跳转到内容

多重序列比對

维基百科,自由的百科全书
電腦程式ClustalW,以多個生物個體的酸性核醣體蛋白P0(acidic ribosomal protein P0;L10E)的前90個位置所作的多重序列比對。

多重序列比對Multiple sequence alignmentMSA)是對三個以上的生物學序列(biological sequence),如蛋白質序列、DNA序列或RNA序列所作的序列比對。一般來說,是輸入一組假定擁有演化關係的序列。從MSA的結果可推導出序列的同源性,而種系發生關係也可引導出這些序列共同的演化始祖。如右圖般的視覺化敘述可描繪出各種突變事件,例如點突變的單格變化,或是如刪除突變與插入突變,可使各個序列之間產生鴻溝。MSA常用來研究序列的保守性,或是蛋白質結構域三級結構二級結構,甚至是個別的氨基酸核苷酸

參見

[编辑]

外部連結

[编辑]

相關文獻

[编辑]
  • Duret, L.; S. Abdeddaim. Multiple alignment for structural functional or phylogenetic analyses of homologous sequences. D. Higgins and W. Taylor (编). Bioinformatics sequence structure and databanks. Oxford: Oxford University Press. 2000. 
  • Notredame, C. Recent progresses in multiple sequence alignment: a survey. Pharmacogenomics. 2002, 31 (1): 131 –– 144. 
  • Thompson, J. D.; F. Plewniak and O. Poch. A comprehensive comparison of multiple sequence alignment programs. Nucleic Acids Research. 1999, 27 (13): 12682––2690. 
  • Wallace, I.M.; Blackshields G and Higgins DG. Multiple sequence alignments. Curr Opin Struct Biol. 2005, 15 (3): 261–6. 
pFad - Phonifier reborn

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.

Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.


Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy