Science Fair Project Encyclopedia
Spin label
A spin label (SL) is an organic molecule which possess an unpaired electron and the ability to bind another molecule. Spin labels are usually used as a tool for probing proteins or biological membranes local dynamics using EPR spectometry. The site-directed spin labeling (SDSL) technique allows to monitor a specific region within the protein. Spin labels have usually an unpaired spin on nitrogen atom. In protein structure examinations aminoacid specific SL can be used.
03-10-2013 05:06:04
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details