Navigation Links


diffraction at biology news

Researchers make gains in understanding antibiotic resistance

...he proteins is deduced by analyzing the pattern of diffraction of the x-rays. Steitz's group used ribosomal subunits from the primitive archaebacterium Haloarcula marismortui (Hma), which is found in the Dead Sea. They chose Hma ribosomes for their studies because they crystallize well enough to yield high-reso...

The making and breaking of microtubules

...hem down and crystallize single subunits for x-ray diffraction analysis. X?ray diffraction might allow higher resolution, but it would lose all information concerning contacts between the sub...

Scientists take aim at virulent bacteria by decoding machinery of key control enzyme

...ose their disease-causing potency. Using the X-ray diffraction facility at the Argonne National Laboratory in Chicago, Xiaodong Cheng, PhD, professor of biochemistry at Emory University School of Medicine and Georgia Research Alliance Eminent Scholar, and John Horton, PhD, Research Assistant Professor, have now ...

New law for resolution allows unprecedented sharpness in fluorescence microscopy

...oming the law postulated by Ernst Abbe in 1873 for diffraction limited resolution in light microscopes. Stefan He..., a physically consistent concept for breaking the diffraction limited resolution limit in fluorescence microscopy, and then verified it in experiments. Unlike in ...

Learning how SARS spikes its quarry

...ected through crystals of a protein. The resulting diffraction pattern is analyzed to deduce the atomic structure of the protein or protein complex under study. The x-ray structure revealed that the spike protein fragment showed a slightly concave surface that fits a complementary surface on the receptor, said...

Metal-containing compounds show promise as HIV weapon

...y were studying to the proteases, then brought the diffraction data to UT Southwestern to have the structures interpreted. The structures were determined by a process called X-ray crystallography, in which the crystals are bombarded with X-rays, and then the patterns made when the component atoms deflect the ray...

Zooming in on the protein-conducting channel

...y are diffracted. Researchers can then analyze the diffraction pattern to determine the atomic structure of the protein. The analysis by Frank and his colleagues revealed that each channel consists of two PCC subunits joined in a clamshell arrangement. The cryo-EM data also revealed two different arrangements o...

Molecular research suggest shift needed in how some drugs are created

...IRAK-4 that have been coaxed to form crystals. The diffraction data from the experiments allow the structure to be visualized down to angstrom-level resolution (one hundred-millionth of a centimeter). The structure of IRAK-4 was determined to a resolution of 1.7 angstroms. The molecules in question are part of ...

Key heart and Alzheimer's disease protein imaged for first time in native state

...nal structure of a molecule by analyzing the x-ray diffraction patterns of crystals that make up the molecule. "The next step is higher resolution, going from the current 10 angstroms to 3.5 or better," adds Weisgraber, who is also a professor of pathology at the University of California, San Francisco. Lip...

High-resolution light microscope reveals the fundamental mechanisms of nerve communication

...parate nanoscale structures was lacking due to the diffraction barrier. In recent years researchers in the department of NanoBiophotonics at the MPI for Biophysical Chemistryin Göttingen have been able to break the Abbe resolution limit of far-field optical microscopy, as applied to fluorescent imaging, using a...

Corals switch skeleton material as seawater changes

...r, Ries removed the coral skeletons and used X-ray diffraction to analyze their mineral composition. He was surprised to find that corals grown in the artificial seawater with a magnesium-to-calcium ratio less than 2-to-1 began producing a large portion of their skeleton with the calcite mineral, while those gro...

Biologists probe the machinery of cellular protein factories

... through the crystals, and analyzing the resulting diffraction pattern. Trakhanov prepared the crystals and Korostelev and Laurberg performed the crystallography and solved the structure, Noller said. ...

Bones at the nanoscale

...tress using the techniques of X-ray scattering and diffraction in real time. The high brilliance of the X-ray source enabled the tracking of bone deformation in real time. Researchers could look at two length scales: on one side they observed the 100 nanometers sized fibres, and on the other, the crystallite...

RNA enzyme structure offers a glimpse into the origins of life

...s through the crystals and analyzing the resulting diffraction patterns--Robertson and Scott were then able to determine the three-dimensional structure of the ribozyme. The ribozyme has three stems that radiate from a central hub. The active site where ligation occurs is located on one stem, and the structur...

