Nucleotide sequence encoding the 5′ end of Xenopus laevis 18S rRNA
نویسندگان
چکیده
منابع مشابه
Nucleotide sequence of the region between the 18S rRNA sequence and the 28S rRNA sequence of rat ribosomal DNA.
The DNA sequence of the intragenic region of the rat 45S ribosomal RNA precursor was determined. This sequence contains 2282 nucleotides and extends from the conserved EcoR I site near the 3' terminus of 18S rRNA to 69 nucleotides downstream of the 5' terminus of 28S rRNA. The sequences corresponding to 18S and 5.8S rRNA were identified by comparison with previously published data. The 5' termi...
متن کاملMapping of the displacement loop within the nucleotide sequence of Xenopus laevis mitochondrial DNA.
The mtDNA of the African frog, Xenopus laevis, has a triple-stranded displacement loop (D-loop) structure at the origin of heavy strand DNA replication. The major species of displacing strands has a length of 1670 nucleotides, approximately 3 times the length of mouse or human D-loop mtDNA strands. We report experiments that precisely map the termini of the D-loop strand within a revised sequen...
متن کاملCorrection of the nucleotide and amino acid sequence of Xenopus laevis 42Sp50.
In previtellogenic (stage 1) Xenopus oocytes there is maximal synthesis and accumulation of 5S RNA and tRNA (1, 2). The 5S RNA and tRNA molecules synthesized during stage 1 are stabilized through their association with three very abundant proteins to form the 42S and 7S ribonucleoprotein particles (RNP). The 42S RNP is composed of the proteins p50 and p43 which are associated with tRNA and 5S R...
متن کاملBase pairing between U3 small nucleolar RNA and the 5' end of 18S rRNA is required for pre-rRNA processing.
The loop of a stem structure close to the 5' end of the 18S rRNA is complementary to the box A region of the U3 small nucleolar RNA (snoRNA). Substitution of the 18S loop nucleotides inhibited pre-rRNA cleavage at site A(1), the 5' end of the 18S rRNA, and at site A(2), located 1.9 kb away in internal transcribed spacer 1. This inhibition was largely suppressed by a compensatory mutation in U3,...
متن کاملNucleotide sequence of a hamster cDNA highly homologous to the Xenopus laevis S19 ribosomal protein
We have previously described (1) the isolation of a cDNA clone differentially expressed in Syrian hamster embryo fibroblast (HEF) and HSV-2 transformed HEF. Northern blot hybridization with this insert detected a message of 0.75 kb in all cell lines and tissues tested. We used this probe to screen a cDNA library with mRNA prepared from HSV-2 transformed HEF. We isolated a near full-length cDNA ...
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ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 1980
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/8.13.2871