MadSci Network: Biochemistry
Query:

Re: In an amino acid there is an 'R' group. What does that R stand for?

Date: Thu Jan 31 12:04:51 2008
Posted By: Michael Onken, Moderator, MadSci Network
Area of science: Biochemistry
ID: 1201804798.Bc
Message:

R stands for "radical" and is used in organic chemistry to represent an unspecified side group (radical) or group of radicals. This is commonly used in describing families of compounds; for example, alcohols are R-OH, and amines are R-NH3, where R- represents an organic side group.


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