鏈�枃缁廇I鏂板獟浣撻噺瀛愪綅锛堝叕浼楀彿ID:QbitAI锛夋巿鏉冭浆杞斤紝杞�浇璇疯仈绯诲嚭澶勩€�
鏈€杩戯紝DeepMind寮€婧怉lphaFold2锛岃�瀛︽湳鍦堝啀涓€娆℃哺鑵句簡銆�
杩欐剰鍛崇潃锛屽�浜庢櫘閫氱爺绌朵汉鍛樿€岃█鏇鹃渶瑕佽姳鍑犲勾鏃堕棿鎵嶈兘鐮磋В鐨勮泲鐧借川缁撴瀯锛岀幇鍦ㄧ敤AlphaFold2鍑犲皬鏃跺氨鑳界畻鍑烘潵Al浜嗭紒
閭ｄ箞锛屽�姝ゅ帀瀹崇殑AlphaFold2绌剁珶濡備綍鍋氬埌鐨勫憿锛�
DeepMind鍥㈤槦宸茬粡灏嗗畠鐨勮�缁嗕俊鎭�湪銆奛ature銆嬩笂鍏�紑鍙戣〃銆�
鐜板湪锛屽氨璁╂垜浠�潵鐪嬬湅AlphaFold2鐨勯瓟娉曟槸鎬庝箞瀹炵幇鐨勫惂銆�
鍗风Н娑堝け浜嗭紝Attention鏉ヤ簡
璁烘枃涓�紝鐮旂┒浜哄憳寮鸿皟AlphaFold2鏄�竴涓�畬鍏ㄤ笉鍚屼簬AlphphaFold鐨勬柊妯″瀷銆�
鐨勭‘锛屽畠浠�娇鐢ㄧ殑妯″瀷妗嗘灦閮戒笉涓€鏍凤紝杩欎篃鏄疉lphaFold2鍑嗙‘鎬ц兘澶熺獊椋炵寷杩涚殑涓昏�鍘熷洜銆�
姝ゅ墠AlphaFold涓�墍鏈夌殑鍗风Н绁炵粡缃戠粶锛岀幇鍦ㄩ兘琚�浛鎹㈡垚浜咥ttention銆�
涓轰粈涔堣�杩欐牱鍋氬憿锛�
鎴戜滑棣栧厛瑕佷簡瑙ｄ竴涓婣lphaFold鐨勫伐浣滃師鐞嗭細
瀹冧富瑕佹槸閫氳繃棰aF勬祴铔嬬櫧璐ㄤ腑姣忓�姘ㄥ熀閰镐箣闂寸殑璺濈�鍒嗗竷锛屼互鍙婅繛鎺ュ畠浠�殑鍖栧�閿�箣闂寸殑瑙掑害锛岀劧鍚庡皢鎵€鏈夋皑鍩洪吀瀵圭殑娴嬮噺缁撴灉姹囨€绘垚2D鐨勮窛绂荤洿鏂瑰浘銆�
鐒跺悗璁╁嵎绉��缁忕綉缁滃�杩欎簺鍥剧墖杩涜�瀛︿範锛屼粠鑰屾瀯寤哄嚭铔嬬櫧璐ㄧ殑3D缁撴瀯銆�
鈻矨lphaFold涓昏�鏋舵瀯
浣嗚繖鏄�竴绉嶄粠灞€閮ㄥ紑濮嬭繘琛岄�娴嬬殑鏂瑰ol紡锛屽緢鏈夊彲鑳戒細蹇界暐铔嬬櫧璐ㄧ粨鏋勪俊鎭�殑闀胯窛绂讳緷璧栨€с€�
鑰孉ttention鐨勭壒鐐瑰垰濂藉彲浠ュ讥琛ヨ繖涓€缂洪櫡锛屽畠鏄�竴绉嶆ā浠夸汉绫绘敞鎰忓姏鐨勭綉缁滄灦鏋勶紝鍙�互鍚屾椂鑱氱劍澶氫釜缁嗚妭閮ㄥ垎銆�
杩欐牱鍙�互浣垮緱妗嗘灦棰勬祴鐨勭粨鏋滄洿鍔犲叏闈€€佸噯纭�€�
鍦–ASP13涓�紝AlphaFold棰勬祴鐨勫噯纭�€ц繕鍙�湁涓嶅埌d260鍒嗐€�
