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. 1984 Oct 25;12(20):7721-39.
doi: 10.1093/nar/12.20.7721.

Structural analysis of the two tandemly repeated acid phosphatase genes in yeast

W Bajwa, B Meyhack, H Rudolph, A M Schweingruber, A Hinnen
Free PMC article

Structural analysis of the two tandemly repeated acid phosphatase genes in yeast

W Bajwa et al. Nucleic Acids Res. .
Free PMC article

Abstract

We have sequenced the genetically linked genes for repressible (PHO5) and and constitutive (PHO3) acid phosphatase from S. cerevisiae. Both genes are located on a 3.91 Kb BamHI and HpaI fragment, in the order (5') PHO5, PHO3 (3'). The mRNA transcripts have been analysed by S1-nuclease mapping. They show heterogenous initiation sites. Each of the PHO5 and PHO3 genes codes for 467 amino acids as deduced from the DNA sequence. The coding regions of the two genes show homology both at the nucleotide (82%) and the amino acid (87%) level. In the coding sequences, long stretches of homologous regions are flanked by small non-homologous regions. The nucleotide homology (65%) extends to some length into the 5' and 3' non-coding flanking sequences. Further upstream sequences are unrelated. The comparison of the NH2-terminal amino acid sequence deduced from the nucleotide sequence, with that of purified repressible acid phosphatase revealed the presence of a putative signal peptide.

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