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tag mrna immunology ecology genetics genomics

Genetic Parasites and a Whole Lot More
Barry Palevitz | Oct 15, 2000 | 10+ min read
Photo: Ori Fragman, Hebrew University Hordeum spontaneum, the plant studied for BARE-1 retroelements. With genome sequences arriving almost as regularly as the morning paper, the public's attention is focused on genes--new genes to protect crops against pests; rogue genes that make bacteria resistant to antibiotics; faulty genes that, if fixed, could cure diseases such as muscular dystrophy. What many people don't realize is that genes account for only part of an organism's DNA, and in many c
Change of Expression
Steve Bunk | Jul 8, 2001 | 3 min read
For this article, Steve Bunk interviewed Rudolf Aebersold, cofounder, Institute for Systems Biology, Seattle. Data from the Web of Science (ISI, Philadelphia) show that Hot Papers are cited 50 to 100 times more often than the average paper of the same type and age. S.P. Gygi, Y. Rochon, B.R. Franza, R. Aebersold, "Correlation between protein and mRNA abundance in yeast," Molecular and Cellular Biology, 19:1720-30, March, 1999. (Cited in 114 papers) At virtually all levels of life sciences, fro
Illuminating Behaviors
Douglas Steinberg | Jun 1, 2003 | 6 min read
Courtesy of Genevieve Anderson If not for Nobel laureates Thomas Hunt Morgan, Eric R. Kandel, and Sydney Brenner, the notion of a general behavioral model might seem odd. Behaviors, after all, are determined by an animal's evolutionary history and ecological niche. They are often idiosyncratic, shared in detail only by closely related species. But, thanks to Morgan's research in the early 20th century, and Kandel's and Brenner's work over the past 35 years, the fly Drosophila melanogaster, t
2020 Top 10 Innovations
The Scientist | Dec 1, 2020 | 10+ min read
From a rapid molecular test for COVID-19 to tools that can characterize the antibodies produced in the plasma of patients recovering from the disease, this year’s winners reflect the research community’s shared focus in a challenging year.
2018 Top 10 Innovations
The Scientist | Dec 1, 2018 | 10+ min read
Biology happens on many levels, from ecosystems to electron transport chains. These tools may help spur discoveries at all of life's scales.
Premade cDNA Libraries
Sarah Goforth | Apr 15, 2001 | 10 min read
Suppliers of Whole-organism cDNA Libraries Suppliers of Tissue-specific cDNA Libraries The questions of gene function, interaction, and regulation are central to the science of molecular biology. Despite the myriad of new technologies, products, and techniques produced by the genomics revolution, some old standards remain just as useful as ever. One such technology is the cDNA (complementary DNA) library. The sheer number of companies offering premade and custom cDNA libraries and products th
A Look at Drosophila Pattern Formation
Jeffrey Perkel | Sep 2, 2001 | 9 min read
Researchers interested in gene expression studies adopt one of two approaches. They can either examine the expression of a given gene in a population of cells in aggregate, or they can study the gene on a cell-by-cell basis in situ. The advantage of the former approach is its simplicity: It is generally easy to prepare RNA or protein from a given tissue sample and to probe it for the gene or protein of interest. But there are several disadvantages associated with the population approach. First o
Master of the Cell
Judy Lieberman | Apr 1, 2010 | 10+ min read
By Judy Lieberman Master of the Cell RNA interference, with its powerful promise of therapy for many diseases, may also act as a master regulator of most—if not all—cellular processes. RNA silencing. Computer artwork showing a length of RNA (yellow with red rings) bound to an RNA-induced silencing complex (RISC). © Medi-Mation Ltd / Photo Researchers, Inc. ne of the biggest surprises in biology in the past d
Distinguishing Th1 and Th2 Cells
Jeffrey Perkel | May 13, 2001 | 10+ min read
Reagents That Distinguish Th1 and Th2 cells Courtesy of R&D SystemsSchematic representation of cytokines influencing the development of antigen-activated naive CD4+ T cells into Th1 and Th2 cells. Editor's note: Although individual techniques are associated with specific researchers in this article, it should be noted that these investigators commonly use several different techniques to analyze T lymphocyte populations. The human body is constantly under siege. It must defend itself fr
Taking The Measure Of The Message
Laura De Francesco | Nov 22, 1998 | 9 min read
Date: November 23, 1998Product Comparison Getting a measure of even a single RNA species has never been easy. Every few years, a new technique comes along--Northerns, ribonuclease protection assays, RT-PCR--that makes the task only incrementally easier. But a quantum leap in technology took place just a few years ago with the introduction of cDNA arrays, and suddenly not just one but hundreds to thousands of target nucleic acids can be analyzed simultaneously and precisely. Since then, array te

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