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No.25 (2007 October) 11 2CDR"#)4<J98FU ?%<M0=63$*(V -BN15*7H5&/GI>< A+OP:LK 15QE5GIH ,5OPS'!T 1;.@ ÑÐ © § HP=¨:D"Î HIÏ©mQ¨¬¦±vY[#¨Q&§sK£ ³N"¥T O)¦NMF,µQL³ HI¨@{J,¥£ÎÑÏɽ¿Á¤o ¦ÁÇ˽ͨ"?µ1¢¥«8§ÎÒÏN"n ¥>R§T O³o7¨i 6ÎA¦_#µ1¢Ï¯$lµ:³¥3±´³¤´± ¨Vpµu«£:;¦ HI¨@{¥Dl HI"jµrqagR§-SR¨Dlµ1¢"µ ¤¦Õ<]¤©A,2- (Diversity-Oriented Synthesis) [1-5] µFO³·ÆËÍ ¾§Rµf¡£9y¨&µc ÒÐ A, 2 - µ FO : O " ¨5 b A,2-µONMF,"5b¨·ÆË;µÑ¤C(R§Z[2, 3]« ?¥_#¨A,§%¶ "jµxz§ÎÓÔ'\Ï@`³ÎA,2-ÏE§ :;¦@{J,µ1¢"µh£A,2-¨}\¤?§d¬w«´$l µt4²§ÉÍÂI§ÄÊÀ¸ÌºÅË¿¹ÎBBϵ|e³ÎÈÀ¸¼ÃÊ°ª»ÌÄ ÃÁÉ·Ê-Ï£+±´"j±DlQL§9~¨®¨µ0³/¥¦³¨° §A,2-¤©ÄÊÀ¸ÌºÅË¿¹|e§Gµi*§l¦$lµ?§ d¬w¬¢¢o¤A,§%¶ @{¨"jµ!§_0R¢W'\¤@`³§ Uµi¨<·ÆË;¤©A,2-¥»ÌÄÃÁÉ·Ê-¨.µR§F O¤³ HI¨-X^§n´³BR2-¥A,2-¨k§£@`¦ No.25 (2007 October) 12 #DK.uve[`xts||WrZn<K#Qo! 3~uy°ZnQ±d.\7°Retrosynthetic Analysis±.]IO9s4r*W rQwA-#UZn";#U!3¨®¢¡°QwaZnw ";±V'xi[s r°²±Znp8";O$%X #U1:PXrw°³±)NG.@Ur=)N Rb aUv$,- z>|Xruv[?~M)N¨®¢¡&Exkts³1{r Ugi—Diels-Alder £¯¤©,rmF—lFgS§¯ª£¢¡,R¨®¢¡ rTF~µF-p8DK:P.~u[6]s 5 c r Schreiber r " ; - 0 . ¨ ® ¢ ¡ O 9 0 j ~ r Forward-Synthetic Analysis 2~[2]sr#p8";-C+LK~³ \_~us °¶ ± ^ A- H ¨®¢¡ µvr¥« ¯ 1 (~,- qu ¦§¬ 2, 3 H}r g SFB,x hY~rµF- 4, 5 xG. 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S NU }U¢QSeRXl"^Tkuavmh#}Se£t"us :H/.bz{[n¤3F<7%5>E+15¥`so¡O¤]¨§¥ >E+15bz{[n$/1F CoA¤cWP¥?H6F CoA¤NWP¥ y"M[>E+15[n 34D+15SeiZ Claisen [9HH$/49'7I[n Kq\K34D+15L QS eZi Aldol [(F/EIn!xmA1GI)F=6 F`SeRVBJ5\K}U¢Qu}Se[n bz{[n`so"s 8<E-I"w£t Scaffold ` s C 6 2 4 " 3 34D+15¡O 16 %I5JF>E+4I` } U¢ Q L Q "[n-$0V¦H-&@d)F;7%5jn } U¢ Q | f A1 G Iy " p x mV >E+4I_ %I5JF-$,)F=6F`"Y 3 P"r Scaffold "x S e R V Xl B J 5" :H * D@ Y :H / ." g~ S %I5JF No.25 (2007 October) 16 $1&2%*89@K~RwEXD(3-1(> 100 mg)v= N^ 76onhVJijckVoEXYq"e>bIdVO# Jij89@K/%,/04"Ens{}scy]Yq"[< SMC 5g?cIdVOJij89@K~"hp`$-24)Ji j@c"ApTachVtuxo:@Kf"G 9@K lU5g?c|"zSZ\Pa_fEXCL" ;.+4'mF"Q@K-24,"BWH]r! [1] S. L. Schreiber, Science, 287, 1964-1969 (2000). [2] M. D. Burke and S. L. Schreiber, Angew. Chem. Int. Ed., 43, 46-58 (2004). [3] 2004, 57(10) 1054-1057. [4] P. Arya, R. Joseph, Z. Gan, and B. Rakic, Chem. Biol., 12, 163-180 (2005). [5] D. S. Tan, Nat. Chem. Biol., 1, 74-84 (2005). [6] D. Lee, J. K. Sello, and S. L. Schreiber, Org. 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No.25 (2007 October) 17 OXYZQ\=GW(P $9A +,/3'J]:(RH"& @^@B@B_F?UBSVU1)*F?DBCI KM;7 `a ûŶÌÃü § c{xÀŨ L_¯Ð´ÓÒn#HÃEÂHÔ¾%Õ»a_Ôj¬¾¨ ¤v¿n#HF°®ÒÍÄ¿«Ò©h{Ôj¬Â¬ºÌ/s/ZÂnÔ#H¿±Ò¨ n£°7Q¿«ÒÂÁÄb¯Ð¨c{xÅnhiÃ@²j¬ÐÓ¾¬Ò©g*¿Å¨ 0kV¨:¦kV¨ØÝÙkVÄÍÄÂÁ°>´Ó¾¬Ò©'Ũc{xÔj¬¾ ¼¾±ºqtý¬¾|·Ò© û2<4oJ]ÈÄjúnÄ\TÔpNµ¾ü § 2<4oJ]ÀŨ.lÀKÄëóàÞÔ~ѵ³ÀÃÏÑh 2ÄGÔO.·ÒJ ]Ô[1]©®Æ¨1d zÄÃïôãîÃud.lÔ9·Ò³À¿.l+nï×êïðõ ÔHµ¨¸Ó¹ÓÄfGÔÉÒ³À¿ z^GÎe56G°¥¬.l+ zÔD·Ò³À° ¿«Ò[2]©2<4oJ]ÃÏÑÓºnÔ·ÒºÌÃŨ0ÂPÄ.l+2Ä ¯ÐP;¬¥\nÔÜõç·Ò2ÔKµ¾²Ò³À°¡¿«Ò©¸ÄºÌÃŨ¸Ó¹Ó Ä2¯ÐÐÓºnÄ\Ôé×ÞñõëäæÃW¿±ÒxÔYw·ÒE°«Ò©c{ xÔj¬Ò³À¿¢?