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Microfluidic ChIP Makes a Few Cells Go a Long Way

September 11, 2015

Chromatin immunoprecipitation (or ChIP) is a handy technique to study epigenetic profiles, but only if you have enough cells. The main problem with ChIP is that it can be a “greedy” technique that uses large numbers of cells while giving back the bare minimum of DNA as a result. This is problematic for the study of genome-wide […]

Microlasers Hold Big Promise for Next Generation Cellular Analysis

September 11, 2015

Recent work by Seok Hyun Yun and Matjaž Humar has shown us that laser shows aren’t just for Pink Floyd fans. These crafty researchers incorporated specific structures into individual cells, turning them into self-contained “microlasers”. In its simplest form, laser (or light amplification by stimulated emission of radiation) technology uses an energy source to amplify photons bouncing between reflective […]

CRISPR Hack Enhances Stem Cell Differentiation

September 11, 2015

From horses in the farmyard to yeast in beer production, human beings have a long history of putting nature’s gifts to work. This can also be said of CRISPR technology, which utilizes a Cas9 DNA endonuclease and a guide RNA to target and destroy specific DNA sites. Nature had intended a role for CRISPR in bacterial […]

A Polymerase Evolved for Your Bisulfite Converted DNA

September 11, 2015

Bisulfite conversion can be used in so many different applications that it’s not so surprisingly referred to as the gold standard for DNA methylation analysis. But getting to the gold can create some problems for DNA. The process of converting methylated DNA (5mC) to Uracil and then finally a Thymine is harsh as it involves […]

Custom-Made Histone Modifications Add Some Bling to Chromatin

September 11, 2015

Sure, the new Apple products announced this week represented new breakthroughs and yes, you’ll be able to personalize these devices with countless modifications like cases, color and screens. The real action though, was unfolding (pun intended) in the world of chromatin analysis as a new method surfaced for introducing tags or native modifications into histones (or any other […]

CombiGEM Takes Combinatorial miRNA Analysis to the Next Level

September 7, 2015

Single gene-focused research can sometimes be like the Indian story of the blind men and the elephant. The blind men, having never seen an elephant before, decide to touch one and feel it for themselves, to determine its shape. However, since they all grab different parts of the elephant, each can only describe what they feel, […]

DNA Methyltransferase Teams Up with Long Non-Coding RNA to Police Colon Cancer Cells

September 5, 2015

Mulder and Scully. Holmes and Watson. If TV and books are anything to go by, then unconventional pairings between the hot-headed detective and their calm and collected partner get results. Now it seems that another unlikely duo work together in the fight against crime of a biological nature. A new study reports that a DNA […]

Stem Cells Cycle their Way towards Differentiation

August 31, 2015

Genes that code for some developmental regulators in embryonic stem cells (ESCs) might be excused if they seem a little confused. The regulatory signals they receive from their enveloping histone environment are a combination of “Stop!” and “Go!” signals for their transcription. Although this seems counterintuitive, this combination of modifications, known as a bivalent domain, […]

UBER: Cross-Species, Drag-and-Drop Gene Circuits

August 26, 2015

There’s a bit of a dirty little secret in synthetic biology – gene circuits that work great in one species often require a lot of changes to work in anything else. This is one reason so many synbio papers contain the same two key words: E. and coli. Now, a new approach called UBER (Universal […]

RiboT: Synthetic Ribosome Opens Door to Independent Genetic Codes

August 25, 2015

Synthetic biologists have made a lot of progress in developing “orthogonal” genetic systems. DNA and RNA have been made with synthetic base pairs, and cells have been coaxed to produce proteins with synthetic amino acids. This expands the genetic code beyond the standard letters used by life on Earth, which could potentially open up new […]