Protein profile

PA0548

transketolase

Genome: NC_002516.2

Gene: PA0548 tktA Structure source: Experimental + AlphaFold UniProt Q9I5Y8
Amino acids 665
Annotations 7
Features 33
PDB binders 24
Druggability 0.731

Overview

Basic information about this protein and its source genome.

Accession
PA0548
Gene
PA0548 tktA
Status
annotated
Amino acids
665
Structure source
Experimental + AlphaFold

Target profile

Computed evidence for target prioritization.

Human off-target
hit
Human identity (%)
35.659
Human E-value
2.36e-16
Gut microbiome off-target
hit
Essential (DEG)
Y
Localization
Cytoplasmic

Selected Druggability evidence

Selected Druggability is the FPocket score chosen for ranking using the curated structure priority. The 3D viewer may show a different loaded structure, so its visible pockets can differ.

FPocket 0.731
Structure
Pocket

Sequence

Primary amino-acid sequence viewer.

MPSRRERANAIRALSMDAVQKANSGHPGAPMGMADIAEVLWRDYMQHNPSNPQWANRDRFVLSNGHGSMLIYSLLHLTGYDLGIEDLKNFRQLNSRTPGHPEYGYTAGVETTTGPLGQGIANAVGMALAEKVLAAQFNRDGHAVVDHYTYAFLGDGCMMEGISHEVASLAGTLRLNKLIAFYDDNGISIDGEVHGWFTDDTPKRFEAYGWQVIRNVDGHDADEIKTAIDTARKSDQPTLICCKTVIGFGSPNKQGKEECHGAPLGADEIAATRAALGWEHAPFEIPAQIYAEWDAKETGAAQEAEWNKRFAAYQAAHPELAAELLRRLKGELPADFAEKAAAYVADVANKGETIASRKASQNALNAFGPLLPELLGGSADLAGSNLTLWKGCKGVSADDAAGNYVFYGVREFGMSAIMNGVALHGGFIPYGATFLIFMEYARNAVRMSALMKQRVLYVFTHDSIGLGEDGPTHQPIEQLASLRLTPNLDTWRPADAVESAVAWKHAIERADGPSALIFSRQNLPHQARDVAQVADIARGGYVLKDCEGEPELILIATGSEVGLAVQAYDKLSEQGRKVRVVSMPCTSVYEQQDESYKQSVLPVEVGARIAIEAAHADYWYKYVGLDGRIIGMTSFGESAPAPALFEHFGFTLDNVLAVAEELLED

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 6 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

6
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0046872 Binding to a metal ion.
  • GO:0004802 Catalysis of the reversible transfer of a 2-carbon ketol group (CH2OH-CO-) from a ketose phosphate donor to an aldose phosphate acceptor.
  • GO:0006098 The metabolic process in which glucose-6-phosphate is oxidized to form carbon dioxide (CO2) and ribulose 5-phosphate, coupled to reduction of NADP+ to NADPH; ribulose 5-P then enters a series of reactions that can yield biosynthetic precursors (ribose-5-phosphate and erythrose-4-phosphate) and glycolytic intermediates (fructose-6-phosphate and glyceraldehyde-3-phosphate).
  • GO:0009052 The branch of the pentose-phosphate shunt which does not involve oxidation reactions. It comprises a series of sugar phosphate interconversions, starting with ribulose 5-P and producing fructose 6-P and glyceraldehyde 3-P.
  • 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.

Sequence Features

Domain/signature hits from InterPro and related databases.

