Asfotase alfa (Research-Grade) is a research-grade biosimilar monoclonal antibody targeting Alkaline phosphatase liver/bone/kidney isozyme. Reactivity: Human. Supplied as a liquid in 0.01M PBS pH 7.4. Applications: ELISA, functional assays and in vivo research. Endotoxin: < 10 EU/mg. Purity: >95% purity as determined by SDS-PAGE. For research use only.
Alkaline phosphatase, tissue-nonspecific isozyme (ALPL) is a ~57 kDa protein. Alkaline phosphatase that metabolizes various phosphate compounds and plays a key role in skeletal mineralization and adaptive thermogenesis. Has broad substrate specificity and can hydrolyze a considerable variety of compounds: however, only a few substrates, such as diphosphate (inorganic pyrophosphate; PPi), pyridoxal 5'-phosphate (PLP) and N-phosphocreatine are natural substrates. Plays an essential role in skeletal and dental mineralization via its ability to hydrolyze extracellular diphosphate, a potent mineralization inhibitor, to phosphate: it thereby promotes hydroxyapatite crystal formation and increases inorganic phosphate concentration. Acts in a non-redundant manner with PHOSPHO1 in skeletal mineralization: while PHOSPHO1 mediates the initiation of hydroxyapatite crystallization in the matrix vesicles (MVs), ALPL/TNAP catalyzes the spread of hydroxyapatite crystallization in the extracellular matrix. Also promotes dephosphorylation of osteopontin (SSP1), an inhibitor of hydroxyapatite crystallization in its phosphorylated state; it is however unclear whether ALPL/TNAP mediates SSP1 dephosphorylation via a direct or indirect manner.
