alpha helical coiled coils in proteins

murphy kenneth p kpmurphy at blue.weeg.uiowa.edu
Fri Feb 18 14:22:40 EST 1994


In article <5C2B3F3EA6FF2090DC at JHUIGF.BITNET>,  <GEETHA at JHUIGF.BITNET> wrote:
>
>Hello Netters,
>Can anybody help me understand the difference between coiled coils and
>supercoils?   I believe, the alpha helical coiled coils is a result of
>packing interactions between parallel or antiparallel or relatively
>staggered axes.  It must be something analogous to the twisted beta
>sheets then. What are those supercoils? I might be wrong. Pl.help me.
>
>--Geetha.

Generally supercoiling refers to nucleic acids (especially plasmids) while
coiled coils are a protein structural motif.

Kip


-- 
Dr. Kenneth P. Murphy				e-mail: k-murphy at uiowa.edu
Department of Biochemistry			office: (319)335-8910
Univeristy of Iowa				lab:  (319)335-7936
Iowa City, IA 52242            		        FAX:  (319)335-9570



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