KpATCC43816 Protein target profile

exodeoxyribonuclease V, beta subunit

Accession: VK055_4296

Gene: recB AIK82841.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GSM0
Length 1178
Pocket druggability (P2Rank · AlphaFold DB model) 0.789
Direct ligand evidence 0 52 total records
Functional annotation 2 EC 12 GO
Target summary

Promising target candidate with multiple supporting evidence streams.

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
2.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
90.05 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) 0.789
Structure A0A0H3GSM0
Pocket Pocket 1
Druggability (FPocket) 0.499
Structure A0A0H3GSM0
Pocket Pocket 5
ColabFold model
P2Rank 0.805 · Pocket 1
FPocket 0.229 · Pocket 102
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 110 / 4744 genomes with a hit
Prevalence 2.3%

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.

MTDTAESLDPLRLPLIGERLIEASAGTGKTFTIAALYLRLLLGLGGEAAYPRAISVEELLVVTFTEAATEELRGRIRSNIHELRIACLRGESDNPLYSALLAEIADKDDAAKTLLLAERQMDEAAVFTIHGFCQRMLSLNAFESGMLFEQQLIEDESRLRYQACADFWRRHCYPLTRDIAAVIHDVWKGPRDLLKSLDRWLQGEAPQLKSPPAPNETLAERHQQIIARIDSLKQQWREQVGEIEGVLENSGLDRRKFNRGNQGKWMEKVNAWAQEETLSYQLPDALEKFAQSFLLERTKAGGEPPVHPLFSAVESLLASSLTLTDLVLARAMVEIRDAVAREKRRRGELGFDDMLSRLDEALRGDSGETLASAIRQRFPVAMIDEFQDTDPQQYRIFRRIWRRQPETALLLIGDPKQAIYAFRGADIFTYMKARGDVAAHYTLDTNWRSSPGMVGSVNRLFSLSDNPFMFHEIPFLPVKAAAKNKGLRFTVDAADVPAMNVWLMPGDTVGSGDYQTFMAQLCATQIRDWLSAGQQGRALLWRGETSRPVQASDITVLVRNRLEAAQVREALQTLGIPSVYLSNRDSVFETLEAQELLWLLQAVLAPERENTLRSALATSMFGLTALDIENLNQDEQAWDALVEEFSEYRQIWRQRGVMPMLRALMTARHIAENLLATRGGERRLTDILHISELLQEAASQLESEHALVRWLAQHIAEPDSNAASQQMRLESDKHLVQIVTIHKSKGLEYPLVWLPFIARFRKQDQAFYHDRETFAAVLDLGQDEASLELAEAERLAEDLRLLYVALTRAVWHCSLGVAPLSSRKSGNSDFHLSALGRLLQAGEAMDAAGLAARLADFCHGDIALQIPGELDLTPWQAPAATIPRLSARELQRRIADDWRVTSYSGLQQHGFSGGQDLLPRLDVDAAGVGEVVEEPQLTPHQFPRGAAPGTFLHSLFEELDFTQPVPEGWMAEKLQLSGFDAQWAPVLTDWLGGVLKTRLPGPDIALNQLAARDKQVEMAFYLPIAQLLTAERLDALIRQYDPLSADTPPLDFRQVRGMLKGFIDLVFRHEGRYYLLDYKSNWLGEDREAYTRPAMEQAMRAHRYDLQYQLYSLALHRYLRHRLADYDYDRHFGGVIYLFLRGMDGQEGGQGIFTTRPVRPLIDGLDQLFAGETQEEAS

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

2 EC 12 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

2

Gene Ontology (GO)

12
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0008854 Catalysis of the exonucleolytic cleavage (in the presence of ATP) in either 5' to 3' or 3' to 5' direction to yield 5'-phosphooligonucleotides.
  • GO:0003678 Unwinding of a DNA helix, driven by ATP hydrolysis.
  • GO:0006281 The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.
  • GO:0016787 Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc.
  • GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0009338 An enzyme complex that catalyzes exonucleolytic cleavage (in the presence of ATP) in either 5' to 3' or 3' to 5' direction to yield 5'-phosphooligonucleotides. Exodeoxyribonuclease V shows a preference for double-stranded DNA and possesses DNA-dependent ATPase activity. It acts endonucleolytically on single-stranded circular DNA.
  • GO:0043138 Unwinding a DNA helix in the direction 5' to 3', driven by ATP hydrolysis.
  • GO:0016887 Catalysis of the reaction: ATP + H2O = ADP + H+ phosphate. ATP hydrolysis is used in some reactions as an energy source, for example to catalyze a reaction or drive transport against a concentration gradient.
  • GO:0000287 Binding to a magnesium (Mg) ion.
  • GO:0000724 The error-free repair of a double-strand break in DNA in which the broken DNA molecule is repaired using homologous sequences. A strand in the broken DNA searches for a homologous region in an intact chromosome to serve as the template for DNA synthesis. The restoration of two intact DNA molecules results in the exchange, reciprocal or nonreciprocal, of genetic material between the intact DNA molecule and the broken DNA molecule.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