Ã/²Ä.l ÔAÃÞÚðõèôÛ·Ò³À° ÀÂÒ©³³¿Å¨< ¡ ¿«ÒðíáõîÔj¬º in vitro compartmentalization [3]ðìáõîåÖÞëò×][4]Äù½Ä 2<4oJ]ý¬¾|·Ò© § IªÅ¨hf Ô[µºF-Ô®Ò³À°¿±Ò{Ý×ßÄðíáõîÔ28ÇÃn mgÄ&Àµ¾j¬Ò³Àõº[5,6]© oÃŨ)øÄÏêÄðíáõîÃc{ xÀÃyø2Ä DNAö³Ä-#¨þ ýÿ2÷Ô8µ¨¸ÄCÃn FÔ©³ÓÔàñáõâõö FACS÷Ô j¬¾¨Wµº}XÔ)ø!Årµ¾¬Ò© ÃÂÒ°¨³ÄÏÃÃ(ËÓºF -¿Än#HFÔ kinetic ÃW·Ò³ ÀÍ ¿«Ò©³³¿¨ÔÊÀÕÁr´Â ¬ðíáõî°º²´Õ`´ÓÒö)øÄëó > 42-538 =G<E' [L 6%'N!6%'42-53'05.(T# äæÄ=è/²Äðíáõî°3*µ¾¬Ò ³ÀÔr·÷³À°ø2Ä DNA ¯ÐF°µ¾¬Ò³ÀÄMĽ¿«Ò©#H´Óºn°¸ Ó ÔU·Òöe.g. GFP or RFP÷¨Íµ²Å z¿«Ñ¯½,Ô$SÃ8·ÒÀ¨"ðíáõ î°m·ÒBAÅ¿#H´ÓºnÄ\ÔRµºÍÄÀÂÒö)ø÷©¸³¿¨FACS Ôj¬ No.25 (2007 October) 18 ¯~>=µ>ßÛÍãÝĨÁ¥±°\zÄS¨Á}jÄËãÔ§« 0ÄB°£ Áº«ñïðò¶ço´èææææµßÛÍ ãÝÄV°£Á«»¡³ÀµPµ+h% 0¢ËãÔ¨Á}jµFÄ ¹Á¥ ±¢z±³ÁH¶µQ`Äf¯ \z}jÄËãÔ¨Á 0Ächk´ L¨Á¥±¢z°Á¥±Än§«ä#èå [3]U4q¶ßÛÍãݱeryÄ[ §«d(°L¢Áa¡¿{}jµ³²¥Âº°092kJ`µÎãÊÐÓ± ³À´¤¡«}j¸µf¢T@¦ÂÁ¦¿´¥¥°s§«ßÛÍãÝ°µe2EÄÓàã Ì°£Á4q¶ryµ¾³D7p°µE´5¨Á{0µ?Ä ¹¿ÂÁ±a¡¿¼ Sf°Á ßÚÍãÝÒÇÌØàÈ`¶#éµ¾ ´ÌÑÐØçéÄuÀ¨¥±´¾À c3µßÉâÔ´t¨Á}j0 ÄB¨ÁJ`°Á[7]çíÞÈ×Þß ãÄËãÔ¨Á mRNA ¡¿bryw q´¾ÀßÚÍãÝmRNAw¦ «}jµxäAßÚ Íãݱ ·åÄÀ¨èîN n¦Â«}jµ¬ßÉâÔ´5¨Á !F¢Á¼µ¶t¨Át§ ³¼µÄÀ¤éît§«}j ÄËãÔ¨Á mRNA ÄM§RT-PCR ´¾À)<¨ÁêîRµÌÑÐØ´I ÀçéÄuÀ¨ßÚÍãÝÒÇÌØ àÈ`¶KÞÈ×ÞßãÄf«' ´¶.£³GÄ»¯ Àch k¡®;´!F°t¨ÁK0³²¢B¿Â¯Áº«K,¸µf¼z° ÁßÚÍãÝÒÇÌØàÈ`¶ªµµ092kJ`±_¹¯¼¡³À|.³Pµ+h% 0äçæçè嵡¿P8³\z}jÄËãÔ¨Á 0ÄL§¯¤Á¥±¢z°Á[4,8] H¶RßÚÍãÝÒÇÌØàÈ`Äf¯ WW domain µ+hµ®°Á WçìF +häçì glµ Trp ¢ Phe ´vO¦Â«¼µåµ\z´G§«WW domain family ¶éæêæ^&¡¿³Á 7¦}j°ÀP-¤µ}j´1$§ØáßâßÐϳÙØÏÔäPY ligandå´t¨Á\z ÄS¨Áä#êAåÖÅÜßã°X´1¦Â¯Á^&´6¦Â«+hW17F ¶ WW domain µ \zĦ©WW domain ¢S¨Á three-stranded antiparallel -sheet ZÄm*¨ÁäýÁ natively unstructured protein ´³Áå[9]¥µ¾³ WçìF +hÄi±§¯ßÚÍãÝÒÇÌØàÈ `ÄfÁ¥±°X´1¦Â«^&µvO´¾Àé]ZÄ/«}j¢\z°£Áµ¡Ä 4k´Y§«®ºÀzÄS¨Á¡ÄY§«ªµtWêëÆÜÕvO´¾ÀW17F +h µ§«\z¶e%´"C¦©Á¥±¢°£«ä#êB庫\zC:´±¼³&ch No.25 (2007 October) 19 8²I~O8ªB©s´· !:Q W17F 'S«+L$ºh=fH^I~&·Kl ¤¶ @¥$ |OS8 g²©¨¢¤¶¦ ºu Mª³¨I~ %8 º±£ ÃÑ˽| functional promiscuity ºZ¦¤·®¥I~(J8º±£; multi-specificity ºZ¦® C}(s£¢¤¶ Natively Unfolded ÃÑ˽|(Kl8ºP¯¤¶¦X´·¤¶ [10,11]ª³¨I~%8P¯ functional promiscuity «?tKlºD¶ÃÑ˽|ºP¯ ªÂÒÁ¦¤oU|ªr¨8|¥¶¦{z·¤¶ [12]ª¦´:« W17F ´?¨$|OS8º±¢KlÃÑ˽|ºP¯¦¥¶¦j.º°¤¶¦ ¸¥¶ &:;!,-3/4+26# 8<9 0"*5 896#(7$)'." 1%2 ÜoU|9ÀÁÅͪCÝ oU|9ÀÁÅÍ«ek©¦¢¤3©r¨7¥¶C}ªY]´iw7ºpª©C 6r¨oU|"*«×Ú[ªoU|¦ÎÌÂÒÍ ¥¶¦.V©Z·¤¶[13] V©«Initiation, elongation, termination factors´©« ARS»ÉϼÒP©¹¶oU|¬ © ribosomal proteins ¨§¥¶·´$F"*«)mn¥«* 4300 [[14]ª¡ª¹ 2.5% ¥¶@¥)mn¾ÊÍ©¿ÒÈ·¤¶rd«©WQ¤)¨ÉÄÇÐÒ ½ºI9¤¶[15]¥«2.5%ª$F"*¥\¶7ÉÄÇÐÒ½ÔoU|97ÀÁÅÍÕ¦« §· ªoU|"*WQ¶ª¥¸Þ·´ªT ©_¶¦¥oU|9ÀÁÅÍ ª0ºA´©G¶ ¥¨oU|9ÀÁÅͪ2,VC©¶Xsº5¶¦¥ ¶¦j´·¶ ª$F"*ª¯´I9·¶NekiwbPURE system «)mnRGªiw7©¶ oU|*º¤aq·ºI9¶¦©³µx`¥oU|97p¶±ª¥¶ [13]:«)mnRGªáãßoU|ØÖÛØ[ºNekiwb©³µ9·· PURE system ºQ green fluorescent protein (GFP)97©¶4ºyÔ#ÙÕªfHØÖÛØ [ª¡ 8.2Óàßâ97º3.8Ó/¶H¶¦ºA´©³¢¤ ¹¤1¨¦± 12Óªáãß$F"*´I9·¶oU|9ÀÁÅͦWQ¶¦A´ ©¨¢)mn¾ÊÍ©¿ÒÈ·¤¶áãߪ¡c>Ô.V©ÕKlEX¥¶[14]³¢ ¤vªÆÒë(>ªKlEXoU|ªKlº<-¶¥±3©DQ¥¶ No.25 (2007 October) 20 hw5ª2¹ «pX{ ª£¥y® Ò¦5¹,¶§ O*· pX{ª¬toxin §¥" ·¥¶(ÍChpA, ChpB, RelE, YoeB, YafQÎ¥¯·¥ A¦¨« ³©JI¦pX{;5¹,¥ ¶«t1£©(±%?