title: Cloning of the KcURA3 gene and development of a transformation system for Kluyveromyces cicerisporus.
abstract: KcURA3 was cloned from Kluyveromyces cicerisporus CBS4857 by complementation of the ura3 mutation in Saccharomyces cerevisiae. KcURA3 encodes a 267-amino-acid protein with 80% sequence identity to that of S. cerevisiae. An ura3 mutant strain from K. cicerisporus CBS4857, named Y179U, was obtained by selection on 5-fluoroorotic acid plates. Sequence analysis of this mutated gene revealed that it contained a point mutation at nucleotide position +277. Two vectors, pUK1 and pUKD, bearing KcURA3 were constructed. Either the lithium acetate method or electroporation could be used to transform pUK1 and pUKD intoY179U. The transformation efficiency using electroporation was higher than that using the lithium acetate method.
authors.affiliation: Institute of Genetics, State Key Laboratory of Genetic Engineering, Fudan University, School of Life Sciences, 200433 Shanghai, PR China.
authors.forename: J
authors.initials: J
authors.lastname: Zhang
authors.forename: H
authors.initials: H
authors.lastname: Yuan
authors.forename: T
authors.initials: T
authors.lastname: Wen
authors.forename: F
authors.initials: F
authors.lastname: Xu
authors.forename: Y
authors.initials: Y
authors.lastname: Di
authors.forename: K
authors.initials: K
authors.lastname: Huo
authors.forename: Y-Y
authors.initials: YY
authors.lastname: Li
mesh_terms: D000085:Acetates; D003001:Cloning, Molecular; D018274:Electroporation / Q000379:methods; D005656:Fungal Proteins / Q000235:genetics* / Q000378:metabolism*; D007716:Kluyveromyces / Q000235:genetics* / Q000378:metabolism; D008094:Lithium; D008969:Molecular Sequence Data; D010957:Plasmids; D012441:Saccharomyces cerevisiae / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism; D017422:Sequence Analysis, DNA; D014170:Transformation, Genetic; D014498:Uracil / Q000378:metabolism
chemical_list: D000085:Acetates; D005656:Fungal Proteins; D014498:Uracil; D008094:Lithium