منابع مشابه
Retroviruses and yeast retrotransposons use overlapping sets of host genes.
A collection of 4457 Saccharomyces cerevisiae mutants deleted for nonessential genes was screened for mutants with increased or decreased mobilization of the gypsylike retroelement Ty3. Of these, 64 exhibited increased and 66 decreased Ty3 transposition compared with the parental strain. Genes identified in this screen were grouped according to function by using GOnet software developed as part...
متن کاملTargeting Survival Integration Site Selection by Retroviruses and LTR-Retrotransposons
Replication of retroviruses and retrotransposons depends on selecting a favorable chromosomal site for integration of their genomic DNA. Different retroelements meet this challenge by targeting distinctive chromosomal regions. Despite these differences, recent data hints at a common targeting mechanism-tethering of integration complexes to proteins bound at favorable sites.
متن کاملConvergent Evolution of Ribonuclease H in LTR Retrotransposons and Retroviruses
Ty3/Gypsy long terminals repeat (LTR) retrotransposons are structurally and phylogenetically close to retroviruses. Two notable structural differences between these groups of genetic elements are 1) the presence in retroviruses of an additional envelope gene, env, which mediates infection, and 2) a specific dual ribonuclease H (RNH) domain encoded by the retroviral pol gene. However, similar to...
متن کاملRetrotransposons and retroviruses: analysis of the envelope gene.
Retroviruses and long terminal repeat (LTR) retrotransposons share a common structural organization. The main difference between these retroelements is the presence of a functional envelope (env) gene in retroviruses, which is absent or nonfunctional in LTR retrotransposons. Several similarities between these two groups of retroelements have been detected for the reverse transcriptase, gag, and...
متن کاملThe role of genes domesticated from LTR retrotransposons and retroviruses in mammals
The acquisition of multiple genes from long terminal repeat (LTR) retrotransposons occurred in mammals. Genes belonging to a sushi-ichi-related retrotransposon homologs (SIRH) family emerged around the time of the establishment of two viviparous mammalian groups, marsupials and eutherians. These genes encode proteins that are homologous to a retrotransposon Gag capsid protein and sometimes also...
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ژورنال
عنوان ژورنال: Genome Biology
سال: 2001
ISSN: 1474-760X
DOI: 10.1186/gb-2001-2-2-reports0006