Low Resolution Structure of RAR1-GST-Tag Fusion Protein in Solution

• Authors: M. Taube , A. Jarmołowski , M. Kozak
• Languages of publication: EN

Abstracts

EN

RAR1 is a protein required for resistance mediated by many R genes and function upstream of signaling pathways leading to H_{2}O_{2} accumulation. The structure and conformation of RAR1-GST-Tag fusion protein from barley (Hordeum vulgare) in solution was studied by the small angle scattering of synchrotron radiation. It was found that the dimer of RAR1-GST-Tag protein is characterized in solution by radius of gyration R_G = 6.19 nm and maximal intramolecular vector D_{max} = 23 nm. On the basis of the small angle scattering of synchrotron radiation SAXS data two bead models obtained by ab initio modeling are proposed. Both models show elongated conformations. We also concluded that molecules of fusion protein form dimers in solution via interaction of GST domains.

Keywords

EN

61.05.cf; 87.14.E-; 87.14.et

Discipline

• 87.14.E-: Proteins
• 61.05.cf: X-ray scattering (including small-angle scattering)
• 87.14.et: Generic models (lattice, HP, etc.)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 2
• Pages: 307-310

Dates

published

2010-02

Contributors

author

M. Taube

• Department of Macromolecular Physics, Faculty of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

author

A. Jarmołowski

• Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, A. Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland

author

M. Kozak

• Department of Macromolecular Physics, Faculty of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.117.307