Faculty of Biology, University of Latvia
Hard copy: ISSN 1691–8088
On-line: ISSN 2255–9582
Acta Univ Latv (2008) 745: 187–198
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Environmental and

Acta Univ Latv (2008) 745: 187–198

Orginal Article

An alternative model of the origin of genes: quantization of intron dimensions

Gunars Chipens, Nora Ieviņa*, Ivars Kalvinsh
Latvian Institute of Organic Synthesis, Aizkraukles 21, Rīga LV-1006, Latvia
*Corresponding author, E-mail: ievina@osi.lv


More than 30 years after the discovery of split genes the problem of intron origin is not yet completely solved. To study the possible germ of life on Earth we developed a quite different point of view – the third way of origin of genes – as an alternative to the Exon theory of genes and the Insertional theory of intron origin. In accordance to the elaborated model the precursors of primeval genes including segments of the future introns were formed by oligonucleotide multiplication and duplication reactions. The gene precursors without introns and primeval genes with the very first introns were regular periodic nucleic acids containing tandemly repeated identical in size and sequence oligonucleotides. Here we demonstrate several contemporary gene families whose members have retained regularity corresponding to oligonucleotide repeats. Regular segments of these gene structures – peculiar molecular relics – contain exons, introns and intron coordinates whose numerical parameters have identical internal regularity and can be quantized – expressed as multiples of identical size oligonucleotide repeat units. The term „gene quantum” in this case shows the number of nucleotides or base pairs in an oligonucleotide named a repeat unit.

Key words: albumin-fetoprotein gene family, globin gene family, regularity of gene structures, superfamily of carbonic anhydrases, tubulin α-1A.

Acta Univ Latv (2008) 745: 187–198
 DOI: http://doi.org/10.22364/eeb

Prof. Gederts Ievinsh
Published by
University of Latvia

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