Paper
23 September 2011 Diverse nucleotide compositions and sequence fluctuation in Rubisco protein genes
Todd Holden, S. Dehipawala, E. Cheung, R. Bienaime, J. Ye, G. Tremberger Jr., P. Schneider, D. Lieberman, T. Cheung
Author Affiliations +
Abstract
The Rubisco protein-enzyme is arguably the most abundance protein on Earth. The biology dogma of transcription and translation necessitates the study of the Rubisco genes and Rubisco-like genes in various species. Stronger correlation of fractal dimension of the atomic number fluctuation along a DNA sequence with Shannon entropy has been observed in the studied Rubisco-like gene sequences, suggesting a more diverse evolutionary pressure and constraints in the Rubisco sequences. The strategy of using metal for structural stabilization appears to be an ancient mechanism, with data from the porphobilinogen deaminase gene in Capsaspora owczarzaki and Monosiga brevicollis. Using the chi-square distance probability, our analysis supports the conjecture that the more ancient Rubisco-like sequence in Microcystis aeruginosa would have experienced very different evolutionary pressure and bio-chemical constraint as compared to Bordetella bronchiseptica, the two microbes occupying either end of the correlation graph. Our exploratory study would indicate that high fractal dimension Rubisco sequence would support high carbon dioxide rate via the Michaelis- Menten coefficient; with implication for the control of the whooping cough pathogen Bordetella bronchiseptica, a microbe containing a high fractal dimension Rubisco-like sequence (2.07). Using the internal comparison of chi-square distance probability for 16S rRNA (~ E-22) versus radiation repair Rec-A gene (~ E-05) in high GC content Deinococcus radiodurans, our analysis supports the conjecture that high GC content microbes containing Rubisco-like sequence are likely to include an extra-terrestrial origin, relative to Deinococcus radiodurans. Similar photosynthesis process that could utilize host star radiation would not compete with radiation resistant process from the biology dogma perspective in environments such as Mars and exoplanets.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Todd Holden, S. Dehipawala, E. Cheung, R. Bienaime, J. Ye, G. Tremberger Jr., P. Schneider, D. Lieberman, and T. Cheung "Diverse nucleotide compositions and sequence fluctuation in Rubisco protein genes", Proc. SPIE 8152, Instruments, Methods, and Missions for Astrobiology XIV, 81520S (23 September 2011); https://doi.org/10.1117/12.893434
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KEYWORDS
Fractal analysis

Proteins

Microorganisms

Image information entropy

Sulfur

Biology

Photosynthesis

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