* · ÍYhaV, PolA, RibAί ·´ pX{;¹,¥¶§¬ SDS-PAGE ª³µ[x hw5¹ ~¶§O*· pX{¬··¹ ar«H¹y® Í ÓΫeH y ® Ó £ « p X { « · ± PURE system ¹U ×ÖØ;5¹~ #=@$012.5 "*!)'8 ¶H[x¦ ¯ Ó£«arp /62.5 X{¹Dª¶§¦×ÖØq "*!)4;+7( 3,6<:?<-%9& ¬ 2.44 B Ícompleteη´«eH Ñ«fguG«:6¹\±«¦¶·´Ó£«pX{«H¬KY¦¢ £¯µÓ £«pX{¬ GFP ;5ªQ`ªU¥ «§¬´©¶pX{;½¿ÀÅ«Eª ¬s¦µ³µ%]«(«Lª³µ´©¶;«#F3·¶§¹8¥¶· ´«eHª£¥¬Ovd¸µR!z@=^¦¶ <¬U(&lo(«/© §±ÏÐ̦¶§ez¤ ¡Ï Ð̬ underestimate ·¥µ·ª 2¹¶()!¶§7· ¶©©´ &lopX{Jk ¹WR¶P9¦´·¥¶§¬´ ©´¦¶ §¥%?)!¶Ã ÀɺǼÄ˧¥Jk¶pX{²mp X{«)!¹i·-Cª7¦¶ SV´ÏÐ̬E.¦¢¥ ·«U()!¶§i¶« 1¦¶«§¬TN«O6«% pX{ª³µ»ÊÁÉËÈ·¥¶+ #>@ "*!) ´i¶§«eH¬ 0ª'1©±« /62.5 ¦¶ "*!)4;+7( 3 ÔE4ªÕ |® ³ªMcjhwb¹U¥pX{«Jk>$²pX{;½¿ÀÅ«Su¹~°¥ ·´«Z_¦}¥¶§¬³µn±«¹µ §Â¾Æʦ¶¶§¹} No.25 (2007 October) 21 KN'%QTPDEOW*,]:VNXGMDP/FND\@ m79n RQ<KN?4"?!( ?(-#QJ=GUKM@ *,R;Sk;+ )+2068A.1>^dfjagi$RlXZHehb_`cBR*,Q Y\WROC[?IIQ5KN7]3KUL@ m/&n 1. 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No.25 (2007 October) 22 "+ , )!'*#($&% $& « ºÉ<Êb#3krĀêăËÉ*uYש¶¬B¼Í½xÈ9{»¿Ä©¶Í½Æ¬ oʬ 703¥b#3krpn¨NJÉÐÆÅ,×?¼Á=¬2006 : 4 RÑÓ`(È ÔÍŬ0£;t03¥a3ykrp¨NJÉÐÆÅ,kr$ƼÄkr»¿Ä©±Ä³Ó ͽ`(¬1FɪY×iH¼ÁPÁÇD\Élt×ûÜĂíăùÈÓ|ØųÓͽ « FêĂòàÊbfãåíúȳ¸ÔT×GÂijӬ`(¬ºÉFêĂòàÉYMÈ¢½ÔkrµW®Ç<ÑÓÖÕijÓͽÀɧ¬bfyɶ×X¼Á¬¯/WAÉg bĄýÜõýþăVwą°¬¯LmĄ2)Æ`)É¢ ¸ą°¬¯ĄçĀàãüĂą°Éåíìö×Î 4!Ądirected evolutionąÆ±ÂÁD\µÑ·ÒÕͽÈI¹ÁºÕÒåíìöÉdi¬¯Lm° ÊôÙăäîÛåöĀÜ\×ÏƼĬZîÛåöĀÜ\¬þøèăúîÛåöĀÜ\v¬ºÕÍÅÈ/q /WÇîÛåöĀÜEµ+"»ÕijÓͽ%ÊC®b#p3~ÈÆÂÄQÐÇb_Éì 0 ×c±ÁîÛåöĀÜ\ÈÑÔPFKzE¬Æ±²^´ÒO×Ć+{»¿Ä©¶Í½ Binding and enrichment of Escherichia coli spheroplasts expressing inner membrane tethered scFv antibodies on surface immobilized antigens. Jung ST, Jeong KJ, Iverson BL, Georgiou G. Biotechnol. Bioeng., 98, 39-47 (2007). APEx 2-hybrid, a quantitative protein-protein interaction assay for antibody discovery and engineering. Jeong KJ, Seo MJ, Iverson BL, Georgiou G. Proc. Natl. Acad. Sci. U S A., 104, 8247-52 (2007). Isolation of engineered, full-length antibodies from libraries expressed in Escherichia coli. Mazor Y, Van Blarcom T, Mabry R, Iverson BL, Georgiou G. Nat. Biotechnol., 25, 563-5 (2007). « 2004 :¬íßâå03 George Georgiou ÒÉáÿăöʬPÁÇ0 îÛåöĀÜãåíú¬anchored periplasmic expression (APEx)× PNAS È+"¼Í¼ÁºÉD\Ê>SÉD\ÆÊeÇÓ¬ihêĂòà ×0 É8¬÷þöýæús¡ÈÚĂÞăþĂỿͽÀÉ=¬EDTA-þéëăú×c± Ä.צ½ÔŬihêĂòà×Lm¼ÁåôÝāöýåï×?ԺƵSͽºÉD\×c± ÔºÆŬ>SÉñàíþÚÉîÛåöĀÜyÈ[̬.È&½Ô2¡jc¤5É]ÈÑÓ¬ 2 É0¶±êĂòàvÉFÐc±ÔµSԬƱ²0¶ÇûþìïµÍÕÔÀ²Å½% ÉĆ+ʬºÉ APEx ×c±Á@c}¬Å½ « ;¬Biotechnol. Bioeng.ÉOȳ±ÄóăæÈ'4¼ÁFÈ6½ÔåàþăðĂá\ÉU× No.25 (2007 October) 23 ~µ¸¤Â¯¢8P½ÙÔîóáòÕX¹¾¡W3¼G°³}SC¼2®¸CÎEl°³ txΦ¡FACS ¹C©u ®³txίʺ¤µ³ A¹®³©¡OH¹¾tx¹OC scFv º GFP Î fa°¡¬½ÙäÑñæíÙß©u ®³CSãóÚÎ FACS ¹¯ÊÙÔîóáòÕÎ~µ¸¤Â¯ (' 1)¢±½u Q¡APEx ×ÙÞé¾(1CÆtx3¼fa°³C ¼2¯ÊCÙÔîóáòÕÅy¡º¤¥¬º©lË® ³¢ ¬½H½g¤º¬Ì¾ÏòÓóîòÕ¼c¤ÊèæÝàÆ ÛòâÔÎ 3 mÅR®¸¤Ê¬º¹¯¢±½bd¾¡} SCÎc¤³3El scFv ½Cu y¾ 3 m¯Á¸½ ÖóÙ¹#»ªkP³½¹¯©¡C©(1˳ã óÚ¼2¯ÊM>»u ©kP³½¾ scFv ½ C Np¼ä ëóØìò°³ gp3 Îc¤³- ½Ã´µ³^¹¯¢¬½uQ ¼2®¡|wȾ N Npº C NpäëóØìò½¤¡ÏòÓó îòÕËÊ-@½¤¡q©&¹¾»¤¨¡ºÁ¸§É ®³¢©¡aK]¹½I1¾®¤Ç¥¹¯¢|wȾ¬½ gp3 ½rÎc¤¸ih½C¼u ¯Ê scFv /½ 950 ½[ v¼?