Entries by Covaris

An Integrated Platform for Isolation, Processing, and Mass Spectrometry-based Proteomic Profiling of Rare Cells in Whole Blood

Abstract Isolation and molecular characterization of rare cells (e.g. circulating tumor and stem cells) within biological fluids and tissues has significant potential in clinical diagnostics and personalized medicine. The present work describes an integrated platform of sample procurement, preparation, and analysis for deep proteomic profiling of rare cells in blood. Microfluidic magnetophoretic isolation of target […]

Streamlined Ultra Low Sample Input and Processing Volume Chromatin Shearing Protocols for Fly Embryos and Mammalian Cell Lines

These protocols have been optimized for both mammalian cell lines and fly embryos and reliably fragment chromatin in low volumes (from 20 to 50 μl) from down to 10,000 mammalian cells and 5 stage-17 Drosophila embryos. They provide a good starting point when aiming to develop and optimize reduced cell and volume chromatin shearing protocols for […]

Evaluation of Next Generation Library Preparation using DNA Extracted from Dried Blood Spots using truXTRAC® DBS DNA kit

Dried Blood Spots (DBS) provide an easy and inexpensive way to collect and store peripheral blood specimens from infants, children nd adults.[1] The use of DBS allows for less invasive procedures for patients and easier shipment while still providing the ability to run molecular or clinical biochemical assays. This convenient method for the long term room-temperature […]

A rapid, standardized protein extraction method using adaptive focused acoustics for identification of mycobacteria by MALDI-ToF MS

Mycobacterial identification using MALDI-ToF MS (MALDI) has been hindered by inadequate extraction methods. Adaptive Focused Acoustics™ uses concentrated ultrasonic energy to achieve cellular disruption. Using this technology, we developed a rapid mycobacterial inactivation/protein extraction method for MALDI- based identification. Agreement for identification to the species level versus conventional identification was stratified by log confidence cut-offs of […]

Trans-Pacific-RAD-Seq Population Genomics Confirms Introgressive Hybridization in Eastern Pacific Pocillopora Corals

Discrepancies between morphology-based taxonomy and phylogenetic systematics are common in Scleractinian corals. In Pocillopora corals, nine recently identified genetic lineages disagree fundamentally with the 17 recognized Pocillopora species, including 5 major Indo-Pacific reef-builders. Pocillopora corals hybridize in the Tropical Eastern Pacific, so it is possible that some of the disagreement between the genetics and taxonomy […]

RAD-Seq derived markers flank the shell colour and banding loci of the Cepaea nemoralis supergene

Studies on the classic shell colour and banding polymorphism of the land snail Cepaea played a crucial role in establishing the importance of natural selection in maintaining morphological variation. Cepaea is also a pre-eminent model for ecological genetics because the outward colour and banding phenotype is entirely genetically determined, primarily by a ‘supergene’ of at […]