BPNT1, 1-308aa, Human, His tag, E.coli

BPNT1, also known as BPntase, PAP phosphatase or PIP (PAP-inositol-1, 4-phosphatase), is a member of the magnesium-dependent, lithium-sensitive phosphomono-esterase superfamily. Using magnesium as a cofactor, BPNT1 catalyzes the conversion of PAPS (adenosine 3'-phosphate 5' phosphosulfate) to APS (adenosine 5'-phosphosulfate) and the conversion of PAP (3'(2')-phosphoadenosine 5' phosphate) to AMP (adenosine 5'-phosphate). Expressed ubiquitously with highest levels in brain and kidney, BPNT1 is potently inhibited by lithium, a drug used for the treatment of manic depression and bipolar affective disorder, suggesting a possible role for BPNT1 in the etiology of mood disorders. Recombinant human BPNT1 protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.

Can be stored at +4C short term (1-2 weeks). For long term storage, aliquot and store at -20C or -70C. Avoid repeated freezing and thawing cycles.

0.5 mg/ml (determined by Bradford assay)

• Shaltiel G., et al. (2002) Bipolar Disord. 4(5):302-6.
• Agam G., et al. (2003) J Psychiatr Res. 37(5):433-42.

>, 90 % by SDS - PAGE

MRGSHHHHHH GMASMTGGQQ MGRDLYDDDD KDRWGSMASS NTVLMRLVAS AYSIAQKAGM IVRRVIAEGD LGIVEKTCAT DLQTKADRLA QMSICSSLAR KFPKLTIIGE EDLPSEEVDQ ELIEDSQWEE ILKQPCPSQY SAIKEEDLVV WVDPLDGTKE YTEGLLDNVT VLIGIAYEGK AIAGVINQPY YNYEAGPDAV LGRTIWGVLG LGAFGFQLKE VPAGKHIITT TRSHSNKLVT DCVAAMNPDA VLRVGGAGNK IIQLIEGKAS AYVFASPGCK KWDTCAPEVI LHAVGGKLTD IHGNVLQYHK DVKHMNSAGV LATLRNYDYY ASRVPESIKN ALVP