Summary: force f. and sugar puckering

 here's summary of responses to following posting:
 >Subject: force field and sugar puckering
 >Dear netters,
 >can someone give hints, what force field or semiempirical method are
 >best for predicting sugar puckering of ribose (deoxyribose) in
 > Thanks,
 	From csonka "-at-" web  Fri Nov 10 18:12:56 1995
 	<strajbl> Subject: Re: CCL:force field and sugar puckering
 	Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii
 	Status: RO
 	MM3(92) will do. See the Dowd, French paper in Carbohydr. Res.
 	264 (1994) 1.  I think MM2 will be ok too.
 	Gabor I. Csonka                 Budapest University of
 	Technology FAX: (361) 463.36.42            Inorganic Chemistry
 	Dept. Ch. Bldg csonka "-at-"           H-1111, Bp.
 	Szent Gellert ter 4
 	From box "-at-"  Fri Nov 10 19:34:03 1995
 	CHEMISTRY "-at-", strajbl Subject: Re:  CCL:force field and
 	sugar puckering Status: RO
 	You can try STR3DI.EXE which has a new force field specifically
 	designed to incorporate lone pairs into molecular mechanics.
 	Look at the web page for Exorga Inc., who are the distributors
 	of the program.
 	From scott "-at-"  Fri Nov 10 20:28:52 1995
 	scott "-at-" (Scott Struthers) Subject: Re: CCL:force
 	field and sugar puckering Status: RO
 	Contact Carl Ewig (carl "-at-" or Arnie
 	Hagler(arnie "-at-"  They recently finished a whole bunch
 	of work on exactly this subject, both quantum and force field
 	   R. Scott Struthers, Ph.D.    (e-mail:
 	   scott "-at-" Co-Founder Director, Business
 	   ScienceMedia Inc.                     Phone: (619) 943-0545
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 	   Encinitas, CA  92024
 	From chpajt "-at-"  Fri Nov 10 22:19:31 1995
 	I would suggest Charmm - I would avoid AM1 or PM3.  I would be
 	very interested in any other replies - please sould you summery
 	to the list.
 	All the best
 	Alex (see my web page about comformational errors in AM1)
 	+--------------------------------------------------+ |Alternate
 	E-mail A.J.Turner "-at-"            | |www home  "-at-"|
 	From al "-at-"  Fri Nov 10 23:20:23 1995
 	Alfred French uses MM3 almost exclusively for his carbohydrate
 	work.  He is perhaps the expert in the field;  he has edited an
 	ACS symposium volume.
 					Alfred Lowrey