®¸¤Â¯¢ ) !1*,&-'3( "$ # 40%5.2/+ ¶·¤¸¡PNAS ½H¹¯¢¬½H¹¾¡APEx ×ÙÞé ÎV Two-hybrid ×ÙÞé½Ç¥»6¼;c®¸¤Â¯¢èîæíÚén¼ÏòÓóîòÕËÊÇ¥¼¡ N Np¼ NlpA ½îóÜóèæÝàºL½ 6 U+(CDQSSS)ή³ scFv Î bait¡FLAG ÛÕÎ ®³CÎ prey º®¡.z{¹fa°Â¯¢Å®¬½ scFv ºC©jc¯Ê»È¿¡ bait-prey (scFv-C) ©El˳ÙäÑñæíÙߺ»É¡}S®³C FLAG ÛÕC¹¬ËÎ R ®  ¯ ( ' 2) ¢ | w È ¾ ¡ ¬ ½ r Î c ¤ ¸ \ e { ½ : C à ê Ð ò (PA-D4) ¼ 2 ¯ Ê scFv14B7(KD=3.3nM)μ®³íÐåíîóÇÉ pmol ÒóÜó½ KD Î D¯Ê scFv ½_9¼?®¸ ¤Â¯¢ ȼ¡|wȾ bait º prey α˲ËC½ L ¡H (VH-CH1)º®¸fa°¡scFv ¹¾»ª Fab ôIgG ÎÛòâÔsââÐò¹b¯Ê¬ º¼Çµ¸9ÈËÊCu Î!Ä)õ½6 ¹El°ÊBÎko®Â®³¢4¡.z{¹ ½ Fab ½fa¾`©=¤º Í˸§É¡* Z5Î 25 ¼«Ê¬º¼ÇÉ¡±½fa©F$ Ëʬº©£Ê±¥¹¯¢|wȾ¡%½¬½J Fab ElAXÎc¤¸¡*Z5 37 ¼§¤¸ ÅfaÀY<©ðçï¼ DËÊC PA Fab Î_9®¸¤Â¯¢ ¸¡L7¾ Nat. Biotechnol.½H¹¯¢¼ scFv, Fab ºP®³¢º»ÊºT¾0½ IgG ¹ ) ! 40%5.2/+ ¯¢¬½H¾0½ IgG ½3ElB½ko¼¯Ê,"ή¸¤Â¯¢¡¬Ë¹¼Á No.25 (2007 October) 24 §¯ ¥APEx ÄÅÊÖ¹[§¨¡ &uv¨ L (VL-CL)H (VH-CH1-CH2-CH3) ¹£·¤·LÄÁÍÚ pelB ·¥V5¨ NlpA(1-6)-ZZ ©`X¢¯¡ZZ Ì×¼Ü Fc «U^b«q¡¶SÓÙÑØÆÖm«» Ü¿ÝÙÜÁ·¥ ZZ ÄÁÍÚ«³¦§ ·§¥ IgG ¹ËØÉÑ qFb« IgG =h·¥ÅϾÛÑØÅË©ªµ¯¡ (" 3)¬ 8M¨=h«1|ªÔÙÓÑÈ̹ IgG « ¡¶©ª FACS ÅÀÙÝÎÜÁ¹y C/´·¥ÀÛÝܹ£¬¯¯ IgG ZY«[¡ ¶©t©ªµ¯¡ ws´¬o¹[§7]µ«: PA : (M18.1 Hum IgG): digoxin : (26-10 IgG) £¬P3¹; ¥V5¨ÅϾÛÑØÅË{*« = h · ¶ © ¹ g ¥ . : PA : : : digoxin : =1:100,000 ¬ I > Ø ¼ Ð Ø Ù Ý ¨ FACS ÅÀÙÝÎÜÁ¹y2 üÀÚ¨cb IgG ¬ 100,000 Rr©qF¹/§¯¡¯¥ PA ¹_ ¥Õ½Å³µ/´·¥ VH, VL ؼÐØ٠ݹ IgG `X[ÒÀÇÝ«p°¬ IgG ؼРØÙݹ[§ÅÀÙÝÎÜÁ¹yA nM ¬ KD ¹;¡¶ IgG ¬W/«6 §¯¡ !G~ ¥ IgG k¨¡¬ IgG ¨ ±()«`X=htª´®¬ÄÅÊÖ ? ./04(N"/+6928, ./04 VJ%&:XGTHB :¬}E9z«¹±¥´¡± ·¯¢º/´·¥:¬Jt?%ÅÀÙÝÎÜÁ£ §Jt }E¬S`X ²¡ scFv, Fab ¬-V«¸¸j¡8e¶¨¡´¬ APEx ÄÅÊÖ .©±Nc §¥©2¦§µ¯¡ YZO L]$#! #'^ M<CDCD[K\@=WQDPSQ 51)*7-34EI >AUR;F ¬,Þ¬³ªÂÝÍݬ$n¨¶J ¹0´4\ ¯¡X#iÞD&' &'¬OBQ+@<¬¨Þxa-DNA d[¬T'b}E¹yª´ÞU«H% ©K «Nc ¥fl¹y¦§µ¯¡ No.25 (2007 October) 25 ÇÐzÇÛČx×¹7ºÕ>ÈÐÓ×â¾ÔëāĉóéÀRÍÑÈá¾ÁčØg|ÔÒÅçČ9 ¬XÕSaÑ9ÙÛÈÌČ½èàå¹®Ò®ºĂĉù·ÕÈÎÁä_Ü£êѽÛÉĊ½ÛÈÌċ» ½Õ}yÔb§ésMÈÐùöíćïÈČ*Â:;%Éå»ØÛÑxé¹üĆöîº×â¾Õ ëāĉóÈнÛÈÌ»ÅÅÑØČËêÔëāĉóÂÚÍ2ÇæÌČx×ÛåѹrÃoº×â¾ÔĈ séÆ ÇÊжÃÛÉ» Hot-spot Mimicry of a Cytokine Receptor by a Small Molecule C. D. Thanos, W. L. DeLano, and J. A. Wells Proc. Natl. Acad. Sci. USA, 103, 15422-15427 (2006) rÑØČo°×}s(x°}s)ÕâÎÐeÂwÇæåÌÞČÅ×}sé ªUÉå±< Ë×±< és½ÐË×eéPÉåÒ½¾VjÂ"ÔÓ×tÑØ{êÕèæнÛÉ» ×Õ¼ÌäÔL0ÒÔå×ÂČ}sÈнå¹*t´×b§ºÑÉ»Å×b§é 'Õ7é½±< Â\ÂäÛÉ»ÒČÅæÑ4 cÔÂÓêÓêæ˾ÔiÂÈÛÉÂČ[TÑØx ´ØËêÔÕ&ÑØÔ½Â~ÇæнÛÉ»v×ò ïúą¨ÕÀ½ÐÔG!é^ÌÈнåx IL-2 ØČ Ë×(=Ѽå IL-2R Ò}sÉå×ÑÉÂČÅ×} sé±<Éå?7(SP4206)Â÷ñĄćïj(*t´Õ? 7ăëüăĄĉéȱ<$^×¼å7é«ÈнÄ)Ò ½¾OjÕâä¯wÇæÛÈÌ»ÇÐ IL-2 ØÓ×â¾ÔcDÑ SP4206 Ò*Èнå×ÁČ*×Yb§é½ÐÜÌÒ ÅçČÔêÒ IL-2R ÒØÛÎÌÄuÔå*t´Â IL-2 ÕØE NÇæнÌ×ÑÉ(- 1)»IL-2R Õ>ÈÐ IL-2 ØBãÔ* - 1. )ĄìćùÕ>Éå IL-2 ×*t´×c D (a) IL-2Ra *×1*, (b) SP4206 *× 1* (TâäQ) t´ésMÈнåVÑČSP4206 Õ>ÈÐØąĉý¬é þĄöîô ÇÊÐméÏÄäČØÞ£Ýâ¾ÕÈÐ*t´éENÈнÛÈÌ(- 1)»¦Éå×ØČ³ ×AÒ*puKÕ5ÃÔFµé¿å¹Hot-spot h/ºÑÈÌ»x-x°}sé±< Éå?7ÔÓׯwØ5ÃÔ@1ÂZHÇæнåČÅ×â¾Õb§×dÑØ>JÑÃÔ½ x×`¡KÂWãÁÒÔÎÐÃнÛÉ»x×}sØČÛåѹ ×OºÜ̽ÑÉÖ» Structural Basis for Cooperative Transcription Factor Binding to the CBP Coactivator R. N. De Guzman, N. K. Goto, H. Jane Dyson, and P. E. Wright J. Mol. Biol., 355, 1005-1013 (2006) ¤CČ¹6n3Kx(Kx)ºÒ½¾éâÄÕÈÛÉ»x&qÑØyÕČß ÈÄجyÕÄ×ăćõĀÔb§Ñ8.