Phosphomannomutase

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phosphomannomutase
2fue.jpg
phosphomannomutase 1, dimer, Human
Identifiers
EC no. 5.4.2.8
CAS no. 59536-73-1
Databases
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BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
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PMC articles
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NCBI proteins

In enzymology, a phosphomannomutase (EC 5.4.2.8) is an enzyme that catalyzes the chemical reaction

alpha-D-mannose 1-phosphate D-mannose 6-phosphate

Hence, this enzyme has one substrate, alpha-D-mannose 1-phosphate, and one product, D-mannose 6-phosphate.

This enzyme belongs to the family of isomerases, specifically the phosphotransferases (phosphomutases), which transfer phosphate groups within a molecule. The systematic name of this enzyme class is alpha-D-mannose 1,6-phosphomutase. Other names in common use include mannose phosphomutase, phosphomannose mutase, and D-mannose 1,6-phosphomutase. This enzyme participates in fructose and mannose metabolism. It has 2 cofactors: D-glucose 1,6-bisphosphate, and D-Mannose 1,6-bisphosphate.

Structural studies

As of late 2007, 18 structures have been solved for this class of enzymes, with PDB accession codes 1K2Y, 1WQA, 2AMY, 2F7L, 2FKF, 2FKM, 2FUC, 2FUE, 2H4L, 2H5A, 2I54, 2I55, and 2Q4R.

Related Research Articles

<span class="mw-page-title-main">Fructose 1,6-bisphosphatase</span> Class of enzymes

The enzyme fructose bisphosphatase (EC 3.1.3.11; systematic name D-fructose-1,6-bisphosphate 1-phosphohydrolase) catalyses the conversion of fructose-1,6-bisphosphate to fructose 6-phosphate in gluconeogenesis and the Calvin cycle, which are both anabolic pathways:

<span class="mw-page-title-main">PFP (enzyme)</span>

Diphosphate—fructose-6-phosphate 1-phosphotransferase also known as PFP is an enzyme of carbohydrate metabolism in plants and some bacteria. The enzyme catalyses the reversible interconversion of fructose 6-phosphate and fructose 1,6-bisphosphate using inorganic pyrophosphate as the phosphoryl donor:

Dihydroxyacetone phosphate (DHAP, also glycerone phosphate in older texts) is the anion with the formula HOCH2C(O)CH2OPO32-. This anion is involved in many metabolic pathways, including the Calvin cycle in plants and glycolysis. It is the phosphate ester of dihydroxyacetone.

<span class="mw-page-title-main">Fructose 1,6-bisphosphate</span> Chemical compound

Fructose 1,6-bisphosphate, also known as Harden-Young ester, is fructose sugar phosphorylated on carbons 1 and 6. The β-D-form of this compound is common in cells. Upon entering the cell, most glucose and fructose is converted to fructose 1,6-bisphosphate.

<span class="mw-page-title-main">Fructose 6-phosphate</span> Chemical compound

Fructose 6-phosphate is a derivative of fructose, which has been phosphorylated at the 6-hydroxy group. It is one of several possible fructosephosphates. The β-D-form of this compound is very common in cells. The great majority of glucose is converted to fructose 6-phosphate upon entering a cell. Fructose is predominantly converted to fructose 1-phosphate by fructokinase following cellular import.

<span class="mw-page-title-main">Fructose-bisphosphate aldolase</span>

Fructose-bisphosphate aldolase, often just aldolase, is an enzyme catalyzing a reversible reaction that splits the aldol, fructose 1,6-bisphosphate, into the triose phosphates dihydroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate (G3P). Aldolase can also produce DHAP from other (3S,4R)-ketose 1-phosphates such as fructose 1-phosphate and sedoheptulose 1,7-bisphosphate. Gluconeogenesis and the Calvin cycle, which are anabolic pathways, use the reverse reaction. Glycolysis, a catabolic pathway, uses the forward reaction. Aldolase is divided into two classes by mechanism.

Glucose-1,6-bisphosphate synthase is a type of enzyme called a phosphotransferase and is involved in mammalian starch and sucrose metabolism. It catalyzes the transfer of a phosphate group from 1,3-bisphosphoglycerate to glucose-1-phosphate, yielding 3-phosphoglycerate and glucose-1,6-bisphosphate.

In enzymology, a β-phosphoglucomutase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Phosphoacetylglucosamine mutase</span>

In enzymology, a phosphoacetylglucosamine mutase is an enzyme that catalyzes the chemical reaction

In enzymology, a phosphoglucomutase (glucose-cofactor) is an enzyme that catalyzes the chemical reaction

In enzymology, a phosphoglucosamine mutase is an enzyme that catalyzes the chemical reaction

In enzymology, a phosphopentomutase is an enzyme that catalyzes the chemical reaction

The enzyme tagatose-bisphosphate aldolase catalyzes the chemical reaction

The enzyme fructose-2,6-bisphosphate 6-phosphatase (EC 3.1.3.54) catalyzes the reaction

<span class="mw-page-title-main">1-phosphofructokinase</span> InterPro Family

In enzymology, 1-phosphofructokinase is an enzyme that catalyzes the chemical reaction

In enzymology, an ADP-specific phosphofructokinase is an enzyme that catalyzes the chemical reaction

In enzymology, a glucose-1-phosphate phosphodismutase is an enzyme that catalyzes the chemical reaction

In enzymology, a phosphoglucokinase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">PMM1</span> Protein-coding gene in the species Homo sapiens

Phosphomannomutase 1 is an enzyme that in humans is encoded by the PMM1 gene.

Bisphosphate may refer to:

References