KpKP13 Protein target profile

Cellulose synthase catalytic subunit

Accession: KP13_00286

Gene: AHE42197.1 bcsA 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GX37
Length 872
Pocket druggability (P2Rank · AlphaFold DB model) 0.999
Direct ligand evidence 0 54 total records
Functional annotation 1 EC 7 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
1.8% 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
86.0 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) 0.999
Structure A0A0H3GX37
Pocket Pocket 1
Druggability (FPocket) 0.97
Structure A0A0H3GX37
Pocket Pocket 64
ColabFold model
P2Rank 0.999 · Pocket 1
FPocket 0.988 · Pocket 58
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 87 / 4744 genomes with a hit
Prevalence 1.8%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MIRLSTLLLAPPVGERLRARYDDYRQHGASWLSASLGCLWASLVWALMPLETPRWQAILARHETYFPHINPHRPRPLDPLRYLLQSLWLLTTRVPEPEKKVNWRSLAALEGVHGRYTQWLEKLPEQMNARTGHLDKQKELAHLNPKLRRAILGGVTFCSLVLALMCITQPFNPLSQFIFLMLLWGVALLVRRIPGRFSALMLIVLSLTVSCRYIWWRYTSTLNWNDPVSLVCGIILLFAETYAWVVLVLGYFQVVWPLNRQPVPLPEDMDLWPTVDIFVPTYNEDLNVVKNTIYASQGIDWPKDKLNIWILDDGGREAFRQFAKDVGVHYIARTSHEHAKAGNINNALKYAKGEFVSIFDCDHVPTRSFLQMTMGWFLKEKELAMMQTPHHFFSPDPFERNLGRFRKTPNEGTLFYGLVQDGNDMWDATFFCGSCAVIRRGPLDEIGGIAVETVTEDAHTSLRLHRRGYTSAYMRIPQAAGLATESLSAHIGQRIRWARGMVQIFRLDNPLFGKGLKLVQRVCYANAMLHFLSGIPRLIFLTAPLAFLLLHAYIIYAPALMIALFVLPHMIHASLTNSKIQGKYRHSFWSEIYETVLAWYIAPPTFVALINPHKGKFNVTAKGGLVEEEYVDWVISRPYIYLVLLNLVGVAVGIWRFMYGPENEILTVWVSIVWVFYNLIILGGAVAVSVESKQVRRSHRVEMSMPAAIAREDGHLFSCTVHDYSDGGLGIKINGDAQVLEGQNARLLLKRGQQEYAFPVRVARVNGSEVGLQLLPLTNQQHIDFVQCTFARADTWALWQDSFPEDKPMESLLDILKLGFRGYRHLAEFSPPSVKVVFRALTSLVAWIASFVPRRPERAAPTLSADPAMAQQ

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 7 GO

Subcellular localization

Localization
CytoplasmicMembrane

Enzyme Commission (EC)

1

Gene Ontology (GO)

7
  • GO:0035438 Binding to cyclic-di-GMP, cyclic dimeric guanosine monophosphate.
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • GO:0016759 Catalysis of the reaction: nucleoside-disphosphate-glucose + ((1,4)-beta-D-glucosyl)(n) = nucleoside-disphosphate + ((1,4)-beta-D-glucosyl)(n+1).
  • GO:0006011 The chemical reactions and pathways involving UDP-alpha-D-glucose, a substance composed of alpha-D-glucose in glycosidic linkage with uridine diphosphate.
  • 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:0016760 Catalysis of the reaction: UDP-glucose + ((1,4)-beta-D-glucosyl)(n) = UDP + ((1,4)-beta-D-glucosyl)(n+1).
  • GO:0030244 The chemical reactions and pathways resulting in the formation of cellulose, a linear beta1-4 glucan of molecular mass 50-400 kDa with the pyranose units in the -4C1 conformation.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

