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Methyl halide transferase

FieldValue
NameMethyl halide transferase
EC_number2.1.1.165

Methyl halide transferase (, MCT, methyl chloride transferase, S-adenosyl-L-methionine:halide/bisulfide methyltransferase, AtHOL1, AtHOL2, AtHOL3, HMT, S-adenosyl-L-methionine: halide ion methyltransferase, SAM:halide ion methyltransferase) is an enzyme with systematic name S-adenosylmethionine:iodide methyltransferase. This enzyme catalyses the following chemical reaction

: S-adenosyl-L-methionine + iodide \rightleftharpoons S-adenosyl-L-homocysteine + methyl iodide

This enzyme contributes to the methyl halide emissions from Arabidopsis thaliana.

Chloride transfer

Main article: Chloromethane#Biogenesis

The salt marsh plant Batis maritima contains the enzyme methyl chloride transferase that catalyzes the synthesis of chloromethane (CH3Cl) from S-adenosine-L-methionine and chloride. This protein has been purified and expressed in E. coli, and seems to be present in other organisms such as white rot fungi (Phellinus pomaceus),

References

References

  1. (1999). "Expression of ''Batis maritima'' methyl chloride transferase in ''Escherichia coli''". Proc. Natl. Acad. Sci. USA.
  2. (1998). "Biochemical characterization of chloromethane emission from the wood-rotting fungus ''Phellinus pomaceus''". Appl. Environ. Microbiol..
  3. (1995). "Purification and characterization of a novel methyltransferase responsible for biosynthesis of halomethanes and methanethiol in ''Brassica oleracea''". J. Biol. Chem..
  4. (2009). "Involvement of ''S''-adenosylmethionine-dependent halide/thiol methyltransferase (HTMT) in methyl halide emissions from agricultural plants: isolation and characterization of an HTMT-coding gene from ''Raphanus sativus'' (daikon radish)". BMC Plant Biol..
  5. (2001). "Purification and characterization of a monohalomethane-producing enzyme ''S''-adenosyl-L-methionine: halide ion methyltransferase from a marine microalga, ''Pavlova pinguis''". Biosci. Biotechnol. Biochem..
  6. (2007). "Characterization of three halide methyltransferases in ''Arabidopsis thaliana''". Plant Biotechnol..
  7. (1998). "cDNA Cloning of ''Batis maritima'' Methyl Chloride Transferase". Proc Natl Acad Sci USA.
  8. (1999). "Expression of ''Batis maritima'' Methyl Chloride Transferase in ''Escherichia coli''". Proc Natl Acad Sci USA.
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