Human urate oxidase gene: Cloning and partial sequence analysis reveal a stop codon within the fifth exon

Anjana V. Yeldandi*, Xuedong Wang, Keith Alvares, Sujata Kumar, M. Sambasiva Rao, Janardan K. Reddy

*Corresponding author for this work

Research output: Contribution to journalArticle

36 Scopus citations


Using the cDNA and selected genomic probes of rat urate oxidase, we have screened the human genomic library and isolated seven clones; one clone (clone 13) contained exonic regions which correspond to the exons 5, 6, and 7 of rat urate oxidase gene. The nucleotide sequence was determined for these three exons and exon/intron junctions, and compared with the sequence from the rat gene. A mutation resulting in a stop codon TGA was found in the fifth exon of the human urate oxidase gene. Sequence analysis of the polymerase chain reaction amplified DNA, corresponding to the fifth exon of urate oxidase from DNA samples from four different individuals, confirmed the same TGA stop codon in all. This single stop codon mutation and/or other mutation(s) in this gene may be responsible for the lack of urate oxidase activity in the human.

Original languageEnglish (US)
Pages (from-to)641-646
Number of pages6
JournalBiochemical and Biophysical Research Communications
Issue number2
StatePublished - Sep 14 1990


ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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