Abstract: Provided are modified arginine deiminase (ADI) proteins, including ADI proteins that comprise one or more substitutions which increase expression in bacteria as insoluble and refoldable inclusion bodies. Also provided are methods of producing the modified ADI proteins, compositions comprising the ADI proteins, and related methods of treating arginine-dependent and related diseases such as cancer.

Abstract: Provided are conjugates of an arginine deiminase (ADI) and a Tumor Necrosis Factor (TNF) superfamily ligand, and related compositions and methods of use thereof. Also provided are conjugates of a hexameric polypeptide and a trimeric polypeptide, conjugates of a first and second trimeric polypeptide, and related compositions and methods of use thereof.

Abstract: The present invention provides synthesis, pharmaceutically acceptable formulations and uses of compounds in accordance with Formula (I), or a stereoisomer, a tautomer or a pharmaceutically acceptable salt thereof. For Formula (I) compounds R1, R2, X1, Y1 and n are as defined in the specification. The inventive Formula (I) compounds are inhibitors of the PD-1/PD-L1 protein/protein binding or functional interaction and find utility in any number of therapeutic applications, including but not limited to treatment of proliferative disorders such as cancer and infectious diseases.