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Gene Review

rbcL  -  RuBisCO large subunit

Euglena gracilis

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High impact information on rbcL

  • Each of the nine introns in the approximately 6.5 kb rbcL locus is approximately 0.5 kb in length [1].
  • The conserved sequences of the Euglena rbcL introns may be indicative of a splicing mechanism similar to that of eucaryotic nuclear mRNA introns and group II mitochondrial introns [2].
  • Although the sister relationship between the green lineage and the Glaucophyta was not resolved in recent phylogenetic studies using amino acid substitutions from multiple plastid genes, it is consistent with the rbcL gene phylogeny and with a recent phylogenetic study using multiple nuclear genes [3].
  • Sequencing of rbcL of these organisms indicated that Lys-305 was changed into arginine with Lys-21 conserved [4].
  • Heterologous probes from spinach and Euglena containing psbA, rbcL, atpA or rrnA structural genes were also hybridized with such single and double restriction enzyme digests and mapped on this circular chloroplast genome [5].

Associations of rbcL with chemical compounds

  • The four introns have conserved boundary sequences of the type previously described in the Euglena chloroplast gene (rbcL) for the large subunit of ribulose-1,5-bisphosphate carboxylase (Koller et al., Cell 36, 545-553, 1984) [6].

Analytical, diagnostic and therapeutic context of rbcL


  1. Nine introns with conserved boundary sequences in the Euglena gracilis chloroplast ribulose-1,5-bisphosphate carboxylase gene. Koller, B., Gingrich, J.C., Stiegler, G.L., Farley, M.A., Delius, H., Hallick, R.B. Cell (1984) [Pubmed]
  2. The Euglena gracilis chloroplast ribulose-1,5-bisphosphate carboxylase gene. I. Complete DNA sequence and analysis of the nine intervening sequences. Gingrich, J.C., Hallick, R.B. J. Biol. Chem. (1985) [Pubmed]
  3. Phylogeny of plastids based on cladistic analysis of gene loss inferred from complete plastid genome sequences. Nozaki, H., Ohta, N., Matsuzaki, M., Misumi, O., Kuroiwa, T. J. Mol. Evol. (2003) [Pubmed]
  4. Distribution of fallover in the carboxylase reaction and fallover-inducible sites among ribulose 1,5-bisphosphate carboxylase/oxygenases of photosynthetic organisms. Uemura, K., Tokai, H., Higuchi, T., Murayama, H., Yamamoto, H., Enomoto, Y., Fujiwara, S., Hamada, J., Yokota, A. Plant Cell Physiol. (1998) [Pubmed]
  5. The chloroplast genome of Carthamus tinctorius. Ma, C., Smith, M.A. Mol. Cell. Biochem. (1985) [Pubmed]
  6. Chloroplast gene for Mr 32000 polypeptide of photosystem II in Euglena gracilis is interrupted by four introns with conserved boundary sequences. Karabin, G.D., Farley, M., Hallick, R.B. Nucleic Acids Res. (1984) [Pubmed]
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