Phosphoglucomutase
Catalyzes the interconversion between glucose-6-phosphate and alpha-glucose-1-phosphate. This is the first step in the biosynthesis of diglucosyl-diacylglycerol (Glc2-DAG), i.e. the predominant glycolipid found in B.subtilis membrane, which is also used as a membrane anchor for lipoteichoic acid (LTA). Has a role in the biosynthesis of all phosphate-containing envelope polymers, since glucose-1-phosphate is the precursor of UDP-glucose, which serves as a glucosyl donor not only for the biosynthesis of LTA but also for wall teichoic acids (WTAs). Is required for biofilm formation. This is likely due to another role of UDP-glucose, which might also act as a metabolic signal regulating biofilm formation or may be involved in some unknown biosynthetic pathway essential for biofilm formation, e.g. the synthesis of an exopolysaccharide.
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Phosphoglucomutase
Catalyzes the interconversion between glucose-6-phosphate and alpha-glucose-1-phosphate. This is the first step in the biosynthesis of diglucosyl-diacylglycerol (Glc2-DAG), i.e. the predominant glycolipid found in B.subtilis membrane, which is also used as a membrane anchor for lipoteichoic acid (LTA). Has a role in the biosynthesis of all phosphate-containing envelope polymers, since glucose-1-phosphate is the precursor of UDP-glucose, which serves as a glucosyl donor not only for the biosynthesis of LTA but also for wall teichoic acids (WTAs). Is required for biofilm formation. This is likely due to another role of UDP-glucose, which might also act as a metabolic signal regulating biofilm formation or may be involved in some unknown biosynthetic pathway essential for biofilm formation, e.g. the synthesis of an exopolysaccharide.
Phosphoglucomutase 1
Minor phosphoglucomutase isozyme that catalyzes the interconversion of glucose 1-phosphate and glucose 6-phosphate (PubMed:5784209). Constitutes about 10-20% of the phosphoglucomutase activity in the cell (PubMed:14264884, PubMed:5231755). Key enzyme in hexose metabolism. The forward reaction is an essential step in the energy metabolism of galactose since the product of the galactose pathway enzymes in yeast is glucose 1-phosphate. The reverse reaction is an essential step for biosynthesis when carbon sources other than galactose are the energy source because glucose 1-phosphate is the starting point for the synthesis of UDP-glucose, which acts as a precursor for the synthesis of oligosaccharides and trehalose (PubMed:14264884).
Phosphoglucomutase 2
Major phosphoglucomutase isozyme that catalyzes the reversible interconversion of glucose 1-phosphate and glucose 6-phosphate (PubMed:5784209). Constitutes about 80-90% of the phosphoglucomutase activity in the cell (PubMed:14264884, PubMed:5231755). Key enzyme in hexose metabolism. The forward reaction is an essential step in the energy metabolism of galactose since the product of the galactose pathway enzymes in yeast is glucose 1-phosphate. The reverse reaction is an essential step for biosynthesis when carbon sources other than galactose are the energy source because glucose 1-phosphate is the starting point for the synthesis of UDP-glucose, which acts as a precursor for the synthesis of oligosaccharides and trehalose (PubMed:14264884).
Phosphoglucomutase, cytoplasmic
This enzyme participates in both the breakdown and synthesis of glucose.
Phosphoglucomutase-1
The protein encoded by this gene is an isozyme of phosphoglucomutase (PGM) and belongs to the phosphohexose mutase family. There are several PGM isozymes, which are encoded by different genes and catalyze the transfer of phosphate between the 1 and 6 positions of glucose. In most cell types, this PGM isozyme is predominant, representing about 90% of total PGM activity. In red cells, PGM2 is a major isozyme. This gene is highly polymorphic. Mutations in this gene cause glycogen storage disease type 14. Alternativley spliced transcript variants encoding different isoforms have been identified in this gene.[provided by RefSeq, Mar 2010]
Phosphoglucomutase-2
May be involved in membrane fusion in exocytosis.
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