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Literature summary for 3.2.1.39 extracted from

  • Bragatto, I.; Genta, F.A.; Ribeiro, A.F.; Terra, W.R.; Ferreira, C.
    Characterization of a beta-1,3-glucanase active in the alkaline midgut of Spodoptera frugiperda larvae and its relation to beta-glucan-binding proteins (2010), Insect Biochem. Mol. Biol., 40, 861-872.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in inactive form in Escherichia coli, expression as active enzyme in Pichia pastoris Spodoptera frugiperda

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
40400
-
x * 40400, calculated Spodoptera frugiperda

Organism

Organism UniProt Comment Textmining
Spodoptera frugiperda A6YQV6 member of glycosyl hysrolase family 16
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein sequence has five putative glycosylation sites at residues T33, S77, S324, E188 and E193 Spodoptera frugiperda

Purification (Commentary)

Purification (Comment) Organism
from larval midgut Spodoptera frugiperda

Source Tissue

Source Tissue Comment Organism Textmining
larva
-
Spodoptera frugiperda
-
midgut mRNA coding for SLam is expressed along the whole midgut tissue Spodoptera frugiperda
-
additional information mRNA coding for SLam is expressed along the whole midgut tissue, but not in the Malpighian tubules, fat body and carcass Spodoptera frugiperda
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
4480
-
pH 9.0, 30°C Spodoptera frugiperda

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
laminarin + H2O
-
Spodoptera frugiperda ?
-
?
additional information Enzyme shows low processivity of 0.4. No substrate: yeast beta-1,3-1,6-glucan or other polysaccharides. enzyme is unable to lyse Saccharomyces cerevisiae cells Spodoptera frugiperda ?
-
?

Subunits

Subunits Comment Organism
? x * 40400, calculated Spodoptera frugiperda

Synonyms

Synonyms Comment Organism
SLam
-
Spodoptera frugiperda

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
29
-
Laminarin pH 9.0, 30°C Spodoptera frugiperda

pI Value

Organism Comment pI Value Maximum pI Value
Spodoptera frugiperda calculated
-
6.1

Expression

Organism Comment Expression
Spodoptera frugiperda mRNA coding for SLam is expressed along the whole midgut tissue, but not in the Malpighian tubules, fat body and carcass additional information