Pseudotropine acyltransferase

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Pseudotropine acyltransferase
Pseudotropine acyltransferase
Identifiers
EC no.	2.3.1.186
CAS no.	162535-26-4&title= 138440-78-5, 162535-26-4
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
PMC
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PubMed	articles
NCBI	proteins

Last updated August 03, 2025

Pseudotropine acyltransferase (EC 2.3.1.186, pseudotropine:acyl-CoA transferase, tigloyl-CoA:pseudotropine acyltransferase, acetyl-CoA:pseudotropine acyltransferase, pseudotropine acetyltransferase, pseudotropine tigloyltransferase, PAT) is an enzyme with systematic name acyl-CoA:pseudotropine O-acyltransferase.^[1]^[2]^[3]^[4] This enzyme catalyses the following chemical reaction

acyl-CoA + pseudotropine

\rightleftharpoons

CoA + O-acylpseudotropine

This enzyme exhibits absolute specificity for the exo/3beta configuration found in pseudotropine as tropine (tropan-3alpha-ol).

References

↑ Rabot S, Peerless AC, Robins RJ (1995). "Tigloyl-CoA:pseudotropine acyltransferase — an enzyme of tropane alkaloid biosynthesis". Phytochemistry. 39 (2): 315–322. Bibcode:1995PChem..39..315R. doi:10.1016/0031-9422(94)00907-b.
↑ Robins RJ, Bachmann P, Robinson T, Rhodes MJ, Yamada Y (November 1991). "The formation of 3 alpha- and 3 beta-acetoxytropanes by Datura stramonium transformed root cultures involves two acetyl-CoA-dependent acyltransferases". FEBS Letters. 292 (1–2): 293–7. Bibcode:1991FEBSL.292..293R. doi: 10.1016/0014-5793(91)80887-9 . PMID 1959620.
↑ Robins RJ, Bachmann P, Peerless AC (1994). "Esterification reactions in the biosynthesis of tropane alkaloids in transformed root cultures". Plant Cell Tissue Organ Cult. 38 (2–3): 241–247. Bibcode:1994PCTOC..38..241R. doi:10.1007/bf00033883. S2CID 21524758.
↑ Boswell HD, Dräger B, McLauchlan WR, Portsteffen A, Robins DJ, Robins RJ, Walton NJ (November 1999). "Specificities of the enzymes of N-alkyltropane biosynthesis in Brugmansia and Datura". Phytochemistry. 52 (5): 871–8. Bibcode:1999PChem..52..871B. doi:10.1016/S0031-9422(99)00293-9. PMID 10626376.

External links

Pseudotropine+acyltransferase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

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[1] Rabot S, Peerless AC, Robins RJ (1995). "Tigloyl-CoA:pseudotropine acyltransferase — an enzyme of tropane alkaloid biosynthesis". Phytochemistry. 39 (2): 315–322. Bibcode:1995PChem..39..315R. doi:10.1016/0031-9422(94)00907-b.

[2] Robins RJ, Bachmann P, Robinson T, Rhodes MJ, Yamada Y (November 1991). "The formation of 3 alpha- and 3 beta-acetoxytropanes by Datura stramonium transformed root cultures involves two acetyl-CoA-dependent acyltransferases". FEBS Letters. 292 (1–2): 293–7. Bibcode:1991FEBSL.292..293R. doi: 10.1016/0014-5793(91)80887-9 . PMID 1959620.

[3] Robins RJ, Bachmann P, Peerless AC (1994). "Esterification reactions in the biosynthesis of tropane alkaloids in transformed root cultures". Plant Cell Tissue Organ Cult. 38 (2–3): 241–247. Bibcode:1994PCTOC..38..241R. doi:10.1007/bf00033883. S2CID 21524758.

[4] Boswell HD, Dräger B, McLauchlan WR, Portsteffen A, Robins DJ, Robins RJ, Walton NJ (November 1999). "Specificities of the enzymes of N-alkyltropane biosynthesis in Brugmansia and Datura". Phytochemistry. 52 (5): 871–8. Bibcode:1999PChem..52..871B. doi:10.1016/S0031-9422(99)00293-9. PMID 10626376.

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v t e Transferases: acyltransferases (EC 2.3)
2.3.1: other than amino-acyl groups	acetyltransferases: Acetyl-Coenzyme A acetyltransferase N-Acetylglutamate synthase Choline acetyltransferase Dihydrolipoyl transacetylase Acetyl-CoA C-acyltransferase Beta-galactoside transacetylase Chloramphenicol acetyltransferase N-acetyltransferase Serotonin N-acetyl transferase HGSNAT ARD1A Histone acetyltransferase P300/CBP NAT2 palmitoyltransferases: Carnitine O-palmitoyltransferase CPT1 CPT2 Serine C-palmitoyltransferase SPTLC1 SPTLC2 other: Acyltransferase like 2 Aminolevulinic acid synthase Beta-ketoacyl-ACP synthase Glyceronephosphate O-acyltransferase Lecithin—cholesterol acyltransferase Glycerol-3-phosphate O-acyltransferase 1-acylglycerol-3-phosphate O-acyltransferase 2-acylglycerol-3-phosphate O-acyltransferase ABHD5
2.3.2: Aminoacyltransferases	Gamma-glutamyl transpeptidase Peptidyl transferase Transglutaminase Tissue transglutaminase Keratinocyte transglutaminase Factor XIII
2.3.3: converted into alkyl on transfer	Citrate synthase Decylcitrate synthase Citrate (Re)-synthase Decylhomocitrate synthase 2-methylcitrate synthase 2-ethylmalate synthase 3-ethylmalate synthase ATP citrate lyase Malate synthase HMG-CoA synthase HMGCS2 2-hydroxyglutarate synthase 3-propylmalate synthase 2-isopropylmalate synthase Homocitrate synthase Sulfoacetaldehyde acetyltransferase

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)