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…DIY prep for a while. Why Use a DIY Method for DNA Isolation? Unlike with kits, there are no propriety reagents in a DIY protocol. You know what exactly is…
…with Virkon, and for solid media, autoclaving seems to be the only good option. The microwave media prep method is certainly interesting. Weiss and Galande’s results seem to be pretty…
…to vEM. Are you performing or considering using vEM in your research and looking for advice on sample preparation? Are you curious about how it differs from sample prep for…
Before you can perform histology on your tissue samples – you need to prep them. This means you must fix them, embed them, and section them into thin slices for…
…frequently are gummy, particularly if the protein prep is from cell or tissue extracts and therefore contains DNA. Boiling homogenates your sample, as the heat melts any DNA in the…
…thickness of the slice) so if you combine a couple slices for each prep, you will have enough DNA to load 5-10 μl (from a 50 μl eluate) on a gel…
…a fraction of your protein. After extracting as much of your protein as possible you must prep them for electrophoresis. This is typically done by mixing them with sample/loading buffer…
…TEV cleavage, you may find that the prep contains TEV protease (28K, if His-tagged ~53K) and IgG heavy chain (~53K). This is not important if you want to stain the…
…(5-20 ng/µl). Furthermore, and from experience, your prep won’t always be pure when measured on a Nanodrop, which makes it difficult to quantify how much plasmid you actually have! Ok…
…for 30 minutes. Spin in a microcentrifuge at 14,000 rpm, 4°C for 30 minutes. Remove and keep supernatant. This is your crude AAV prep. If you’re using a plasmid expressing…
…isn’t removed in the course of the purification, then it can be quite handy for concentrating the protein at the end of the prep. Maltose binding protein (MBP), glutathione-s-transferase (GST),…
…simple, prep can easily generate hundreds of thousands of units of highly purified polymerase per liter of culture. Put another way, one batch can provide a lab of 10-12 people…
…to make great DIY electrocompetent E. coli prep. In this article, you’ll discover a protocol for making DIY electrocompetent E. coli strains that you can use for electroporation. I’ve also…
…1. Protein or Receptor Structure Prep To start with, one needs to obtain a 3D-structure of the protein (Protein Databank Structures or homology models). Then you add the correct number…
…from the cells. Use a ‘dirty’ DNA prep for most mouse genotyping PCR protocols. They are quick, easy, and inexpensive. An example is the HotSHOT technique of DNA preparation: boil…
…PCR product you are using in the transformation. Plate several concentrations of your transformed suspension (e.g. 10 µl of bacterial prep, 20 µl, 50 µl, 100 µl) and only pick…
…of prep time, using coffee filters… Yes, using coffee filters and funnels purchased from any grocery store, the precipitated genomic DNA, protein and cell debris is filtered out prior to…
…annotated reference genome. rRNA One key measurement is the amount of ribosomal RNA (rRNA). This is important since the removal of rRNA by various RNA sample prep protocols is quite…
…comparing size selection methods for miRNA and small non-coding RNA discovery. The scientists, from McGill University and the European Molecular Biology Laboratory, compared the Pippin Prep from Sage Science to…
…PGM and Proton machines, library construction is like other sequencing processes, including DNA fragmentation, end polishing with enzymes, and ligation of adapters. After that, things get a little different. Amplifying…
…with SELEX New aptamers are obtained from “systematic evolution of ligands by exponential enrichment” (SELEX). In brief, SELEX is an extensive oligonucleotide library consisting of randomly generated sequences flanked by…
…reads to a reference sequence, or known genome, will show similarities and differences. Strand specificity: Some library preparation approaches allow for the retention of strand-specific information so that aligned cDNA-derived…
…Proteotypic Peptide Analyzing Tool Thermo Fisher Scientific •Analyzes physio-chemical properties and estimates ease of synthesis Peptide Library design tools GenScript® •Epitope mapping •Alanine scanning among other analyses Peptide Library Design…
…Information Service for the Health Sciences Library System at the University of Pittsburgh and can be accessed from their webpage via search.HSLS.MolBio. The purpose of the manually curated OBRC is…
…A while back I was doing a project where I had to make a mutation library of a plasmid. There are a number of ways to do this but I…
…misused this way. It was introduced to help librarians manage the journal collection of the library and not for assessing the worth of an article or an author per se….
…predicted locations with a restriction endonuclease. Then, the digested chromatin is diluted and re-ligated. After reversal of cross-linking and protein digestion, the result is a library of hybrid DNA where…
…Your Way Through a Book For our precious bookworms, there’s plenty of good introductory books to borrow from the library, but one that I’d recommend would be Stem Cell and…
…so even if you had a mix of long and short fragments in your library, you’d wind up with much shorter average read lengths than the instrument is capable of…
…loss-of-function mutations using an assortment of RNA sequences (an RNA library).8 Nature special: CRISPR Cancer Therapy The development of cancer therapy using gene editing has become one of the lastest…
…PCR reaction using a high-fidelity polymerase (without strand displacement activity), using one cycle for a single insert, and more cycles depending on number of fragments and library complexity (between 2…
…sciences, many departments are moving toward more practical dissertations. Instead of expecting you to labor over a tome that is only going to gather dust in the library, they may…
…check out their FAQ for Information Professionals [4] or review their technical bulletins. [5-7] The US National Library of Medicine has a great webinar with downloadable slides if you want…
…two main traditional methods of targeted sequencing: hybridization capture probes and amplification by PCR. Hybridization involves first building a sequencing library, then adding carefully designed oligo baits that hybridize to…
…interest or make a cDNA library and probe it for a specific sequence or activity. There are several advantages to using cDNA as opposed to genomic DNA for doing this:…
…ratio. By having a library available with known metabolites identifying everyone’s retention time and m/z ratio, you can use the library to identify unknowns in your sample. Furthermore, the area…
…confer the strain the ability to resist T1 and T5 phage infection. This can dramatically reduce genetic contaminants during a library construction.2 Important E. coli Machinery Methylation The restriction system…
…at a university, your library is likely to have people whose job it is to connect you to the bioinformatics programs available at the school and teach you how to…
…library’s archives, let’s face it: most of our research and literature searches are now done online (the fact that you’re reading this post also proves my point!). For the biomedical…
…paper online stop you. Some old journals and books are not digitized or are not accessible on the internet. However, you can go to the real library to request a…
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