KpATCC43816 Protein target profile

glycerol-3-phosphate O-acyltransferase

Accession: VK055_3044

Gene: plsB AIK81629.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 2 reactions UniProt A0A0H3GLW5
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Length 807
Pocket druggability (P2Rank · AlphaFold DB model) 0.941
Metabolic reactions 2
Chokepoint No
Functional annotation 0 EC 6 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.

Main supporting evidence

Central metabolic position More central than 98.1% of genes in this genome. No isoenzyme backup detected Imported GPR rules do not show an alternative enzyme for the catalyzed reaction set. Core gene across strains Marked as conserved by both pan-genome tools: Roary and CoreCruncher. Second pocket predictor agrees P2Rank predicted binding-site probability 0.94. Review the complete evidence below

Risks to review

Human similarity Top human hit identity: 37.64%. This target also has a predicted binding pocket (P2Rank 0.94) — check the ligand evidence before deprioritizing on off-target risk alone. Microbiome similarity 142 of 4744 screened genomes (3.0%) have a significant similarity hit. This target also has a predicted binding pocket (P2Rank 0.94) — check the ligand evidence before deprioritizing on off-target risk alone. Best pocket may be a modeling artifact FPocket selected-pocket score 0.79, but this pocket's geometry is unusually large/diffuse compared to this protein's other predicted pockets — may reflect a low-confidence or disordered model region rather than a real cavity.

Evidence gaps

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
Hit
Human identity (%)
37.64 Lower values reduce human off-target concern.
Human E-value
4.45e-29
Gut microbiome similarity
3.0% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
90.32 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) 0.941
Structure A0A0H3GLW5
Pocket Pocket 1
Druggability (FPocket) 0.794
Structure A0A0H3GLW5
Pocket Pocket 63
ColabFold model
P2Rank 0.907 · Pocket 1
FPocket 0.333 · Pocket 16
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 142 / 4744 genomes with a hit
Prevalence 3.0%

Metabolic context

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

Explore metabolic network

Metabolic context: more central than 98.1% of genes in this genome.

Relative network centrality 98.1% more central than 98.1% of genes in this genome
Chokepoint Not a chokepoint
Pathways
Glycerolipid metabolism Glycerophospholipid metabolism
Catalyzed reactions

2 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.

MSGWQRIYYKLLNLPLQVLVKSKSIPAEPAQELGLDTSRPVMYVLPYNSKADLLTLRAQCLAHDLPDPLEPLEIDGALLPRYVFIHGGPRVFTYYTPKEESIKLFHDYLDLHRNHPDLDVQMVPVSVMFGRSPGREKGEVNPPLRMLNGIQKFFAVSWLGRDSFVRFSPSVSLRRMADEHGTDKIIAQKLARVARMHFARQRLAAVGPRLPARQDLFNKLLASKAIARAVEDEARSKKISHEKAQQNAIALMEEIAANFSYEMIRLTDRILGFTWNRLYQGINVHNAERVRQLAHDGHEIVYVPCHRSHMDYLLLSYVLYHQGLVPPHIAAGINLNFWPAGPIFRRLGAFFIRRTFKGNKLYSTVFREYLGELFSRGYSVEYFVEGGRSRTGRLLDPKTGTLSMTIQAMLRGGTRPITLVPIYIGYEHVMEVGTYAKELRGATKEKESLPQMVRGLSKLRNLGQGYVNFGEPLPLMTYLNQHVPDWREAIDPIEAVRPSWLTPTVNSIAADLMVRINNAGAANAMNLCCTALLASRQRSLTREQLTQQLECYLALLRNVPYSPDATAPSASASELIDHALQMNKFEVEKDTIGDIIILPREQAVLMTYYRNNIAHMLVMPSLLAALVTQHRHLSRAEVLRHVETLYPFLKAELFLRWEKAELAGVVDALIAEMLRQELIVVDGDVMSLNPSHSRSLQLLAAGARETLQRYAITFWLLSANPAINRSSLEKESRTVAQRLSVLHGINAPEFFDKAVFSTLVLTLRDEGYISDTGDAEPEETLKVYRMLADLITSDVRLTIESVTQDDA

