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Emily has a PhD in Molecular Biology from Northwestern University – The Feinberg School of Medicine.
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Red Pill or Blue? Carrying out science often involves many difficult decisions! I see it all the time in RNA protocols – the “gracious” option of using purified water or Tris-EDTA (TE) buffer to dissolve (or elute, if you are using column purification) RNA. When I was trained in assessing RNA using UV spectrophotometry, graduate…
Traditionally, if you’re hoping to clone a DNA/RNA fragment (or insert) into a vector, such as a BAC you would need: Expensive exonucleases, called restriction enzymes: pacman-like enzymes that chomp at specific sequences in your destination vector or fragments to be inserted (often just “inserts”). Sequence homologies between your inserts and your destination vector, called…
Isn’t it a pain digesting, purifying and dephosphorylating your cloning vector prep to eliminate prevent high background in your ligation/transformation? A new generation of positive selection cloning vectors promises to eliminate all of that hassle by killing off any vector that has not taken up the insert you are trying to clone. Positive selection cloning…
Oligonucleotides are those smallish bits of DNA or RNA that we rely so heavily on for many of our molecular biology experiments. In their naked form, they are single, inert strands of DNA or RNA bases. But if you dress them up, you can increase their functionality. Here are some of the common oligo wardrobe…
In austerity times, nothing is in excess. Apart from saving reagents, which can be refilled with extra financial injections, there is a commodity that cannot be easily resupplied – tissue samples! If, like me, you have experienced the fear of not having enough sample for performing a qPCR, western blot, and conventional PCR from the…
Alternative splicing is a highly orchestrated process that uses a multitude of regulatory mechanisms. Splicing specificity involves a precise interaction between cis- and trans-acting regulatory elements, and factors that disrupt these interactions can result in aberrant splicing. There are multiple ways in which mutations can affect splicing fidelity: A point mutation in the cis-acting splice…
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