methionine
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Introduction
One of the essential sulfur amino acids. Either cysteine or methionine is nutritionally required*. Either may be synthesized from the other, but without one, the other cannot be synthesized.*
* Homocysteine would also suffice.
Methionine is formed from methylation of homocysteine catalyzed by methionine synthase. It may also be formed from homocysteine & betaine in a reaction catalyzed by betaine homocysteine methyl- transferase.
Methionine combines with ATP to yield S-adenosylmethionine (SAM) in a reaction catalyzed by methionine adenosyltransferase.
Laboratory
More general terms
More specific terms
Additional terms
Component of
- histidine/isoleucine/leucine/lysine/methionine/phenylalanine/threonine/tryptophan/valine
- cysteine/lysine/methionine/superoxide dismutase
- cysteine/inositol/methionine/propionate/urea
- cysteine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/sodium chloride/threonine/tryptophan/valine
- arginine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/threonine/tryptophan/valine
- alanine/cysteine/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/threonine/tryptophan/valine
- alanine/arginine/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/threonine/tryptophan/tyrosine/valine
- alanine/arginine/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/potassium acetate/proline/serine/sodium chloride/threonine/tryptophan/tyrosine/valine
- alanine/arginine/glycine/histidine/isoleucine/leucine/lysine/magnesium chloride/methionine/phenylalanine/sodium acetate/sodium chloride/threonine/tryptophan/tyrosine/valine
- alanine/arginine/glycine/histidine/isoleucine/leucine/lysine/magnesium chloride/methionine/phenylalanine/potassium phosphate/proline/sodium acetate/sodium chloride/threonine/tryptophan/tyrosine/valine
- alanine/arginine/glycine/histidine/isoleucine/leucine/lysine/magnesium chloride/methionine/phenylalanine/potassium chloride/proline/serine/sodium chloride/sodium phosphate/threonine/tryptophan/tyrosine/valine
- alanine/arginine/glucose/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/threonine/tryptophan/tyrosine/valine
- alanine/arginine/glucose/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/threonine/tryptophan/tyrosine/valine
- alanine/arginine/glucose/glycine/histidine/isoleucine/leucine/lysine/magnesium chloride/methionine/phenylalanine/potassium phosphate/proline/sodium acetate/sodium chloride/threonine/tryptophan/tyrosine/valine
- alanine/arginine/cysteine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/threonine/tryptophan/valine
- alanine/arginine/cysteine/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/threonine/tryptophan/valine
- alanine/arginine/cysteine/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/potassium chloride/proline/serine/sodium acetate/sodium chloride/threonine/tyrosine/valine
- alanine/arginine/cysteine/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/phosphoric acid/proline/serine/threonine/tryptophan/valine
- alanine/arginine/cysteine/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/phosphoric acid/potassium chloride/proline/serine/sodium acetate/sodium chloride/threonine/tyrosine/valine
- alanine/arginine/calcium chloride/glucose/glycine/histidine/isoleucine/leucine/magnesium chloride/methionine/phenylalanine/potassium phosphate/proline/serine/sodium acetate/sodium chloride/threonine/tryptophan/tyrosine/valine
- alanine/arginine/calcium chloride/glucose/glycine/histidine/isoleucine/leucine/lysine/magnesium chloride/methionine/phenylalanine/potassium phosphate/proline/serine/sodium acetate/sodium chloride/threonine/tryptophan/tyrosine/valine
- alanine/arginine/calcium acetate/cysteine/glycerol/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/potassium chloride/proline/serine/sodium acetate/sodium chloride/threonine/tryptophan/valine
- alanine/arginine/calcium acetate/cysteine/glycerol/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/phosphoric acid/potassium chloride/proline/serine/sodium acetate/sodium chloride/threonine/tryptophan/valine
- alanine/arginine/aspartate/glutamate/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/threonine/tryptophan/tyrosine/valine
- alanine/arginine/aspartate/glutamate/glycine/histidine/isoleucine/leucine/lysine/magnesium chloride/methionine/phenylalanine/potassium chloride/proline/serine/sodium chloride/sodium phosphate/threonine/tryptophan/tyrosine/valine
- alanine/arginine/aspartate/glucose/glutamate/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/threonine/tryptophan/valine
- alanine/arginine/aspartate/glucose/glutamate/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/threonine/tryptophan/tyrosine/valine
- alanine/arginine/aspartate/glucose/glutamate/glycine/histidine/isoleucine/leucine/lysine/magnesium chloride/methionine/phenylalanine/potassium chloride/proline/serine/sodium chloride/sodium phosphate/threonine/tryptophan/tyrosine/valine
- alanine/arginine/aspartate/cysteine/glutamate/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/threonine/tryptophan/tyrosine/valine
- alanine/arginine/aspartate/cysteine/glutamate/glycine/histidine/isoleucine/leucine/lysine/methionine/phenylalanine/proline/serine/sodium acetate/sodium chloride/threonine/tryptophan/tyrosine/valine
- alanine/arginine/aspartate/calcium chloride/glucose/glutamate/glycine/histidine/isoleucine/leucine/lysine/magnesium chloride/methionine/phenylalanine/potassium chloride/potassium phosphate/proline/serine/sodium chloride/threonine/tryptophan/tyrosine/valine
- cysteine/inositol/methionine/urea
References
- ↑ Stryer Biochemistry WH Freeman & Co, New York, 1988 pg 582