ISCU Antibody – Rabbit Polyclonal

This gene encodes a component of the iron-sulfur (Fe-S) cluster scaffold. Fe-S clusters are cofactors that play a role in the function of a diverse set of enzymes, including those that regulate metabolism, iron homeostasis, and oxidative stress response. Alternative splicing results in transcript variants encoding different protein isoforms that localize either to the cytosol or to the mitochondrion. Mutations in this gene have been found in patients with hereditary myopathy with lactic acidosis. A disease-associated mutation in an intron may activate a cryptic splice site, resulting in the production of a splice variant encoding a putatively non-functional protein. A pseudogene of this gene is present on chromosome 1. [provided by RefSeq, Feb 2016]

ISCU: Involved in the assembly or repair of the [Fe-S] clusters present in iron-sulfur proteins. Binds iron. Defects in ISCU are the cause of myopathy with exercise intolerance Swedish type (MEIS); also known as myopathy with deficiency of succinate dehydrogenase and aconitase or myoglobinuria due to abnormal glycolysis or hereditary myopathy with lactic acidosis (HML). This autosomal recessive metabolic disease is characterized by lifelong severe exercise intolerance, in which minor exertion causes fatigue of active muscles, shortness of breath, and cardiac palpitations in association with lactic acidosis. The biochemical phenotype is characterized by a deficiency in mitochondrial iron-sulfur proteins and impaired muscle oxidative metabolism. Belongs to the NifU family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Mitochondrial

Chromosomal Location of Human Ortholog: 12q24.1

Cellular Component: mitochondrion; mitochondrial matrix; cytoplasm; cytosol; nucleus

Molecular Function: protein binding; iron ion binding; iron-sulfur cluster binding; protein complex scaffold

Biological Process: iron-sulfur cluster assembly; nitrogen fixation

Disease: Myopathy With Lactic Acidosis, Hereditary