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

6 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

6
  • GO:0008654 The chemical reactions and pathways resulting in the formation of a phospholipid, a lipid containing phosphoric acid as a mono- or diester.
  • GO:0008374 Catalysis of the transfer of an acyl group to an oxygen atom on the acceptor molecule.
  • GO:0044255 OBSOLETE. The chemical reactions and pathways involving lipids, as carried out by individual cells.
  • GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
  • GO:0004366 Catalysis of the reaction: an acyl-CoA + sn-glycerol 3-phosphate = a 1-acyl-sn-glycero-3-phosphate + CoA.
  • GO:0016746 Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor).

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

19 records
Show feature table
Start End DB Term Name
246 482 SUPERFAMILY SSF69593 Glycerol-3-phosphate (1)-acyltransferase
435 683 Pfam PF19277 Glycerol-3-phosphate acyltransferase C-terminal region
435 683 InterPro IPR045520 GPAT/DHAPAT, C-terminal domain
19 807 PIRSF PIRSF000437 GPAT_DHAPAT
19 807 InterPro IPR022284 Glycerol-3-phosphate O-acyltransferase/Dihydroxyacetone phosphate acyltransferase
300 427 SMART SM00563 plsc_2
300 427 InterPro IPR002123 Phospholipid/glycerol acyltransferase
282 424 Pfam PF01553 Acyltransferase
282 424 InterPro IPR002123 Phospholipid/glycerol acyltransferase
13 807 Hamap MF_00393 Glycerol-3-phosphate acyltransferase [plsB].
13 807 InterPro IPR028354 Glycerol-3-phosphate acyltransferase, PlsB
11 799 NCBIfam TIGR03703 glycerol-3-phosphate 1-O-acyltransferase PlsB
11 799 InterPro IPR028354 Glycerol-3-phosphate acyltransferase, PlsB
279 480 CDD cd07993 LPLAT_DHAPAT-like
279 480 InterPro IPR041728 GPAT/DHAPAT, acyltransferase domain
2 807 PIRSF PIRSF500064 GPAT
2 807 InterPro IPR028354 Glycerol-3-phosphate acyltransferase, PlsB
142 784 PANTHER PTHR12563 GLYCEROL-3-PHOSPHATE ACYLTRANSFERASE
142 784 InterPro IPR022284 Glycerol-3-phosphate O-acyltransferase/Dihydroxyacetone phosphate acyltransferase

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
0.941
Likely same site as FPocket 23 2.3 Å 36 shared residues 100% of smaller site
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Surrounding area
Pocket 2 P2Rank #2
0.642
Likely same site as FPocket 63 3.7 Å 19 shared residues 83% of smaller site
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Surrounding area
Pocket 3 P2Rank #3
0.228
Likely same site as FPocket 33 1.6 Å 14 shared residues 93% of smaller site
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Surrounding area
Pocket 4 P2Rank #4
0.213
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Surrounding area
Pocket 5 P2Rank #5
0.199
Likely same site as FPocket 13 4.4 Å 12 shared residues 100% of smaller site
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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 #63
0.794 Unusual size
Likely same site as P2Rank 2 3.7 Å 19 shared residues 83% of smaller site
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Surrounding area
Pocket 2 FPocket #13
0.421 Unusual size
Likely same site as P2Rank 5 4.4 Å 12 shared residues 100% of smaller site
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Surrounding area
Pocket 3 FPocket #23
0.323 Unusual size
Likely same site as P2Rank 1 2.3 Å 36 shared residues 100% of smaller site
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Surrounding area
Pocket 4 FPocket #33
0.3
Likely same site as P2Rank 3 1.6 Å 14 shared residues 93% of smaller site
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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_A0A0H3GLW5
AlphaFold DB — — full sequence — Viewing
ColabFold VK055_3044
ColabFold — — full sequence — Loaded

Cross-references

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

Sequence

UniProt A0A0H3GLW5

Pathways

KEGG R09380 BioCyc RXN-10462 KEGG R00851 BioCyc RXN-1381