< 1 EU per 1 ug of protein (determined by LAL method)
Activity:
Specific activity is > 5000 pmol/min/ug, in which one unit will convert 1.0 pmole of Mca-SEVNLDAEFRK(Dnp)RR-NH2 to MCA- Pro-Leu-OH per minute at pH 8.8 at 25°C.
Quality Control Testing:
3 ug by SDS-PAGE under reducing condition and visualized by Coomassie blue stain.
Storage Buffer:
In 20mM Tris-HCl pH 8.0 (10% glycerol, 100 mM NaCl, 1 mM PMSF)
Storage Instruction:
Store at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20°C to -80°C. Aliquot to avoid repeated freezing and thawing.
This gene encodes a common acute lymphocytic leukemia antigen that is an important cell surface marker in the diagnosis of human acute lymphocytic leukemia (ALL). This protein is present on leukemic cells of pre-B phenotype, which represent 85% of cases of ALL. This protein is not restricted to leukemic cells, however, and is found on a variety of normal tissues. It is a glycoprotein that is particularly abundant in kidney, where it is present on the brush border of proximal tubules and on glomerular epithelium. The protein is a neutral endopeptidase that cleaves peptides at the amino side of hydrophobic residues and inactivates several peptide hormones including glucagon, enkephalins, substance P, neurotensin, oxytocin, and bradykinin. This gene, which encodes a 100-kD type II transmembrane glycoprotein, exists in a single copy of greater than 45 kb. The 5' untranslated region of this gene is alternatively spliced, resulting in four separate mRNA transcripts. The coding region is not affected by alternative splicing. [provided by RefSeq