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Literature summary for 3.1.1.11 extracted from

  • Al-Qsous, S.; Carpentier, E.; Klein-Eude, D.; Burel, C.; Mareck, A.; Dauchel, H.; Gomord, V.; Balange, A.P.
    Identification and isolation of a pectin methylesterase isoform that could be involved in flax cell wall stiffening (2004), Planta, 2004, 369-378.
No PubMed abstract available

Cloned(Commentary)

Cloned (Comment) Organism
luPME5 isoform Linum usitatissimum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.016
-
citrus pectin pH 7.5, basic isoform Linum usitatissimum
0.031
-
citrus pectin pH 7.5, very basic isoform, i.e. luPME5 Linum usitatissimum
0.21
-
citrus pectin pH 7.5, neutral isoform Linum usitatissimum

Localization

Localization Comment Organism GeneOntology No. Textmining
cell wall
-
Linum usitatissimum 5618
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
38000
-
gel filtration, very basic isoform, i.e. luPME5 Linum usitatissimum
56000
-
isoform luPME1: 2 * 56000, SDS-PAGE, isoform luPME3: 2 * 58000, SDS-PAGE Linum usitatissimum
58000
-
isoform luPME1: 2 * 56000, SDS-PAGE, isoform luPME3: 2 * 58000, SDS-PAGE Linum usitatissimum
110000
-
gel filtration, neutral and basic isoform Linum usitatissimum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Linum usitatissimum involved in cell wall stiffening ?
-
?

Organism

Organism UniProt Comment Textmining
Linum usitatissimum Q94FS5 luPME5; cv. Ariane, flax
-
Linum usitatissimum Q94FS6 luPME1; cv. Ariane, flax
-
Linum usitatissimum Q9FVF9 luPME3; cv. Ariane, flax
-

Posttranslational Modification

Posttranslational Modification Comment Organism
proteolytic modification cleavage between Ala29 and Thr30 removes the signal peptide from the pro-protein Linum usitatissimum

Purification (Commentary)

Purification (Comment) Organism
partial Linum usitatissimum

Source Tissue

Source Tissue Comment Organism Textmining
callus
-
Linum usitatissimum
-
hypocotyl
-
Linum usitatissimum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
citrus pectin + H2O
-
Linum usitatissimum methanol + citrus pectate
-
?
citrus pectin + H2O
-
Linum usitatissimum methanol + pectate
-
?
additional information involved in cell wall stiffening Linum usitatissimum ?
-
?

Subunits

Subunits Comment Organism
dimer isoform luPME1: 2 * 56000, SDS-PAGE, isoform luPME3: 2 * 58000, SDS-PAGE Linum usitatissimum
monomer isoform luPME5, 1 * 34000-40000, SDS-PAGE Linum usitatissimum

Synonyms

Synonyms Comment Organism
luPME
-
Linum usitatissimum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5 7 neutral isoform Linum usitatissimum
8.5
-
basic isoform Linum usitatissimum
8.5 9 very basic isoform, i.e. luPME5 Linum usitatissimum

pI Value

Organism Comment pI Value Maximum pI Value
Linum usitatissimum isoelectric focusing, pH gradient 3-10, neutral isoform
-
7
Linum usitatissimum isoelectric focusing, pH gradient 3-10, basic isoform
-
8.3
Linum usitatissimum isoelectric focusing, pH gradient 3-10, very basic isoform, i.e. luPME5
-
9.6