Certa U. Regular initiation of translation of Plasmodium berghei aldolase-2 after pre-mRNA splicing.
Mol Biochem Parasitol 1994;
63:291-7. [PMID:
8008025 DOI:
10.1016/0166-6851(94)90065-5]
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Abstract
In Plasmodium falciparum aldolase a UAG or a regular AUG codon has been proposed for the initiation of ribosomal protein synthesis. A UAG codon present at the beginning of the coding sequence of the aldolase 2 gene (aldo-2) of Plasmodium berghei is not recognised in vitro as an initiation codon, which suggests addition of a regular AUG codon by mRNA splicing. Sequence analysis of cDNA amplified by the reversed polymerase chain reaction reveals addition of an ATG codon with a splice donor consensus sequence to the aldo-2 exon. By the same technique and northern blot analysis, substantial amounts of partially spliced P. berghei aldo-2 precursor mRNA are detected which could explain the isolation of immature P. falciparum aldolase cDNA clones starting with a stop codon.
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