NOD-genetic background neutropenic humanized mouse model preparation method
A neutrophil and mouse model technology, applied in the field of genetic engineering and genetic modification, to achieve highly original effects
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[0039] The preparation method of the humanized mouse model of neutrophil deficiency in the NOD genetic background in this embodiment comprises the following steps:
[0040] 1. Determine the three specific target sites Gfi1-sgRNA1, Gfi1-sgRNA2, and Gfi1-sgRNA3 of the gene Gfi1 (Gene ID: 103170) to be knocked out in NOD mice.
[0041]Find the mouse Gfi1 gene DNA sequence in the mouse genome database ensembl (http: / / asia.ensembl.org), and then use the online design software CRISPOR (http: / / crispor.tefor.net / crispor.cgi) to determine the Three specific sites were selected in exon6 (exon ID: ENSMUSE00001072804) of the mouse Gfi1 gene as the target sequence of the sgRNA. The three target sequences are:
[0042] Gfi1-sgRNA1: 5'-AGCTTTGACTGTAAGATCTG TGG-3' (as shown in SEQ ID NO.1);
[0043] Gfi1-sgRNA2: 5'-GTACTGACAGGGATAGGGCC GGG-3' (as shown in SEQ ID NO.2);
[0044] Gfi1-sgRNA3: 5'-TGCTCATTCACTCGGACACC CGG-3' (as shown in SEQ ID NO.3).
[0045] 2. Obtain 3 sgRNA mRNAs.
[0046...
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