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Tag: "helix" at medical news

This is Why DNA Has Its Famous Helix Shape

...he physical forces that give DNA its famous double helix shape . The study conducted by Piotr Marszalek,... between base units along the length of the double helix and on the pairing forces between complementary bases, which form the rungs of the twisted ladder. ...

New Small Vessel Neurovascular Retrievers for Use in Stroke Patients

... of retrievers, incorporating a 2.0 mm cylindrical helix with attached filaments. The filaments provide an additional mechanism for securing the clot during retrieval. The Merci K Mini Retriever further adds to the Concentric portfolio, introducing a unique non-filamented design with a 2.1 mm diameter. T...

Man-Made Proteins Could Be More Useful Than Real Ones

...features, too, were remarkably similar to a coiled helix bundle formed of á-amino acids. “What is interesting about the a-peptide bundle is its similarity to á-helical bundles when viewed from afar,” she said. “It has a massive hydrophobic core, parallel and antiparallel helices, and an array of polar s...

Fimbriae Help Bacteria Stick Around Inside the Body

... interlocking protein segments in a tightly coiled helix shape, like a seven-nanometer-wide Slinky toy. The researchers found that under force, the fimbriae stretch to many times their original length as the protein segments uncoil one by one. If the force on them drops, the fimbriae coils are compressed, ...

A Human Brain Gene Could Hold Clues On The Evolution Of Brain Capacity

...base pairing that holds together a double-stranded helix of DNA. UCSC researchers were able to demonstrate a stable structure for HAR1 RNA from humans and other vertebrates. Furthermore, 10 of the 18 changes in the human HAR1 sequence involved compensatory changes that preserved the base pairing in this st...

Streptococcus Bacterium Enzyme Identified

...astle University have found a triple stranded beta helix shaped enzyme which is responsible for the increased pathogenicity produced by Streptococcus bacterium. // Streptococcus is a gram positive bacterium which is the main cause of sore throat and is also responsible for causing Toxic shock syndrome, rhe...

Cell molecules behind neuro degenerative diseases

... beta helix. Moreover, the tendency to form a beta helix increases as glutamine tract length becomes longer. Source: Newswie...

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