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Literature summary for 4.2.2.3 extracted from

  • Nakada, H.I.; Sweeny, P.C.
    Alginic acid degradation by eliminases from abalone hepatopancreas (1967), J. Biol. Chem., 242, 845-851.
    View publication on PubMed

General Stability

General Stability Organism
inactivated by repeated freezing and thawing Haliotis rufescens
inactivated by repeated freezing and thawing Haliotis corrugata

Metals/Ions

Metals/Ions Comment Organism Structure
K+ maximal activation at 0.05 M Haliotis rufescens
K+ maximal activation at 0.05 M Haliotis corrugata
Mg2+ maximal activation at 0.06-0.08 M Haliotis rufescens
Mg2+ maximal activation at 0.06-0.08 M Haliotis corrugata
Mn2+ maximal activation at 0.06-0.08 M Haliotis rufescens
Mn2+ maximal activation at 0.06-0.08 M Haliotis corrugata
Na+ maximal activation at 0.05 M Haliotis rufescens
Na+ maximal activation at 0.05 M Haliotis corrugata

Organism

Organism UniProt Comment Textmining
Haliotis corrugata
-
pink abalone
-
Haliotis rufescens
-
california red abalone
-

Source Tissue

Source Tissue Comment Organism Textmining
hepatopancreas
-
Haliotis rufescens
-
hepatopancreas
-
Haliotis corrugata
-

Storage Stability

Storage Stability Organism
-15°C, 4 months, stable Haliotis rufescens
-15°C, 4 months, stable Haliotis corrugata

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
alginate degradation of a greater percentage of the mannuronic acid-rich fractions than of glucuronic acid-rich fractions or the original alginate Haliotis rufescens oligouronides
-
?
alginate degradation of a greater percentage of the mannuronic acid-rich fractions than of glucuronic acid-rich fractions or the original alginate Haliotis corrugata oligouronides
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.4 7.6
-
Haliotis rufescens
7.4 7.6
-
Haliotis corrugata

pH Range

pH Minimum pH Maximum Comment Organism
additional information
-
-
Haliotis rufescens
additional information
-
-
Haliotis corrugata