浣嗘槸鍦–ASP14涓瑼lphaFold2灏卞皢鍑嗙‘鎬х洿鎺ユ嫈楂樺埌浜�92.4/100銆�
鍥剧綉缁�+Attention
鍏蜂綋鏉ョ湅锛孉lphaFold2涓昏�鍒╃敤澶氬簭鍒楁瘮瀵癸紙MSA锛夛紝鎶婅泲鐧借川鐨勭粨鏋勫拰鐢熺墿淇℃伅鏁村悎鍒颁簡娣卞害瀛︿範绠楁硶涓�€�
瀹冧富瑕佸寘鎷�袱涓�儴鍒嗭細绁炵粡缃戠粶EvoFormer鍜岀粨鏋勬ā鍧楋紙鍘熺Structure module锛夈€�
鍦‥voFormer涓�紝涓昏�鏄�皢鍥剧綉缁� 锛圙raph networks锛夊拰澶氬簭鍒楁瘮瀵� 锛圡SA锛夌粨鍚堝畬鎴愮粨鏋勯�娴嬨€�
鍥剧綉缁滃彲浠ュ緢濂借〃绀轰簨鐗╀箣闂寸殑鐩稿叧鎬э紝鍦ㄨ繖閲岋紝瀹冨彲浠ュ皢铔嬬櫧璐ㄧ殑鐩稿叧淇℃伅鏋勫缓鍑轰竴涓�浘琛�紝浠ユ�琛ㄧず涓嶅悓姘ㄥ熀閰镐箣闂寸殑璺悊锛濈�銆�
鐮旂┒浜哄憳鐢ˋttention鏈哄埗鏋勫缓鍑轰竴涓�壒娈婄殑鈥滀笁閲嶈嚜娉ㄦ剰鍔涙満鍒讹紙Triangular self-attention锛夆€濓紝鏉ュ�鐞嗚�绠楁皑鍩洪吀涔嬮棿鐨勫叧绯诲浘銆�
鈻充笁閲嶈嚜娉ㄦ剰鍔涙満鍒讹紙Triangular self-attention锛�
鐒跺悗锛屼粬浠�皢杩欎竴姝ュ緱鍒扮殑淇℃伅涓庡�搴忓垪姣斿�缁撳悎銆�
澶氬簭鍒楁氭敞瘮瀵逛富瑕佹槸浣跨浉鍚屾畫鍩虹殑浣嶇偣浣嶄簬鍚屼竴鍒楋紝鏆撮湶鍑轰笉鍚屽簭鍒椾箣闂寸殑鐩镐技閮ㄥ垎锛屼粠鑰屾帹鏂�嚭涓嶅悓铔嬬櫧璐ㄥ湪缁撴瀯鍜屽姛鑳戒笂鐨勭浉浼煎叧绯汇€�
璁＄畻鍑虹殑姘ㄥ熀閰稿叧绯讳笌MSA杩涜�淇℃伅浜ゆ崲锛岃兘鐩存帴鎺ㄧ悊鍑虹┖闂村拰杩涘寲鍏崇郴鐨勯厤瀵硅〃寰併€�
棰勬祴鎵€鏈夊師瀛愮殑3D缁撴瀯
鏋舵瀯鐨勭�浜岄儴鍒嗘槸涓€涓�粨鏋勬ā鍧�鎰忓 锛圫tructure Module锛夛紝瀹冪殑涓昏�宸ヤ綔鏄�皢EvoFormer寰楀埌鐨勪俊鎭�浆鎹�负铔嬬櫧璐ㄧ殑3D缁撴瀯銆�
鈻崇粨鏋勬ā鍧楋紙Structure module锛�
鍦ㄨ繖閲岋紝鐮旂┒浜哄憳鍚屾牱浣跨敤浜咥ttention鏈哄埗锛屽畠鍙�互鍗曠嫭璁＄畻铔嬬櫧璐ㄧ殑鍚勪釜閮ㄥ垎锛岀О涓衡€滀笉鍙樼偣娉ㄦ剰鍔涳紙invariant point att姏鏈ention锛夆€濇満鍒躲€�
