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Literature summary extracted from

  • Arsovski, A.A.; Popma, T.M.; Haughn, G.W.; Carpita, N.C.; McCann, M.C.; Western, T.L.
    AtBXL1 encodes a bifunctional beta-D-xylosidase/alpha-L-arabinofuranosidase required for pectic arabinan modification in Arabidopsis mucilage secretory cells (2009), Plant Physiol., 150, 1219-1234.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.2.1.55 determination of the genetic interactions between AtBXL1 and known MSC-related transcription factors, overview Arabidopsis thaliana

Protein Variants

EC Number Protein Variants Comment Organism
3.2.1.55 additional information identification of a T-DNA insertion mutant of AtBXL1, that shows mucilage release both patchy and slow, and the seeds display delayed germination. While developmental analysis of mutant seeds reveals no change in mucilage secretory cell morphology, changes in monosaccharide quantities are detected, suggesting the mucilage release defect results from altered mucilage composition. bxl1 Mutant seeds and antibody staining of developing seed coats reveal an increase in alpha-1,5-linked arabinans, phenotype, overview. Mutational analysis of the genetic interactions between AtBXL1 and MSC-related transcription factors Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.2.1.55 alpha-L-arabinan + H2O Arabidopsis thaliana
-
 alpha-1,5-L-arabinobiose + ? the enzyme releases alpha-1,5-L-arabinobiose from the nonreducing end of the polysaccharide ?
3.2.1.55 additional information Arabidopsis thaliana BXL1 is a bifunctional beta-D-xylosidase/alpha-L-arabinofuranosidase required for pectic arabinan modification in Arabidopsis mucilage secretory cells, overview ?
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.37 Arabidopsis thaliana Q9FGY1 Bxl1; bifunctional beta-D-xylosidase/alpha-L-arabinofuranosidase
-
3.2.1.55 Arabidopsis thaliana Q9FG41 Ws ecotype, CS16299
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.55 additional information AtBXL1 is transcribed throughout the plant, including in differentiating seeds Arabidopsis thaliana
-
3.2.1.55 mucilage secretory cell
-
 Arabidopsis thaliana
-
3.2.1.55 seed
-
 Arabidopsis thaliana
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.55 4-nitrophenyl alpha-L-arabinofuranoside + H2O
-
 Arabidopsis thaliana 4-nitrophenol + alpha-L-arabinofuranose
-
 ?
3.2.1.55 alpha-L-arabinan + H2O
-
 Arabidopsis thaliana alpha-1,5-L-arabinobiose + ? the enzyme releases alpha-1,5-L-arabinobiose from the nonreducing end of the polysaccharide ?
3.2.1.55 additional information BXL1 is a bifunctional beta-D-xylosidase/alpha-L-arabinofuranosidase required for pectic arabinan modification in Arabidopsis mucilage secretory cells, overview Arabidopsis thaliana ?
-
 ?

Synonyms

EC Number Synonyms Comment Organism
3.2.1.37 Bxl1
-
 Arabidopsis thaliana
3.2.1.55 AtBXL1
-
 Arabidopsis thaliana

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.55 37
-
 assay at Arabidopsis thaliana

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.55 5
-
 assay at Arabidopsis thaliana

General Information

EC Number General Information Comment Organism
3.2.1.37 physiological function in T-DNA insertion mutant, mucilage release is both patchy and slow and seeds display delayed germination. Developmental analysis of mutant seeds reveals no change in mucilage secretory cell morphology, but changes in monosaccharide quantities are detected. Chemical and immunological analyses of mucilage extracted from bxl1 mutant seeds and antibody staining of developing seed coats reveal an increase in (1-5)-linked arabinans, suggesting that BXL1 is acting as an a-L-arabinofuranosidase in the seed coat Arabidopsis thaliana
3.2.1.55 physiological function BXL1 is a bifunctional beta-D-xylosidase/alpha-L-arabinofuranosidase required for pectic arabinan modification in Arabidopsis mucilage secretory cells, overview. BXL1 is acting as an alpha-L-arabinofuranosidase in the seed coat during vascular development Arabidopsis thaliana