Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 3.2.1.24 extracted from

  • Conti, S.; Carratu, G.; Giannattasio, M.
    Alpha-D-mannosidase from the aleurone layers of resting wheat grains: sugar-depleted forms (1987), Phytochemistry, 26, 2909-2912.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Co2+ 57% inhibition at 1 mM Triticum aestivum
EDTA addition of Zn2+ restores inhibitory effect Triticum aestivum
swainsonine competitive inhibition Triticum aestivum

Metals/Ions

Metals/Ions Comment Organism Structure
Zn2+ 25% stimulation Triticum aestivum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
188000 197000 gel filtration, sucrose density gradient centrifugation Triticum aestivum

Organism

Organism UniProt Comment Textmining
Triticum aestivum
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein sugar content, w/w: 20.1% glucose, 3.09% mannose, 1.7% galactose, less than 1%N-acetyl-D-glucosamine, minor component: sialic acid Triticum aestivum

Purification (Commentary)

Purification (Comment) Organism
to homogeneity, chromatography steps, affinity chromatography Triticum aestivum

Source Tissue

Source Tissue Comment Organism Textmining
aleurone layer
-
Triticum aestivum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
8.33
-
-
Triticum aestivum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
p-nitrophenyl-alpha-D-mannopyranoside + H2O
-
Triticum aestivum p-nitrophenol + alpha-D-mannopyranose
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
48
-
-
Triticum aestivum

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
35
-
half maximal activity Triticum aestivum
55
-
half maximal activity Triticum aestivum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.6 4.8
-
Triticum aestivum

pH Range

pH Minimum pH Maximum Comment Organism
5.6
-
half maximal activity Triticum aestivum