Skip to main content
Log in

Copper-induced expression, cloning, and regulatory studies of the plastocyanin gene from the cyanobacterium Synechocystis sp. PCC 6803

  • Published:
Plant Molecular Biology Aims and scope Submit manuscript

Abstract

Plastocyanin can be detected in Synechocystis sp. PCC 6803 when 3 μM copper is added to the growth medium, BG-11. The plastocyanin gene (petE) was cloned from a genomic λ EMBL 3 library by screening with the petE gene from Anabaena sp. PCC 7937. The Synechocystis 6803 petE gene is present as a single copy and, as deduced from the DNA sequence, encodes a precursor protein of 126 amino acids. The predicted 29 amino acid transit peptide shows substantial homology to the Anabaena 7937 transit peptide, thought to direct the plastocyanin precursor to the thylakoid lumen. Putative promoter sites −16 and −38 base pairs from the start of the petE gene have been identified. The deduced amino acid sequence has the greatest homology (61%) to the green alga Scenedemus obliquus plastocyanin. Despite the lower homology, the copper binding residues and certain aromatic residues remain highly conserved. Northern hybridization analysis indicates that the Synechocystis sp. PCC 6803 petE gene is not transcriptionally regulated since the accumulation of petE mRNA appears to be independent of the copper concentration in the growth media. The possibility of an additional polypeptide needed to facilitate the electron transfer from plastocyanin to P700+ is also discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Bengis C, Nelson N: Subunit structure of chloroplast photosystem I reaction center. J Biol Chem 252: 4564–4569 (1977).

    PubMed  Google Scholar 

  2. Beoku-Betts D, Chapman SK, Knox CV, Sykes AG: Concerning the binding site on plastocyanin for its natural redox partner cytochrome f. J Chem Soc Chem Commun 767: 1150–1152 (1983).

    Article  Google Scholar 

  3. Blake MS, Johnston KH, Russell-Jones GJ, Gotschlich EC: A rapid, sensitive method for detection of alkaline phosphatase-conjugated anti-antibody on western blots. Anal Biochem 136: 175–179 (1984).

    PubMed  Google Scholar 

  4. Blattner FR, Williams BG, Blechl AE, Denniston-Thompson K, Farber HE, Furlong L, Grunwald DJ, Kiefer DO, Moore DD, Schumm JW, Sheldon EL, Smithies O: Charon phages: safer derivatives of bacteriophage lambda for DNA cloning. Science 196: 161–169 (1977).

    PubMed  Google Scholar 

  5. Cantrell A, Bryant DA: Molecular cloning and nucleotide sequence of the psaA and psaB genes of the cyanobacterium Synechococcus sp PCC 7002. Plant Mol Biol 9: 453–468 (1987).

    Google Scholar 

  6. Debus RJ, Barry BA, Babcock GT, McIntosh L: Site-directed mutagenesis identifies a tyrosine radical involved in the photosynthetic oxygen-evolving system. Proc Natl Acad Sci USA 85: 427–430 (1988).

    PubMed  Google Scholar 

  7. Devereux J, Haeberli P, Smithies O: A comprehensive set of sequence analysis programs for the VAX. Nucl Acids Res 12: 387–395 (1984).

    PubMed  Google Scholar 

  8. Farver O, Shahak Y, Pecht I: Electron uptake and delivery sites on plastocyanin in its reaction with the photosynthetic electron transport system. Biochemistry 21: 1885–1890 (1982).

    PubMed  Google Scholar 

  9. Feinberg AP, Vogelstein B: A technique for radiolabelling DNA restriction endonuclease fragments to high specific activity. Anal Biochem 132: 6–13 (1984).

    Google Scholar 

  10. Golden SS, Brusslan J, Haselkorn R: Genetic engineering of the cyanobacterial chromosome. Meth Enzymol 153: 215–231 (1987).

    PubMed  Google Scholar 

  11. Guss JM, Freeman HC: Structure of oxidized poplar plastocyanin at 1.6 Å resolution. J Mol Biol 169: 521–563 (1983).

    PubMed  Google Scholar 

  12. Ho KK, Krogman DW: Electron donors to P700 in cyanobacteria and alga: an instance of unusual genetic variability. Biochim Biophys Acta 766: 310–316 (1984).

    Google Scholar 

  13. Hutber GN, Hutson KG, Rogers LJ: Effects of iron deficiency on levels of two ferrodoxins and flavodoxin in Cyanobacterium. FEMS Microbiol Lett 1: 193–196 (1977).

    Article  Google Scholar 

  14. Kelly J, Ambler RP: The amino acid sequence of plastocyanin from Chlorella fusca. Biochem J 143: 681–690 (1974).

    PubMed  Google Scholar 

  15. Kwok KH, Ulrich EL, Krogman DW, Gomez-Lojero C: Isolation of photosynthetic catalysts from cyanobacteria. Biochim Biophys Acta 545: 237–249 (1979).

    Google Scholar 

  16. Lowry OH, Rosebrough NJ, Farr LA, Randall RJ: Protein measurement with the folin phenol reagent. J Biol Chem 193: 265–274 (1951).

    PubMed  Google Scholar 

  17. Maniatis T, Fritsch EF, Sambrook J: Molecular Cloning: A Laboratory Manual. Cold Spring Harbor Laboratory, Cold Spring Harbor (1982).

    Google Scholar 

  18. Maxam AM, Gilbert W: Sequencing end-labeled DNA with base-specific chemical cleavages. Meth Enzymol 65: 499–560 (1980).

