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Literature summary extracted from

  • Ren, X.; Tu, C.; Bhatt, D.; Perry, J.J.; Tainer, J.A.; Cabelli, D.E.; Silverman, D.N.
    Kinetic and structural characterization of human manganese superoxide dismutase containing 3-fluorotyrosines (2006), J. Mol. Struct., 790, 168-173.
No PubMed abstract available

Crystallization (Commentary)

EC Number Crystallization (Comment) Organism
1.15.1.1 crystal structures of unfluorinated and fluorinated enzyme are nearly superimposable. Ratio kcat/Km decreases from 0.8 per mM and s for wild-type to 0.03 per mM and s for the fluorinated mutant which is in significant part due to 3-fluorotyrosine residues distant from the active-site metal Homo sapiens

Protein Variants

EC Number Protein Variants Comment Organism
1.15.1.1 additional information replacement of all of the nine tyosine residues in each of the four enzyme subunits by 3-fluorotyrosine. Crystal structures of unfluorinated and fluorinated enzyme are nearly superimposable. Ratio kcat/Km decreases from 0.8 per mM and s for wild-type to 0.03 per mM and s for the fluorinated mutant which is in significant part due to 3-fluorotyrosine residues distant from the active-site metal Homo sapiens
1.15.1.1 Y34F about 12fold decrease in kcat value Homo sapiens

Organism

EC Number Organism UniProt Comment Textmining
1.15.1.1 Homo sapiens
-
manganese superoxide dismutase
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.15.1.1 O2- + H+
-
Homo sapiens O2 + H2O2
-
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Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
1.15.1.1 1100
-
O2- pH 7.5, 25°C, mutant Y34F with fluorinated Tyr-residues Homo sapiens
1.15.1.1 3300
-
O2- pH 7.5, 25°C, mutant Y34F Homo sapiens
1.15.1.1 4600
-
O2- pH 7.5, 25°C, wild-type with fluorinated Tyr-residues Homo sapiens
1.15.1.1 40000
-
O2- pH 7.5, 25°C, wild-type Homo sapiens