Compositions comprising Sel1-derived peptides and methods of treatment/prevention of excess oxalate levels and associated conditions/diseases therewith

Provided herein are compositions comprising Sel1-derived peptides thereof, and method of use thereof for the treatment/prevention excess oxalate levels and conditions and diseases related thereto. In particular, peptides comprise Sel-like repeat (SLR) domains and/or tetratricopeptide (TPR) domains and may be linked together or with other peptides or polypeptides to treat/prevent diseases/conditions related to excess oxalate levels, such as hyperoxaluria and/or hyperoxalemia.