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image: Oldest-Known Proteins?

Oldest-Known Proteins?

By | September 19, 2016

Molecules extracted from 3.8 million-year-old ostrich eggshells appear to break the record for oldest preserved proteins.


image: Toggling CRISPR Activity with a Chemical Switch

Toggling CRISPR Activity with a Chemical Switch

By | September 12, 2016

Researchers design a Cas9 enzyme that cuts DNA only in the presence of particular drug.


image: Week in Review: September 5–9

Week in Review: September 5–9

By | September 9, 2016

Environmental magnetite in the human brain; prion structure takes shape; watching E. coli evolve in real time; learning from others’ behavior 


Ancestries of nearly two dozen indigenous groups in the region reveal a close link between the genetic clustering of populations and the Kalahari Desert’s ecogeography.


image: Zika Update

Zika Update

By | September 7, 2016

Virus’s genome to aid in diagnoses; bees caught in crossfire of mosquito sprays; Zika spreads in Asia; US Congress revisits Zika funding

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Tips on how to surmount the challenges of working with CRISPR to manipulate genes in human stems cells to study their function in specific diseases or to correct genetic defects in patient cells.

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image: What Sensory Receptors Do Outside of Sense Organs

What Sensory Receptors Do Outside of Sense Organs

By | September 1, 2016

Odor, taste, and light receptors are present in many different parts of the body, and they have surprisingly diverse functions.


image: One Receptor, Two Ligands, Different Responses

One Receptor, Two Ligands, Different Responses

By | August 31, 2016

Host and bacterial ligands that interact with the same cell-surface receptor induce different activities in human macrophages. 


image: Opinion: GMOs Are Not “Frankenfoods”

Opinion: GMOs Are Not “Frankenfoods”

By and | August 30, 2016

It behooves the scientific community to reflect on the public’s “Franken-” characterization of genetically modified foods.


The marsupials’ genomes show evidence of a rapid evolutionary response to selection imposed by devil facial tumor disease.


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