Phosphoglycerate kinase 2, dJ417L20.2, PGKB, PGKPSS, Phosphoglycerate kinase, testis specific
PGK2, also known as Phosphoglycerate kinase 2, is a testis-specific form of phosphoglycerate kinase.Originally, it was assumed that PGK2was a pseudogene. However, nowadays it is known that this protein is a functional phosphoglycerate kinase. During the Embden-Meyerhof-Parnas pathway of glycolysis, in thelater stages of spermatogenesis, the protein catalyses the reversible conversion of 1, 3- bisphosphoglycerate to 3-phosphoglycerate.
PGK2 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 437 amino acids (1-417a.a.) and having a molecular mass of 46.9kDa.
PGK2 is fused to a 20 amino acid His tag at N-Terminus and purified by proprietary chromatographic techniques.
The PGK2 solution (0.5mg/ml) contains 20% glycerol, 20mM Tris-HCl buffer (pH 8.0), 1mM DTT and 0.1M NaCl.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.
Greater than 95.0% as determined by SDS-PAGE.
Specific activity > 500unit/mg. One unit will convert 1 umole of 1,3-Bisphosphoglycerate to 3-PGA per minute at pH 8.0 at 37˚C.
Amino acid sequence
MGSSHHHHHH SSGLVPRGSH MSLSKKLTLD KLDVRGKRVI MRVDFNVPMK KNQITNNQRI KASIPSIKYC LDNGAKAVVL MSHLGRPDGV PMPDKYSLAP VAVELKSLLG KDVLFLKDCV GAEVEKACAN PAPGSVILLE NLRFHVEEEG KGQDPSGKKI KAEPDKIEAF RASLSKLGDV YVNDAFGTAH RAHSSMVGVN LPHKASGFLM KKELDYFAKA LENPVRPFLA ILGGAKVADK IQLIKNMLDK VNEMIIGGGM AYTFLKVLNN MEIGASLFDE EGAKIVKDIM AKAQKNGVRI TFPVDFVTGD KFDENAQVGK ATVASGISPG WMGLDCGPES NKNHAQVVAQ ARLIVWNGPL GVFEWDAFAK GTKALMDEIV KATSKGCITV IGGGDTATCC AKWNTEDKVS HVSTGGGASL ELLEGKILPG VEALSNM