瀹冧互鏌愪釜鍘熷瓙涓哄師鐐癸紝鏋勫缓鍑轰竴涓�3D鍙傝€冨満锛屾牴鎹��娴嬩俊鎭�繘琛屾棆杞�拰骞崇Щ锛屽緱鍒颁竴涓�粨鏋勬�鏋躲€�
鈻充笉鍙樼偣娉ㄦ剰鍔涳紙invariant point attention锛�
鐒跺悗Attention鏈哄埗浼氬�鎵€鏈夊師瀛愰兘杩涜�棰勬祴锛屾渶缁堟眹鎬诲緱鍑轰竴涓�珮搴﹀噯纭�殑铔嬬櫧璐ㄧ粨鏋勩€�
姝哄埗ゅ�锛岀爺绌朵汉鍛樿繕寮鸿皟AlphaFold2鏄�竴涓�€滅�鍒扮�鈥濈殑绁炵粡缃戠粶銆�
浠栦滑浼氬弽澶嶆妸鏈€缁堟崯澶卞簲鐢ㄤ簬杈撳嚭缁撴灉锛岀劧鍚庡啀瀵硅緭鍑虹粨鏋滆繘琛岄€掑綊锛屼笉鏂�€艰繎姝ｇ‘缁撴灉銆�
杩欐牱鍋氭棦鑳藉噺灏戦�澶栫殑璁�粌锛岃繕鑳藉ぇ骞呮彁楂橀�娴嬬粨鏋勭殑鍑嗙‘鎬с€�
涓虹牬瑙ｈ泲鐧借川鎶樺彔璋滈�甯︽潵甯屾湜
Alphafold2鐨勫鍙栦嚭鐜帮紝鑳芥洿濂藉湴棰勫垽铔嬬櫧璐ㄤ笌鍒嗗瓙缁撳悎鐨勬�鐜囷紝浠庤€屾瀬澶у湴鍔犻€熸柊鑽�爺鍙戠殑鏁堢巼銆�
姝ゆ�Alphafold2寮€婧愶紝灏嗚繘涓€姝ユ帹鍔ㄧ�瀛︾晫鍓嶈繘銆�
鎹�簡瑙ｏ紝鐩�墠DeepMind宸茬粡涓庣憺澹�殑涓€浜涚爺绌跺洟闃熷悎浣滐紝閫氳繃棰勬祴铔嬬櫧璐ㄧ粨鏋勫紑灞曡嵂鐗╂柟闈㈢殑鐮旂┒銆�
浜嬪疄涓婏紝鐮旂┒Alphafold2棰唬鍗勬祴绋嬪簭鏈�韩锛屼篃涓烘帰绱㈣泲鐧借川缁撴瀯鎶樺彔鍘熺悊甯︽潵浜嗗笇鏈涖€�
鑺濆姞鍝ュぇ瀛︾殑璁＄畻鐢熺墿瀛﹀�Jinbo Xu灏辫〃绀猴細
杩欎簺宸ュ叿鐨勫紑婧愶紝鎰忓懗鐫€绉戝�鐣岃兘澶熷湪姝ゅ熀纭€涓婂紑鍙戝嚭鏇村姞寮哄ぇ鐨勮蒋浠躲€�
璁烘枃鍦板潃锛�
https://www.nature.com/articles/s41586-021-03819-2_refer风Нence.pdf
琛ュ厖鏉愭枡锛�
https://static-content.springer.com/esm/art%3A10.1038%2Fs41586-021-03819-2/MediaObjects/41586_2021_3819_MOESM1_ESM.pdf*