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Literature summary for 5.4.2.2 extracted from

  • Zhang, P.; Shao, Z.; Li, L.; Liu, S.; Yao, J.; Duan, D.
    Molecular characterisation and biochemical properties of phosphomannomutase/phosphoglucomutase (PMM/PGM) in the brown seaweed Saccharina japonica (2018), J. Appl. Phycol., 30, 2687-2696 .
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
alpha-D-Glucose 1,6-bisphosphate dependent on Saccharina japonica

Cloned(Commentary)

Cloned (Comment) Organism
expressed as phosphomannomutase/phosphoglucomutase fusion protein in Escherichia coli Transetta (DE3) cells Saccharina japonica

Inhibitors

Inhibitors Comment Organism Structure
additional information not inhibited by NaCl or KCl Saccharina japonica

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.08
-
alpha-D-glucose 1-phosphate at pH 7.0 and 30°C Saccharina japonica
1.15
-
alpha-D-mannose 1-phosphate at pH 7.5 and 30°C Saccharina japonica

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ maximum activity in the presence of Mg2+ Saccharina japonica

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
alpha-D-glucose 1-phosphate Saccharina japonica
-
D-glucose 6-phosphate
-
?
alpha-D-mannose 1-phosphate Saccharina japonica
-
D-mannose 6-phosphate
-
?

Organism

Organism UniProt Comment Textmining
Saccharina japonica
-
-
-

Purification (Commentary)

Purification (Comment) Organism
maltose binding protein-Trap column chromatography and Superdex 200 gel filtration Saccharina japonica

Source Tissue

Source Tissue Comment Organism Textmining
sporophyte
-
Saccharina japonica
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
alpha-D-glucose 1-phosphate
-
Saccharina japonica D-glucose 6-phosphate
-
?
alpha-D-mannose 1-phosphate
-
Saccharina japonica D-mannose 6-phosphate
-
?

Synonyms

Synonyms Comment Organism
phosphomannomutase/phosphoglucomutase bifunctional enzyme Saccharina japonica
PMM/PGM bifunctional enzyme Saccharina japonica

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
-
Saccharina japonica

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
25 35 more than 70% activity between 25 and 35°C Saccharina japonica

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30 60 the enzyme is stable at 30°C (compared to other temperatures) but loses most of its activity after incubation at 50 and 60°C for 10 min Saccharina japonica

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
pH optimum for phosphomannomutase activity Saccharina japonica
7.5
-
pH optimum for phosphoglucomutase activity Saccharina japonica

pH Range

pH Minimum pH Maximum Comment Organism
6 7.5 more than 50% activity between pH 6.0 and 7.5 Saccharina japonica

Expression

Organism Comment Expression
Saccharina japonica high-temperature (25°C) and high-light intensity (0.055 mM photons m-2 s-1) both significantly increase the transcription of the enzyme 4.6fold up