Protein target profile

KP13_00276

Cellulose synthase catalytic subunit

Genome: KpKP13 Gene: AHE42187.1 acsA 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GX47
Length 703
Pocket druggability 0.989
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
1.1% 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.

Localization

Localization
CytoplasmicMembrane

Structure confidence

ColabFold pLDDT
90.36 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 0.989
Structure A0A0H3GX47
Pocket Pocket 29
P2Rank 0.999
Structure A0A0H3GX47
Pocket Pocket 1
ColabFold model
FPocket 0.991 · Pocket 43
P2Rank 0.999 · Pocket 1
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 51 / 4744 genomes with a hit
Prevalence 1.1%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MKKSLFWLLALVLSPVAVLVVITPMDSQKQYIFGLLSIGILFLMGFSKRRSVSVIMVVTSLLMSTRYMYFRLTQTLHFNSSIEAILGMGLFLAEVYIWVMLLLNYLQTVWPLKRGIVPLPDDMSKWPTVDIYIPSYNEPLEVVRDTVLAAQCIDYPKDKMKIYLLDDGKRSEFAVFAADVGVGYITRNDNKHAKAGNLNHALTLTQGELICVFDCDHVATRVFLQATVGGFLKDPMLALVQTPHYFYSPDPFERNLSVGRNIPNEGMLFYGPIQQGNDNWNATFFCGSCAVIRREALAQIGGFAVETVTEDAHTALKFQRLGWKSAFLDIPLAAGLATERLVVHVIQRTRWARGMTQIFRVDNPLFGRGLTFQQRLCYLSAMLYYQFALPRVVFVTAPLAYLLFNLNIIYSSASLIVSYALPHLFLAIYVGSRMNGRYRYSFWGEIYDIVLAFHLVLPTLVTMIFPKRGKFNVTDKGGLLDVGYFDFTVVRPHLVVACLLALGVVVGIVRAIGHDYFGSDPNVIALNVGWGIYSLIFLLAAIAVARETRQVRKTIRIDVDIPVVIHYASGIVSRSHTADLSMGGCRVVAPDNRHLEDDIEEIELILQSGAISIPAQLVTSDERFLRLKFDEDIPLSRRRELVRVVLARADAWINPPRPQDNPFRSFFTILRCVFELFWLTWKTRRSQRNRATVAKTAQEDGTL

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 7 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

7
  • GO:0035438 Binding to cyclic-di-GMP, cyclic dimeric guanosine monophosphate.
  • 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.
  • 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:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • GO:0016760 Catalysis of the reaction: UDP-glucose + ((1,4)-beta-D-glucosyl)(n) = UDP + ((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.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

68 records
Show feature table
Start End DB Term Name
1 19 SignalP_EUK SignalP-TM SignalP-TM
81 106 PRINTS PR01439 Cellulose synthase subunit A signature
81 106 InterPro IPR003919 Cellulose synthase, subunit A
447 466 PRINTS PR01439 Cellulose synthase subunit A signature
447 466 InterPro IPR003919 Cellulose synthase, subunit A
378 404 PRINTS PR01439 Cellulose synthase subunit A signature
378 404 InterPro IPR003919 Cellulose synthase, subunit A
523 544 PRINTS PR01439 Cellulose synthase subunit A signature
523 544 InterPro IPR003919 Cellulose synthase, subunit A
217 241 PRINTS PR01439 Cellulose synthase subunit A signature
217 241 InterPro IPR003919 Cellulose synthase, subunit A
136 155 PRINTS PR01439 Cellulose synthase subunit A signature
136 155 InterPro IPR003919 Cellulose synthase, subunit A
53 73 PRINTS PR01439 Cellulose synthase subunit A signature
53 73 InterPro IPR003919 Cellulose synthase, subunit A
407 426 PRINTS PR01439 Cellulose synthase subunit A signature
407 426 InterPro IPR003919 Cellulose synthase, subunit A
487 511 PRINTS PR01439 Cellulose synthase subunit A signature
487 511 InterPro IPR003919 Cellulose synthase, subunit A
1 20 Phobius SIGNAL_PEPTIDE Signal peptide region
48 53 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
107 382 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
431 441 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
127 359 CDD cd06421 CESA_CelA_like
108 405 SUPERFAMILY SSF53448 Nucleotide-diphospho-sugar transferases
108 405 InterPro IPR029044 Nucleotide-diphospho-sugar transferases
383 402 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
408 430 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
2 675 NCBIfam TIGR03030 UDP-forming cellulose synthase catalytic subunit
2 675 InterPro IPR003919 Cellulose synthase, subunit A
442 465 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
117 337 Gene3D G3DSA:3.90.550.10 Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A
117 337 InterPro IPR029044 Nucleotide-diphospho-sugar transferases
5 25 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
73 83 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
52 69 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
302 433 Pfam PF03552 Cellulose synthase
302 433 InterPro IPR005150 Cellulose synthase
547 652 Gene3D G3DSA:2.40.10.220 predicted glycosyltransferase like domains
84 106 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
682 703 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
84 106 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
552 631 SUPERFAMILY SSF141371 PilZ domain-like
54 72 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
443 465 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
21 29 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
524 545 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
523 545 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
5 13 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
403 407 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
408 430 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
30 47 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
30 47 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
513 523 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
546 662 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
663 681 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
494 512 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
130 300 Pfam PF00535 Glycosyl transferase family 2
130 300 InterPro IPR001173 Glycosyltransferase 2-like
489 511 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
1 13 SignalP_GRAM_POSITIVE SignalP-TM SignalP-TM
466 493 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
14 20 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
382 404 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
550 645 Pfam PF07238 PilZ domain
550 645 InterPro IPR009875 PilZ domain
1 4 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.
57 547 PANTHER PTHR43867 CELLULOSE SYNTHASE CATALYTIC SUBUNIT A [UDP-FORMING]

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 #29
0.989
Unusual size
Show in viewer
Surrounding area
Site 2 FPocket #54
0.979
Unusual size
Show in viewer
Surrounding area

Binding pockets · P2Rank

Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Site 1 P2Rank #1
0.999
Show in viewer
Surrounding area
Site 2 P2Rank #2
0.297
Show in viewer
Surrounding area
Site 3 P2Rank #3
0.188
Show in viewer
Surrounding area
Site 4 P2Rank #4
0.108
Show in viewer
Surrounding area
Site 5 P2Rank #5
0.096
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_A0A0H3GX47
AlphaFold DB full sequence Viewing
ColabFold KP13_00276
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.