Selenomethionine: Difference between revisions

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	Selenomethionine is methionine in which the sulfur atom is replaced by selenium. Methionine is one of the [[amino acids\|20 standard amino acids]] (see [https://en.wikipedia.org/wiki/Methionine Methionine in Wikipedia]).		Selenomethionine is methionine in which the sulfur atom is replaced by selenium. Methionine is one of the [[amino acids\|20 standard amino acids]] (see [https://en.wikipedia.org/wiki/Methionine Methionine in Wikipedia]). Selenomethionine occurs naturally (see [https://en.wikipedia.org/wiki/Selenomethionine Selenomethionine in Wikipedia) but is also introduced artificially into proteins prior to crystallization in order to solve phases by multi-wavelength anomalous dispersion (MAD; see [https://en.wikipedia.org/wiki/Multi-wavelength_anomalous_dispersion MAD in Wikipedia).