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Literature summary extracted from

  • Jeong, H.Y.; Nguyen, H.P.; Lee, C.
    Genome-wide identification and expression analysis of rice pectin methylesterases implication of functional roles of pectin modification in rice physiology (2015), J. Plant Physiol., 183, 23-29 .
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.1.1.11 sequence comparisons of 43 pme genes in Oryza sativa, and phylogenetic analysis Oryza sativa

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.1.1.11 cell wall
-
 Oryza sativa 5618
-
3.1.1.11 additional information subcellular compartmentalization of pectin methylesterases, overview Oryza sativa
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-

Natural Substrates/ Products (Substrates)

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

Organism

EC Number Organism UniProt Comment Textmining
3.1.1.11 Oryza sativa
-
 cv. Dongjinbyeo, diverse PME genes, contains 43 different types of pectin methyltesterases, PMEs
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Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.1.1.11 leaf 2 month old leaf and flag leaf Oryza sativa
-
3.1.1.11 additional information highest activity was observed in germinating tissues, young culm, and spikelets, where cells are actively elongating. PMEs exhibit spatial- and stress-specific expression patterns during rice development. Rice PMEs and tissue-specific transcriptional analysis, overview Oryza sativa
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3.1.1.11 root germinating root, 1 month old root, and 2 month old root Oryza sativa
-
3.1.1.11 shoot germinating shoot, 1 month old shoot, and young culm Oryza sativa
-
3.1.1.11 spikelet
-
 Oryza sativa
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.1.1.11 pectin + n H2O
-
 Oryza sativa n methanol + pectate
-
 ?

Synonyms

EC Number Synonyms Comment Organism
3.1.1.11 pectin methyltesterase
-
 Oryza sativa
3.1.1.11 PME
-
 Oryza sativa

Expression

EC Number Organism Comment Expression
3.1.1.11 Oryza sativa meta-analysis of biotic stress responsive expression of Oryza sativa PMEs. A number of OsPME genes are transcriptionally responsive to drought, heat, and anaerobic stresses while a few OsPME genes are up- or downregulated by salt and cold stresses. Based on the microarray data, similar expression patterns of OsPMEs are found in response to Magnaporthe grisea and Xanthomonas oryzae pv. oryzae, which cause rice blast and rice bacterial blight diseases, respectively. OsPME2 and 28 show elevated transcript levels in response to both pathogens. More dynamic transcriptional regulation of OsPMEs is found in response to rice stripe virus and brown planthopper. Nine OsPME genes (OsPME9, 15, 16, 20, 27, 28, 34, 41, and 43) are significantly upregulated whereas five OsPME genes (OsPME2, 6, 7, 11, and 17) are downregulated in response to rice stripe virus. Eight OsPME genes (OsPME2, 6, 8, 10, 17, 27, 28, and 32) are significantly upregulated whereas five OsPME genes (OsPME9, 15, 16, 19, and 36) are downregulated in response to brown planthopper additional information

General Information

EC Number General Information Comment Organism
3.1.1.11 evolution depending on the presence or absence of the PME inhibitor (PMEI) domain at the N-terminus (also known as the PRO region), PMEs are grouped into either type-1 PME (with PMEI domain) or type-2 PME (without PMEI domain), phylogenetic analysis Oryza sativa
3.1.1.11 additional information meta-analysis of biotic stress responsive expression of Oryza sativa PMEs Oryza sativa
3.1.1.11 physiological function pectin, which is enriched in primary cell walls and middle lamellae, is an essential polysaccharide in all higher plants. Homogalacturonans (HGA), a major form of pectin, are synthesized and methylesterified by enzymes localized in the Golgi apparatus and transported into the cell wall. Depending on cell type, the degree and pattern of pectin methylesterification are strictly regulated by cell wall-localized pectin methylesterases (PMEs). The removal of methyl groups by PMEs play important roles in rice growth and development. Optimal pectin methylesterification status in each cell type is determined by the balance between PME activity and posttranslational PME inhibition by PME inhibitors (PMEIs) Oryza sativa