Developmental and tissue-specific expression of U4 small nuclear RNA genes.
نویسندگان
چکیده
منابع مشابه
Developmental and tissue-specific expression of U4 small nuclear RNA genes.
U4 RNA is one of several small nuclear RNAs involved in the splicing of mRNA precursors. The domestic chicken has two genes per haploid genome that are capable of encoding U4 RNA. The U4X RNA gene (which encodes a sequence variant of U4 RNA that was unknown prior to the cloning of the gene) and the U4B RNA gene were both expressed in vivo in each of seven adult and three embryonic chicken tissu...
متن کاملPrecursors of U4 small nuclear RNA
The processing and ribonucleoprotein assembly of U4 small nuclear RNA has been investigated in HeLa cells. After a 45-min pulse label with [3H]uridine, a set of apparently cytoplasmic RNAs was observed migrating just behind the gel electrophoretic position of mature U4 RNA. These molecules were estimated to be one to at least seven nucleotides longer than mature U4 RNA. They reacted with Sm aut...
متن کاملTranscriptional signals of a U4 small nuclear RNA gene.
The signals controlling the expression of a chicken U4 small nuclear RNA (snRNA) gene have been studied by microinjection into Xenopus oocytes. At least two distinct regions in the 5'-flanking DNA contribute to U4B RNA gene expression. The proximal regulatory element, which is inactivated by a 5'-flanking DNA deletion to position -38, provides a basal level of U4B RNA synthesis. The distal regu...
متن کاملSchizosaccharomyces pombe U4 small nuclear RNA closely resembles vertebrate U4 and is required for growth.
The single-copy gene snu4, which encodes the small nuclear RNA (snRNA) U4, has been cloned and sequenced. Schizosaccharomyces pombe U4 is 128 nucleotides in length, similar in size to vertebrate U4 and shows substantial primary and secondary structure homology. The gene lacks sequences closely resembling vertebrate snRNA transcription signals, but has a TATA box at -33 to -30; TATA sequences fl...
متن کاملTissue-Specific RNA Expression Marks Distant-Acting Developmental Enhancers
Short non-coding transcripts can be transcribed from distant-acting transcriptional enhancer loci, but the prevalence of such enhancer RNAs (eRNAs) within the transcriptome, and the association of eRNA expression with tissue-specific enhancer activity in vivo remain poorly understood. Here, we investigated the expression dynamics of tissue-specific non-coding RNAs in embryonic mouse tissues via...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Molecular and Cellular Biology
سال: 1988
ISSN: 0270-7306,1098-5549
DOI: 10.1128/mcb.8.12.5566