(1-phosphatidylinositol 5-phosphate 4-kinase 2-beta)(Diphosphoinositide kinase 2-beta)(Phosphatidylinositol 5-phosphate 4-kinase type II beta)(PI(5)P 4-kinase type II beta)(PIP4KII-beta)(PtdIns(5)P-4-kinase isoform 2-beta)
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Tag
N-terminal 10xHis-tagged
Molecular Weight
53.3 kDa
Relevance
Participates in the biosynthesis of phosphatidylinositol 4,5-bisphosphate . Preferentially utilizes GTP, rather than ATP, for PI(5)P phosphorylation and its activity reflects changes in direct proportion to the physiological GTP concentration . Its GTP-sensing activity is critical for metabolic adaptation . PIP4Ks negatively regulate insulin signaling through a catalytic-independent mechanism. They interact with PIP5Ks and suppress PIP5K-mediated PtdIns(4,5)P2 synthesis and insulin-dependent conversion to PtdIns(3,4,5)P3 .
Source
E.coli
Endotoxin Level
Not test.
Form
Liquid or Lyophilized powder
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Purity
Greater than 90% as determined by SDS-PAGE.
Storage
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Reviews of Recombinant Human Phosphatidylinositol 5-phosphate 4-kinase type-2 beta (PIP4K2B)