Calcium channels



 Is anyone aware of studies (or will share their own) which deal with the
 structure of calcium channels?  Our literature searches have given many
 references to (Q)SAR of calcium agonists/antagonists, but none of the
 papers appears to extrapolate from the immediate question to inferences
 about the (local) structure of the binding site, much less the total
 structure.
 If there are no known (ultra)structural studies, a pointer to a reference
 which addresses the question of receptor geometry and/or features inferred
 from SAR of drugs would still be of interest.
 I will summarize useful replies to the Net.
 sb
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   Stephen B. Bowlus, Ph.D.                Computer-Aided Molecular Design
                                           Research Division
   e-mail: bowlus $#at#$ sandoz.com               Sandoz Agro, Inc.
   Phone:  + 1 415 354 3904                975 California Ave.
   Fax:    + 1 415 857 1125                Palo Alto, CA 94304
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