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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: Moazi on November 08, 2018, 01:11:20 AM

Title: R group of Methionine
Post by: Moazi on November 08, 2018, 01:11:20 AM
I cannot seem to find the name of the R group attached to the Methionine, it's driving me crazy. Please help.
Title: Re: R group of Methionine
Post by: Borek on November 08, 2018, 03:26:32 AM
Not sure what you mean, can you elaborate on the context?

R is typically used when referring to a group of compounds sharing some common part, methionine is a specific compound with well defined composition and structure.
Title: Re: R group of Methionine
Post by: sjb on November 08, 2018, 08:29:55 AM
Do you mean the R in the generic formula for α-amino acids - which for e.g. alanine is methyl?
Title: Re: R group of Methionine
Post by: Moazi on November 08, 2018, 02:07:33 PM
yes, for example it's Hydrogen in Glycine, Indole in Tryptophan and methyl in Alanine.
what about Methionine
Title: Re: R group of Methionine
Post by: Moazi on November 08, 2018, 04:16:21 PM
Not sure what you mean, can you elaborate on the context?

R is typically used when referring to a group of compounds sharing some common part, methionine is a specific compound with well defined composition and structure.

I mean what's the name of the Group attached to the the amino acid in methionine
Title: Re: R group of Methionine
Post by: wildfyr on November 08, 2018, 06:00:49 PM
I guess you would call it ethyl methyl sulfide or thioether
Title: Re: R group of Methionine
Post by: mjc123 on November 08, 2018, 11:08:17 PM
Or 2-(methylthio)ethyl.