例句與用法

1. The nucleotide ( nt ) sequence of the insert in phz1754 is 2299bps in size . computer assisted analysis of the sequence revealed an open reading frame ( orf ) with a g + c content of 70 . 3 % that would encode a protein of 552 amino acids ( aa ) . the nt seque nce comparision revealed that the orf in the sequenced region exhibits 85 % dna sequence homology with the cholesterol oxidase gene choa of streptomyces sp
   對phz1754進行外切核酸酶( exonuclease ， exo )順序缺失，獲得單向長度漸減重疊的系列突變體，核苷酸序列測定顯示出該ecor - sal片段的精確大小為2299bps ， frameplot程序分析揭示出該區(qū)域一個完整的開放閱讀框( orf )的存在，其大小為1656bps ， g + c含量為70 . 3 ，編碼552個氨基酸，利用blastsearch程序?qū)rf的核苷酸序列及推導(dǎo)的氨基酸序列與因特網(wǎng)上基因及蛋白質(zhì)數(shù)據(jù)庫進行綜合比較，發(fā)現(xiàn)無論在核苷酸水平還是在蛋白水平上，該orf均與膽固醇氧化酶表現(xiàn)出同源性，而且與鏈霉菌膽固醇氧化酶同源性最高，說明該orf編碼膽固醇氧化酶基因。
2. Now there are 5 constructive methods have been found , through which all of the complementary sequences whose length is 2 ' 10s26 " can be constructed . it was proved in this paper that it can determine which equivalence class is constructible or not by the feature seque nce . based on the reseach and computer we have got all the equivalence complementary sequence class with length of not more than 40 , and found a new complementary sequences kernel with length of 20
   經(jīng)分析發(fā)現(xiàn)當(dāng)序列長度n 4時，可以根據(jù)特征序列來判斷互補序列等價類空間大小，這對實際應(yīng)用中互補序列的選取具有一定意義；此外本文證明了互補序列等價類的唯一性，即不同的等價類不能包含相同的序列；對互補序列的各種構(gòu)造方法進行分析，發(fā)現(xiàn)通過每種構(gòu)造方法構(gòu)造出的互補序列其特征序列均具有某種特性，通過論證得出可以通過特征序列來判斷互補序列是否是可構(gòu)造的以及可以由哪種構(gòu)造方法構(gòu)造，并通過特征序列證實了長度為20的互補序列的核的存在性。