Introduction
PGAM1, a member of the phosphoglycerate mutase family, plays a crucial role in glucose and 2,3-BPGA metabolism. It catalyzes the reversible conversion of 3-phosphoglycerate (3-PGA) to 2-phosphoglycerate (2-PGA) in the glycolytic pathway. Existing as a dimeric enzyme, PGAM1 is composed of varying proportions of muscle (MM), brain (BB), and hybrid (MB) isozymes depending on the tissue. Mutations in the PGAM1 gene can result in muscle phosphoglycerate mutase deficiency, also known as glycogen storage disease X.
Description
Recombinant Mouse PGAM1, expressed in E.coli, is a non-glycosylated polypeptide chain. This monomeric protein consists of 278 amino acids (residues 1-254), with a molecular weight of 31.4kDa. It features a 24 amino acid His-tag fused at the N-terminus. Purification is achieved using proprietary chromatographic techniques.
Physical Appearance
A clear, colorless solution that has been sterilized by filtration.
Formulation
The PGAM1 solution is provided at a concentration of 1mg/ml in a buffer consisting of 20mM Tris-HCl (pH 8.0), 20% glycerol, 0.1M NaCl, and 1mM DTT.
Stability
For short-term storage (up to 4 weeks), the PGAM1 solution should be stored at 4°C. For extended storage, it is recommended to freeze the solution at -20°C. The addition of a carrier protein (0.1% HSA or BSA) is advisable for long-term storage. To maintain protein integrity, repeated freeze-thaw cycles should be avoided.
Purity
The purity of PGAM1 is greater than 95% as determined by SDS-PAGE analysis.
Biological Activity
The specific activity of PGAM1 is measured to be greater than 150 units/mg. One unit of activity is defined as the amount of enzyme required to convert 1.0 µmole of 3-phosphoglycerate to 2-phosphoglycerate per minute at a pH of 7.6 and a temperature of 37°C.
Synonyms
Phosphoglycerate mutase 1, BPG-dependent PGAM 1, Phosphoglycerate mutase isozyme B, PGAM-B, Pgam1, Pgam-1, 2310050F24Rik.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSHMAAYKL VLIRHGESAW NLENRFSGWY DADLSPAGHE EAKRGGQALR DAGYEFDICF TSVQKRAIRT LWTVLDAIDQ MWLPVVRTWR LNERHYGGLT GLNKAETAAK HGEAQVKIWR RSYDVPPPPM EPDHPFYSNI SKDRRYADLT EDQLPSCESL KDTIARALPF WNEEIVPQIK EGKRVLIAAH GNSLRGIVKH LEGLSEEAIM ELNLPTGIPI VYELDKNLKP IKPMQFLGDE ETVRKAMEAV AAQGKVKK.