Bright purple and orange lactobacillus bacteria.
How a Specific Gut Bacterium May Cause Type 1 Diabetes
A bacterium that produces an insulin-like peptide can give mice type 1 diabetes, and infection with the microbe seems to predict the onset of the disease in humans, a study finds.
How a Specific Gut Bacterium May Cause Type 1 Diabetes
How a Specific Gut Bacterium May Cause Type 1 Diabetes

A bacterium that produces an insulin-like peptide can give mice type 1 diabetes, and infection with the microbe seems to predict the onset of the disease in humans, a study finds.

A bacterium that produces an insulin-like peptide can give mice type 1 diabetes, and infection with the microbe seems to predict the onset of the disease in humans, a study finds.

peptide
red ants coming out of dirt hole
Bull Ant Venom Evolved to Make Bites More Painful to Mammals
Dan Robitzski | Jul 5, 2022
A peptide found in bull ant venom closely resembles a hormone of its primary predator, triggering hypersensitivity and making subsequent bites even more painful than the ones that came before.
An illustration depicting pores on a membrane
DNA Nanopore Sequencing Adapted for Protein Sequence Comparisons
Sophie Fessl | Feb 14, 2022
Researchers link a stretch of DNA to a peptide of interest and measure current changes as the molecule is pulled by a helicase through a nanopore.
An APP-knockout neuron (right) shows extended axonal and reduced dendritic growth compared with a normal mouse neuron (left). Scale bar 50 µm.
Amyloid Precursor Protein Linked to Brain Development Mechanisms
Catherine Offord | Dec 1, 2021
Researchers provide evidence that the Alzheimer’s-associated protein calibrates a signaling pathway that is conserved across the animal kingdom.
 Optimizing Protein Expression and Production
Technique Talk: Optimizing Protein Expression and Production
The Scientist Creative Services Team | Sep 2, 2021
Learn how to efficiently produce large quantities of a biologically active protein.
800x560-sept-15-2021
Using Nanopores to Sense and Sequence Proteins
The Scientist Creative Services Team | Aug 30, 2021
Aleksei Aksimentiev and Stefan Howorka discuss challenges in amino acid sensing with nanopores and approaches to design efficient protein sequencing technology.
Cancer Vaccines: Raising a T Cell Army
Niki Spahich, PhD | Apr 1, 2021
Vaccines against various forms of cancer prime the immune system to attack.
RNA droplets
Image of the Day: Liquid Compartments
Nicoletta Lanese | Aug 28, 2019
Membraneless organelles appear highly sensitive to ion concentrations in their environment.
Image of the Day: Ocean Wonder
Sukanya Charuchandra | Sep 4, 2018
Molecules similar to those produced by sea anemones are neuroprotective in a mouse cell model of Alzheimer’s disease.
Nobel Prize–Winning Biologist Dies
Catherine Offord | Feb 19, 2018
Günter Blobel, known for his work on the signal hypothesis of protein targeting, has died from cancer at age 81.
Molecule Similar to Peptides Detected in Protostars
Kerry Grens | Jun 9, 2017
The dust surrounding emerging, Sun-like stars contains methyl isocyanate, an organic molecule.
Amyloid Designed to Inactivate Cancer-Related Protein
Kerry Grens | Nov 13, 2016
Researchers build a peptide that causes a receptor to form toxic, amyloid-like clumps in cells.
How to Track Translation in Living Cells
Ruth Williams | Oct 1, 2016
Four independent research groups develop techniques for visualizing peptide production in living cells.
Scientists Catch Translation in the Act
Ruth Williams | Sep 30, 2016
Newly developed techniques from four different groups rely on the same basic steps to track translation in live cells.
Tools for Drools
Kelly Rae Chi | Jul 1, 2015
A general guide to collecting and processing saliva
A Multi-Cancer Diagnostic?
Kate Yandell | Jul 14, 2014
Researchers report an ability to detect several types of cancer in blood samples based on signatures of immune response, but some are skeptical about the utility of such a test.
Centipede Venom Tops Morphine
Kerry Grens | Oct 1, 2013
The substance targets the same ion channel that's mutated in people who don't feel pain.
Celebrated Neuroscientist Dies
Kate Yandell | Sep 23, 2013
Candace Pert, who helped discover opioid receptors, has passed away at age 67.
Soybean Peptides Slow Some Cancer Cells
Dan Cossins | Mar 25, 2013
Researchers show that peptides isolated from certain types of soybean inhibit the growth of human colon, liver, and lung cancer cells.