61 records
Show feature table
Start End DB Term Name
576 638 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
228 252 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
690 796 Gene3D G3DSA:2.40.10.220 predicted glycosyltransferase like domains
588 610 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
273 505 CDD cd06421 CESA_CelA_like
174 190 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
275 550 SUPERFAMILY SSF53448 Nucleotide-diphospho-sugar transferases
275 550 InterPro IPR029044 Nucleotide-diphospho-sugar transferases
1 3 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.
20 28 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
49 149 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
553 575 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
228 250 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
1 19 Phobius SIGNAL_PEPTIDE Signal peptide region
217 227 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
191 196 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
639 659 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
151 173 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
694 790 Pfam PF07238 PilZ domain
694 790 InterPro IPR009875 PilZ domain
262 483 Gene3D G3DSA:3.90.550.10 Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A
262 483 InterPro IPR029044 Nucleotide-diphospho-sugar transferases
150 168 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
253 526 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
262 483 FunFam G3DSA:3.90.550.10:FF:000061 Cellulose synthase catalytic subunit [UDP-forming]
527 547 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
4 14 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
276 446 Pfam PF00535 Glycosyl transferase family 2
276 446 InterPro IPR001173 Glycosyltransferase 2-like
691 872 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
197 216 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
169 173 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
695 778 SUPERFAMILY SSF141371 PilZ domain-like
193 215 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
665 690 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
146 828 NCBIfam TIGR03030 UDP-forming cellulose synthase catalytic subunit
146 828 InterPro IPR003919 Cellulose synthase, subunit A
29 48 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
548 552 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
668 690 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
15 19 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
201 830 PANTHER PTHR43867 CELLULOSE SYNTHASE CATALYTIC SUBUNIT A [UDP-FORMING]
545 567 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
633 655 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
660 664 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
199 219 PRINTS PR01439 Cellulose synthase subunit A signature
199 219 InterPro IPR003919 Cellulose synthase, subunit A
363 387 PRINTS PR01439 Cellulose synthase subunit A signature
363 387 InterPro IPR003919 Cellulose synthase, subunit A
667 688 PRINTS PR01439 Cellulose synthase subunit A signature
667 688 InterPro IPR003919 Cellulose synthase, subunit A
227 252 PRINTS PR01439 Cellulose synthase subunit A signature
227 252 InterPro IPR003919 Cellulose synthase, subunit A
282 301 PRINTS PR01439 Cellulose synthase subunit A signature
282 301 InterPro IPR003919 Cellulose synthase, subunit A
524 550 PRINTS PR01439 Cellulose synthase subunit A signature
524 550 InterPro IPR003919 Cellulose synthase, subunit A
553 572 PRINTS PR01439 Cellulose synthase subunit A signature
553 572 InterPro IPR003919 Cellulose synthase, subunit A
593 612 PRINTS PR01439 Cellulose synthase subunit A signature
593 612 InterPro IPR003919 Cellulose synthase, subunit 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 · P2Rank

Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Pocket 1 P2Rank #1
0.999
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Surrounding area
Pocket 2 P2Rank #2
0.73
Likely same site as FPocket 74 2.3 Å 20 shared residues 95% of smaller site
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Surrounding area
Pocket 3 P2Rank #3
0.618
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.42
Likely same site as FPocket 71 4.4 Å 11 shared residues 79% of smaller site
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Surrounding area
Pocket 5 P2Rank #5
0.246
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #64
0.97 Unusual size
Show in viewer
Surrounding area
Pocket 2 FPocket #71
0.437
Likely same site as P2Rank 4 4.4 Å 11 shared residues 79% of smaller site
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Surrounding area
Pocket 3 FPocket #74
0.414 Unusual size
Likely same site as P2Rank 2 2.3 Å 20 shared residues 95% 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_A0A0H3GX37
AlphaFold DB full sequence Viewing
ColabFold KP13_00286
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.

54 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 4 records from similar proteins
Structural ligands 4 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
C2E PDB via homolog 690.4 Da · LogP -3.05 · TPSA 349.6 Open detail RCSB PDB
GDD PDB via homolog Detail RCSB PDB
LDA PDB via homolog Detail RCSB PDB
PLC PDB via homolog Detail RCSB PDB
ZINC12501894 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
C2E RCSB PDB Q3J125 690.4 Da LogP -3.05 TPSA 349.6 3 viol. ✓ Clean c1nc2c(n1[C@H]3[C@@H]([C@H]4[C@H](O3)CO[P@@](=O…
GDD RCSB PDB A3MTD6 605.3 Da LogP -4.63 TPSA 331.7 3 viol. ✓ Clean c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O…
LDA RCSB PDB Q3J125 229.4 Da LogP 4.48 TPSA 23.1 ✓ Ro5 ✓ Clean CCCCCCCCCCCC[N+](C)(C)[O-]
PLC RCSB PDB Q3J125 622.8 Da LogP 8.12 TPSA 108.4 2 viol. ✓ Clean CCCCCCCCCCCC(=O)OC[C@H](CO[P@](=O)(O)OCC[N+](C)…

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.