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PDBsum entry 1vln
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Contents |
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* Residue conservation analysis
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References listed in PDB file
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Key reference
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Title
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A triclinic crystal form of the lectin concanavalin a
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Authors
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P.N.Kanellopoulos,
P.A.Tucker,
K.Pavlou,
B.Agianian,
S.J.Hamodrakas.
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Ref.
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J Struct Biol, 1996,
117,
16-23.
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PubMed id
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Abstract
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The molecular structure of a triclinic crystal form of concanavalin A has been
refined at 2.4 A resolution. The crystals have unit cell dimensions a = 78.8 A,
b = 79.3 A, c = 133.3 A, alpha = 97.1degrees, beta = 90.2degrees, and gamma =
97.5degrees 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 A. 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.
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