Massachusetts Institute of Technology

The Broad Institute, Inc.

Tufts College

Sourav Choudhury

Feng Zhang

David Arthur Scott

Winston X Yan

Matthias Heidenreich

Qiaobing Xu

Winston Xia Yan

The disclosure includes non-naturally occurring or engineered CRISPR systems and proteins, associated with a delivery system comprising a virus component and a lipid component. The disclosure includes CRISPR proteins associated with capsid proteins, e.g., AAV VP1VP2, and/or VP3, on the surface of or internal to the AAV, along with compositions, systems and complexes involving the AAV-CRISPR protein, nucleic acid molecules and vectors encoding the same, deliver}-systems, and uses therefor.

Delivery of large payloads

In one aspect, embodiments disclosed herein are directed to engineered CRISPRCas effector proteins that comprise at least one modification compared to an unmodified CRISPR-Cas effector protein that enhances binding of the of the CRISPR complex to the binding site and/or alters editing preference as compared to wild type. In certain example embodiments, the CRISPR-Cas effector protein is a Type II effector protein. In certain other example embodiments, the Type V effector protein is Cas9 or an orthologs or engineered variant thereof. Example Cas9 proteins suitable for use in the embodiments disclosed herein are discussed in further detail below.

CRISPR enzymes and systems

Embodiments disclosed herein are directed to engineered CRISPR-Cas effector proteins that comprise at least one modification compared to an unmodified CRISPR-Cas effector protein that enhances binding of the of the CRISPR complex to the binding site and/or alters editing preference as compared to wild type. In certain example embodiments, the CRISPR-Cas effector protein is a Type V effector protein. In certain other example embodiments, the Type V effector protein is Cpf1. Embodiments disclosed herein are directed to viral vectors for delivery of CRISPR-Cas effector proteins, including Cpf1. In certain example embodiments, the vectors are designed so as to allow packaging of the CRISPR-Cas effector protein within a single vector. There is also an increased interest in the design of compact promoters for packing and thus expressing larger transgenes for targeted delivery and tissue-specificity. Thus, in another aspect certain embodiments disclosed herein are directed to delivery vectors, constructs, and methods of delivering larger genes for systemic delivery.

Crispr enzymes and systems

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Cambridge, MA, United States of America

Sourav Choudhury