Purity: > 90% by SDS - PAGE Format: Liquid. In Phosphate Buffered Saline (pH 7.4) containing 20% glycerol, 1mM DTT.. HMGCL, also known as hydroxymethylglutaryl-CoA lyase, mitochondrial isoform 1, is a mitochondrial matrix protein that belongs to the HMG-CoA lyase family. It is a mitochondrial enzyme that catalyzes the final step of leucine degradation and plays a key role in ketone body formation. Multiple isoforms of the proteins are known due to alternative splicing. The major isoform (isoform 1) is most highly expressed in the liver whereas isoform 2 is found in energy-demanding tissues including the brain, heart, and skeletal muscle. Recombinant human HMGCL protein, fused to His-tag at C-terminus, was expressed in insect cell and purified by using conventional chromatography techniques.