Description_x000D_ Application_x000D_ Myoglobin from equine skeletal muscle has been used to induce acute kidney injury (AKI) in mice. It has also been used as a standard for top down mass spectrometry._x000D_ Myoglobin is used as a molecular weight marker and a standard for mass spectroscopy and X-ray crystallography.Myoglobin from equine skeletal muscle was used in a study to test experimental protein mixture for validating tandem mass spectral analysis._x000D_ Packaging_x000D_ 100 mg in poly bottle_x000D_ Biochem/physiol Actions_x000D_ Myoglobin from horse skeletal muscle is a single chain heme protein containing 153 amino acid residues. It possesses no disulfide bridges or free -SH groups. Myoglobin contains 8 variously sized right-handed helical regions, joined by non-ordered or random coil regions._x000D_ Myoglobin is critical to skeletal muscle O2 supply at near-maximum oxygen demand, and prevents anoxia by maintaining PO2 above levels needed to support mitochondrial function._x000D_ Myoglobin is critical to skeletal muscle O2 supply at near-maximum oxygen demand, and prevents anoxia by maintaining PO2 above levels needed to support mitochondrial function.