Editing Site-directed spin labeling (section)

'''Site-directed spin labeling''' (SDSL) is a technique for investigating the structure and local dynamics of [[protein]]s using [[electron spin resonance]]. The theory of SDSL is based on the specific reaction of [[spin label]]s with [[amino acid]]s. A spin label's built-in protein structure can be detected by [[Electron spin resonance|EPR]] spectroscopy.  SDSL is also a useful tool in examinations of the [[protein folding]] process.<ref>{{cite journal|last1=Oda|first1=Michael N|title=The C-terminal domain of apolipoprotein A-I contains a lipid-sensitive conformational trigger|journal=Nature Structural & Molecular Biology|date=2003|volume=10|issue=6|pages=455–60|doi=10.1038/nsb931|pmid=12754494|s2cid=25438936}}</ref>