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Literature summary for 2.4.1.207 extracted from

  • Rose, J.K.C.; Braam, J.; Fry, S.C.; Nishitani, K.
    The XTH family of enzymes involved in xyloglucan endotransglucosylation and endohydrolysis: Current perspectives and a new unifying nomenclature (2002), Plant Cell Physiol., 43, 1421-1435.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information
-
Pisum sativum
additional information At-XTH22 is strongly induced in response to mechanical perturbations such as wind or touch Arabidopsis thaliana

Cloned(Commentary)

Cloned (Comment) Organism
gene structure, genomic localization and phylogenetic relationship of the XTH gene family Arabidopsis thaliana

Protein Variants

Protein Variants Comment Organism
E97Q At-XTH22: a Glu to Gln substitution, converting the active site sequence DEIDFEFL to DQIDFEFL, abolishes XET activity Arabidopsis thaliana

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information recombinant TCH4 protein, Km: 0.62 mg/ml for nonfucosylated tamarind xyloglucan as donor, 1.8 mg/ml for fucosylated pea xyloglucan Arabidopsis thaliana
0.0003
-
xyloglucan acceptor At-XTH22, high MW xyloglucan Arabidopsis thaliana
0.019
-
Xylalpha(1-6)Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)Glc
-
Pisum sativum
0.033
-
Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc
-
Pisum sativum
0.05
-
Xyl(1-6)Glc(1-4)(Xyl(1-6))Glc(1-4)(Fuc-Gal-Xyl(1-6))Glc(1-4)Glc
-
Pisum sativum
0.073
-
Xylalpha(1-6)Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)Glc-ol recombinant At-XTH22 Arabidopsis thaliana
0.2
-
Xyl(1-6)Glc(1-4)(Xyl(1-6))Glc(1-4)Glc
-
Pisum sativum

Localization

Localization Comment Organism GeneOntology No. Textmining
apoplast
-
Vigna angularis 48046
-
cell wall
-
Pisum sativum 5618
-
cell wall
-
Tropaeolum majus 5618
-
cell wall
-
Vigna angularis 5618
-
cell wall bound to Nicotiana tabacum 5618
-
additional information
-
Pisum sativum
-
-
additional information
-
Nicotiana tabacum
-
-
additional information expression profiles of members of the XTH gene family, each XTH gene is likely to have a unique fingerprint of expression and regulation Arabidopsis thaliana
-
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
33000
-
x * 33000, SDS-PAGE Vigna angularis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
donor xyloglucan + xyloglucan acceptor Pisum sativum
-
?
-
?
donor xyloglucan + xyloglucan acceptor Nicotiana tabacum
-
?
-
?
donor xyloglucan + xyloglucan acceptor Solanum lycopersicum
-
?
-
?
donor xyloglucan + xyloglucan acceptor Vigna angularis
-
?
-
?
donor xyloglucan + xyloglucan acceptor Arabidopsis thaliana existence of different classes of XET with differing roles in vivo ?
-
?
donor xyloglucan + xyloglucan acceptor Tropaeolum majus existence of different classes of XET with differing roles in vivo ?
-
?
donor xyloglucan + xyloglucan acceptor Arabidopsis thaliana enzyme is capable of splitting and reconnecting xyloglucan molecules in rapidly growing plant tissues, expression and presumed physiological roles of At-XTH22 and 24 ?
-
?

Organism

Organism UniProt Comment Textmining
Apium sp.
-
-
-
Arabidopsis thaliana
-
ecotype Columbia
-
Arabidopsis thaliana
-
systematic nomenclature of the XTH gene family with 3 subfamilies
-
Nicotiana tabacum
-
-
-
Pisum sativum
-
-
-
Solanum lycopersicum
-
-
-
Spinacia oleracea
-
spinach
-
Tropaeolum majus
-
-
-
Vigna angularis
-
azuki bean
-

Purification (Commentary)

Purification (Comment) Organism
-
Vigna angularis

Reaction

Reaction Comment Organism Reaction ID
2 Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4))(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc = Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glc + Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4))(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc double-displacement reaction mechanism Tropaeolum majus