ÈČ*}OÒ¾ÅÒÕâäb§éENÉåČÒ½¾ß×Ñ É»[TÑØČkK%#,7 CBP Ò½¾x× KIX ùāëćÂČ¢,7 MLL ÛÌ c-Myb Ò *éENÉå²ČË×*ðëøÕÀ½Ð KIX ØăćõĀÔb§ésMÈ}sÈнåÅÒéČ4 f NMR ôÿîøąl;Õâä]ÈнÛÉ»ÅÅÑØ&q× KIX Õ>ÈÐ MLL Â*Éå²×+ KâäßČc-Myb  KIX Ò*ÈÌ*Õ>ÈÐ MLL Â*Éå²×+K×V¸½ÅÒÂ~ ÇæÛÈÌ»¥× c-Myb ÕÀ½ÐßČKIX:MLL *×VÂâä+K׸½^ÂIãæнÛÉ» NMR ôÿîøą×%9òûøÕÀ½ÐČKIX &qÒ*ÒÑØ MLL ×*ðëøÕÀ½Ð}© No.25 (2007 October) 26 ´ØÛċc-Myb Í KIX Èx!¾ÚºÈË×Ù MLL x!ÌX+޼Ưںȴp'»ÛÒ ¼ÂÕÃÜß c-Myb È MLL Í ¯Ëm e¼ÒÀß»Ø˦j¯ºÈÍċc-Myb:KIX z!È ^ÐÆ MLL ´x!¼Âz!ÇÍċloop L12 ´ MLL ËL¼×Ù4LÊøðæĉé޼ƲÙċ helix 3 Í MLL Ìx!Ë×ÄÆýąðèíXÞ;D¼ċË c-Myb ÏL¼¥¤kÊm eÞ¼Æ ¯ÚºÈ´QسÈÊÙÒ¼Â(( 2)ÅÒÙċºÛØ!Í«áĈíñąðèV¬ÞS¾Ú0ÞÄ Æ¯ÚÌǾMLL È c-Myb Í KIX ôā ãĉÞ¢ËJßÇÑ ÈßÉn#¯Ëy ¼Æ¯ÚËÕ£ÝØ ¿(( 3)ċPÌx !Ë×ÄÆÕ°P Ìx!Y:Þ» ( 2. KIX:MLL:c-Myb !(ternary)È KIX:c-Myb !(binary)Ì^(O× ÙGt) ( 3. KIX:MLL:c-Myb !˲¸Úx !y(PDB ×Ù) ÀÚȯ°ċB* Þ KIX ôāãĉÍ ËD¼¹Æ¯Ú ÌǾëéõĆÌÞHÄƯÚÈÝÛÆ¯Ú KIX ôāãĉS¾Ú CBP jËÈÄÆċºÌá ĈíñąðèVȯ°7ÓÊXÍ@ ZÊm eF]Ê̳ռÛÒÀß The Role of Protein Dynamics in Increasing Binding Affinity for an Engineered Protein-Protein Interaction Established by H/D Exchange Mass Spectrometry J. R. Horn, B. Kraybill, E. J. Petro, S. J. Coales, J. A. Morrow, Y. Hamuro, and A. A. Kossiakoff Biochemistry, 45, 8488-8498 (2006). ª ËÕ®ÙÒ¼Âjm e˲¯ÆchAË.µÊ<§Þ±Ú«Hot-spot \)”ċºÌKuË Í ch k+ h6 Ë ×Úm e U´ e¯ ØÛċcË á Ąöĉ \)Ë yM ¼ÆK u¾ Ú «Ala-scanning (áĄöĉíæăöĉé)¬È%ÎÛÚP_Ë×ÄÆ"2»ÛƯҾR>Ëw}¼Ò¾ OÍċÁßÊ Ala-scanning ÇÍQǵʯjÌ7/ÊāåöîĀ´½ØÛƯҾ ª ùóD¡ÿĆĂĉ hGH ÈÁÌ3Ìv{,ôāãĉ hGHbp ÈÌm eÍċùóÌD¡ÖiÌs ˲¯ÆÊ=ÞV¼ƲÙċÁÛË£¼Â-·Ìoq´*$»ÛƯҾÁÌÇċhGHbp Ë5¼×Ù©¯ &AÞp¾ hGH +h hGHv ´ûàĊìòâíüćã_Ë×Ù»ÛÒ¼ÂȺܴº Ì hGHv Ìx!Y:ÞvËÐÆÓÂȺÜċhGH È)T¨W(Ê[X)Í·"½Ç®ÚËÕ £ÝØ¿ċHot-spot \)´ hGH ÈÍ·hÊÄƯҼÂb1kÊU³ØÕċhGH ÍäĉïĆúĊċ äĉóĈúĊSÇ®ÄÂÌ´ċhGHv ÇÍäĉïĆúĊSċäĉóĈúĊǼÂm eË£¼ ƯÚ\)ÌïãüÖ!ÌrX³ØÇÍċºÌ hGH È hGHv Ìx!Y:̯´Qǵʯ ÌǾÁºÇ~zØÍċ9`l»ÛÆ¯Ú H/D M U_(vÊ3ÍC}¼Ò¾)ÞÄÆċ jÌkÊB*(Nض)³ØÞµQ³¼Æ¯Ò¾ÍċhGH È^ÐÆ+h hGHv Í|Ìx !êãó˲¯Æ«.µÊNض¬ÞIÂÀƯҼÂÅÒÙ|Ìä÷ĆçĊaÞ©·¼ċ!ÈÌ x!|fä÷ĆçĊ8Þ.µ·¼Æ¯ÂÌǾºÌÂÔ hGHv Í.µÊÌäĉïĆúĊÞd?ǵҼ ºÌ×°Ë\)ćþĆÇ &AÞ#»ÀÚÌÇÍÊ·ċx!Þ«NØ´Àڬȯ°kÊm eEgÞjÍIÄƯںȴ³ÄƵƯҾ No.25 (2007 October) 27 iͬ\É_ۤƺ٠ØzÒ·d$bÍR̢ȱٻÉÎRnÈ¿·ăX | {U\ZËÊÌÖÙ¬¦jË\ÈÎ¥g·±ØăìßòøäéË`Û ØÚ¬jË\ RÍ¢A·?©ÃÉB¾Ñ¿¯ÁÍTăÔ½¶½Â׬·ahAÿ%AÌ?ËͶĆÍr´ÌP ÂË·´Ç¹Ù¶Ô½ÚÑÀܯ $ !& ' %"# « »Í<Îd$2mpýëĀÐÍ,q_Û¨¸B½Ñ¿¯ /22mpCWmp6È L۽ǵØÑ¿XYÉf½Ñ¿¯b+ήëþôä2®aÌ® jË DNA {!ëþôäȱ Ù£õÞþãĀëþôäÍK.µÖÏ0>ÐÍeÌ ØzÜȲѿ¯ « DNA ¡EjË DNA {!ëþôäÍ DNA ÐÍ{!]=·®]°Ëd2jÝîêßÕ\ Z¶×R׶ÌËÄDzѿ¯ÁÍQ®/ËåóùÛ#ÓxÈ®DNA {!ëþôä·ÊÍÖ³Ì ÁÍ^j¡Ûź½Ç²ÙͶɲ³®34Ë{!ÌÙo̤½ÇήÑÃXRË`·Â¹¼ ܱØÑ¿¯)0Ûðçßþ½®ÁÚÛdèéïùÍȲ²É~´Âɸ̮0Íìßòøä é̤¿ÙlΧ:̢ȱÙÉ~´Ç²Ñ¿¯Á»È (ή)0ÍxÈÍìßòøäé̤½Ç®cµÖÏ 5ª¶×~7ÛÄDzÙOą-É®90>vÍ\ tÌ?ȱÙÉ~´×ÚÙ®0éßîí̤¿ÙVÍ OĄ-Ûy¼ÀDzÂøѿ¯ How Gene Order Is Influenced by the Biophysics of Transcription Regulation G. Kolesov, Z. Wunderlich, O. N. Laikova, M. S. Gelfand, and L. A. Mirny Proc. Natl. Acad. Sci. USA, 104, 13948-13953 (2007). « ÎÙ¶ 30 ;ÔSÌ®ûöýîæĀÉâ÷ýĀëĀÉÍ@ <4N·s¼Ú®ÁÍ{!·wËFMā3D diffusionĂÍ ÒÌÖÄÇÈÎ˹®{!Û¿Ù)Í1+·GJ¼ÚÇ ²Ñ¿¯Ñ®¬)0·ÊÍֳ̽Ç^j DNA ¡ÛÅ ºÙͶĆɲ³'²Ì8½Ç®»ÚÑÈ̹¼ÜÍcjm p·Ë¼Úǵخ ɽǮ3D diffusion (Jump)É 1D sliding (Slide)Û}ؽ˷×^jÌÂÊØk¹É²³úðü· I&¼ÚDzѿ¯×ή»Ú×Ì"¾àáßñÛµ²Ç * 1« [x̵ºÙ®)0āTFĂÍ ^j{!