||Recombinant Human full length HAH1 (Copper transport protein ATOX1, Metal transport protein ATX1) cloned from human cDNA with a C-terminal purification tag was expressed inE.coli. The protein consists of the human HAH1 (residues 1-68, swissprot O00244). The C-terminal tag is cleaved during purification. MW = 7.8 kDa.
||Copper transport protein ATOX1 is a protein that in humans is encoded by the ATOX1 gene. This gene encodes a copper chaperone that plays a role in copper homeostasis by binding and transporting cytosolic copper to ATPase proteins in the trans-Golgi network for later incorporation to the ceruloplasmin. This protein also functions as an antioxidant against superoxide and hydrogen peroxide, and therefore, may play a significant role in cancer carcinogenesis. Because of its cytogenetic location, this gene represents a candidate gene for 5q-syndrome. In melanocytic cells ATOX1 gene expression may be regulated by MITF.
||> 95% by SDS-PAGE. The protein was observed as a single band migrating at amolecular weight of (<10 kDa).
||1 mg/ml in 50mM KH2PO4/K2HPO2, pH8.0, 2mM DTT (dithiothreitol). The concentration is calculated from the absorbance at 280nm (e280= 2680 M-1 cm-1).
||Under the above described conditions, to avoid precipitation or protein dimerization, the product can be concentrated to a maximum of 1mM. In case of precipitation, the precipitate can be partially redissolved using buffer solution with high conc. of DTT (20mM or more).
||-20ºC. The protein is stable at 4ºC for at least 2 weeks and at 25ºC for at least several hours. After initial defrost, aliquot product into individual tubes and refreeze at -20ºC. Avoid repeated freeze/defrost cycles.