1 Hydration Sphere Structure of Proteins: a Theoretical Study 1 Anikó Lábas 1 , Imre Bakó 2* and Julianna Oláh 1* 2 1 Department of Inorganic and Analytical Chemistry, Budapest University of Technology and 3 Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary 4 2 Institute of Organic Chemistry Research Centre for Natural Sciences, Hungarian Academy of 5 Sciences Magyar tudósok körútja 2. H-1519 Budapest, P.O. Box 286, Hungary 6 7 8 9 * corresponding author, to whom corresponding should be addressed e-mail: julianna.olah@mail.bme.hu; telephone number: +36-1-463-1286 e-mail: bako.imre@ttk.mta.hu; telephone number: +36-1-382-69-81