Company: Sigma-Aldrich
Catalog#: R3501
Product evaluation:
Use of Geminivirus for Delivery of CRISPR/Cas9 Components to Tobacco by Agro-infiltration
[Abstract]  CRISPR/Cas9 system is a recently developed genome editing tool, and its power has been demonstrated in many organisms, including some plant species (Wang et al., 2016). In eukaryotes, the Cas9/gRNA complexes target genome sites specifically and cleave them to produce double-strand breaks (DSBs), which can be repaired by non-homologous end joining (NHEJ) pathway (Wang et al., 2016). Since NHEJ is error prone, mutations are thus generated. In plants, delivery of genome editing ...

Cell-based Assays to Monitor AID Activity
[Abstract]  The enzyme Activation induced deaminase (AID) underpins antibody affinity maturation and isotype switching through its mutagenic activity of deaminating deoxycytidine to deoxyuridine in DNA. Subsequent processing of the deoxyuridine initiates the processes of somatic hypermutation (SHM) and class switch recombination (CSR) in B cells. Structure-function analysis of AID requires sensitive and biologically relevant methods to measure its various activities. Here we describe simple but effective ...

Determination of Rifampicin-resistance Mutation Frequency and Analysis of Mutation Spectra in Mycobacteria
[Abstract]  Understanding the genetic safeguarding mechanism of Mycobacterium tuberculosis (Mtb) may help us to explain i), how Mtb survive the genetic assaults elicited by both reactive oxygen species (ROS) and reactive nitrogen species (RNS) produced by host macrophages and ii), why some strains of Mtb, e.g., Mtb strains from East Asian lineage and Beijing sublineage, exhibit high mutation rate and are more likely to acquire drug resistant mutations (e.g., rifampicin-resistance ...

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