æßñÍH½QúðüāOÖØ DuĂ¯ No.25 (2007 October) 28 ÁßżÊЯìþďKÏ6Í´(/¹WhÎÄÌÞl»×ÊθÍÞÏP¢¹¸¸Çɿ׵½Ë âïăĆċďïćčÎÜÇÉm¿É´×Á°Ã¿ÉMÄί Rc_ÏëüĄÎ·´É¯±(//˯ ÃÏ(/ÏWh DNA ËÏëüĄÊϦĐ) 1Ađ²Ë´µ¯/ÏÒ®¯`Φ ¸ÝÏ@Îli¿É´×Á°½Ï¦Ïtζ¯¨`f DNA ÓÏ%D·ÜÒ¯¨`fx"/ Ï DNA ÓÏx"ĐHopđË´µð÷öÿâ{FÁß½ËÎÜÇɯga Ï6Í´(/ÏÛ¸ Í DNA x"âbhοܵËØÉ´×Á°jEhÎ{¶É¯=ÄÞÏâ¿É´ßܵÍX ÐÁßÏÊÁ¹¯Î¯ÌÏܵÍýĈąďóďĐ¶Ñ¯;h]¯óčýêÏUh©Í̸ Ýđ¹2ª¸ÝB˾àßϸĔÍÌ{¶¾ÂÝàß]ÚÄ»¾ã³Þ׿İ×į(/ÏRoâ ÁßkRu}ÊЯ½ÏLÏÐ=ÉÐ×ÝÍ´ÚÏÏ¯Û¸Í DNA x"âíĂďøÁß/ ¹0*ÁßÏÊÐÍ´¸ĔÍ̯×Å×ů(/¹ÌÏܵοÉWh DNA âȼßϸĔ® Ë´µO¸ÝÏ'´Î4¿ÉЯ2¿É´»Ôº½Ë¹Ä»¾ã³ßËEÀÄLÊÁ° Probing Transcription Factor Dynamics at the Single-Molecule Level in a Living Cell J. Elf, G-W. Li, and X. S. Xie Science 316, 1191-1194 (2007). ¬ (/Ïx"íæøÏȼNΣ¿ÉЯÎv ¿ÄLâÐÀÙ˿ɯ1D Ë 3D diffusion Ïw"ÂÊ³ß ½Ë¹m&¾àÉ´×Á¹¯ÃÏ DNA ÓÏ`fhx"ËH JËâu}ÊS¿ÄЯ½ÏL¹ÐÀÙÉÅËC ´ ×Á °½ Ï L ÊÐ ¯ Ĉêø ď ð ĉÿ ċ ö í ďĐ LacIđ Ë VenusĐÎgÁß« óčýêđËÏ"óč ýê¯LacI-Venus Ïga ¹TÙÉ6Í»Đ2-4 /đÍ ßܵοÄ+Q⿯LacI-Venus Ï+Ê Ïºâ/ċĀĊÊôæċêøÎS¿É´×Á°| ݹ LacI-Venus Ï`fh DNA x"®ÏIWË¿É´ßÏ Ð¯HJ¿Î»´®Ë´µ`A¸Ý?Ýàß ÊÁ°Á ÍáƯ¡P¢Đ1 secđ§Î¯ ðĂöø¹Ýàß ¸Ë´µ½Ë¯³ß´Ð¯1 msec ÏċďîďýĊð^5Î ÜÇÉS¾àÄ ¹1P¢>Ï3η´É#À zÎS¾à߸¯Ë´µ]ÊÁ°)ēÊЯLacI Îx" )ē¬ +ÊÏ LacI-Venus Ïx"˦ÏS ĐLÜÞGsđ°)Ð IPTG [Đ-đ Ë[ 40 n>Đ!đ°[ÎÐêĉäÍðĂöø¹ Ýàß¹¯[>ÎÐçāċďóď¸Ý¦¿ Ä/¹§ÎHJÁßÄÙ¯ ¹ Î :¹ÇÉ´É´ß°)Ð IPTG p"ÎÜß IPTG Ï8Đ-đË8Ē>Đ!đ°x" ¹Ýàß° ¿¯ÃÏçāċďóďDNA ¸ÝϦâgÁß_Ê³ß IPTGĐæòÿČþĊ--D-õçèĈêøþĈüï ùđâd¿É´×Á°ÁÍáƯIPTG [ÎÜÇÉ LacI-Venus ¹ DNA ¸Ý¦ÁßV/⯠ðĂö øÏY.ÎÜÇÉ3¿Đ)ēđ¯<ºy´É¯IPTG p"Ï[ÎÜßðĂöøaĐ)ēđÏéû÷å êð¸Ý¯`fhx"ÎÁßP¢âq¿É´×Á°N¯§P¢0hÍðĂöøíæñÏ:¹Þ¯ ³ß´Ð¯1P¢¢¥ÏċďîďýĊð^5ÎÜß ðĂöøzÏo¦¸Ý¯¨`f DNA Ó Ïx"P¢Û¯HJ1KÚq¿É´×Á°~ϤeÍ̸ݯvivo ÊÐqʺʹýĈąďóď Ú³ßÚÏϯcºÉ´ß+ÊÏóčýêĐÕÖđ/Ïôæúăêðâ¯ga â\Ý¿¯×į §P¢ârÁßË´µ7,ÎÜÇɯÎSĎ1 ʺɴßÏЯ¨9Î$Z»EÀ׿İ No.25 (2007 October) 29 A Tunable Genetic Switch Based on RNAi and Repressor Proteins for Regulating Gene Expression in Mammalian Cells T. L. Deans, C. R. Cantor, and J. J. Collins Cell 130, 363-372 (2007). ol¤ synthetic biology £g ^¡ac³®°©¢D£5 ^¡}/;¾ÀÄϳNe© ¾ÀÄÏNe¢¤¯/ £?xH¢¡¯q ®}/£ on off ³n)¢C¯£ ¯L^¡À¶ÃÂ<q¡®©£ wE¤G0£À¶Ã³6.¢iª$ ²¯¢¬\X£ÔÙº³L^ ¢A©^¢¤ ( 3 Lac-Tet-RNAi (LTRi)À¶ à  ³ 3 Synthetic Gene Network ÚwE¬®BfÛ Lac-Tet-RNAi £;h³ÁØÅÏ¢¦ ͺÁÙ³©( 3A £¬¢8¡½¶Æй׷¶ÕÀÚCMVÛË×ÑÙÁÙ¢¬¯ÓºÆÙÀÔ ËÖýÙÚLacIÛ8\X¢ÄÆÓ½¶ºÔØÔËÖýÙÚTetRÛP^ÁØǺxÚ( 3 ¤ EGFPÛ£\X lac ¸ÎÖÙÁÙÚlacOÛ¥£ LacI £j$¢¬A°¯¬¢¡©¢ £ TetR 0)I¢¤EGFP £ 3’UTR ¢@(^¢3~¢2¯¾ÒÙÆ̵ÉØ RNA ÚshRNAÛU6/tetO ;h\X¯¬¢¡®ÔÙºZY°© GFPmRNA ³ rGFP £\X³1¢Ê×ú©F( 3B £¬¢u3 IPTG £S¢ LacI £ ¸ÎÖÙÁÙ£r¢¬P^ EGFP }/£À¶Ã on ¢¡¯Ú%I¢ shRNA £y¤ TetR ¢¬®A°¯ÛiªwE¤IPTG £JV¢¬®À¶Ã onoff £k®z# mIPTG T70^¡vd¯³b©£FR¤*K^¢¤)}/£vd ¢¤&_^}/\X- £9³v¦,$¢¤¢ shRNA ³ts¯<q «¡§¨1¢\X£ on off IPTG ¢¬vd¯U^>©lac ©¤ tet ¸Î×Ø¢¬¯!W;£,$¬®«AL" £;³¯¢¬À¶Ã ©£Á¶ÏÀ¼ÙÕ - ¯£±ÜU¤wE¤{¦°©´Q¢ ¡¯±Synthetic biology £|4¢3}/£\Xvd³¢p¢tet ;hȸÂØٵȿØ`[³iª$²ÚFussenegger £»ÕÙËNucleic Acid Res. 35, e116 (2007)Û¡ O¡;h£iª$²+'°©°³=[¯¢¬ ] 5^¡}/;¾ÀÄÏ£¤¡ :£\4Mª No.25 (2007 October) 30 ( 1 )-,+*,./%#&$! &$&#" #$!&$'01 ]F I% ©Â¿ ½ µ¿Æ ]FI%©Â¿½µ¿ÆÇITCÈz%F-I%~Kt"¥<¢gcz#u WPi:P} £¢{1) j~zLn!a¢8zKSO¥~¤ zO #uWPz0) Kt E¥~{ITC Kt"¥kG¢ zI%9b za¨Ä±À¹Æ"ÇHÈza%4ÇKaÈza?