Structure and Biocatalytic Scope of Coclaurine
<i>N</i>
‐Methyltransferase
作者:Matthew R. Bennett、Mark L. Thompson、Sarah A. Shepherd、Mark S. Dunstan、Abigail J. Herbert、Duncan R. M. Smith、Victoria A. Cronin、Binuraj R. K. Menon、Colin Levy、Jason Micklefield
DOI:10.1002/anie.201805060
日期:2018.8.13
plant secondary metabolites, which have been exploited to develop analgesics, antibiotics, antitumor agents, and other therapeutic agents. Biosynthesis of BIAs proceeds via a common pathway from tyrosine to (S)‐reticulene at which point the pathway diverges. Coclaurine N‐methyltransferase (CNMT) is a key enzyme in the pathway to (S)‐reticulene, installing the N‐methyl substituent that is essential for
Directed Evolution of a Halide Methyltransferase Enables Biocatalytic Synthesis of Diverse SAM Analogs
作者:Qingyun Tang、Christoph W. Grathwol、Aşkın S. Aslan‐Üzel、Shuke Wu、Andreas Link、Ioannis V. Pavlidis、Christoffel P. S. Badenhorst、Uwe T. Bornscheuer
DOI:10.1002/anie.202013871
日期:2021.1.18
Biocatalytic alkylations are important reactions to obtain chemo‐, regio‐ and stereoselectively alkylated compounds. This can be achieved using S‐adenosyl‐l‐methionine (SAM)‐dependent methyltransferases and SAM analogs. It was recently shown that a halide methyltransferase (HMT) from Chloracidobacterium thermophilum can synthesize SAM from SAH and methyl iodide. We developed an iodide‐based assay for
Preparation, Assay, and Application of Chlorinase SalL for the Chemoenzymatic Synthesis of S-Adenosyl-l-Methionine and Analogs
作者:Tony D. Davis、Sylvia Kunakom、Michael D. Burkart、Alessandra S. Eustaquio
DOI:10.1016/bs.mie.2018.02.012
日期:——
However, SAM and itsanalogs are expensive and unstable, degrading rapidly under physiological conditions. Thus, the availability of methods to prepare SAM in situ is desirable. In addition, synthetic methods to generate SAM analogs suffer from low yields and poor diastereoselectivity. The chlorinase SalL from the marine bacterium Salinispora tropica catalyzes the reversible, nucleophilic attack of chloride
New s-adenosyl-L-methionine analogues with extended activated groups for transfer by methyltransferases
申请人:RWTH Aachen
公开号:EP1712557A1
公开(公告)日:2006-10-18
S-Adenosyl-L-methionine analogues of formula (I)
wherein wherein R comprises a carbon-carbon double bond, carbon-oxygen double bond, carbon-sulfur double bond, carbon-nitrogen double bond, a carbon-carbon triple bond, carbon-nitrogen triple bond or an aromatic carbocyclic or heterocyclic system in β-position to the sulfonium center,
X- is an organic or inorganic anion carrying one or more negative charges,
Z is -CR1R2-, -O-, -S- or -NR3- and
R1, R2and R3 are independently selected from H, D and C1 - C12 alkyl.
Selective Biocatalytic
<i>N</i>
‐Methylation of Unsaturated Heterocycles
作者:Felipe Ospina、Kai H. Schülke、Jordi Soler、Alina Klein、Benjamin Prosenc、Marc Garcia‐Borràs、Stephan C. Hammer
DOI:10.1002/anie.202213056
日期:2022.11.25
N-Methylated and -alkylated unsaturated heterocycles are privileged scaffolds in pharmaceuticals that are often tedious to synthesize. Now, promiscuous and engineered enzymes can be used to access such molecules through alkylation with high regioselectivity, high yield and on a preparative scale using simple starting materials.