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tag carbon dating genetics genomics immunology

A fishing cat with a fish in its mouth
Genome Spotlight: Fishing cat (Prionailurus viverrinus)
Christie Wilcox, PhD | Dec 22, 2022 | 5 min read
A high-quality reference genome for this vulnerable feline may help scientists understand why they’re so prone to transitional cell carcinoma in captivity.
Iron Seeding Just Doesn't Pay
Sam Jaffe | Jul 4, 2004 | 6 min read
BRINGING ON THE NEXT ICE AGE?Dee Breger, Drexel UniversityAssumptions that tiny diatoms such as the ones shown above could fix carbon from the air and sink it to the bottom of the ocean have been hard to prove.The US Department of Energy has taken an interest in carbon sequestration, but a grand scheme to induce thick blooms of carbon-fixing algae has yet to bear fruit in early studies. The DOE directs a large share of its global warming budget to carbon-sequestration research, drawing on biolog
Making Things Grow: Insect Cells, Stem Cells, and Primary Cell Lines All Pose Challenges for Cell Culturists
Laura Defrancesco | Jun 21, 1998 | 5 min read
Date: June 22, 1998 Insect Cell Culture Media, Suppliers of Primary Cell Culture Media Advantages for Protein Expression Studies Since the mid-1950s cultures of insects--cockroaches, fruit flies, and leafhoppers, to name a few--have been the object of quiet study by physiologists and cell biologists. But along came genetic engineering and suddenly insect cultures have been put in the spotlight since they provide advantages over both bacterial and mammalian systems for recombinant protein prod
Cookbook For Eukaryotic Protein Expression: Yeast, Insect, and Plant Expression Systems
Christopher Smith | Nov 8, 1998 | 10+ min read
Date: November 9, 1998Baculovirus Expression Vectors In the recent past, efforts to elucidate the relationship between protein structure and biological function have intensified. Of particular interest is an understanding of the elements of sequence and structure that mediate specific functions. Often the protein of interest is in low abundance in its natural source and can be difficult to purify and/or unstable--subject to proteolytic cleavage or unfolding/non specific refolding during exhaust
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
Those We Lost in 2018
Ashley Yeager | Dec 26, 2018 | 10+ min read
The scientific community said goodbye to a number of leading researchers this year.
Flow Cytometry On-a-Chip
Jeffrey M. Perkel | Jun 1, 2015 | 7 min read
Novel microfluidic devices give researchers new ways to count and sort single cells.
Unmasking Secret Identities
Kate Yandell | Feb 1, 2014 | 9 min read
A tour of techniques for measuring DNA hydroxymethylation
Steal My Sunshine
David Smith | Jan 1, 2013 | 10+ min read
How photosynthetic organisms get taken up, passed around, and discarded throughout the eukaryotic domain
Notable
Jeffrey Perkel | Jan 6, 2002 | 4 min read
J.A. Camarero et al., "Peptide chemical ligation inside living cells: In vivo generation of a circular protein domain," Bioorganic and Medicinal Chemistry, 9[9]:2479-84, September 2001. F1000 Rating: Recommended "To investigate whether chemo-selective peptide ligations work in vivo, the authors demonstrate the in vivo head-to-tail cyclization of a bioactive SH3 domain using native chemical ligation. The protein precursor was constructed using a clever combination of an intein-fusion protein an

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