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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ÄÄÇ»ÆÃÀÇ ½ÇÁ¦ ³í¹®Áö (KIISE Transactions on Computing Practices)

Á¤º¸°úÇÐȸ ÄÄÇ»ÆÃÀÇ ½ÇÁ¦ ³í¹®Áö (KIISE Transactions on Computing Practices)

Current Result Document : 52 / 397 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ÅÄ´ý Áú·® ºÐ¼®À» À§ÇÑ µðÄÚÀÌ µ¥ÀÌÅͺ£À̽º »ý¼º ¹æ¹ýÀÇ Áߺ¹¼º °üÁ¡¿¡¼­ÀÇ ¼º´É Æò°¡
¿µ¹®Á¦¸ñ(English Title) Evaluation of the Redundancy in Decoy Database Generation for Tandem Mass Analysis
ÀúÀÚ(Author) ÀÌÈ«¶õ   ·ù´ÜÈÖ   À̱â¿í   Ȳ±Ô¹é   Honglan Li   Duanhui Liu   Kiwook Lee   Kyu-Baek Hwang  
¿ø¹®¼ö·Ïó(Citation) VOL 22 NO. 01 PP. 0056 ~ 0060 (2016. 01)
Çѱ۳»¿ë
(Korean Abstract)
ÅÄ´ý Áú·® ºÐ¼®¿¡¼­´Â ½Å·Úµµ ³ôÀº ÆéŸÀÌµå µ¿Á¤À» À§ÇØ ¸ñÇ¥ µ¥ÀÌÅͺ£À̽ºÀÇ ÂüÁ¶ ´Ü¹éÁú ¼ø¼­¸¦ Àç¹èÄ¡ÇÑ µðÄÚÀÌ µ¥ÀÌÅͺ£À̽º°¡ ÁÖ·Î ÀÌ¿ëµÈ´Ù. ÇÑÆí ¸ñÇ¥ µ¥ÀÌÅͺ£À̽º¿Í µðÄÚÀÌ µ¥ÀÌÅͺ£À̽º »çÀÌ È¤Àº µðÄÚÀÌ µ¥ÀÌÅͺ£À̽º ³»ºÎ¿¡ ¼­¿­ÀÌ µ¿ÀÏÇÑ Áߺ¹ ÆéŸÀ̵尡 Á¸ÀçÇÒ ¼ö ÀÖÀ¸¸ç, ÀÌ´Â ´Ü¹éÁú µ¿Á¤À» ¾î·Æ°Ô ÇÏ´Â ¿äÀÎÀÌ µÈ´Ù. µû¶ó¼­ µðÄÚÀÌ µ¥ÀÌÅͺ£À̽ºÀÇ Áߺ¹¼ºÀ» ÃÖ¼ÒÈ­ÇÏ´Â °ÍÀº Áß¿äÇÑ ¹®Á¦ÀÌ´Ù. º» ³í¹®¿¡¼­´Â µðÄÚÀÌ µ¥ÀÌÅͺ£À̽º »ý¼º¿¡ ³Î¸® »ç¿ëµÇ´Â ÀÇ»ç¼ÅÇÃ(pseudo-shuffling)°ú Àǻ翪¼ø(pseudo-reversing) ¹æ¹ýÀÌ µðÄÚÀÌ µ¥ÀÌÅͺ£À̽ºÀÇ Áߺ¹¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÏ¿´´Ù. ½ÇÇè °á°ú, ¸ñÇ¥ µ¥ÀÌÅͺ£À̽º Å©±â¿Í µ¥ÀÌÅͺ£À̽º »ý¼º ½Ã Çã¿ëµÇ´Â ¡®missed cleavage site¡¯ÀÇ ÃÖ´ë °³¼ö´Â Áߺ¹¼ºÀ» Áõ°¡½ÃÅ´À» È®ÀÎÇÏ¿´´Ù. ¶ÇÇÑ µ¿ÀÏÇÑ Á¶°Ç¿¡¼­´Â Àǻ翪¼ø ¹æ¹ýÀÌ ÀÇ»ç¼ÅÇú¸´Ù Ç×»ó ³·Àº ¼öÁØÀÇ Áߺ¹¼ºÀ» °¡Áö´Â µðÄÚÀÌ µ¥ÀÌÅͺ£À̽º¸¦ »ý¼ºÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
Peptide identification in tandem mass spectrometry is usually done by searching the spectra against target databases consisting of reference protein sequences. To control false discovery rates for high-confidence peptide identification, spectra are also searched against decoy databases constructed by permuting reference protein sequences. In this case, a peptide of the same sequence could be included in both the target and the decoy databases or multiple entries of a same peptide could exist in the decoy database. These phenomena make the protein identification problem complicated. Thus, it is important to minimize the number of such redundant peptides for accurate protein identification. In this regard, we examined two popular methods for decoy database generation: ¡®pseudo-shuffling¡¯ and ¡®pseudo-reversing¡¯. We experimented with target databases of varying sizes and investigated the effect of the maximum number of missed cleavage sites allowed in a peptide (MC), which is one of the parameters for target and decoy database generation. In our experiments, the level of redundancy in decoy databases was proportional to the target database size and the value of MC, due to the increase in the number of short peptides (7 to 10 AA). Moreover, ¡®pseudo-reversing¡¯ always generated decoy databases with lower levels of redundancy compared to ¡®pseudo-shuffling¡¯.
Å°¿öµå(Keyword) ÅÄ´ý Áú·® ºÐ¼®   ÆéŸÀÌµå µ¿Á¤   ´Ü¹éÁú µ¿Á¤   ¸ñÇ¥ µ¥ÀÌÅͺ£À̽º   µðÄÚÀÌ µ¥ÀÌÅͺ£À̽º   Áߺ¹ ÆéŸÀ̵堠 tandem mass spectrometry   peptide identification   protein identification   target databases   decoy databases   redundant peptide  
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