Protein target profile

VK055_1714

cardiolipin synthase 2

Genome: KpATCC43816 Gene: ybhO AIK80334.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 3 reactions UniProt A0A0H3GQ81
Length 414
Pocket druggability 0.947
Metabolic reactions 3
Chokepoint No
Functional annotation 1 EC 4 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
1.6% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Localization

Localization
CytoplasmicMembrane

Structure confidence

ColabFold pLDDT
85.67 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 0.947
Structure A0A0H3GQ81
Pocket Pocket 17
P2Rank 0.866
Structure A0A0H3GQ81
Pocket Pocket 1
ColabFold model
FPocket 0.744 · Pocket 21
P2Rank 0.924 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 76 / 4744 genomes with a hit
Prevalence 1.6%

Cross-references

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

Metabolic context

Reactions catalyzed, pathway membership, and centrality in the genome-scale metabolic network.

Explore metabolic network

Metabolic context: more central than 97.7% of genes in this genome, no human homolog detected.

Relative network centrality 97.7% more central than 97.7% of genes in this genome
Chokepoint Not a chokepoint
Catalyzed reactions

3 reactions mapped to this gene in the metabolic model. Open the full network to see each one, with substrates/products and the reaction-reaction map.

Imported from KpATCC43816.sbml · 2026-07-09

Sequence

Primary amino-acid sequence viewer.

MKCRWQEGNRITLLENGDQYYPALFAAIGRASRRVILESFIWFEDEVGRRLHAVLLEAARRGIQVEVLLDGYGSPDLSDEFVGELTAAGVIFRYYDPRPKLMGMRTNLFRRMHRKIVVIDDTTAFVGGINYSAEHMSDYGPEAKQDYAVQVEGPVVLDILQFELENLPNSETARRWWRRRRHQPEINQTPGEAQALFVWRDNQDHRDDIERHYLKMLTSARREVIIANAYFFPGYRLLHAMRNAARRGVRVKLIVQGEPDIPIVKFGAHLLYHYLVKGGVQIYEYRRRPLHGKVALADDHWATVGSSNLDPLSLSLNLEANLIIHDRVFNQTLRDNLNGLIARDCQRIDKTMLPKRNWWRLGVSVMAFHFLRHFPAWVGWLPAHTPRLARVSPPVQPEIETQDRVESPARDNPL

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 4 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

4
  • GO:0032049 The chemical reactions and pathways resulting in the formation of cardiolipin, 1,3-bis(3-phosphatidyl)glycerol.
  • GO:0003824 Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
  • GO:0008808 Catalysis of the reaction: phosphatidylglycerol + phosphatidylglycerol = diphosphatidylglycerol (cardiolipin) + glycerol.
  • GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

22 records
Show feature table
Start End DB Term Name
108 135 SMART SM00155 pld_4
108 135 InterPro IPR001736 Phospholipase D/Transphosphatidylase
286 313 SMART SM00155 pld_4
286 313 InterPro IPR001736 Phospholipase D/Transphosphatidylase
108 135 ProSiteProfiles PS50035 Phospholipase D phosphodiesterase active site profile.
7 370 PANTHER PTHR21248 CARDIOLIPIN SYNTHASE
202 342 Gene3D G3DSA:3.30.870.10 Endonuclease Chain A
286 313 ProSiteProfiles PS50035 Phospholipase D phosphodiesterase active site profile.
3 194 FunFam G3DSA:3.30.870.10:FF:000016 Cardiolipin synthase B
26 154 Pfam PF13091 PLD-like domain
26 154 InterPro IPR025202 Phospholipase D-like domain
215 338 Pfam PF13091 PLD-like domain
215 338 InterPro IPR025202 Phospholipase D-like domain
16 167 CDD cd09110 PLDc_CLS_1
202 340 FunFam G3DSA:3.30.870.10:FF:000015 Cardiolipin synthase B
392 414 MobiDBLite mobidb-lite consensus disorder prediction
198 360 CDD cd09159 PLDc_ybhO_like_2
2 384 Hamap MF_01917 Cardiolipin synthase B [clsB].
2 384 InterPro IPR030872 Cardiolipin synthase B
4 173 SUPERFAMILY SSF56024 Phospholipase D/nuclease
188 359 SUPERFAMILY SSF56024 Phospholipase D/nuclease
3 195 Gene3D G3DSA:3.30.870.10 Endonuclease Chain A

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 #17
0.947
Likely same site as P2Rank 4 4.6 Å 13 shared residues 93% of smaller site
Unusual size
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Surrounding area
Site 2 FPocket #3
0.787
Unusual size
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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
0.866
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Surrounding area
Site 2 P2Rank #2
0.587
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Surrounding area
Site 3 P2Rank #3
0.515
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Surrounding area
Site 4 P2Rank #4
0.232
Likely same site as FPocket 17 4.6 Å 13 shared residues 93% of smaller site
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Surrounding area
Site 5 P2Rank #5
0.121
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Surrounding area
Residue sets
UniProt: Active site:113-113
UniProt: Active site:115-115
UniProt: Active site:120-120
UniProt: Active site:291-291
UniProt: Active site:293-293
UniProt: Active site:298-298
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_A0A0H3GQ81
AlphaFold DB full sequence Viewing
ColabFold VK055_1714
ColabFold full sequence Loaded