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M9490731.TXT
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1994-09-24
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Document 0731
DOCN M9490731
TI A novel computational tool for automated structure-based drug design.
DT 9411
AU Bohm HJ; BASF AG, Central Research, Ludwigshafen, Germany.
SO J Mol Recognit. 1993 Sep;6(3):131-7. Unique Identifier : AIDSLINE
MED/94338754
AB The computer program LUDI for automated structure-based drug design is
described. The program constructs possible new ligands for a given
protein of known three-dimensional structure. This novel approach is
based upon rules about energetically favourable non-bonded contact
geometries between functional groups of the protein and the ligand which
are derived from a statistical analysis of crystal packings of organic
molecules. In a first step small fragments are docked into the protein
binding site in such a way that hydrogen bonds and ionic interactions
can be formed with the protein and hydrophobic pockets are filled with
lipophilic groups of the ligand. The program can then append further
fragments onto a previously positioned fragment or onto an already
existing ligand (e.g., a lead structure that one seeks to improve). It
is also possible to link several fragments together by bridge fragments
to form a complete molecule. All putative ligands retrieved or
constructed by LUDI are scored. We use a simple scoring function that
was fitted to experimentally determined binding constants of
protein-ligand complexes. LUDI is a very fast program with typical
execution times of 1-5 min on a work station and is therefore suitable
for interactive usage.
DE Animal Binding Sites *Drug Design Evaluation Studies Human HIV
Protease Inhibitors/CHEMISTRY In Vitro Ligands Protein Binding
*Software Trypsin/METABOLISM JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).