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Literature summary for 4.2.2.13 extracted from

  • Yu, S.; Kenne, L.; Pedersen, M.
    alpha-1,4-Glucan lyase, a new class of starch/glycogen degrading enzyme. I. Efficient purification and characterization from red seaweeds (1993), Biochim. Biophys. Acta, 1156, 313-320.
    View publication on PubMed

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
98000
-
gel filtration Gracilariopsis lemaneiformis
111000
-
1 * 111000, SDS-PAGE Gracilariopsis lemaneiformis

Organism

Organism UniProt Comment Textmining
Gracilaria gracilis
-
-
-
Gracilariopsis lemaneiformis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Gracilariopsis lemaneiformis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
93.3
-
-
Gracilariopsis lemaneiformis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
Amylopectin
-
Gracilariopsis lemaneiformis Glucose + 1,5-anhydro-D-fructose
-
?
Glycogen
-
Gracilariopsis lemaneiformis ?
-
?
Maltoheptaose
-
Gracilariopsis lemaneiformis ?
-
?
Maltose
-
Gracilariopsis lemaneiformis Glucose + 1,5-anhydro-D-fructose
-
?
Maltotetraose
-
Gracilariopsis lemaneiformis ?
-
?
Pullulan
-
Gracilariopsis lemaneiformis ?
-
?

Subunits

Subunits Comment Organism
monomer 1 * 111000, SDS-PAGE Gracilariopsis lemaneiformis

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
maltose or amylopectin as substrate Gracilariopsis lemaneiformis

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
33 65 about 50% of maximal activity at 33°C and 65°C Gracilariopsis lemaneiformis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
70
-
in absence of substrate, complete loss of activity after 5 min Gracilariopsis lemaneiformis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
2.5 7 maltose as substrate Gracilariopsis lemaneiformis
3.5 7.5 amylopectin as substrate Gracilariopsis lemaneiformis