title: Heterologous expression of a deuterated membrane-integrated receptor and partial deuteration in methylotrophic yeasts.
abstract: Methylotrophic yeast has previously been shown to be an excellent system for the cost-effective production of perdeuterated biomass and for the heterologous expression of membrane receptors. A protocol for the expression of 85% deuterated, functional human mu-opiate receptor was established. For partially deuterated biomass, deuteration level and distribution were determined for fatty acids, amino acids and carbohydrates. It was shown that prior to biosynthesis of lipids and amino acids (and of carbohydrates, to a lower extent), exchange occurs between water and methanol hydrogen atoms, so that 80%-90% randomly deuterated biomass and over-expressed proteins may be obtained using only deuterated water.
authors.affiliation: IPBS-CNRS, Toulouse, France.
authors.forename: S
authors.initials: S
authors.lastname: Massou
authors.forename: V
authors.initials: V
authors.lastname: Puech
authors.forename: F
authors.initials: F
authors.lastname: Talmont
authors.forename: P
authors.initials: P
authors.lastname: Demange
authors.forename: N D
authors.initials: ND
authors.lastname: Lindley
authors.forename: M
authors.initials: M
authors.lastname: Tropis
authors.forename: A
authors.initials: A
authors.lastname: Milon
mesh_terms: D018533:Biomass; D003903:Deuterium; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D007553:Isotope Labeling / Q000379:methods*; D000432:Methanol / Q000378:metabolism*; D019906:Nuclear Magnetic Resonance, Biomolecular; D010843:Pichia / Q000235:genetics / Q000378:metabolism*; D017450:Receptors, Opioid, mu / Q000235:genetics / Q000302:isolation & purification*; D011994:Recombinant Proteins / Q000302:isolation & purification
chemical_list: D017450:Receptors, Opioid, mu; D011994:Recombinant Proteins; D003903:Deuterium; D000432:Methanol