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Science 2 August 1968:
Vol. 161. no. 3840, pp. 482 - 484
DOI: 10.1126/science.161.3840.482
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Articles

Molecular Diversity of the Ribulose-1,5-Diphosphate Carboxylase from Photosynthetic Microorganisms

Louise E. Anderson 1, G. B. Price 1, and R. C. Fuller 1

1 Biology Division, Oak Ridge National Laboratory, and University of Tennessee-Oak Ridge Graduate School of Biomedical Sciences, Oak Ridge, Tennessee 37830

The ribulose-1,5-diphosphate carboxylases from green and blue-green algae and the purple sulfur photosynthetic bacterium Chromatium are proteins with high molecular weights and with sedimentation coefficients of 18 to 21 Svedberg units. The carboxylases of the Athiorhodaceae are smaller, that of Rhodospirillum rubrum being a 6.2S molecule, and those of the two species of Rhodopseudomonas are 12S and 14.5S.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)