Abstract: The present invention relates to methods of use of engineered split inteins, as well as their combination with degradation signals (destabilizing domains, degrons) to reconstitute large genes for gene therapy.

Abstract: Disclosed herein are split inteins, fused proteins of split inteins, and methods of using split inteins to efficiently purify and modify proteins of interest.

Abstract: Disclosed herein are split inteins, fused proteins of split inteins, and methods of using split inteins to efficiently purify and modify proteins of interest.

Abstract: Disclosed herein are split inteins, fused proteins of split inteins, and methods of using split inteins to efficiently purify and modify proteins of interest.

Abstract: Disclosed herein are split inteins, fused proteins of split inteins, and methods of using split inteins to efficiently purify and modify proteins of interest.

Abstract: Disclosed herein are split inteins, fused proteins of split inteins, and methods of using split inteins to efficiently purify and modify proteins of interest.

Abstract: Disclosed herein are split inteins, fused proteins of split inteins, and methods of using split inteins to efficiently purify and modify proteins of interest. Thus, provided herein are fusion proteins of a polypeptide and a split intein N-fragment, or variant thereof, as described below in greater detail. Also provided are complexes of the fusion protein and a split intein C-fragment or variant thereof as described in detail below. The complex of the fusion protein and C-fragment or variant thereof can be via a covalent interaction between the fusion protein and C-fragment or variant or via a noncovalent interaction (e.g., ionic, H-bonding, and/or van der Waals interaction). Further provided herein are split intein C-fragments or variants thereof.