Mutual disposition of short conformationally stanch oligopeptides in the 3D structure of globular proteins

Biophysics - Tập 54 - Trang 748-752 - 2010
A. V. Batyanovskii1, N. G. Esipova2, S. E. Shnoll3
1Moscow State University, Moscow, Russia
2Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
3Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia

Tóm tắt

The disposition of conformationally stanch, helix-prone tetrapeptides and of longer segments containing them in proteins of different structural and functional groups (PDBselect and CATH samples) has been analyzed. Quasirandom Monte Carlo experiments show that the disposition of such segments can be regarded as stochastic. At that, ∼60% of stanch peptides in the protein globules have at least one stanch neighbor within 5 Å.

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