Nucleic Acids Research, 1982, Vol. 10, No. 23 7791-7808
© 1982
MOLECULAR BIOLOGY |
The primary structure of the Saccharomyces cerevisiae gene for 3-phosphogrycerate kinase
Department of Molecular Biology, Genentech, Inc. 460 Point San Bruno Boulevard, South San Francisco, CA 94080, USA
Received August 5, 1982. Revised October 26, 1982. Accepted October 26, 1982.
The DNA sequence of the gene for the yeast glycolytic enzyme, 3-phosphoglycerate kinase (PGK), has been obtained by sequencing part of a 3.1 kbp HindIII fragment obtained from the yeast genome. The structural gene sequence corresponds to a reading frame of 1251 bp coding for 416 amino acids with no intervening DNA sequences. The amino acid sequence is approximately 65 percent homologous with human and horse PGK protein sequences and is in general agreement with the published protein sequence for yeast PGK. As for other highly expressed structural genes in yeast, the coding sequence is hiqhly codon biased with 95 percent of the amino acids coded for by a select 25 codons (out of 61 possible). Besides structural DNA sequence, 291 bp of 5'-flanking sequence and 286 bp of 3'-flankinq sequence were determined. Transcription starts 36 nucleotides upstream from the translational start and stops 8693 nucleotides downstream from the translational stop. These results suggest a non-polyadenylated mRNA length of 1373 to 1380 nucleotides, which is consistent with the observed length of 1500 nucleotides for polyadenylated PGK mRNA. A sequence TATATATAAA is found at 145 nucleotides upstream from the translational start. This sequence resembles the TATAAA box that is possibly associated with RNA polymerase II binding.
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