CPC C12N 15/8213 (2013.01) [C12N 15/8216 (2013.01)] | 14 Claims |
1. A recombinant DNA construct comprising a 7SL promoter; operably linked to:
(i) a sequence encoding a single-guide RNA (sgRNA), or
(ii) a sequence specifying a non-coding RNA;
and wherein the sequence of said 7SL promotor comprises SEQ ID NO:174; or a fragment thereof, wherein the fragment is at least 140 bp in length, wherein the 7SL promotor or fragment thereof and the sgRNA or non-coding RNA come from different sources.
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