Chloroplast DNA codes for the ribulose diphosphate carboxylase catalytic site on fraction I proteins of Nicotiana species

1973 ◽  
Vol 124 (3) ◽  
pp. 187-196 ◽  
Author(s):  
Shalini Singh ◽  
S. G. Wildman
1987 ◽  
Vol 73 (3) ◽  
pp. 330-336 ◽  
Author(s):  
Y. Kishima ◽  
T. Mikami ◽  
A. Hirai ◽  
M. Sugiura ◽  
T. Kinoshita

1976 ◽  
Vol 3 (8) ◽  
pp. 2005-2018 ◽  
Author(s):  
J. M. McCrea ◽  
C. L. Hershberger

Nature ◽  
1978 ◽  
Vol 274 (5672) ◽  
pp. 717-719 ◽  
Author(s):  
JAN MILLER McCREA ◽  
CHARLES L. HERSHBERGER
Keyword(s):  

1967 ◽  
Vol 22 (10) ◽  
pp. 1068-1076 ◽  
Author(s):  
Hans Georg Ruppel

The occurrence of nucleic acids in chloroplast preparations and leaves of Antirrhinum majus has been investigated.Chloroplast preparations isolated from freeze-dried leaves in a non-aqueous medium were found to contain DNA. Characterization of the DNA was based on chemical analyses and density gradient centrifugation. The chloroplast DNA has a density of 1.698 g/cm3 corresponding to a guaninecytosine content of 37 — 38%. The hyperchromic effect of the DNA has shown its double-stranded structure. Leaf DNA has also been characterized by density gradient centrifugation and shown to contain as major component the nuclear DNA with a density of 1.689 g/cm3 which corresponds to a guanine-cytosine content of about 31% and a minor component identified as chloroplast DNA.Extraction of the total nucleic acids of chloroplast preparations and their chromatographic separation on methylated serum albumin column yielded 5 fractions as follows: Soluble RNA (fraction I) with s=3.8—4.0, DNA (fraction II) containing small but detectable amounts of an unknown RNA component, two RNA fractions presumable of ribosomal origin with s = 17 (fraction III) and s = 26 (fraction IV), and a RNA fraction heterogeneous in molecular size (fraction V) with s=23 — 50. The soluble RNA has a high GC-content whereas fraction V shows a relative high adenine content. Compared with the nucleic acids from leaves the chloroplast preparations contain the same fractions, differing only in the higher content of fraction III related to the amount of fraction IV. Beside the DNA fraction of leaf extract with the sedimentation coefficient of s = 12 — 13 a further UV-absorbing component with s=5.0—5.5 has been found. Its character is unknown.


1969 ◽  
Vol 22 (2) ◽  
pp. 463 ◽  
Author(s):  
KE Moon ◽  
EOP Thompson

Fraction I protein isolated from spinach beet chloroplasts was purified by ammonium sulphate fractionation and Sephadex G�200 gel filtration. The isolated protein was reduced and S-carboxymethylated, and the dissociated protein resolved into two distinct subunits by gel filtration on Sephadex G-200 in an 8M urea buffer at pH 10�0.


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