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Tag: "structures" at biology news

Brain activity related to processing faces is similar in people with, without autism

...RI. Unlike standard MRI scans that show anatomical structures in black and white, fMRI offers digitally enhanced color images of brain function, depicting localized changes in blood flow and oxygenation. When particular regions of the brain increase their neural activity in association with various actions or...

Scientists map one of biology's critical light-sensing structures

...handful of proteins out of tens of thousands whose structures are known. The group speculates the knot may help stabilize the protein so it can do its job of capturing light and triggering the cascade of downstream events under its control. "We think that without the knot, the protein conformational changes (p...

Zooming in on the protein-conducting channel

...ement. However, said Frank, x-ray crystallographic structures often do not represent the arrangements of protein...?(NMFF) to model how well the two possible channel structures could explain the structural data from cryo-EM. The NMFF method was developed and applied by co-auth...

Mining biotech's data mother lode

...re includes a database of the 20,000 known protein structures and uses that database to identify which ones could potentially interact, among the thousands of proteins created by the over-expressing genes. Once interesting potential protein interactions are known, BioGrid's ontology-based search technology can ...

How Fruitflies Know It's Time for Lunch

...on. All together, these few hug neurons can signal structures controlling growth, feeding, and learning and memory. Besides linking hug neurons to brain centers that regulate taste-related feeding behavior, the study also raises questions about how the nervous system prioritizes internal and external signals. ...

Free-energy theory borne out in large-scale protein folding

...ugh the formation of partially folded intermediate structures before settling into their final state. Simulating large-scale protein folding is too complex for even the most powerful supercomputer. In developing a theoretical approach that allows studying protein folding on a computer, Clementi and Das relied ...

New understanding of regeneration gained by Forsyth scientists

... into human regeneration. The restoration of body structures following injury requires both an initiation of growth and an imposition of the correct morphology upon the regenerating tissue. Understanding this process is crucial for both the basic biology of pattern formation, and for developing novel biomedica...

Clocking in Pillow Time without the Pillow

... Pharmaceuticals), acts on AMPA receptors, protein structures on the surface of neurons. When these receptors bind to the neurotransmitter glutamate, they transduce excitatory signals by opening an ion channel. Ampakines including CX717 make the activated channel stay open longer when glutamate binds. More ions...

Noise And Delays Explain Why Some Genes Oscillate In Activity

... Pharmaceuticals), acts on AMPA receptors, protein structures on the surface of neurons. When these receptors bind to the neurotransmitter glutamate, they transduce excitatory signals by opening an ion channel. Ampakines including CX717 make the activated channel stay open longer when glutamate binds. More ions...

Many needles, many haystacks

...een below the radar of most methods to tie protein structures to disease." ...

Switching to new anti-bacterial targets: Riboswitches

...k, in combination with the recently solved crystal structures of purine riboswitches, opens a path to the directed design of drugs targeting riboswitches for use as antibiotics. According to the researchers, it is inevitable that bacteria will evolve and that the drugs we use to cure bacterial infections will ...

Olfactory system detects pheromones that control reproduction

...neurons from the main olfactory epithelium and the structures that comprise the primary olfactory complex," said Dulac. "This major route was never suspected. In addition, we were quite surprised when we realized we could not identify any connections with the vomeronasal system, which led us to attempt to confi...

Researchers make long DNA 'wires' for future medical and electronic devices

...o glass chips. Other labs have formed very simple structures with DNA, and those are now used in devices for ge...and Guan are the first to coax strands of DNA into structures that are at once so orderly and so complex that they resemble stitches on a quilt. "These are very ...

Chlamydia parasite lives off our fat

...tly lives on our fat. Lipid droplets are fat-rich structures found in all eukaryotic cells. In humans, lipid droplets are abundant in adipocytes, our professional fat storage cells, where they have traditionally been regarded as passive storage depots of excess fat. However, recent studies have reassessed the...

Nano springs eternal; Protozoan 'engine' posts nano records

...s and some family members are found in filamentous structures in organisms other than Vorticella, ranging from green algae to humans." In sorting out centrin's role in the Vorticella spring, France and colleagues found that an antibody to Vorticella centrin abolished contractility. Along with other evidence,...

Are U.S. Flu Death Figures More PR Than Science?

...s and some family members are found in filamentous structures in organisms other than Vorticella, ranging from green algae to humans." In sorting out centrin's role in the Vorticella spring, France and colleagues found that an antibody to Vorticella centrin abolished contractility. Along with other evidence,...

Similar Stem Cells In Insect And Human Gut

...s and some family members are found in filamentous structures in organisms other than Vorticella, ranging from green algae to humans." In sorting out centrin's role in the Vorticella spring, France and colleagues found that an antibody to Vorticella centrin abolished contractility. Along with other evidence,...

How the neuron sprouts its branches

...or Michael Ehlers and his colleagues reported that structures called "Golgi outposts" play a central role as dis... of growing dendrites. And we thought these remote structures we had discovered in dendrites called Golgi outposts might play a role." The researchers studied th...

New, unique microscope for nanotech

...al imaging of samples, such as cells, and picks up structures tagged with fluorescent dyes. Instead of cutting a..., biologists could use fluorescent tags to look at structures inside a cell and link them to very small changes on the cell membrane. Materials scientists could u...

Picking particles faster than one at a time

...ed and power of methods for determining biological structures at high resolution, based on data from electron mi...olds the promise of providing many high-resolution structures which may be difficult or impossible to obtain otherwise. Instead of trying to coax molecules to a...

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