A Biocatalytic Cascade for Versatile One-Pot Modification of mRNA Starting from Methionine Analogues
作者:Fabian Muttach、Andrea Rentmeister
DOI:10.1002/anie.201507577
日期:2016.1.26
thus preventing implementation of this strategy in cells. We present a two‐step enzymatic cascade for site‐specific mRNAmodificationstartingfrom stable methionineanalogues. Our approach combines the enzymatic synthesis of AdoMet with modification of the 5′ cap by a specific RNA methyltransferase in one pot. We demonstrate that a substrate panel including alkene, alkyne, and azido functionalities can
A Chemo-Enzymatic Approach for Site-Specific Modification of the RNA Cap
作者:Daniela Schulz、Josephin Marie Holstein、Andrea Rentmeister
DOI:10.1002/anie.201302874
日期:2013.7.22
Capped and gowned: A two‐step approach can be used to site‐specifically modify the 5′‐cap of eukaryotic mRNAs. First, a trimethylguanosinesynthase variant recognizes the m7G cap structure and introduces bioorthogonal groups using S‐adenosyl‐L‐methionine‐based cosubstrates. Then, the enzymatically introduced reporter groups are further modified by thiol–ene or CuAAC click chemistry (see scheme).
There is described an apparatus for measuring protein characteristics comprising an X-ray fluorescence (XRF) spectrometer comprising a source of polychromatic X-rays, an X-ray detector, a protein, a molecule that has been exposed to and at least weakly binds to the protein, a plurality of X-ray fluorescence signal data obtained by irradiating chemical elements in the protein and molecule with the polychromatic X-rays and a security system for maintaining records for the data from the plurality of X-ray fluorescence signal measurements. There is also described an x-ray microscope for measuring a sample.
描述了一种测量蛋白质特性的仪器,该仪器包括一个 X 射线荧光 (XRF) 光谱仪,其中包括一个多色 X 射线源、一个 X 射线探测器、一个蛋白质、一个已暴露于该蛋白质并至少与该蛋白质弱结合的分子、通过用多色 X 射线照射蛋白质和分子中的化学元素而获得的多个 X 射线荧光信号数据,以及一个用于维护多个 X 射线荧光信号测量数据记录的安全系统。此外,还介绍了一种用于测量样品的 X 射线显微镜。