Prediction of helix-turn-helix structure by Monte Carlo simulation.
نویسندگان
چکیده
منابع مشابه
Helix-turn-helix motifs in unsolvated peptides.
The conformations of unsolvated Ac-A14KG3A14K + 2H+ (Ac = acetyl, A = alanine, K = lysine, G = glycine) have been examined by ion mobility measurements and molecular dynamics simulations. This peptide was designed as a model helix-turn-helix motif. It was found to adopt three distinct geometries which were assigned to an extended helical conformation which is only stable at low temperatures (<2...
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INTRODUCTION......... . ...... ................. .. ................. . .... . . ................. ......... 933 NOTIONS ABOUT RECOGNITION..... ................ . . .............. . . ..... . ......... . . ..... 934 THE HTH MOTIF... ..... ....... ................. .. . ................ .... . . .... ........... . .. . ..... .. 936 STRUCTURES.... . . . ..... .. ......... . . ................ ......
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The way helix-turn-helix proteins recognize DNA is analysed by comparing their sequences, structures, and binding specificities. Individual recognition helices in these proteins bind to four DNA base pairs with the same geometry. However, pairs of recognition helices in the protein dimers can have different separations and orientations. These differences are used for discriminating between DNAs...
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Perception by each individual organism of its environment's parameters is a key factor for survival. In a constantly changing environment, the ability to assess nutrient sources and potentially stressful situations constitutes the main basis for ecological adaptability. Transcription regulators are key decision-making proteins that mediate the communication between environmental conditions and ...
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A small model polypeptide represented in atomic detail is folded using Monte Carlo dynamics. The polypeptide is designed to have a native conformation similar to the central part of the helix-turn-helix protein ROP. Starting from a β-strand conformation or two different loop conformations of the protein glutamine synthetase, six trajectories are generated using the so-called window move in dihe...
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ژورنال
عنوان ژورنال: Seibutsu Butsuri
سال: 1999
ISSN: 0582-4052,1347-4219
DOI: 10.2142/biophys.39.s130_1