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IUBMB Comments The enzyme was isolated from the bacterium Saccharopolyspora spinosa , where it is involved in the biosynthesis of spinosyn A, an active ingredient of several commercial insecticides.
The expected taxonomic range for this enzyme is: Saccharopolyspora spinosa
Synonyms SpnS, TDP-4-amino-2,3,6-trideoxy-D-glucose N,N-dimethyltransferase, more
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TDP-4-amino-2,3,6-trideoxy-D-glucose N,N-dimethyltransferase
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SpnS
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2 S-adenosyl-L-methionine + dTDP-4-amino-2,3,4,6-tetradeoxy-alpha-D-erythro-hexopyranose = 2 S-adenosyl-L-homocysteine + dTDP-alpha-D-forosamine
overall reaction
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S-adenosyl-L-methionine + dTDP-4-(methylamino)-2,3,4,6-tetradeoxy-alpha-D-erythro-hexopyranose = S-adenosyl-L-homocysteine + dTDP-alpha-D-forosamine
(1b)
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S-adenosyl-L-methionine + dTDP-4-amino-2,3,4,6-tetradeoxy-alpha-D-erythro-hexopyranose = S-adenosyl-L-homocysteine + dTDP-4-(methylamino)-2,3,4,6-tetradeoxy-alpha-D-erythro-hexopyranose
(1a)
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S-adenosyl-L-methionine:dTDP-4-amino-2,3,4,6-tetradeoxy-alpha-D-erythro-hexopyranose N,N-dimethyltransferase
The enzyme was isolated from the bacterium Saccharopolyspora spinosa, where it is involved in the biosynthesis of spinosyn A, an active ingredient of several commercial insecticides.
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S-adenosyl-L-methionine + dTDP-4-amino-2,3,4,6-tetradeoxy-alpha-D-erythro-hexopyranose
S-adenosyl-L-homocysteine + dTDP-alpha-D-forosamine
Substrates: - Products: -
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S-adenosyl-L-methionine + dTDP-4-amino-2,3,4,6-tetradeoxy-alpha-D-erythro-hexopyranose
S-adenosyl-L-homocysteine + dTDP-alpha-D-forosamine
Substrates: - Products: -
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Mg2+
2 mM used in assay conditions
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UniProt
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Highest Expressing Human Cell Lines
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Cell Line Links
Gene Links
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SPNS_SACSN
249
0
27669
Swiss-Prot
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28000
2 * 28000, SDS-PAGE
28730
2 * 28730, calculated from amino acid sequence
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homodimer
2 * 28730, calculated from amino acid sequence
homodimer
2 * 28000, SDS-PAGE
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Ni-NTA column chromatography and Sephacryl S-200 gel filtration
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expressed in Escherichia coli BL21(DE3) cells
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Hong, L.; Zhao, Z.; Melancon III, C.; Zhang, H.; Liu, H.
In vitro characterization of the enzymes involved in TDP-D-forosamine biosynthesis in the spinosyn pathway of Saccharopolyspora spinosa
J. Am. Chem. Soc.
130
4954-4967
2008
Saccharopolyspora spinosa (Q9ALP0)
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