ÇnÈ¥@¢¢{ [1]. adQ¨·ÀªÆ"ÇGÈ@¡z[2]. a¨ÄµÂ¹Æ"ÇSÈ¥^ ¢{ G = –RT ln Ka [1] G = H – T S [2] M\JzH ¥'wTA%¢ z #uWPK$t¥zG%2B?_A%¢| £¢{Ê MicroCal Y ITC gc=RzI%¿Ä®¬Ä»À°Àz££W P¥hG}l5HC¥£{I%¿Ä® [¯«¿¾ÆN¡zG%I%¿Ä® %q-ozl5%t¬Ä»À°ÀI £¢Vl5!D£z,fr¢{Ê Xp¡z¬Ä»À°À¿º¦Áį°À6KÆÀ¶ |¡z°ÀuF-*T + 0 ¢~z°À º§Æ¶¸²«·²µÃÆ«ÇCFBȯ³¼z°Às& ÊÉITC gc=R K¥}¢{gcz CFB vt¥<¡z£¥8u(Z¢z` Kt/ £¢¢{¤|¢#uWPSK¥~z¬Ä»À°À(¢v t¥)¢¡za;zËX~mKt¹Æ«´Æ±¥¢¢{7z K1zG%´Æ±>Kt¹Æ«´Æ±¥¢{ ITC G % ´Æ ± x Ëz3Å3 uWP¥ ITC G%O´Æ±zI%9b¥X{}£G % 25ye}z3ÇI%¿Ä®È¥3 ǬĻÀ°ÀÈ(zÊIU 3 μlzËI No.25 (2007 October) 31 A -10 B Time (min) 0 10 20 30 40 50 60 70 80 90 -10 C Time (min) 0 10 20 30 40 50 60 70 80 90 0.0 cal/sec 0.0 Time (min) 0 10 20 30 40 50 60 70 0.0 -0.2 -0.2 -10 -0.2 -0.4 -0.4 -0.4 -0.6 -0.6 -0.6 kcal/mole of injectant 2 -0.8 0 0 0 -2 -2 -2 -4 -4 Model: OneSites Chi^2 = 13915.2 N 1.657 ±0.00684 K 4.329E6±2.432E5 H -1.212E4±70.47 S -10.28 -6 -8 -10 -12 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Molar Ratio -4 Model: OneSites Chi^2 = 35839.2 N 1.949 ±0.00745 K 2.45E7 ±2.972E6 H -1.296E4±84.28 S -9.674 -6 -8 -10 -12 -14 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Molar Ratio -6 -8 -10 Model: OneSites Chi^2 = 18575.9 N 1.873 ±0.00546 K 1.359E8±2.793E7 H -1.031E4±58.95 S 2.633 -12 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Molar Ratio ÄÃITC I ' ±À ® ÁÂP±À®w ÁÂP±À® Origin µ²J'=_ 5yµ¢¯°¢¿¥M &r [z Tt 13 μl J{zÄP±À®y<sl+v7J y7^}RMeI zJ ''<s]p1ÁÄ!ÆÂyCFB ¬¾6yAJ' a}}yI'? @fz1inyI'3dh :ry^H $%yCFB 0.2 μcal/sec Y-3dz>9J'<y ¦¿·½«½7rJ 7rD r% yJ RM eI zJ'oy¦¿·½«½ ^c"Áµ¼À7r H*ÂyJ1RMr) |z> \SyJh:,qMeI zÄWJ'=_ 2yJ'>\ Åà c ITC J ' =_ Mtot: J'«½h:K-, Xtot: ¨¼ ¿©h:K-ÁMicroCal ITC »À§À ¹³º¡½yXg 2km Cu~7ry¦¿·½«½7r^DÁn 2.5 Y-}z ıÀ®LÁxÂyRM´À¤ ZyJ7r 1 mol {Mr y ly J 7r¦¿·½«½{7r( x l{z±À®L (y1:1 ^ 4'y£À¶µ¢¯°¢¿¥2¸ª²µ¢¯²yÄj_z ¸ª²µ¢¯² y l#8^H ~y ¸ª²µ¢¯²0Oy^'9ÁKaÂ^ DÁnÂEzÅy^. h:K-Q!|J'=_0O b |z KaMtotnÁMtot J'«½h:K-Â'` c yM&rF' y1 1000 {3d{y^'9 102 < Ka < 109 M-1 Y-U/zN.|^ |yH n BVF'yKa ;GF'3d{z!yW No.25 (2007 October) 32 Ca/äøöòíöúûDifferential Scanning Calorimetry: DSCüâz»Îµ?7Ô&Ð&JÔ t:;PÔCâzÆÎ Ka âh;ÈàZiܵITC âz»Îµ&78.Ïn;ÈàZiÒÑÀ0 )Åáλà¶Ô<ÐÆεmajor histocompatibility complex class II ûMHC IIüÐñðêîÐÔ& Ôݼӵñðêî&À MHC éùïæÊÔÛÔÔd¥ITÓ5ÁÂ>ƵMHC !xÏÔ À,°Ò1&ÒÑÓÕvÓ\ϵ·Ôñðêîâ MHC Ó&ÅÉËwSÏ DSC n;⻵%ñ ðêîÐ Ô &Ô GÅ â Èà ÄÐÀ ÏÁà ¶ 2) ÙË J Ô & 7 8. ÏÔ ITC n ; iÕ ¸displacement ITC¹ÐÛ*ÖáµHIV-I ðøëãúèÓ?Èà®=ÔåóõæéöèúçôùÒÑÔ<À W4Â0)Åáλà¶3) Time (min) ITC n ; ] Ôb A-10 ´ ¢Ôݼӵn;YÔu«ºË 0.0 4ÂÔY«âMÐÈà¶ÐÆε 20 30 40 50 Time (min) 60 70 80 90 B -10 0 10 20 30 40 50 60 70 80 90 0.0 cal/sec ÀAÅ»1&µ}?|Ó 10 cal/sec ßÔt«3 0 -0.5 -0.5 -1.0 âKàËÚÓz»ËUqFÕµ-ÿA Ï 3 μM ϺàÔÓ?