Structural highlights
Function[PHSB_PHAVU] Major seed storage protein. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe refinement to 2.2 A resolution of the three-dimensional structure of the seed storage protein phaseolin from the French bean (Phaseolus vulgaris) via an alternative crystal form is described. The refined structure reveals details of the molecule hitherto unobserved and in particular we identify the structural role of conserved residues within the broader 7 S (vicilin) family of seed storage proteins. On this basis we are able to postulate a canonical model for the structure of the 7 S proteins. This model in turn provides a means for interpreting the structure of the 11 S (legumin) family of seed storage proteins, for which no X-ray diffraction data are available. The 11 S proteins are shown to bear a much closer relationship to the 7 S proteins than was previously recognized. The canonical model of the 7 S protein structure also provides a basis for proposing engineered mutations of these proteins with the goal of enhancing nutritional and functional properties. Structure of phaseolin at 2.2 A resolution. Implications for a common vicilin/legumin structure and the genetic engineering of seed storage proteins.,Lawrence MC, Izard T, Beuchat M, Blagrove RJ, Colman PM J Mol Biol. 1994 May 20;238(5):748-76. PMID:8182747[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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