| alpha. |
)-helix A rod-like structure within proteins, formed when the chain of amino acids forming the protein turns regularly around itself. Alpha-helices and beta ( )-sheets are major determinants of protein structure.
출처: www.bseinquiry.gov.uk/report/volume2/glossary.htm
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| alpha-tocopherol |
The most biologically active form of vitamin E.
출처: www.nutrilite.com/english/public/GeneralInfo/Gloss...
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| alpha particle |
A positive particle consisting of 2 protons and 2 neutrons. It is the nucleus of a helium atom.
출처: history.nasa.gov/EP-95/glossary.htm
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| alpha helix |
The alpha helix is the most abundant type of secondary structures in proteins. In brief, alpha helices are formed from stretches of consecutive amino acid residues with phi, psi angle pairs which correspond to the bottom left quadrant of the Ramachandran plot. The mean phi,psi angles for alpha helices found in proteins are -62 degrees and -41 degrees respectively. The alpha helix has 3.6 residues per turn, with a hydrogen bond between the CO of residue n and the NH of residue n +4. ...
출처: xray.bmc.uu.se/~kenth/bioinfo/glossary.html
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| alpha particle |
The nuclei of a helium atom (with two neutrons and two protons each) that are discharged by radioactive decay of many heavy elements, such as uranium-238 and plutonium-239.
출처: www.ndt.net/article/az/rt/rt.htm
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