April 19, 2019, 04:47:41 AM
Forum Rules: Read This Before Posting


Topic: R group of Methionine  (Read 1248 times)

0 Members and 1 Guest are viewing this topic.

Offline Moazi

  • New Member
  • **
  • Posts: 3
  • Mole Snacks: +0/-1
R group of Methionine
« on: November 08, 2018, 07:11:20 AM »
I cannot seem to find the name of the R group attached to the Methionine, it's driving me crazy. Please help.

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 24934
  • Mole Snacks: +1636/-395
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: R group of Methionine
« Reply #1 on: November 08, 2018, 09:26:32 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.
Chembuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info, PZWT_s1

Offline sjb

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 3373
  • Mole Snacks: +212/-41
  • Gender: Male
Re: R group of Methionine
« Reply #2 on: November 08, 2018, 02:29:55 PM »
Do you mean the R in the generic formula for α-amino acids - which for e.g. alanine is methyl?

Offline Moazi

  • New Member
  • **
  • Posts: 3
  • Mole Snacks: +0/-1
Re: R group of Methionine
« Reply #3 on: November 08, 2018, 08:07:33 PM »
yes, for example it's Hydrogen in Glycine, Indole in Tryptophan and methyl in Alanine.
what about Methionine

Offline Moazi

  • New Member
  • **
  • Posts: 3
  • Mole Snacks: +0/-1
Re: R group of Methionine
« Reply #4 on: November 08, 2018, 10:16:21 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

Offline wildfyr

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 1190
  • Mole Snacks: +136/-9
Re: R group of Methionine
« Reply #5 on: November 09, 2018, 12:00:49 AM »
I guess you would call it ethyl methyl sulfide or thioether

Offline mjc123

  • Chemist
  • Sr. Member
  • *
  • Posts: 1556
  • Mole Snacks: +224/-9
Re: R group of Methionine
« Reply #6 on: November 09, 2018, 05:08:17 AM »
Or 2-(methylthio)ethyl.

Sponsored Links