The thioesterase domain of the polyketide synthase involved in the biosynthesis of the 20-membered macrolactam antibiotic vicenistatin (VinTE) was found to catalyze oligomerization and macrocyclization of omega-hydroxy fatty acid ethyl esters to afford 17-28-membered macrocyclic lactones. The ring sizes of the macrocycles appear to be limited to the more moderate sizes because of the space limitation of the active site of VinTE. It was also verified that the initially formed linear dimer is first released from the active site of VinTE and then is recognized again by VinTE prior to its transformation to the cyclic dimer.
Dale, Johannes; Schwartz, Jan-Erik, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1986, vol. 40, # 7, p. 559 - 567
作者:Dale, Johannes、Schwartz, Jan-Erik
DOI:——
日期:——
DALE J.; SCHWARTZ J. -E., ACTA CHEM. SCAND., 40,(1986) N 7, 559-567
作者:DALE J.、 SCHWARTZ J. -E.
DOI:——
日期:——
Vielgliedrige heterocyclische Verbindungen VIII. Zur Kenntnis der hochgliedrigen Mono- und Poly-lȧctonringe
作者:M. Stoll、A. Rouvé
DOI:10.1002/hlca.193501801153
日期:——
1. Es wurde gezeigt, dass die der Veresterungsreaktion entgegenlaufende Verseifungsreaktion keine messbare Geschwindigkeit besitzt.