33 records
Show feature table
Start End DB Term Name
886 1177 Gene3D G3DSA:3.90.320.10 -
886 1177 InterPro IPR011604 PD-(D/E)XK endonuclease-like domain superfamily
19 833 PANTHER PTHR11070 UVRD / RECB / PCRA DNA HELICASE FAMILY MEMBER
19 833 InterPro IPR000212 DNA helicase, UvrD/REP type
947 1140 Pfam PF12705 PD-(D/E)XK nuclease superfamily
947 1140 InterPro IPR038726 PD-(D/E)XK endonuclease-like domain, AddAB-type
2 450 ProSiteProfiles PS51198 UvrD-like DNA helicase ATP-binding domain profile.
2 450 InterPro IPR014016 UvrD-like helicase, ATP-binding domain
8 1169 NCBIfam TIGR00609 exodeoxyribonuclease V subunit beta
8 1169 InterPro IPR004586 RecBCD enzyme subunit RecB
445 843 Gene3D G3DSA:3.40.50.300 -
445 843 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
19 826 SUPERFAMILY SSF52540 P-loop containing nucleoside triphosphate hydrolases
19 826 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
898 1166 CDD cd22352 RecB_C-like
15 436 Pfam PF00580 UvrD/REP helicase N-terminal domain
15 436 InterPro IPR014016 UvrD-like helicase, ATP-binding domain
480 746 ProSiteProfiles PS51217 UvrD-like DNA helicase C-terminal domain profile.
480 746 InterPro IPR014017 UvrD-like DNA helicase, C-terminal
886 1176 FunFam G3DSA:3.90.320.10:FF:000003 RecBCD enzyme subunit RecB
896 1171 SUPERFAMILY SSF52980 Restriction endonuclease-like
896 1171 InterPro IPR011335 Restriction endonuclease type II-like
441 809 Pfam PF13361 UvrD-like helicase C-terminal domain
441 809 InterPro IPR014017 UvrD-like DNA helicase, C-terminal
155 349 Gene3D G3DSA:1.10.3170.10 Recbcd, chain B, domain 2
736 816 CDD cd18807 SF1_C_UvrD
782 809 Coils Coil Coil
215 235 Coils Coil Coil
5 1170 Hamap MF_01485 RecBCD enzyme subunit RecB [recB].
5 1170 InterPro IPR004586 RecBCD enzyme subunit RecB
8 436 Gene3D G3DSA:3.40.50.300 -
8 436 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
583 728 Gene3D G3DSA:1.10.486.10 PCRA; domain 4

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
0.789
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Surrounding area
Pocket 2 P2Rank #2
0.779
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Surrounding area
Pocket 3 P2Rank #3
0.705
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Surrounding area
Pocket 4 P2Rank #4
0.479
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Surrounding area
Pocket 5 P2Rank #5
0.28
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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 #5
0.499
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Surrounding area
Residue sets
UniProt: Active site:1077-1077 For nuclease activity
UniProt: Binding site:1064-1064
UniProt: Binding site:1077-1077
UniProt: Binding site:23-30
UniProt: Binding site:953-953
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_A0A0H3GSM0
AlphaFold DB full sequence Viewing
ColabFold VK055_4296
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
ANP PDB via homolog 506.2 Da · LogP -2.06 · TPSA 281.9 Open detail RCSB PDB
MGF PDB via homolog Detail RCSB PDB
ZINC12360002 ZINC proposed compound · Tanimoto 0.810 Detail ZINC
ZINC12360703 ZINC proposed compound · Tanimoto 0.810 Detail ZINC
ZINC12503599 ZINC proposed compound · Tanimoto 0.810 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
ANP RCSB PDB P03018 506.2 Da LogP -2.06 TPSA 281.9 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
MGF RCSB PDB P03018 81.3 Da LogP 0.88 TPSA 0.0 ✓ Ro5 ✓ Clean F[Mg-](F)F

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.