Trinity College 4 articles published in JoVE Biochemistry Measuring Nucleotide Binding to Intact, Functional Membrane Proteins in Real Time Samuel G. Usher1, Frances M. Ashcroft1, Michael C. Puljung1,2 1Department of Physiology, Anatomy and Genetics, University of Oxford, 2Department of Chemistry and Neuroscience Program, Trinity College This protocol presents a method for measuring adenine nucleotide binding to receptors in real time in a cellular environment. Binding is measured as Förster resonance energy transfer (FRET) between trinitrophenyl nucleotide derivatives and protein labeled with a non-canonical, fluorescent amino acid. Chemistry Separation of Aldehydes and Reactive Ketones from Mixtures Using a Bisulfite Extraction Protocol Maxwell H. Furigay1, Maria M. Boucher1, Nikola A. Mizgier1, Cheyenne S. Brindle1 1Department of Chemistry, Trinity College Here, we present a protocol to remove aldehydes and reactive ketones from mixtures by a liquid-liquid extraction protocol directly with saturated sodium bisulfite in a miscible solvent. This combined protocol is rapid and facile to perform. The aldehyde or ketone can be re-isolated by the basification of the aqueous layer. Behavior Inchworming: A Novel Motor Stereotypy in the BTBR T+ Itpr3tf/J Mouse Model of Autism Jacklyn D. Smith1, Jong M. Rho1, Susan A. Masino2, Richelle Mychasiuk1 1Departments of Paediatrics and Clinical Neurosciences, Alberta Children's Hospital Research Institute, University of Calgary Faculty of Medicine, 2Department of Psychology, Neuroscience Program, Trinity College Inchworming is a highly repetitive synchronous digging motion displayed by BTBR T+ Itpr3tf/J (BTBR) mice when placed in a testing cage with sufficient sawdust bedding. The procedure is a modification of the juvenile social interaction protocol and is used here to assess repetitive motor stereotypies relevant to Autism Spectrum Disorder. Behavior Long-term Potentiation of Perforant Pathway-dentate Gyrus Synapse in Freely Behaving Mice J. Harry Blaise1 1Department of Engineering and Neuroscience Program, Trinity College Transgenic and knockout mouse models of neurological diseases are useful for studying the role of genes in normal and abnormal neurophysiology. This article describes methodologies which can be used to study long-term potentiation, a cellular mechanism which may underlie learning and memory, in transgenic and knockout freely behaving mouse models of neuropathology.