title: [miRNA: a new regulator of gene expression].
abstract: Plant and animal genomes contain an abundance of small genes that produce RNAs of about 22 nucleotides in length, which was dubbed as microRNAs. These newly found endogenous RNAs may participate in a wide range of genetic regulatory pathways and play an important role in the development. This paper is focused on the finding of the microRNAs, its mechanism and function, as well as the methods of research.
authors.affiliation: Biology of Department, Capital Normal University, Beijing 100037, China. suansuandemeizi@sohu.com
authors.forename: Cheng-Mei
authors.initials: CM
authors.lastname: Li
authors.forename: Ji-Gang
authors.initials: JG
authors.lastname: Zheng
authors.forename: Gui-Sen
authors.initials: GS
authors.lastname: Du
mesh_terms: D000818:Animals; D017360:Arabidopsis / Q000235:genetics; D017173:Caenorhabditis elegans / Q000235:genetics*; D004330:Drosophila / Q000235:genetics; D005786:Gene Expression Regulation; D006801:Humans; D035683:MicroRNAs / Q000235:genetics* / Q000302:isolation & purification; D013768:Tetrahymena / Q000235:genetics
chemical_list: D035683:MicroRNAs; C474488:let-7 microRNA, C elegans; C452194:lin-4 microRNA, C elegans