Microbiology

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    Protocols in Current Issue
    Single Genome Sequencing of Expressed and Proviral HIV-1 Envelope Glycoprotein 120 (gp120) and nef Genes
    [Abstract] The current study provides detailed protocols utilized to amplify the complete HIV-1 gp120 and nef genes from single copies of expressed or integrated HIV present in fresh-frozen autopsy tissues of patients who died while on combined antiretroviral therapy (cART) with no detectable plasma viral load (pVL) at death (Lamers et al ...
    Purification of Bacterial RNA from Infected Macrophages
    Authors:  Lior Lobel, Nadejda Sigal, Anna Pasechnek and Anat A. Herskovits, date: 11/20/2015, view: 6666, Q&A: 0
    [Abstract] Studying the transcriptome of bacterial pathogens during infection is a very informative and effective tool for discovering genes that contribute to successful infection. However, isolating bacterial RNA from infected cells or tissues is a challenging process due to the much higher amounts of host RNA in the lysates of infected cells. We have ...
    RNA Isolation from Synechocystis
    Authors:  Kirill S. Mironov and Dmitry A. Los, date: 03/20/2015, view: 15078, Q&A: 2
    [Abstract] The protocol describes the procedure of total RNA isolation from cells of the cyanobacterium Synechocystis sp. PCC 6803. This protocol is also applicable to Synechococcus elongatus PCC 7942 and PCC 6301, Thermosynechococcus vulcanus, and other unicellular and filamentous species of cyanobacteria that do not have thick ...
    RNA Isolation and Northern Blot Analysis
    Authors:  Ying Liao, To Sing Fung, Mei Huang, Shouguo Fang, Yanxin Zhong and Dingxiang Liu, date: 03/20/2014, view: 20156, Q&A: 0
    [Abstract] The northern blot is a technique used in molecular biology research to study gene expression by detection of RNA in a sample. With northern blotting it is possible to observe particular gene expression levels during differentiation, morphogenesis, as well as abnormal or diseased conditions. Here, we examine ATF3, ATF4, and GADD153 gene expression ...
    Isolating RNA from the Soil
    Authors:  Jacqueline M Chaparro and Jorge M Vivanco, date: 09/20/2013, view: 7984, Q&A: 0
    [Abstract] Next generation sequencing has allowed for the analysis and ability to identify the microbial communities present in the environment. While DNA extraction from environments (such as soil) have provided a wealth of knowledge regarding microbial communities there are drawbacks that one encounters when using DNA as opposed to RNA. RNA allows for the ...
    A Simple RNA Preparation Procedure from Yeast for Northern Blot Using Hot Phenol
    Author:  Yuehua Wei, date: 06/20/2012, view: 11312, Q&A: 0
    [Abstract] Compared to several expensive RNA extraction kits, the following protocol provides an economic and simple method for researchers to extract yeast RNA. This method can achieve RNA quality that is sufficient for most northern blot studies in yeast.



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