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TopFIND
TopFIND is the Termini oriented protein Function Inferred Database (TopFIND) is an integrated knowledgebase focused on protein termini, their formation by proteases and functional implications. It contains information about the processing and the processing state of proteins and functional implications thereof derived from research literature, contributions by the scientific community and biological databases.
==Background==
Among the most fundamental characteristics of a protein are the N- and C-termini defining the start and end of the polypeptide chain. While genetically encoded, protein termini isoforms are also often generated during translation, following which, termini are highly dynamic, being frequently trimmed at their ends by a large array of exopeptidases. Neo-termini can also be generated by endopeptidases after precise and limited proteolysis, termed processing. Necessary for the maturation of many proteins, processing can also occur afterwards, often resulting in dramatic functional consequences. Aberrant proteolysis can cause wide range of diseases like arthritis or cancer. Hence, proteolytic generation of pleiotrophic stable forms of proteins, the universal susceptibility of proteins to proteolysis, and its irreversibility, distinguishes proteolysis from many highly studied posttranslational modifications.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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