BL/CH 401 Lecture #4 -- Amino Acid Structures

Thiol Ether NON-POLAR AMINO ACID

Non-Polar -- Thiol Ether -- Met (Methionine) -- in computers Met = M

{*Figure 10*}

Met introduces the important Sulfur element into proteins which is found in Cys also (see below).

Met contains a thiol ether (R-S-R) in its side chain, which is much less polar

than an oxy-ether (R-O-R) like the compound we call ether, which is an polar organic solvent.

Met is a very hydrophobic AA.

©Wilbur H. Campbell, 1995, 1996; wcampbel@mtu.edu

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