Understanding structure-function relationships in the Aequorea victoria green fluorescent protein.

Publisher Summary Learning the physiological role of green fluorescent protein (GFP) and its interaction with aequorin could help understand how to create mutants that exhibit efficiency energy transfer and how to effectively control dimerization. The interaction of GFP with aequorin is readily reversible and is stabilized by high protein and salt concentrations—conditions likely to be encountered within the light-emitting organelles of Aequorea victoria. Both GFP and aequorin can dimerize under appropriate conditions, and it is the dimerized forms that are believed to interact. The molecular details of the interaction of aequorin with GFP are unknown, although it has been suggested that a C-terminal hydrophobic patch, deriving from amino acids 206,221, and 223, or a stretch of negative electrostatic potential could be plausible interaction domains. Although the significance of the heterogeneity of both GFP and aequorin has largely been ignored, it is possible that it favors the correct association of GFP with aequorin. At least one site of heterogeneity in the Aequorea-derived GFP nucleotide residues occurs at a position involved in GFP Dimerization. Isoform variation at this position was split between positively and negatively charged amino acids, which would favor the selective association of different isoforms.

[1]  S J Remington,et al.  Crystal structure and photodynamic behavior of the blue emission variant Y66H/Y145F of green fluorescent protein. , 1997, Biochemistry.

[2]  M. Chalfie,et al.  Green fluorescent protein as a marker for gene expression. , 1994, Science.

[3]  O. Shimomura,et al.  Intermolecular energy transfer in the bioluminescent system of Aequorea. , 1974, Biochemistry.

[4]  Tobias Meyer,et al.  Spatial dynamics of GFP-tagged proteins investigated by local fluorescence enhancement , 1996, Nature Biotechnology.

[5]  H. Taguchi,et al.  Chaperonin-mediated Folding of Green Fluorescent Protein* , 1997, The Journal of Biological Chemistry.

[6]  M. J. Cormier,et al.  Amino acid sequence of the calcium-dependent photoprotein aequorin. , 1985, Biochemistry.

[7]  W. Ward,et al.  Reversible denaturation of Aequorea green-fluorescent protein: physical separation and characterization of the renatured protein. , 1982, Biochemistry.

[8]  S J Remington,et al.  Structural basis for dual excitation and photoisomerization of the Aequorea victoria green fluorescent protein. , 1997, Proceedings of the National Academy of Sciences of the United States of America.

[9]  A. Verkman,et al.  Photobleaching recovery and anisotropy decay of green fluorescent protein GFP-S65T in solution and cells: cytoplasmic viscosity probed by green fluorescent protein translational and rotational diffusion. , 1997, Biophysical journal.

[10]  R Y Tsien,et al.  Understanding, improving and using green fluorescent proteins. , 1995, Trends in biochemical sciences.

[11]  W. Stemmer,et al.  Improved Green Fluorescent Protein by Molecular Evolution Using DNA Shuffling , 1996, Nature Biotechnology.

[12]  Roger Y. Tsien,et al.  Crystal Structure of the Aequorea victoria Green Fluorescent Protein , 1996, Science.

[13]  S. Inouye,et al.  Chemical nature of the light emitter of the Aequorea green fluorescent protein. , 1996, Proceedings of the National Academy of Sciences of the United States of America.

[14]  William W. Ward,et al.  SPECTRAL PERTURBATIONS OF THE AEQUOREA GREEN‐FLUORESCENT PROTEIN , 1982 .

[15]  Jim Haseloff,et al.  Mutations that suppress the thermosensitivity of green fluorescent protein , 1996, Current Biology.

[16]  G. Patterson,et al.  Use of the green fluorescent protein and its mutants in quantitative fluorescence microscopy. , 1997, Biophysical journal.

[17]  J. W. Hastings,et al.  BIOLUMINESCENCE AND CHEMILUMINESCENCE , 1976, Photochemistry and photobiology.

[18]  Roger Y. Tsien,et al.  Double labelling of subcellular structures with organelle-targeted GFP mutants in vivo , 1996, Current Biology.

[19]  K. Mann,et al.  Chemical and physical properties of aequorin and the green fluorescent protein isolated from Aequorea forskålea. , 1978, Biochemistry.

[20]  M. J. Cormier,et al.  Sequence comparisons of complementary DNAs encoding aequorin isotypes. , 1987, Biochemistry.

[21]  R. Tsien,et al.  On/off blinking and switching behaviour of single molecules of green fluorescent protein , 1997, Nature.

[22]  A. Persechini,et al.  Detection in Living Cells of Ca2+-dependent Changes in the Fluorescence Emission of an Indicator Composed of Two Green Fluorescent Protein Variants Linked by a Calmodulin-binding Sequence , 1997, The Journal of Biological Chemistry.

[23]  S. Boxer,et al.  Ultra-fast excited state dynamics in green fluorescent protein: multiple states and proton transfer. , 1996, Proceedings of the National Academy of Sciences of the United States of America.

[24]  Roger Y. Tsien,et al.  Improved green fluorescence , 1995, Nature.

[25]  R Y Tsien,et al.  Wavelength mutations and posttranslational autoxidation of green fluorescent protein. , 1994, Proceedings of the National Academy of Sciences of the United States of America.

[26]  B. Reid,et al.  Chromophore formation in green fluorescent protein. , 1997, Biochemistry.

[27]  J. Haseloff,et al.  Molecular Characterization of Recombinant Green Fluorescent Protein by Fluorescence Correlation Microscopy , 1995 .

[28]  W. M. Westler,et al.  Chemical structure of the hexapeptide chromophore of the Aequorea green-fluorescent protein. , 1993, Biochemistry.

[29]  G. Phillips,et al.  The molecular structure of green fluorescent protein , 1996, Nature Biotechnology.

[30]  W. Ward PROPERTIES OF THE COELENTERATE GREEN-FLUORESCENT PROTEINS , 1981 .

[31]  Douglas C. Youvan,et al.  Red-Shifted Excitation Mutants of the Green Fluorescent Protein , 1995, Bio/Technology.

[32]  R. Tsien,et al.  Engineering green fluorescent protein for improved brightness, longer wavelengths and fluorescence resonance energy transfer , 1996, Current Biology.

[33]  D. Prasher,et al.  Using GFP to see the light. , 1995, Trends in genetics : TIG.

[34]  Y. Kimata,et al.  A novel mutation which enhances the fluorescence of green fluorescent protein at high temperatures. , 1997, Biochemical and biophysical research communications.

[35]  D. O'Kane,et al.  Green‐fluorescent protein mutants with altered fluorescence excitation spectra , 1995, FEBS letters.