Product Overview Protea's Mass Spec Grade Protein Standards are for use in mass spectrometry, molecular biology, and life science laboratories. These products are high quality standards for use in the calibration of protein analyses by electrospray ionization (ESI) and MALDI mass spectrometry analyses. The Protein Standards also provide an excellent sample for proteomics method development, enzymatic digestion studies, and characterization of LC-MS analytical systems. For quality assurance and standardization purposes, each standard protein is provided with a high-resolution mass spectrum of the protein. Features and Specifications Features: Certified Mass Spec Grade Wide range of molecular weights available Lyophilized for longer storage stability and easy reconstitution in sample buffers Research Applications: Calibration and standardization of protein analysis by ESI- and MALDI-MS Enzymatic digestion and characterization of LC-MS systems Molecular weight markers for SDS-PAGE gels Specifications: Source: equine heart Protein Molecular Weight (Da): 12360 SwissProt Accession Number: P00004 Protein Sequence: GDVEKGKKIFVQKCAQCHTVEKGGKHKTGPNLHGLFG RKTGQAPGFTYTDANKNKGITWKEETLMEYLENPKKY IPGTKMIFAGIKKKTEREDLIAYLKKATNE