منابع مشابه
Schistosome satellite DNA encodes active hammerhead ribozymes.
Using a computer program designed to search for RNA structural motifs in sequence databases, we have found a hammerhead ribozyme domain encoded in the Smalpha repetitive DNA of Schistosoma mansoni. Transcripts of these repeats are expressed as long multimeric precursor RNAs that cleave in vitro and in vivo into unit-length fragments. This RNA domain is able to engage in both cis and trans cleav...
متن کاملIntronic hammerhead ribozymes are ultraconserved in the human genome.
Small ribozymes have been regarded as living fossils of a prebiotic RNA world that would have remained in the genomes of modern organisms. In this study, we report the ultraconserved occurrence of hammerhead ribozymes in Amniota genomes (reptiles, birds and mammals, including humans), similar to those described previously in amphibians and platyhelminth parasites. The ribozymes mapped to intron...
متن کاملIntronic hammerhead ribozymes in mRNA biogenesis
Small self-cleaving ribozymes are a group of natural RNAs that are capable of catalyzing their own and sequence-specific endonucleolytic cleavage. One of the most studied members is the hammerhead ribozyme (HHR), a catalytic RNA originally discovered in subviral plant pathogens but recently shown to reside in a myriad of genomes along the tree of life. In eukaryotes, most of the genomic HHRs se...
متن کاملتعیین ارزش غذایی برخی از ضایعات کشاورزی با استفاده از روشهای ,in vitro,in situ in vivo
چکیده ندارد.
15 صفحه اولIntronic hammerhead ribozymes in mRNA biogenesis
Small self-cleaving ribozymes are a group of natural RNAs that are capable of catalyzing their own and sequence-specific endonucleolytic cleavage. One of the most studied members is the hammerhead ribozyme (HHR), a catalytic RNA originally discovered in subviral plant pathogens but recently shown to reside in a myriad of genomes along the tree of life. In eukaryotes, most of the genomic HHRs se...
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ژورنال
عنوان ژورنال: RNA
سال: 2013
ISSN: 1355-8382
DOI: 10.1261/rna.040543.113