restriction signal

Restriction enzyme assay, PCR and sequencing confirmed that the TK gene was obtained successfully. Only one Kpn ⅰ site and a transcription termination signal TTTTT N ( T) T were found in the gene.

酶切鉴定、PCR鉴定和测序结果表明，成功获得了TK基因，获得的TK基因内存在一个KpnⅠ酶切位点和编码区的早期转录终止信号TTTTTN（T）T。

The result of sequence analysis and restriction map shows that an open reading frame of carp growth hormone gene contains 630 base pairs which code for a polypeptide of 210 amino acids including 22 amino acids of the signal peptide and 188 amino acids of the mature growth hormone.

序列分析和限制酶切图谱表明所克隆的鲤鱼生长激素基因的开放读框含有630bp，编码210个氨基酸，其中含有22个氨基酸的信号肽和188个氨基酸的成熟GH序列。

According to the higher PAPR in the OFDM system, by analyzing the frequency distribution of constellation points after clipping, the code restriction technique is adopted to combat the effect of clipping the OFDM signal in the digital part of the transmitter.

针对正交频分复用系统中峰均功率比过高的问题，分析了限幅后复频域星座点分布图，提出一种消除数字传输中限幅噪声的简单方法，即码元约束技术。