33 records
Show feature table
Start End DB Term Name
2 663 PANTHER PTHR43522 TRANSKETOLASE
2 663 InterPro IPR033247 Transketolase family
533 664 SUPERFAMILY SSF52922 TK C-terminal domain-like
533 664 InterPro IPR009014 Transketolase C-terminal/Pyruvate-ferredoxin oxidoreductase domain II
354 525 SMART SM00861 Transket_pyr_3
354 525 InterPro IPR005475 Transketolase-like, pyrimidine-binding domain
5 320 SUPERFAMILY SSF52518 Thiamin diphosphate-binding fold (THDP-binding)
5 320 InterPro IPR029061 Thiamin diphosphate-binding fold
358 520 CDD cd07033 TPP_PYR_DXS_TK_like
326 537 Gene3D G3DSA:3.40.50.970 -
326 537 FunFam G3DSA:3.40.50.970:FF:000003 Transketolase
1 325 Gene3D G3DSA:3.40.50.970 -
538 665 Gene3D G3DSA:3.40.50.920 -
538 665 InterPro IPR009014 Transketolase C-terminal/Pyruvate-ferredoxin oxidoreductase domain II
538 664 FunFam G3DSA:3.40.50.920:FF:000003 Transketolase
416 438 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
2 325 FunFam G3DSA:3.40.50.970:FF:000004 Transketolase
5 333 Pfam PF00456 Transketolase, thiamine diphosphate binding domain
5 333 InterPro IPR005474 Transketolase, N-terminal
353 525 Pfam PF02779 Transketolase, pyrimidine binding domain
353 525 InterPro IPR005475 Transketolase-like, pyrimidine-binding domain
347 526 SUPERFAMILY SSF52518 Thiamin diphosphate-binding fold (THDP-binding)
347 526 InterPro IPR029061 Thiamin diphosphate-binding fold
12 32 ProSitePatterns PS00801 Transketolase signature 1.
12 32 InterPro IPR005474 Transketolase, N-terminal
540 655 Pfam PF02780 Transketolase, C-terminal domain
540 655 InterPro IPR033248 Transketolase, C-terminal domain
9 273 CDD cd02012 TPP_TK
9 273 InterPro IPR005474 Transketolase, N-terminal
6 663 NCBIfam TIGR00232 transketolase
6 663 InterPro IPR005478 Transketolase, bacterial-like
467 483 ProSitePatterns PS00802 Transketolase signature 2.
467 483 InterPro IPR020826 Transketolase binding site

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.

3D visualization script Full viewer

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Structural evidence

1 + 1

Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
PDB 4XEU
X-ray 1.95 Å A
100.0% 1-665
Viewing
AlphaFold PA0548
AlphaFold full sequence Loaded
Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer

Pockets (FPOCKET)

Showing top-ranked FPocket candidates by druggability. Druggability is color-coded: high (0.7 or higher), medium (0.4 to 0.69), low (below 0.4).

FPOCKET Sticks Spheres Surfaces Druggability Labels Zoom Positions
10 0.731
3 0.723

Pockets (P2RANK)

Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).

P2RANK Sticks Spheres Surfaces Score Probability Labels Zoom Positions
1 10.72 0.575
2 3.43 0.124
3 2.87 0.091
4 2.76 0.084
5 2.22 0.054

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.

