Identification of hundreds of conserved and nonconserved human microRNAs.
Nat Genet
; 37(7): 766-70, 2005 Jul.
Article
em En
| MEDLINE
| ID: mdl-15965474
ABSTRACT
MicroRNAs are noncoding RNAs of approximately 22 nucleotides that suppress translation of target genes by binding to their mRNA and thus have a central role in gene regulation in health and disease. To date, 222 human microRNAs have been identified, 86 by random cloning and sequencing, 43 by computational approaches and the rest as putative microRNAs homologous to microRNAs in other species. To prove our hypothesis that the total number of microRNAs may be much larger and that several have emerged only in primates, we developed an integrative approach combining bioinformatic predictions with microarray analysis and sequence-directed cloning. Here we report the use of this approach to clone and sequence 89 new human microRNAs (nearly doubling the current number of sequenced human microRNAs), 53 of which are not conserved beyond primates. These findings suggest that the total number of human microRNAs is at least 800.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Genoma Humano
/
MicroRNAs
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Nat Genet
Assunto da revista:
GENETICA MEDICA
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Israel