KpKP13 Protein target profile

putative cytosine-N4-specific DNA methylase

Accession: KP13_02653

Gene: AHE47359.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A483F1C6
Length 414
Pocket druggability (P2Rank · AlphaFold DB model) 0.876
Functional annotation 1 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.

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
0.1% 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.

Structure confidence

ColabFold pLDDT
87.95 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) 0.876
Structure A0A483F1C6
Pocket Pocket 1
Druggability (FPocket) 0.653
Structure A0A483F1C6
Pocket Pocket 17
ColabFold model
P2Rank 0.897 · Pocket 1
FPocket 0.857 · Pocket 1
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 4 / 4744 genomes with a hit
Prevalence 0.1%

Sequence

Primary amino-acid sequence viewer.

MSRLNMDLIEAIYSESDRELTNNELYREVQSRLAIPDDAFNAKEKFGRAGVPHNKLKHRIRWFQQTLKSMNVIERLSSGRSLWRHCRKNKSGLSEVREGACLVAFSTELGVAILGNSTMVLPGNTEPVHLCLTSPPYPLRKQRDYAAAFKNDSDYIDFIVEAIRPIARQLVNGGSVVLNIGQDIFNPGQPSRSLYPERLLLALCEKLDLYLMDRVPWVNMSKPPSPTYWACRKKVQLLAGHEMIFWLTNNPDAVRSCNQRVLQPHTESHSALVARGGENRTTIYGDGAHVVKPGAFSQSTDGAIPKNVIIRGHACADTRRFHQEAKRLGLPAHGAMFPTAIPDFFIRFLTEENELVVDPFAGSLKTGLAAERLNRRWMCFDSILEWLRISATAFFSDFPGFEMNPIIDNGELFA

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 7 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

7
  • GO:0090124 OBSOLETE. The covalent transfer of a methyl group to N-4 of cytosine in a DNA molecule.
  • GO:0006306 OBSOLETE. The covalent transfer of a methyl group to either N-6 of adenine or C-5 or N-4 of cytosine.
  • GO:0008170 Catalysis of the transfer of a methyl group to the nitrogen atom of an acceptor molecule.
  • GO:0015667 Catalysis of the reaction: S-adenosyl-L-methionine + DNA cytosine = S-adenosyl-L-homocysteine + DNA N4-methylcytosine.
  • GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
  • GO:0009307 A defense process found in many bacteria and archaea that protects the organism from invading foreign DNA by cleaving it with a restriction endonuclease. The organism's own DNA is protected by methylation of a specific nucleotide, which occurs immediately following replication, in the same target site as the restriction enzyme.
  • GO:0032259 The process in which a methyl group is covalently attached to a molecule.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

16 records
Show feature table
Start End DB Term Name
101 397 Gene3D G3DSA:3.40.50.150 Vaccinia Virus protein VP39
101 397 InterPro IPR029063 S-adenosyl-L-methionine-dependent methyltransferase superfamily
333 350 PRINTS PR00508 S21 class N4 adenine-specific DNA methyltransferase signature
333 350 InterPro IPR001091 Restriction/modification DNA-methyltransferase
162 182 PRINTS PR00508 S21 class N4 adenine-specific DNA methyltransferase signature
162 182 InterPro IPR001091 Restriction/modification DNA-methyltransferase
352 370 PRINTS PR00508 S21 class N4 adenine-specific DNA methyltransferase signature
352 370 InterPro IPR001091 Restriction/modification DNA-methyltransferase
127 141 PRINTS PR00508 S21 class N4 adenine-specific DNA methyltransferase signature
127 141 InterPro IPR001091 Restriction/modification DNA-methyltransferase
132 137 ProSitePatterns PS00093 N-4 cytosine-specific DNA methylases signature.
132 137 InterPro IPR017985 DNA methylase, N-4 cytosine-specific, conserved site
105 390 SUPERFAMILY SSF53335 S-adenosyl-L-methionine-dependent methyltransferases
105 390 InterPro IPR029063 S-adenosyl-L-methionine-dependent methyltransferase superfamily
128 388 Pfam PF01555 DNA methylase
128 388 InterPro IPR002941 DNA methylase N-4/N-6

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

Loading 3D structure...

Drag to rotate — click the view, then scroll to zoom.

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
0.876
Likely same site as FPocket 10 5.6 Å 25 shared residues 76% of smaller site
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.269
Likely same site as FPocket 6 4.4 Å 13 shared residues 62% of smaller site
Show in viewer
Surrounding area
Pocket 3 P2Rank #3
0.207
Likely same site as FPocket 6 3.1 Å 10 shared residues 91% of smaller site
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.178
Show in viewer
Surrounding area
Pocket 5 P2Rank #5
0.051
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #17
0.653
Show in viewer
Surrounding area
Pocket 2 FPocket #10
0.521 Unusual size
Likely same site as P2Rank 1 5.6 Å 25 shared residues 76% of smaller site
Show in viewer
Surrounding area
Pocket 3 FPocket #6
0.217
Likely same site as P2Rank 3 3.1 Å 10 shared residues 91% of smaller site
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_A0A483F1C6
AlphaFold DB full sequence Viewing
ColabFold KP13_02653
ColabFold full sequence Loaded

Cross-references

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