Scientists identify molecular cause for one form of deafness

...nd posted on its Web site. High-resolution X-ray diffraction experiments, performed by Purdy at the Advanced Photon Source and at the Stanford Synchrotron Radiation Laboratory, allowed the researchers to solve the structure of various espin-actin bundles. "As the ability of espin to cross-link F-actin is dec...
Other Contentsumbilicusunconsciousnessunconsciousnesstesticletesticleundescendedpregnancypregnancypregnancypregnancypregnancypregnancypregnancyunintendedunintendedunintendedungualanginaanginaangina
(Date:8/20/2008)...atments which contain codeine may be risky for som... at The University of Western Ontario, and the Hos...ad author Dr. Gideon Koren published research in t... which suggests that the codeine used in some pain...atal results for infants when ingested by some bre...
(Date:8/20/2008)...pular theories to the contrary, early humans evolv...predators. , "Humans are no more born to be hunt...n, Ph.D., professor of anthropology at Washington ...ion of the controversial book "Man the Hunted: Pri...t cover book, released in July by Westview Press, ...
(Date:8/20/2008)... Addiction and Mental Health (CAMH) is proud to an... Canada Foundation for Innovation (CFI) into resea...on, treatment and prevention of mental illness and...his funding from the Large-Scale Institutional End...will allow CAMH to leverage our scientific strengt...
(Date:8/19/2008)...unravel gonadotrophs , Although the basic deve...wn, it has been harder to associate specific chang...imited cell population. In an article on p. 546 of...tion , Feng et al. take the approach of comparing ...s that were immortalized at different stages of de...
Breaking Biology News(10 mins):Codeine not safe for all breastfeeding moms and their babies 2New book further supports controversial theory of 'Man the Hunted' 2New book further supports controversial theory of 'Man the Hunted' 3New book further supports controversial theory of 'Man the Hunted' 4New book further supports controversial theory of 'Man the Hunted' 5Large-scale investment catapults CAMH's mental illness and addiction research forward 2September 2008 Biology of Reproduction highlights 2BIDMC Dyslexia Research Lab celebrates 25th anniversary 3904 1BIDMC Dyslexia Research Lab celebrates 25th anniversary 3904 2Shoe Insoles No Rx for Back Pain 3A Study 3903 1NDMA Launches Clinical Intelligence Platform 3898 1NDMA Launches Clinical Intelligence Platform 3898 2Panacea Pharmaceuticals Announces the Availability of BC Detect 28SM 29 a Serum Based Diagnostic Test for Breast Cancer 1309 1Panacea Pharmaceuticals Announces the Availability of BC Detect 28SM 29 a Serum Based Diagnostic Test for Breast Cancer 1309 2Panacea Pharmaceuticals Announces the Availability of BC Detect 28SM 29 a Serum Based Diagnostic Test for Breast Cancer 1309 3Panacea Pharmaceuticals Announces the Availability of BC Detect 28SM 29 a Serum Based Diagnostic Test for Breast Cancer 1309 4
(Date:8/20/2008)...r-old Contestant Wins Trip to Little League Baseba... The National Spit Tobacco Education,Program (NSTE...st today,and encouraged young baseball players to...ddiction and the health risks of using tobacco pro...year,s slogan contest winner is,Joe Reck, a nine-y...
(Date:8/20/2008)...cently enacted Medicare Improvement Law immediatel...re Advantage insurance companies .../PRNewswire/ -- When the House and Senate,overrode...gislation,protecting Medicare beneficiaries, they ...e Advantage plans during one of the busiest months...
(Date:8/20/2008)...T CREEK, Calif., Aug. 20 /PRNewswire-FirstCall/ --... reported preliminary income from,continuing opera...f $27.5,million, or $0.76 per diluted share, inclu...er diluted share, related to provisions for store,... a 6.8 percent increase,compared with income from ...
(Date:8/20/2008)...FIELD, Mich., Aug. 20 /PRNewswire/ -- WXYZ- TV/Cha...llness Promotion will give thousands of,Detroit me...ALTHY LIVING,FOR KIDS" program. This year the prog....m. to 5 p.m. at the Charles H. Wright Museum of A...77, "Healthy Living for Kids",has provided free im...
Breaking Medicine News(10 mins):Health News:Slogan Contest Educates Young Baseball Players About the Dangers of Tobacco Use 2Health News:Medicare Advantage Plans Struggle to Comply With New Federal Law 2Health News:Longs Drug Stores Corporation Reports Second Quarter Results 2Health News:Longs Drug Stores Corporation Reports Second Quarter Results 3Health News:Longs Drug Stores Corporation Reports Second Quarter Results 4Health News:Longs Drug Stores Corporation Reports Second Quarter Results 5Health News:Longs Drug Stores Corporation Reports Second Quarter Results 6Health News:Longs Drug Stores Corporation Reports Second Quarter Results 7Health News:Longs Drug Stores Corporation Reports Second Quarter Results 8Health News:Longs Drug Stores Corporation Reports Second Quarter Results 9Health News:Longs Drug Stores Corporation Reports Second Quarter Results 10Health News:Longs Drug Stores Corporation Reports Second Quarter Results 11Health News:Longs Drug Stores Corporation Reports Second Quarter Results 12Health News:Longs Drug Stores Corporation Reports Second Quarter Results 13Health News:WXYZ-TV/Channel 7 is 'On Your Side' With Healthy Living For Kids; Free Immunizations for Children on Sunday, August 24 at Charles H. Wright Museum of African American History 2Health News:WXYZ-TV/Channel 7 is 'On Your Side' With Healthy Living For Kids; Free Immunizations for Children on Sunday, August 24 at Charles H. Wright Museum of African American History 3
Other TagsDiffDiffDiffDiffDiffDiffMEGMEGMEGMEGMEGMEGMEGSupporSupporSupporSupporSupporSupporPiesPiesPiesLanLanLanLanLanLanLanLanOther Tagsspaces 2spaces 3enclosed 2rights 2rights 3rights 4rights 5rights 6rights 7rights 8rights 9rights 10ask 2ask 3ask 4ask 5ask 6ask 7ask 8ask 9ask 10uncover 2uncover 3uncover 4medicine 2medicine 3medicine 4medicine 5medicine 6medicine 7medicine 8medicine 9medicine 10journal 2journal 3journal 4journal 5journal 6journal 7journal 8journal 9journal 10highlighted 2leukemia 2leukemia 3leukemia 4