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Literature summary extracted from

  • Savary, B.J.; Vasu, P.; Cameron, R.G.; McCollum, T.G.; Nunez, A.
    Structural characterization of the thermally tolerant pectin methylesterase purified from Citrus sinensis fruit and its gene sequence (2013), J. Agric. Food Chem., 61, 12711-12719.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.1.1.11 expressed in Escherichia coli Top10F' cells Citrus sinensis

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.1.1.11 cell wall
-
Citrus sinensis 5618
-

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
3.1.1.11 NaCl highest activity in the presence of 1 M NaCl. No enzyme activity (assayed at pH 7.0) is detected in salt-free water washes of pulp (measured at pH 3.8) Citrus sinensis

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.1.1.11 47900
-
x * 47900, one of two principal glycoisoforms, MALDI-TOF mass spectrometry Citrus sinensis
3.1.1.11 53000
-
x * 53000, one of two principal glycoisoforms, MALDI-TOF mass spectrometry Citrus sinensis

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.1.1.11 pectin + H2O Citrus sinensis
-
methanol + pectate
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.1.1.11 Citrus sinensis
-
-
-

Posttranslational Modification

EC Number Posttranslational Modification Comment Organism
3.1.1.11 glycoprotein the enzyme forms exhibits two principal glycoisoforms Citrus sinensis

Purification (Commentary)

EC Number Purification (Comment) Organism
3.1.1.11 DEAE-Sepharose column chromatography and PME-IP affinity chromatography Citrus sinensis

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.1.1.11 fruit
-
Citrus sinensis
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.1.1.11 5.9
-
cell wall extract, at pH 7.0 and 30°C Citrus sinensis
3.1.1.11 963
-
after 163fold purification, at pH 7.0 and 30°C Citrus sinensis

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.1.1.11 pectin + H2O
-
Citrus sinensis methanol + pectate
-
?

Subunits

EC Number Subunits Comment Organism
3.1.1.11 ? x * 47900, one of two principal glycoisoforms, MALDI-TOF mass spectrometry Citrus sinensis
3.1.1.11 ? x * 53000, one of two principal glycoisoforms, MALDI-TOF mass spectrometry Citrus sinensis

Synonyms

EC Number Synonyms Comment Organism
3.1.1.11 pectin methylesterase
-
Citrus sinensis
3.1.1.11 PME
-
Citrus sinensis

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.1.1.11 8
-
-
Citrus sinensis