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Telomere structure and function in trypanosomes: a proposal

delete2006-12-11
delete60
PRE
AI
O
Oliver Dreesen
B
Bibo Li
G
George Cross *
DOI:10.1038/nrmicro1577delete
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Abstract

Abstract

En 中文
Telomeres are specialized DNA - protein complexes that stabilize chromosome ends, protecting them from nucleolytic degradation and illegitimate recombination. Telomeres form a heterochromatic structure that can suppress the transcription of adjacent genes. These structures might have additional roles in Trypanosoma brucei, as the major surface antigens of this parasite are expressed during its infectious stages from subtelomeric loci. We propose that the telomere protein complexes of trypanosomes and vertebrates are conserved and offer the hypothesis that growth and breakage of telomeric repeats has an important role in regulating parasite antigenic variation in trypanosomes.
Keywords:
D-GLUCOSYL-HYDROXYMETHYLURACIL
GENE-EXPRESSION SITES
DNA-DAMAGE RESPONSE
ANTIGENIC VARIATION
AFRICAN TRYPANOSOMES
HOMOLOGOUS RECOMBINATION
HUMAN-CHROMOSOMES
LENGTH REGULATION
T-LOOPS
BRUCEI
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Journal

N
Nature Reviews Microbiology
IF:
103.3
Papers:
3.5K
Citations:
6.1W

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