Adaptation of the base-paired double-helix molecular architecture to extreme pressure.Girard, E., Prange, T., Dhaussy, A.C., Migianu-Griffoni, E., Lecouvey, M., Chervin, J.C., Mezouar, M., Kahn, R., Fourme, R.
(2007) Nucleic Acids Res 35: 4800-4808
- PubMed: 17617642
- DOI: 10.1093/nar/gkm511
- Primary Citation of Related Structures:
2PKV, 2PL4, 2PL8, 2PLB
- PubMed Abstract:
- Coexistence of A-and B-Form DNA in a Single Crystal Lattice
Doucet, J., Benoit, J.-P., Cruse, W.B.T., Prange, T., Kennard, O.
(1989) Nature 337: 190
- High-pressure protein crystallography (HPPX): Instrumentation, methodology and results on lysozyme crystals
Fourme, R., Kahn, R., Mezouar, M., Girard, E., Horentrup, C., Prange, T., Ascone, I.
(2001) J Synchrotron Radiat 8: 1149
- High pressure macromolecular crystallography: The 140 MPa crystal structure at 2.3 A resolution of urate oxidase, A 135 KD tetrameric assembly
Colloc'h, N., Girard, E., Dhaussy, A.C., Kahn, R., Ascone, I., Mezouar, M., Fourme, R.
(2006) Biochim Biophys Acta Proteins Proteom 1764: 391
The behaviour of the d(GGTATACC) oligonucleotide has been investigated by X-ray crystallography at 295 K in the range from ambient pressure to 2 GPa (approximately 20,000 atm). Four 3D-structures of the A-DNA form (at ambient pressure, 0.55, 1.09 and 1.39 GPa) were refined at 1 ...
The behaviour of the d(GGTATACC) oligonucleotide has been investigated by X-ray crystallography at 295 K in the range from ambient pressure to 2 GPa (approximately 20,000 atm). Four 3D-structures of the A-DNA form (at ambient pressure, 0.55, 1.09 and 1.39 GPa) were refined at 1.60 or 1.65 A resolution. In addition to the diffraction pattern of the A-form, the broad meridional streaks previously explained by occluded B-DNA octamers within the channels of the crystalline A-form matrix were observed up to at least 2 GPa. This work highlights an important property of nucleic acids, their capability to withstand very high pressures, while keeping in such conditions a nearly invariant geometry of base pairs that store and carry genetic information. The double-helix base-paired architecture behaves as a molecular spring, which makes it especially adapted to very harsh conditions. These features may have contributed to the emergence of a RNA World at prebiotic stage.
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