title: EXTRACT: a program to extract three-dimensional coordinates from stereo diagrams of proteins.
abstract: The program EXTRACT has been developed to extract accurate three-dimensional coordinates from published stereo alpha-carbon diagrams of protein structures. The approach is based on the display of scanned images of the left and right eye views of the diagram on a stereo-equipped workstation, allowing construction of a molecular model using the diagram as a guide. A number of structural checks assess the building, including probability maps derived for alpha-carbon geometry in protein structures. The procedure has also been extended to produce less accurate models from mono images.
authors.affiliation: Department of Chemistry, University of York, Heslington, U.K.
authors.forename: T J
authors.initials: TJ
authors.lastname: Oldfield
authors.forename: R E
authors.initials: RE
authors.lastname: Hubbard
mesh_terms: D000818:Animals; D003196:Computer Graphics; D007091:Image Processing, Computer-Assisted; D007375:Interleukin-1 / Q000737:chemistry; D008958:Models, Molecular; D009211:Myoglobin / Q000737:chemistry; D011487:Protein Conformation; D011506:Proteins / Q000737:chemistry*; D012984:Software; D012985:Software Design; D013237:Stereoisomerism
chemical_list: D007375:Interleukin-1; D009211:Myoglobin; D011506:Proteins