Recombinant protein corresponding to Ala6-Gln275 of mouse MTAP, expressed in E. coli.
Methylthioadenosine phosphorylase (EC 24.2.28) plays a major role in polyamine metabolism and is important for the salvage of both adenine and methionine. For example, as much as 97% of the endogenous adenine produced by human lymphoblasts in culture is formed by catabolism of methylthioadenosine (MeSAdo) by the phosphorylase. MeSAdo, a by-product of the synthesis of the polyamines spermidine and spermine, potently inhibits polyamine aminopropyltransferase reactions if not removed by the above phosphorylase reaction. The encoded enzyme is deficient in many cancers because this gene and the tumor suppressor p16 gene are co-deleted. Multiple alternatively spliced transcript variants have been described for this gene, but their full-length natures remain unknown. Applications: Suitable for use in ELISA, Western Blot, Immunohistochemistry, Immunocytochemistry. Other applications not tested. Recommended Dilution: ELISA: 1:100-1:5000 Western Blot: 1:50-400 Immunohistochemistry (frozen): 1:50-500 Immunohistochemistry (paraffin): 1:10-100 Immunocytochemistry: 1:50-500 Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.