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µÚ¶þ²¿·Ö µ°°×Öʽṹ½¨Ä£»ù´¡ 2.1½¨Ä£Ò»°ã¹ý³Ì¼ûÏÂͼ ![]() 2.2½á¹¹½¨Ä£·½·¨£º •´ÓÍ·½¨Ä£ •±È½Ï»òͬԴ½¨Ä£ •ÕÛµþʶ±ð»òÕß´©ÕëÒýÏߣ¨threading£©·½·¨ 2.3Á¦³¡¾ö¶¨·Ö×ÓÕÛµþ»úÀí Á¦³¡ÊÇÒ»ÖÖÃèÊö·Ö×Ó¹¹Ïó»òÕß˵Ô×Ó×ø±ê¾ö¶¨·Ö×ÓÄÜÁ¿µÄÊýѧº¯Êý¡£Á¦³¡ÊÇ·Ö×ÓÄÚ²¿»¯Ñ§¼üµÄÀÉ죬ÍäÇú£¬Å¤ÇúÒÔ¼°·¶µÂ»ªÁ¦¡¢¾²µçÏ໥×÷ÓõÈ×÷ÓõÄ×ܺ͡£ ³£ÓÃÁ¦³¡ÓУº CHARMM (Harvard) http://yuri.harvard.edu/ GROMOS96 (Groningen/ETHZ) http://www.igc.ethz.ch/gromos AMBER (Scripps) http://amber.scripps.edu SYBYL Tripos Inc. DISCOVER MSI Inc. ¡¡.. 2.4·Ç¼üÏ໥×÷Ó㨼´£¬²»ÊÇͨ¹ý»¯Ñ§¼ü¶ø²úÉúµÄ×÷Óã© •¾²µçÏ໥×÷Ó᣼ÆËã·½·¨ÊÇ£º ![]() •Çâ¼ü×÷Ó᣼ÆËã·½·¨£º ![]() •ÊèË®×÷Ó᣼ÆËã·½·¨ÎªHINT •·¶µÂ»ªÁ¦£ºÀûÓÃLennard-Jonesº¯Êý¼ÆËã ![]() 2.5¼ò»¯µÄ½á¹¹Ä£ÐÍ·½·¨ •¸ñµãÄ£ÐÍ •Àëɢ״̬·Ç¸ñµã£¨off-lattice£©Ä£ÐÍ •ͨ¹ý¾Ö²¿½á¹¹Ô¤²â£¬¼õÉÙ¹¹ÏóËÑË÷¿Õ¼ä Bonneau R. et al.Annu. Rev. Biophys. Biomol. Struct. 30:173¨C89 (2001 ) 2.5.1¸ñµãÄ£ÐÍ£º¼ò»¯·½·¨Îª£¬Óøñµã±íʾëÄÁ´ Óŵã:·ÖÎö¡¢¼ÆËã¼òµ¥ ȱµã: ÄÑÒÔ±íʾ¾«Ï¸µÄ¼¸ºÎÈ¡Ïò£¨ÀýÈçÁ´Å¤Çú£©£»¹Ç¼Ü½á¹¹¾«È·ÐÔ²»»á³¬¹ý¸ñµã¼ä¾àµÄÒ»°ë¡£ ![]() 2.5.2Àëɢ״̬¸ñµãÄ£ÐÍ ½µµÍ¸´ÔӶȵķ½·¨£º½öÔÊÐíÌØ¶¨µÄÖ§Á´¹¹ÏóÇÒëÄÁ´µÄ»¯Ñ§¼üת¶¯ÊÜÏÞ£¨¼´½«Ö§Á´ÏÞ¶¨Îªµ¥Ò»µÄ¹¹Ïó£»ëÄÁ´¹Ç¼ÜÏÞ¶¨ÎªÌØÊâµÄ¦Õ/¦×½Ç¶È×éºÏµÈ£© ȱµã: ¦Ø½Ç×ÜÊÇÆ½Ãæ½Ç£¨0»òÕß180¡ã£© 2.5.3ͨ¹ý¾Ö²¿¹¹ÏóÔ¤²â£¬ÏÞ¶¨×ÜÌå¹¹ÏóËÑË÷¿Õ¼ä ½µµÍ¸´ÔӶȵķ½·¨£ºÀûÓþֲ¿¹¹ÏóµÄÆ«ÏòÐÔ£¨biases£©»òÕßÐòÁлùÔª£¨motif£©½µµÍ¸´ÔÓ¶È È±µã£º¾Ö²¿¹¹ÏóµÄÆ«ÏòÐÔ£¨biases£©³Ì¶È¡¢Ç¿¶È·Ç³£ÒÀÀµÐòÁУ»²»Í¬µÄÐòÁÐÖУ¬ÐòÁлùÔª·Ç³£ÇãÏòÓÚ²ÉÈ¡µ¥Ò»µÄ¾Ö²¿¹¹Ïó 2.5´ò·Öº¯Êý »ùÓÚÈܼÁ»¯µÄ´ò·Ö·½·¨£º×ܽáÒÑÖªµ°°×ÖÊÖи÷λµãµÄÈܼÁ»¯³Ì¶È£»ÅªÇå¸÷°±»ùËáÔÚ¸÷λµã³öÏֵįµÂÊ¡£ Åä¶ÔÏ໥×÷ÓãºÄ³Á©²Ð»ùÓжà´ó¿ÉÄÜ»¥Ïà¿¿½ü ¶þ¼¶½á¹¹°²ÅÅ£º´ò·ÖÆÀ¹À¶þ¼¶½á¹¹µÄÔª¼þÖ®¼äÆ¥ÅäµÄ³Ì¶È¡£ [ Last edited by cnlics on 2010-9-18 at 19:42 ] |
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Part III: ab initio prediction methods 3.1 Scoring functions Molecular Dynamics simulations(MD) Monte Carlo (MC) simulations Pathway Models Combined Hierarchical Approach Genetic Algorithms more¡¡. 3.2 Ab initio prediction:Using pathway models Pathway models combine the scoring function and the search. HMMSTR-CM: a fragment library (knowledgebased potentials ) + a set of nucleation/propagation-based rules(for building a protein contact maps) 3.3 Ab initio prediction: TOUCHSTONE ----- threading based tertiary restraints SICHO (SIde CHain Only) model Prediction of tertiary restraints:side chain contact(PROSPECTOR); consensus contacts Structure selection with an atomic potential:Monte Carlo simulations; Kihara D. et al .PNAS , 98 (18) :10125¨C10130(2001) 3.4 Ab initio prediction: Combined Hierarchical Approach highly simplified tetrahedral lattice model:all-atom models combined allatom knowledge-based scoring function:three smaller subsets consensus-based distance geometry procedure Samudrala R. et al.PROTEINS: Structure, Function, and Genetics Suppl 3:194¨C198 (1999) 3.5 Ab initio prediction: more¡. Distance geometry-based Ramachandran Plots-based Rosetta Huang ES et al. J. Mol. Biol. (1999) 290, 267-281. Bernasconi A. et al.ERCIM News No.43 (2000 ) |
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