H-bonding side-chains

colby none at uiuc.edu
Wed Jun 2 17:44:00 EST 1999


Can the side chain of a tryptophan residue accept a H-bond? What about
an arginine residue?

According to http://swift.embl-heidelberg.de/future/aainfo/hbonds.html,
the only site on the web I found that discusses amino acid side chain
H-bonding, these two residues do not seem to accept H-bonds. Is it
because of steric hindrance by the atoms that the N-atoms are bonded to?
If so, why does it not affect the H-bond accepting capability of
histidine?

I appreciate any replies.





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