Human Pyruvate kinase M2 (PKM2) also known as PKM1/M2, isoform a (GenBank Accession No. NM_002654) full length with N-terminal His-tag, MW = 58.9 kDa, expressed in an E. coli expression system.
Specific activity: >=200,000 pmoles/min/ug.
Background
PKM1 and PKM2 are different splicing products of the PKM gene (exon 9 for PKM1 and exon 10 for PKM2). The M1 isoform (PKM1) is expressed in muscle and brain, and the M2 isoform is expressed during embryogenesis, in adipose tissue and pancreatic islets, and is the predominant form found in cancer cells.
Immunogen Region
full length
Tag
N-terminal His-tag
Formulation
40 mM Tris-HCl, pH 8.0, 110 mM NaCl, 2.2 mM KCl, 3 mM DTT, 20% glycerol, and 200 mM imidazole
Species
Human
Application
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling
Notes
A 50 ul PKM2 reaction is conducted in abuffer containing 50 mM Tris (pH 7.4), 10mM MgCl2, 50 mM KCl, 2 mM ADP, 10mM phosphoenolpyruvate (PEP) at roomtemperature for 15 min. ATP production isdetected using Kinase-Glo LuminescentKinase Assay Platform.
Avoid freeze/thaw cycles.
GenBank
NM_002654
Mw(kda)
58.9 kDa
Synonyms
pyruvate kinase muscle, PKM2, cytosolic thyroid hormone-binding protein,CTHBP, thyroid hormone-binding protein 1, THBP1, opa-interacting protein 3,OIP3
Uniprot
P14618
Shipping Temperature
-80°C (dry ice)
Format
Aqueous buffer solution
Storage
At least 6 months at -80°C.
Reference
1. Chen, J., et al. 2011. Oncogene 30(42):4297-306. 2. Wong T.S. et al., Int. J. Cancer 123 (2), 251-257 (2008). 3. Christofk H.R. et al., Nature 452 (7184), 181- 186 (2008).