74 records

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
5SP P34736 230.1 Da LogP -2.62 TPSA 144.5 ✓ Ro5 ✓ Clean C([C@H]([C@@H](C(=O)CO)O)O)OP(=O)(O)O
8EF P34736 426.3 Da LogP 1.37 TPSA 168.3 ✓ Ro5 ✓ Clean Cc1ncc(c(n1)N)CN2CS[C@H](C2=C)CCOP(=O)(O)OP(=O)…
8EL P34736 426.3 Da LogP 1.72 TPSA 168.3 ✓ Ro5 ✓ Clean Cc1ncc(c(n1)N)CN2CSC(=C2C)CCOP(=O)(O)OP(=O)(O)O
8EO P34736 427.3 Da LogP 1.03 TPSA 168.1 ✓ Ro5 ✓ Clean Cc1ncc(c(n1)N)C[N+]2=C([C@@H](SC2)CCOP(=O)(O)OP…
8FL P34736 442.3 Da LogP 1.04 TPSA 188.6 ✓ Ro5 ✓ Clean Cc1ncc(c(n1)N)CN2[C@@H](SC(=C2C)CCOP(=O)(O)OP(=…
8GF P34736 109.1 Da LogP 0.37 TPSA 51.8 ✓ Ro5 ✓ Clean Cc1nccc(n1)N
8ML P34736 686.5 Da LogP -2.34 TPSA 336.2 3 viol. ✓ Clean Cc1ncc(c(n1)N)CN2C(SC(C2=C)CCOP(=O)(O)OP(=O)(O)…
8N9 P34736 484.4 Da LogP 1.48 TPSA 208.8 2 viol. ✓ Clean Cc1ncc(c(n1)N)CN\2C(=C(S/C2=C(\CO)/O)CCOP(=O)(O…
BTB A0A6L7H165 209.2 Da LogP -3.01 TPSA 104.4 ✓ Ro5 ✓ Clean C(CO)N(CCO)C(CO)(CO)CO
E4P P34736 200.1 Da LogP -1.98 TPSA 124.3 ✓ Ro5 ✓ Clean C([C@H]([C@H](C=O)O)O)OP(=O)(O)O
F6R P34736 260.1 Da LogP -3.26 TPSA 164.8 1 viol. ✓ Clean C([C@H]([C@H]([C@@H](C(=O)CO)O)O)O)OP(=O)(O)O
HSX P34736 230.1 Da LogP -2.47 TPSA 136.7 ✓ Ro5 ✓ Clean C([C@@H]1[C@H]([C@H]([C@H](O1)O)O)O)OP(=O)(O)O
I22 P34736 290.2 Da LogP -3.90 TPSA 185.0 1 viol. ✓ Clean C([C@H]([C@H]([C@H]([C@@H](C(=O)CO)O)O)O)O)OP(=…
M6T P23254 438.3 Da LogP 0.52 TPSA 171.8 ✓ Ro5 ✓ Clean Cc1c(c(nc(n1)C)N)C[n+]2csc(c2C)CCO[P@](=O)(O)O[…
N1T P23254 423.3 Da LogP 0.81 TPSA 158.9 ✓ Ro5 ✓ Clean Cc1ccc(c(n1)N)C[n+]2csc(c2C)CCO[P@](=O)(O)O[P@@…
N3T P23254 423.3 Da LogP 0.81 TPSA 158.9 ✓ Ro5 ✓ Clean Cc1cc(c(cn1)C[n+]2csc(c2C)CCO[P@](=O)(O)O[P@@](…
NDQ P27302 441.3 Da LogP 0.54 TPSA 178.2 ✓ Ro5 ✓ Clean Cc1c(sc[n+]1Cc2cnc(nc2N)OC)CCOP(=O)(O)OP(=O)(O)O
P23 P34736 220.1 Da LogP 0.62 TPSA 113.3 ✓ Ro5 ✓ Clean CCCO[P@@](=O)(O)OP(=O)(O)O
PG5 A0A6L7H165 178.2 Da LogP 0.31 TPSA 36.9 ✓ Ro5 ✓ Clean COCCOCCOCCOC
POP P34736 176.0 Da LogP -2.08 TPSA 129.9 ✓ Ro5 ✓ Clean O[P@@](=O)([O-])O[P@@](=O)(O)[O-]
R5P Q0P7Y3 230.1 Da LogP -2.62 TPSA 144.5 ✓ Ro5 ✓ Clean C(C(C(C(C=O)O)O)O)OP(=O)(O)O
RP5 Q0P7Y3 230.1 Da LogP -2.47 TPSA 136.7 ✓ Ro5 ✓ Clean C([C@@H]1[C@H]([C@H]([C@@H](O1)O)O)O)OP(=O)(O)O
T5X P34736 655.4 Da LogP -2.15 TPSA 316.6 3 viol. ✓ Clean Cc1c(sc([n+]1Cc2cnc(nc2N)C)[C@](CO)([C@H]([C@@H…
T6F P34736 685.5 Da LogP -2.79 TPSA 336.9 3 viol. ✓ Clean Cc1c(sc([n+]1Cc2cnc(nc2N)C)[C@](CO)([C@H]([C@@H…

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.