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TRUNCATED CRISPR-CAS PROTEINS FOR DNA TARGETING

机译:截短的CRISPR-CAS蛋白用于DNA靶向

摘要

The present invention relates to a polypeptide comprising at least one at least one deletion selected from the group consisting of ΔHNH (Δ775-909), ARuvCIII-b (Δ1002-1074), AREC1-a (Δ510-655), AREC1-b (Δ525-587), AREC1-c (Δ662-710), AREC2 (Δ180-308), AREC2-a (Δ212-244), AREC2-b (Δ244-276), AREC2-c (Δ276-308), AREC2-d (Δ199-283), AREC2-e (Δ198-257), AREC2-f (Δ235-286), AREC2-g (Δ217-266), AREC3 (Δ498-712) and combinations thereof, wherein the position numbering is in accordance with SEQ ID NO: 1 encoding for S. pyogenes Cas9, and wherein the polypeptide has CRISPR-Cas DNA-binding activity. The polypeptide may further comprises a missense mutations selected from G12R, T13K, T13R, N14K, N497K, T657K, T657R, N767K, T770K, T770R, Q920K, Q920R, S1109R, D1135K, D1135R, S1338R and combinations thereof. Also claimed are nucleic acid molecules encoding for said polypeptides, compositions and method of site-directed engineering of a target DNA thereof.
机译:本发明涉及包含选自以下的至少一种至少一种缺失的多肽:ΔHNH(Δ775-909),ARuvCIII-b(Δ1002-1074),AREC1-a(Δ510-655),AREC1-b( Δ525-587),AREC1-c(Δ662-710),AREC2(Δ180-308),AREC2-a(Δ212-244),AREC2-b(Δ244-276),AREC2-c(Δ276-308),AREC2- d(Δ199-283),AREC2-e(Δ198-257),AREC2-f(Δ235-286),AREC2-g(Δ217-266),AREC3(Δ498-712)及其组合,其中位置编号在根据编码化脓性链球菌Cas9的SEQ ID NO:1,其中所述多肽具有CRISPR-Cas DNA结合活性。该多肽可进一步包含选自G12R,T13K,T13R,N14K,N497K,T657K,T657R,N767K,T770K,T770R,Q920K,Q920R,S1109R,D1135K,D1135R,S1338R及其组合的错义突变。还要求保护的是编码所述多肽的核酸分子,其靶DNA的定点工程组合物和方法。

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