منابع مشابه
Comparison of nucleotide sequences in HeLa cell mRNA and hnRNA.
Nearest neighbour analysis of nucleotides in vertebrate DNA has revealed a marked deficiency in the frequency of occurrence of the sequence CpGp. By use of the fingerprinting technique of Sanger et al. (1965) to characterise the nucleotide sequences of HeLa cell hnRNA after T1 RNAase digestion, we have shown that this deficiency also occurs in hnRNA and that it appears to be a general transcrip...
متن کاملNucleotide sequences of two glutamine tRNAs from HeLa cells.
We reported previously that 4.5S RNAj, is associated with poly A RNAs of rodent cells (1). However, this molecule was not found in human, monkey, cat, mink, rabbit or chicken cells ^1) . In HeLa cells, several 4S RNAs are released from the poly A RNA fraction (1) . We determined the nudeotide sequence of one of the most abundant 4S RNA species in this fraction. Nudeotide sequence analysis was p...
متن کاملAdenovirus proteins associated with mRNA and hnRNA in infected HeLa cells.
The proteins that interact with cytoplasmic and nuclear polyadenylated RNA in adenovirus type 5 (Ad5) infection of HeLa cells were examined by UV-induced RNA-protein cross-linking in intact cells. The Ad5 100-kilodalton late nonvirion protein (100K protein) was cross-linked to both host and viral polyadenylated cytoplasmic RNA (mRNA). The cross-linking of the 100K protein to mRNA appears to cor...
متن کاملAcid ribonuclease from HeLa cell lysosomes.
An acid ribonuclease has been purified from HeLa cell lysosomes. The specific activity of the RNase in lysosomes is 8-fold higher than that in nuclei and 15-fold higher than that in the postlysosomal fraction. The purified enzyme showed no detectable DNase, phosphodiesterase, phosphatase, or alkaline RNase activity. The acid RNase binds to Con A-agarose and is inferred to be a glycoprotein. It ...
متن کاملDNA methylase from HeLa cell nuclei.
A DNA methylase has been purified 270-fold from HeLa cell nuclei by chromatography on DEAE-cellulose, phosphocellulose, and hydroxyapatite. The enzyme transfers methyl groups from S-adenosyl-L-methionine to cytosine residues in DNA. The sole product of the reaction has been identified as 5-methylcytosine. The enzyme is able to methylate homologous (HeLa) DNA, although to a lesser extent than he...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1973
ISSN: 0014-5793
DOI: 10.1016/0014-5793(73)80385-0