title: A novel, stable bioradical.
abstract: Several cellular systems have shown a novel EPR spectrum at 77 K, comprising a slightly anisotropic doublet centred on the free-spin g-value, with a hyperfine splitting of ca. 120 G. It is suggested that this species is an occluded protein radical centred on a tryptophan unit.
authors.affiliation: De Montfort University, Leicester, UK.
authors.forename: M C
authors.initials: MC
authors.lastname: Symons
mesh_terms: D003596:Cytosine / Q000737:chemistry; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D005609:Free Radicals / Q000737:chemistry*; D006147:Guanine / Q000737:chemistry; D006639:Histidine / Q000737:chemistry; D006801:Humans; D011506:Proteins / Q000737:chemistry; D014364:Tryptophan / Q000737:chemistry
chemical_list: D005609:Free Radicals; D011506:Proteins; D006639:Histidine; D006147:Guanine; D014364:Tryptophan; D003596:Cytosine