Source Tissue

Source Tissue Comment Organism Textmining
epicotyl
-
Pisum sativum
-
epicotyl
-
Tropaeolum majus
-
epicotyl
-
Vigna angularis
-
petiole young petioles, high activity in thick-walled collenchyma cells Apium sp.
-
root
-
Tropaeolum majus
-
root XET activity in the initiating root hairs Arabidopsis thaliana
-
root XET activity in the root cell elongation zone Nicotiana tabacum
-
root XET activity in the root cell elongation zone Arabidopsis thaliana
-
seed
-
Pisum sativum
-
seed
-
Tropaeolum majus
-
stem
-
Pisum sativum
-
stem
-
Solanum lycopersicum
-
stem
-
Tropaeolum majus
-
stem
-
Vigna angularis
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
donor xyloglucan + acceptor xyloglucan
-
Spinacia oleracea ?
-
?
donor xyloglucan + acceptor xyloglucan
-
Nicotiana tabacum ?
-
?
donor xyloglucan + acceptor xyloglucan acceptors: polymer xyloglucan or its derived oligosaccharides Pisum sativum ?
-
?
donor xyloglucan + acceptor xyloglucan acceptors: polymer xyloglucan or its derived oligosaccharides Arabidopsis thaliana ?
-
?
donor xyloglucan + acceptor xyloglucan acceptors: polymer xyloglucan or its derived oligosaccharides Solanum lycopersicum ?
-
?
donor xyloglucan + acceptor xyloglucan acceptors: polymer xyloglucan or its derived oligosaccharides Tropaeolum majus ?
-
?
donor xyloglucan + acceptor xyloglucan acceptors: polymer xyloglucan or its derived oligosaccharides Vigna angularis ?
-
?
donor xyloglucan + acceptor xyloglucan acceptors: polymer xyloglucan or its derived oligosaccharides Apium sp. ?
-
?
donor xyloglucan + acceptor xyloglucan preference for solanaceous xyloglucan without Fuc over xyloglucan from other sources as donor Solanum lycopersicum ?
-
?
donor xyloglucan + acceptor xyloglucan donor xyloglucan cleavage sites of XTHs from stems and epicotyls Vigna angularis ?
-
?
donor xyloglucan + acceptor xyloglucan donor: Glc8-based XXXGXXXG Tropaeolum majus ?
-
?
donor xyloglucan + Xyl(1-6)Glc(1-4)(Xyl(1-6))Glc(1-4)(Fuc-Gal-Xyl(1-6))Glc(1-4)Glc
-
Arabidopsis thaliana ?
-
?
donor xyloglucan + Xyl(1-6)Glc(1-4)(Xyl(1-6))Glc(1-4)(Fuc-Gal-Xyl(1-6))Glc(1-4)Glc preference of XLLG over XXXG over XXFG over XXG Pisum sativum ?
-
?
donor xyloglucan + Xyl(1-6)Glc(1-4)(Xyl(1-6))Glc(1-4)(Fuc-Gal-Xyl(1-6))Glc(1-4)Glc XXFG Spinacia oleracea ?
-
?
donor xyloglucan + Xyl(1-6)Glc(1-4)(Xyl(1-6))Glc(1-4)(Fuc-Gal-Xyl(1-6))Glc(1-4)Glc XXFG Pisum sativum ?
-
?
donor xyloglucan + Xyl(1-6)Glc(1-4)(Xyl(1-6))Glc(1-4)Glc
-
Tropaeolum majus ?
-
?
donor xyloglucan + Xyl(1-6)Glc(1-4)(Xyl(1-6))Glc(1-4)Glc XXG, preference of XLLG over XXXG over XXFG over XXG Pisum sativum ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Galbeta(1-2)-Xylalpha(1-6))Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)Glc-ol reaction results in a hybrid product and a leaving group Arabidopsis thaliana ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Galbeta(1-2)-Xylalpha(1-6))Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)Glc-ol XLLG-ol Pisum sativum ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Galbeta(1-2)-Xylalpha(1-6))Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)Glc-ol XLLG-ol Arabidopsis thaliana ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Galbeta(1-2)-Xylalpha(1-6))Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)Glc-ol XLLG-ol Tropaeolum majus ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)Glc preference of XLLG over XXXG over XXFG over XXG Pisum sativum ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)Glc XLLG Pisum sativum ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)(Galbeta(1-2)Xylalpha(1-6))Glcbeta(1-4)Glc XLLG Tropaeolum majus ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc preference of XLLG over XXXG over XXFG over XXG Pisum sativum ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc XXXG Pisum sativum ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc XXXG Tropaeolum majus ?
-
?
donor xyloglucan + Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glcbeta1-PA pyridylamino XXXG Vigna angularis ?
-
?
donor xyloglucan + xyloglucan acceptor
-
Pisum sativum ?
-
?
donor xyloglucan + xyloglucan acceptor
-
Nicotiana tabacum ?
-
?
donor xyloglucan + xyloglucan acceptor
-
Solanum lycopersicum ?
-
?
donor xyloglucan + xyloglucan acceptor
-
Vigna angularis ?
-
?
donor xyloglucan + xyloglucan acceptor existence of different classes of XET with differing roles in vivo Arabidopsis thaliana ?
-
?
donor xyloglucan + xyloglucan acceptor existence of different classes of XET with differing roles in vivo Tropaeolum majus ?
-
?
donor xyloglucan + xyloglucan acceptor enzyme is capable of splitting and reconnecting xyloglucan molecules in rapidly growing plant tissues, expression and presumed physiological roles of At-XTH22 and 24 Arabidopsis thaliana ?
-
?
Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc + Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc acceptor and donor: Glc8-based XXXGXXXG Tropaeolum majus Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc + Xylalpha(1-6)Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)(Xylalpha(1-6))Glcbeta(1-4)Glc products: XXXGXXXGXXXG + XXXG ?

Subunits

Subunits Comment Organism
?
-
Arabidopsis thaliana
?
-
Solanum lycopersicum
?
-
Tropaeolum majus
? x * 33000, SDS-PAGE Vigna angularis

Synonyms

Synonyms Comment Organism
XTH
-
-