Abstract
A clone harboring the 5' flanking region of a tobacco glycolate oxidase (GLO) gene was isolated from a λEMBL3-tobacco genomic DNA libarary. Primer extension analysis indicated two major transcripts with 76 and 81 bp 5' UTRs. An RT-PCR assay mapped the major mRNA transcription initiation site to thymine at position 81 upstream of the translation initiation codon. A putative TATA box spanning positions -56 to -50 upstream of the transcription initiation site was found. Promoter activity of the 5' flanking region (-3.0 kb to +82 bp) was demonstrated in tobacco plants transformed with a GLO-β- glucuronidase (GUS) chimeric gene. Furthermore, in these transgenic plants, GUS expression patterns mimicked the expression patterns of the endogenous GLO.
Original language | English |
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Pages (from-to) | 105-110 |
Number of pages | 6 |
Journal | Biochimica et Biophysica Acta - Gene Structure and Expression |
Volume | 1399 |
Issue number | 1 |
DOIs | |
State | Published - 30 Jul 1998 |
Keywords
- Glycolate oxidase
- Light- dependent expression
- Promoter
- Transcription initiation site
- Transgenic plant
ASJC Scopus subject areas
- Structural Biology
- Biophysics
- Biochemistry
- Genetics