The secondary structure of E. coli ribosomes and ribosomal RNA's: a spectrophotometric approach.

Abstract:

:The thermal denaturation spectra of E. coli 50s and 30s ribosomal sub units and of their isolated RNA's were studied over the wavelength range of 2300-3000 Angstrom. It was possible to fit the experimental denaturation spectra with super positions of the reference spectra for denaturation of A - U and G - C base pairs derived from model polyribonucleotides. The coefficients of these linear combinations were used to calculate the fractions of A - U and G - C base pairs in the samples. It was found that the helical content of the RNA's inside the subunits is smaller than that of the isolated RNA's, thus suggesting that proteins may affect the secondary structure of RNA in the ribosome.

journal_name

Nucleic Acids Res

journal_title

Nucleic acids research

authors

Araco A,Belli M,Giorgi C,Onori G

doi

10.1093/nar/2.3.373

keywords:

subject

Has Abstract

pub_date

1975-03-01 00:00:00

pages

373-81

issue

3

eissn

0305-1048

issn

1362-4962

journal_volume

2

pub_type

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