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Literature summary extracted from

  • Shiozaki, K.; Ryuzono, S.; Matsushita, N.; Ikeda, A.; Takeshita, K.; Chigwechokha, P.K.; Komatsu, M.; Miyagi, T.
    Molecular cloning and biochemical characterization of medaka (Oryzias latipes) lysosomal neu4 sialidase (2014), Fish Physiol. Biochem., 40, 1461-1472.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.2.1.18 expressed in HEK-293 cells Oryzias latipes

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.2.1.18 lysosome
-
Oryzias latipes 5764
-
3.2.1.18 mitochondrion
-
Oryzias latipes 5739
-

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.18 Oryzias latipes L0N7M7 medaka
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.18 brain highest expression Oryzias latipes
-
3.2.1.18 embryo
-
Oryzias latipes
-
3.2.1.18 liver
-
Oryzias latipes
-
3.2.1.18 muscle
-
Oryzias latipes
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.18 3'-sialyllactose + H2O
-
Oryzias latipes sialic acid + ?
-
?
3.2.1.18 4-methylumbelliferyl-alpha-D-N-acetylneuraminic acid + H2O
-
Oryzias latipes 4-methylumbelliferone + N-acetylneuraminic acid
-
?
3.2.1.18 6'-sialyllactose + H2O
-
Oryzias latipes sialic acid + lactose
-
?
3.2.1.18 additional information no activity with mucin, colominic acid, gangliosides and fetuin Oryzias latipes ?
-
?

Synonyms

EC Number Synonyms Comment Organism
3.2.1.18 NEU4
-
Oryzias latipes
3.2.1.18 sialidase 4
-
Oryzias latipes

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.18 37
-
-
Oryzias latipes

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.18 4.6
-
-
Oryzias latipes

pH Range

EC Number pH Minimum pH Maximum Comment Organism
3.2.1.18 8
-
the enzyme shows broad pH specificity of sialidase activity even at neutral and alkaline pH with 30% activity remaining at pH 8.0 Oryzias latipes

Expression

EC Number Organism Comment Expression
3.2.1.18 Oryzias latipes the enzyme is upregulated at late developmental stage in embryo up