@article{3048384, title = "A triclinic crystal form of the lectin concanavalin A", author = "Kanellopoulos, PN and Tucker, PA and Pavlou, K and Agianian, B and and Hamodrakas, SJ", journal = "Journal of Structural Biology", year = "1996", volume = "117", number = "1", pages = "16-23", publisher = "ACADEMIC PRESS INC ELSEVIER SCIENCE", issn = "1047-8477, 1095-8657", doi = "10.1006/jsbi.1996.0065", abstract = "The molecular structure of a triclinic crystal form of concanavalin A has been refined at 2.4 Angstrom resolution. The crystals have unit cell dimensions a 78.8 Angstrom, b = 79.3 Angstrom, c = 133.3 Angstrom, alpha = 97.1 degrees, beta = 90.2 degrees, and gamma = 97.5 degrees and contain two tetramers per asymmetric unit each with approximate 222 symmetry. The final crystallographic R-factor is 0.205 and the free-R-factor is 0.265 in the resolution range 6.0 to 2.4 Angstrom The conformation of the tetramer is more similar to that found in concanavalin A saccharide complexes than in the previously reported I222 crystal form of uncomplexed concanavalin A. A comparison of the molecular packing between the two crystal forms shows a more open arrangement with large solvent channels through the crystal. (C) 1996 Academic Press, Inc." }