Ƶ-ÿB ÏÕÊ Ô 10 âÆε'ìúéâKλචJÔݼÓt«3 ÔAÅ»} zÓ¾»ÎÕµqFû½Ö 3 μM Ï n;âÍË1&üÏÕt«3 ÀcÚ ÎAŵÊáÌÃÔ<³`¿ÞÕ ¸&ÆÒ»¹ÐÈଦÍËâ@ -1.0 1 -1.5 kcal/mole of injectant ITC ìúéâ-ÿÓȶ4) ÄÔìúé kcal/mole of injectant 'ÇU"âþ²ÔUÓpÆË 0 0 -4 Model: OneSites Chi^2 = 26930.9 N 1.976 ±0.00521 K 1.183E8±1.348E7 H -1.665E4±80.10 S -18.91 -8 -12 -16 -1 Model: OneSites Chi^2 = 5495.66 N 1.955 ±0.0662 K 5.636E4±7368 H -3842 ±182.4 S 8.848 -2 -3 -4 0 1 2 3 4 5 6 0 1 Molar Ratio 2 3 4 5 6 Molar Ratio -ÿý H À{ Òà ITC n; ì úé A: H = –16.7 kcal/mol, B: H = –3.8 kcal/mol QáÀºàÔϵjRâÈචÙËnÆË»Y'2Ô7¬}zÓ¼t«ÓµÔ+ÓÝàt«ÀªÒßµ¬¦ÍË ©â@ÂQáۺලÖYÓ Ca2+Ð EDTA À(Ùáà1&ÒÑÕµHsÄÔå÷úí#NÓ¼t «3 ÀnÅáà¶ÙËp;ÈàÐÅáàÔo6ÛµYâ£_ÈàÒÑÆεTâ^àÌÃ' Ç]ÓÈØÁϺà¶vÓ DMSO ÒÑÔ\eo6âB«ÏÛ¼1&ÓÕµLÔjRÀMϺචy7¬}zÓ¼t«3 Át«3 ÕcÚÎAÅ»ËÚµo6Ôl&tÜD©tÒÑÓÝßµnÈØ À½ÒÂÒàQáۺචo6Ókâz»à1&ÓÕµkÐY¬ÏÔðøíùVÓ¼t«3 zÓ¼t«3 ÔX 5) Àµ7¬} ÓÅáà$PÀºßµÄáâO±Ó¾ÂMÀºà¶Õ Fukada & Takahashi Ó¡ÅáλàÀµkÔ²ÓÝÍÎÛµÄÔðøíù¯Ó¼t«3 Õ{Òà¶n ÆË»7¬}zÔt9«â^àÌÃf~ÓgÚË»1&ÓÕµðøíù¯Ó¼t«3 ÀAÅ»kâ§×ÄÐܵþ² ÔkÏÔ ITC n;â¼ÒÑÔ?NÀMÐÒචÊÔµ7¬}zÓÅáàQáÔºàt«3 1&ÓÕ6#NÓ¼t«3 ÐÆεy7Ô3Ptܵ¨ ÒÑÔ À½Þáà¶ÓÆÎÕµvÓmFÜ pH â3½În;â¼1 &µÊÔ]ϵBÒÂÐÛn;[¬û¤Eþ[¬FüÓYÔ3PÒÑÀ ÄÞÒ»ÄÐâµDSC Ü n;ÒÑâz»Î~ÆξÂMÀºà¶6) ÙËJÓÆÎÛµITC n;[¬Ó Äà6# NÓ¼t«3 Àµ&Ó¼t«3 Ó?ÆÎrÏÁàFÐÒà]ûpH ÒÑüâbÈàM No.25 (2007 October) 33 ´®Ö4) ITC ã ñ â ³ÔI Ô × Ök < ƾ Ê © to¼Ö:Éus¼ÖƬCÊÅˬ&ɯd&ÒÚÜï&´:¡ÉFNº ׬¾Ê_¬&ÊH ËÊÆÈÖV¬:ÊpDÉus¼ÖƬ&ɯ¬6¶ÊÅË pD´Pº×ֿЬ&ÊS ÑÊÆÈÖ[2]E³ÔÑWÔ³ÈӰɬCÊn:¡t oɲ¯ÄˬH ÆS ´tÉ compensate ¼Ö'µÉµ¬äñâíÅËÊG Ù±Ö¸ÆÉÈÖ ±ÌQ!ðQ¡toÊ6¶Ë¬ÊH ÆS Ùw¼»³»/øB Éw»¿ÅˬÊH Å®Ö ÑÊʬS ´bÊÆÈÖÏ¿ÉÓÁÄËbÊH Ùw¼:¡toÑ1*º×įָ¸Å ±È·×ÌÈÔȯ¸ÆˬITC ÅIÔ×Ök< ´¬"KÊk 4 Ùh¼ÖÑÊŮլu s¼Ö:¡to5ÉѬ±ÌdÒfÊ@Ñ º×¿k< Ù±ÖƯ°jÅ® Ö¼ÈØÀ¬±Ìn:ÊrdL¦É®Ö&d´¬n:¡toɯd+¼ÖƬ ¸ÊdÊ@ËbÊH¬S É"Xº×Ö¸ÆÆÈÖ YÊêáäàæëvzÅˬâïçÞÊ`³ÔaÙm¼Ö°±Å¬âïçÞÊpDÊ .¨W´¨Å®Õ¬ITC ÅIÔ×Ö&ÛïäîèñÊÑÈ÷ɮÖFrederick Ôˬ¹¶[¬É ITC h=Æ NMR ÉÓÖ+Z¡h=_É0õ¬ÊÛïäîèñ4 &É°âïçÞÊ`Ûïäîèñ4 ´¬¶t¢¼Ö¸ÆÙ1*»Ä¯Ö Ƭ 7) gD;LÙWÔ³ÉŵÖ/ùÉˬ®ÖQ!ðQ¡t oÊgD;LÙw¼´¬CÊn:¡t oÊÅˬ¸ÊÓ°ÉH¬S ÆÑÉgD;LÙw¼V¬ ˲¯É compensate »Ä¬G ËÍÎ=ÊÙw ¼Ï¿ÈM1ƻĬH ÊgD;L³Ô¬&Êc k4 òCp óÙe=¼Ö¸Æ´ÅµÖ¸ÊCp ˬn :Ê¥¦yòaccessible surface areaú:¦Éd: ÙRº½Ä¬¦Ù¶Ïȶ´»¿Æµ¬d:ÊJ´ S¶¦Ê¦yóÊ&HÅÊ4 Æ t¢¼Ö¸Æ´¬ TÊßíñé³Ô1*º×įÖDNA &âïçÞÊ Åˬ&É°&5ÅÊ{`4 Ùh»¬ ¸×´>£Ê{`^_ÆѶ¼Ö¸Æ´wº Thermodynamic Parameter . (kcal/mol) © ITC h=Ù¬qÈÖgDÅ°¸ÆŬ&Ê%k< Ê 0 -5 -10 -15 -20 15 20 25 30 35 40 o Temperature ( C) /ùô %k < ÊgD ;L «: G, ª: H, : TS ×įÖ8) VŸ×ÔÊt¢EÆÊѬlÉ:ÆÊ&Å6¶1*º×įִ¬Ui fÉ)Ï×ÖÚÜïÊd+Ê@ 6) Ò¬&:¡Éd´¢¼Ö2&ÈÇÉCp Ê´}º×Ö 9) $L ÈÇ´1*º×Ä¯Ö © ITC h=ÅIÔ×Ö&cònóÑÈM1Ù±Ö±Ìö:ÊâïçÞÉ:ÊìÝïå´ &¼Ö³Ùe=¼Ö¸Æ´ÅµÖÏ¿QÊÓ°ÉTÊQ!&ÙÑÂ2&òIgG QÅ÷| Oó¬Q!Ê7µºÉÓÕ¬{¤?ÊG§Ù#·Ö³(³Å¬1 Ï¿Ë 2 Ê&còQ!õQóÙw¼¸ ÆÉÈÖ´¬¾ÊÉÑoŵֺÔɱÌ,~mÊj³Ô¼ÖƬ:ÊQ!ÉA»Ä\ ] 2 Ê&cÙw¼ IgG QѬ4L»¿QÊ&´3±ÖƬ¸Ê&c´ 2 ÓÕBº¯Ùw¼Ó° ÉÈÖ/÷A Éw¼QÈÇ˾Ê9Å¬Ê 20%xD´4L»¬Q!Æ&¼ÖÙ8Áį ָƴw-º×Ö No.25 (2007 October) 34 ª§ O%zUPJH' ITC ¥¨O&VZE@j«`%z UPl?xj5s+¢¢xj§¨ITC aJ&y«].¥D' ¨IL1S¨4P£ ¶»³¯´°¬¿ ITC ,GP©§¼À¶ KiD'*p%*¨a/¥§¿²½¸ÀS= K$¢ © ¨NQ¼À¶K¦<utXKeQ.¤R C5« ¨¿µ¾¸ÀS=¨8 BrS);¨ ¨¢ ITC H '3jm:yBrS" VZ}( ¨¥¨!¥§ 7. ITC hb¹À®À¦`©§5dFT©¨>YITC %zU Pl?¡uP«2`±½q¨Jy 4º·²¼¿¯£uP¨ «kH¨¦ w_ 10) <0>Y\A « #{-[#&#&|N&^VZWfv~o 7n6«g¢ c9M 1) Wiseman, T.; Williston, S.; Brandts, J. F.; Lin, L., Anal. Biochem., 1989, 179, 131. 2) Saito, K.; Sarai, A.; Oda, M.; Azuma, T.; Kozono, H., J. Biol. 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