Telomeres, as physical ends of linear chromosomes, are targets of a number of specific proteins, including primarily telomerase reverse transcriptase. Access of proteins to the telomere may be affected by a number of diverse factors, e.g., protein interaction partners, local DNA or chromatin structures, subcellular localization/trafficking, or simply protein modification. Knowledge of composition of the functional nucleoprotein complex of plant telomeres is only fragmentary. Moreover, the plant telomeric repeat binding proteins that were characterized recently appear to also be involved in non-telomeric processes, e.g., ribosome biogenesis. This interesting finding was not totally unexpected since non-telomeric functions of yeast or animal telomeric proteins, as well as of telomerase subunits, have been reported for almost a decade. Here we summarize known facts about the architecture of plant telomeres and compare them with the well-described composition of telomeres in other organisms.

Laboratory of Functional Genomics and Proteomics National Centre for Biomolecular Research Faculty of Science Masaryk University Brno Czech Republic

Mendel Centre for Plant Genomics and Proteomics Central European Institute of Technology Masaryk UniversityBrno Czech Republic; Laboratory of Functional Genomics and Proteomics National Centre for Biomolecular Research Faculty of Science Masaryk UniversityBrno Czech Republic

Mendel Centre for Plant Genomics and Proteomics Central European Institute of Technology Masaryk UniversityBrno Czech Republic; Laboratory of Functional Genomics and Proteomics National Centre for Biomolecular Research Faculty of Science Masaryk UniversityBrno Czech Republic; Institute of Biophysics Academy of Sciences of the Czech Republic v v i Brno Czech Republic

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Identification of the Sequence and the Length of Telomere DNA

Telomeres and Their Neighbors

Insights into the Karyotype Evolution of Charinidae, the Early-Diverging Clade of Whip Spiders (Arachnida: Amblypygi)

Composition and Function of Telomerase-A Polymerase Associated with the Origin of Eukaryotes

Telomeres in Plants and Humans: Not So Different, Not So Similar

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