Pocket druggability 0.349
Direct ligand evidence 0 52 total records
Functional annotation 1 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 (%)
25.475 Lower values reduce human off-target concern.
Human E-value
5.86e-10
Gut microbiome similarity
2.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
N
DEG identity (%)
30.612 Higher values support similarity to known essential genes.

Localization

Localization
Cytoplasmic

Structure confidence

ColabFold pLDDT
96.35 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

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 0.349
Structure A0A0H3GUP0
Pocket Pocket 1
P2Rank 0.578
Structure A0A0H3GUP0
Pocket Pocket 1
ColabFold model
FPocket 0.322 · Pocket 1
P2Rank 0.623 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 108 / 4744 genomes with a hit
Prevalence 2.3%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MITTDDGLRAVCEAASAASAVALDTEFVRTRTYYPQLGLLQLFDGQQVSLIDPLTINDWAPMRDLLLNQDVTKYLHAGSEDLEVFLNAFNLMPQPLIDTQILAAFCGRPMSWGFASMVEEYSGVALDKSESRTDWLARPLTERQCEYAAADVWYLLPIASQLMAETDRAGWLPAALDECRVMQQRRQEVVDPAEAWRDIGNAWQLRTRQLGCLQLLAEWRLRKARERDLAVNFVVREEHLWSVARYMPTSLGELDSLGLSGSEIRFHGKTLISLVEKAQALPESALPAPLQNLIDMPGYRKAFKDIKALVQEVSTEKGVSAELLASRRQINQLLNWHWQLKTQAGEPELISGWRGELMAERLKRLLNDYPR

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 9 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

9
  • GO:0033890 Catalysis of the exonucleolytic cleavage that removes extra residues from the 3'-terminus of tRNA to produce 5'-mononucleotides.
  • GO:0003676 Binding to a nucleic acid.
  • GO:0006139 Any cellular metabolic process involving nucleobases, nucleosides, nucleotides and nucleic acids.
  • GO:0044237 OBSOLETE. The chemical reactions and pathways by which individual cells transform chemical substances.
  • GO:0000166 Binding to a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
  • GO:0008408 Catalysis of the hydrolysis of ester linkages within nucleic acids by removing nucleotide residues from the 3' end.
  • GO:0008033 The process in which a pre-tRNA molecule is converted to a mature tRNA, ready for addition of an aminoacyl group.
  • GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
  • GO:0042780 The process in which the 3' end of a pre-tRNA molecule is converted to that of a mature tRNA.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

28 records
Show feature table
Start End DB Term Name
189 297 SUPERFAMILY SSF47819 HRDC-like
189 297 InterPro IPR010997 HRDC-like superfamily
290 371 Gene3D G3DSA:1.10.150.80 HRDC domain
290 371 InterPro IPR044876 HRDC domain superfamily
209 275 Pfam PF00570 HRDC domain
209 275 InterPro IPR002121 HRDC domain
292 368 SUPERFAMILY SSF47819 HRDC-like
292 368 InterPro IPR010997 HRDC-like superfamily
1 366 NCBIfam TIGR01388 ribonuclease D
1 366 InterPro IPR006292 Ribonuclease D
191 289 Gene3D G3DSA:1.10.150.80 HRDC domain
191 289 InterPro IPR044876 HRDC domain superfamily
1 368 PANTHER PTHR47649 RIBONUCLEASE D
1 190 FunFam G3DSA:3.30.420.10:FF:000060 Ribonuclease D
1 165 Pfam PF01612 3'-5' exonuclease
1 165 InterPro IPR002562 3'-5' exonuclease domain
206 285 ProSiteProfiles PS50967 HRDC domain profile.
206 285 InterPro IPR002121 HRDC domain
206 285 SMART SM00341 hrdc7
1 190 Gene3D G3DSA:3.30.420.10 -
1 190 InterPro IPR036397 Ribonuclease H superfamily
23 183 CDD cd06142 RNaseD_exo
1 206 SUPERFAMILY SSF53098 Ribonuclease H-like
1 206 InterPro IPR012337 Ribonuclease H-like superfamily
1 367 Hamap MF_01899 Ribonuclease D [rnd].
1 367 InterPro IPR006292 Ribonuclease D
1 167 SMART SM00474 35exoneu6
1 167 InterPro IPR002562 3'-5' exonuclease domain

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
0.349
Show in viewer
Surrounding area
Site 2 FPocket #2
0.305
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Surrounding area

Binding pockets · P2Rank

Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Site 1 P2Rank #1
0.578
Show in viewer
Surrounding area
Site 2 P2Rank #2
0.202
Show in viewer
Surrounding area
Site 3 P2Rank #3
0.07
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Surrounding area
Site 4 P2Rank #4
0.003
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_A0A0H3GUP0
AlphaFold DB full sequence Viewing
ColabFold VK055_0129
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.

52 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 2 records from similar proteins
Structural ligands 2 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
A3P PDB via homolog 427.2 Da · LogP -1.75 · TPSA 232.6 Open detail RCSB PDB
YT3 PDB via homolog Detail RCSB PDB
ZINC12501123 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC4228234 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC79671662 ZINC proposed compound · Tanimoto 1.000 Detail ZINC

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
A3P RCSB PDB X5MEI1 427.2 Da LogP -1.75 TPSA 232.6 2 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
YT3 RCSB PDB Q01780 88.9 Da LogP -0.00 TPSA 0.0 ✓ Ro5 ✓ Clean [Y+3]

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.