title: Time resolved SAXS and RNA folding.
abstract: Small angle X-ray scattering provides low resolution structural information about macromolecules in solution. When coupled with rapid mixing methods, SAXS reports time-dependent conformational changes of RNA induced by the addition of Mg(2+) to trigger folding. Thus time-resolved SAXS provides unique information about the global or overall structures of transient intermediates populated during folding. Notably, SAXS provides information about the earliest folding events, which can evade detection by other methods.
authors.affiliation: School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA. lp26@cornell.edu
authors.forename: Lois
authors.initials: L
authors.lastname: Pollack
mesh_terms: D018360:Crystallography, X-Ray; D008274:Magnesium / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D009690:Nucleic Acid Conformation; D012313:RNA / Q000737:chemistry*; D016337:RNA, Catalytic / Q000737:chemistry; D053838:Scattering, Small Angle; D012996:Solutions; D013768:Tetrahymena; D013997:Time Factors; D014961:X-Ray Diffraction / Q000379:methods*
chemical_list: D016337:RNA, Catalytic; D012996:Solutions; D012313:RNA; D008274:Magnesium