    PubMed  Google Scholar 

  19. Merchant S, Bogorad L: Rapid degradation of apoplastocyanin in Cu(II) deficient cells of Chlamydomonas reinhardtii. J Biol Chem 261: 15850–15853 (1986).

    PubMed  Google Scholar 

  20. Merchant S, Bogorad L: Metal ion regulated gene expression: use of plastocyaninless mutant of Chlamydomonas reinhardtii to study the Cu(II) dependent expression of cytochrome c-552. EMBO J 6: 2531–2535 (1987).

    PubMed  Google Scholar 

  21. Moore JM, Chazin WJ, Powls R, Wright PE: 1H NMR studies of plastocyanin from Scenedesmus obliquus: complete sequence-specific assignment, secondary structure analysis, and global fold. Biochemistry 27: 7806–7816 (1988).

    PubMed  Google Scholar 

  22. Mordhay A, Shneyour A: On the site of action of plastocyanin in isolated chloroplasts. Biochim Biophys Acta 226: 498–500 (1971).

    PubMed  Google Scholar 

  23. Ramshaw JAM, Brown RH, Seawen MD, Boulter D: Higher plant plastocyanin. Biochim Biophys Acta 303: 269–273 (1972).

    Google Scholar 

  24. Rippka R, Deruelles J, Waterbury JB, Herdman M, Stanier RY: Generic assignments, strain histories and properties of pure cultures of cyanobacteria. J Gen Microbiol 111: 1–61 (1979).

    Google Scholar 

  25. Rother D, Jansen T, Tyagi A, Tittgen J, Hermann RG: Plastocyanin is encoded by an uninterrupted nuclear gene in spinach. Curr Genet 11: 171–176 (1986).

    PubMed  Google Scholar 

  26. Sandmann G: Formation of plastocyanin and cytochrome c553 in different species of blue-green algae. Arch Microbiol 145: 76–79 (1986).

    Google Scholar 

  27. Sanger F, Coulson AR, Barrel BG, Smith AJ, Roe BA: Cloning in single-stranded bacteriophage as an aid to rapid DNA sequencing. J Mol Biol 143: 161–178 (1980).

    PubMed  Google Scholar 

  28. Simpson RJ, Moritz RL, Nice EC, Grego B, Yoshizaki F, Sugimura Y, Freeman HC, Murata M: Complete amino-acid sequence of plastocyanin from a green alga, Enteromorpha prolifera. Eur J Biochem 137: 497–505 (1986).

    Google Scholar 

  29. Smeekens S, Bauerle C, Hageman J, Keegstra D, Weisbeek P: The role of the transit peptide in the routing of precursors toward different chloroplast compartments. Cell 46: 365–376 (1986).

    Article  PubMed  Google Scholar 

  30. Smeekens S, de Groot M, van Binsbergen J, Weisbeek P: Sequence of the precursor of the chloroplast thylakoid lumen protein plastocyanin. Nature 317: 456–458 (1985).

    Google Scholar 

  31. Smeekens S, Weisbeek P: Protein transport towards the thylakoid lumen: posttranslational translocation in tandem. Phtosynth Res 16: 177–186 (1988).

    Google Scholar 

  32. Southern EM: Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol 98: 503–517 (1975).

    PubMed  Google Scholar 

  33. Towbin H, Stahelin T, Gordon J: Electrophoretic transfer of proteins from polyacrylamide gels to nitrocellulose sheets. Proc Natl Acad Sci USA 76: 4350–4354 (1979).

    PubMed  Google Scholar 

  34. Vaitukaitis JL: Production of antisera with small doses of immunogen: multiple intradermal injections. Meth Enzymol 73: 46–52 (1981).

    PubMed  Google Scholar 

  35. Van der Plas J, Bovy A, Kruyt F, de Vrieze G, Dassne E, Klein B, Weisbeek P: The gene for the precursor of plastocyanin from the cyanobacterium Anabaena sp. PCC7937: isolation, sequence and regulation. Mol Microbiol 3: 275–284 (1989).

    PubMed  Google Scholar 

  36. Van der Plas J, de Groot R, Woortman M, Cremers J, Borrias M, van Arkel G, Weisbeek P: Genes encoding ferredoxins from Anabaena sp. PCC 7937 and Synechococcus sp PCC 7942: structure and regulation. Photosynth Res 18: 179–204 (1988).

    Google Scholar 

  37. Wessels JSC: Isolation of a chloroplast fragment with NADP+-photoreducing activity dependent of plastocyanin and independent of cytochrome f. Biochim Biophys Acta 126: 581–583 (1966).

    PubMed  Google Scholar 

  38. Williams JGK: Construction of specific mutations in photosystem II photosynthetic reaction center by genetic engineering methods in Synechocystis 6803. Meth Enzymol 167: 766–778 (1988).

    Google Scholar 

  39. Wynn RM, Malkin R: Interaction of plastocyanin with PS I: a chemical cross-linking study of the polypeptide that binds plastocyanin. Biochemistry 27: 5863–5869 (1988).

    PubMed  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Briggs, L.M., Pecoraro, V.L. & McIntosh, L. Copper-induced expression, cloning, and regulatory studies of the plastocyanin gene from the cyanobacterium Synechocystis sp. PCC 6803. Plant Mol Biol 15, 633–642 (1990). https://doi.org/10.1007/BF00017837

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00017837

Key words

Navigation