Phaseolus vulgaris structure

Lasry L, Campos T, Morais SA, Colombo CA, Chioratto AF, Fernandes E, Lima LR, Pereira A (2007) Structure of genetic diversity among common bean (Phaseolus vulgaris L.) varieties of Mesoamerican and Andean origins using new developed microsatellite markers. Genet Resour Crop Evol 54 1747-1762... 

Papa R, Gepts P (2003) Asymmetry of gene flow and differential geographical structure of molecular diversity in wild and domesticated common bean (Phaseolus vulgaris L.) from Mesoamerica. Theor Appl Genet 106 239-250... 

Primary structure and differential expression of glutamine synthetase genes in nodules, roots and leaves of Phaseolus vulgaris. The EMBO Journal 5, 1429-35. 

Gebhardt, C., Olivier, J.E., Forde, B.G., Saarelainen, R. Miflin, B.J. (1986). Primary structure and differential expression of glutamine synthetase genes in nodules, roots and leaves of Phaseolus vulgaris. The EMBO Journal 5, 1429-35. 

Kasahara, K., Hayashi, K., Arakawa, T., Philo, J. S., Wen, J., Hara, S., and Yamaguchi, H. 1996. Complete sequence, subunit structure, and complexes with pancreatic a-amylase of an a-amylase inhibitor from Phaseolus vulgaris white kidney bean. J. Biochem 120, 177-183... 

In many respects, the finding of related isolectins (of BS I) closely parallels structural studies630 on Phaseolus vulgaris agglutinin (see Section VII,1). It will be interesting to determine whether there is sequence homology between BS I subunits A and B, like that between the two P. vulgaris subunits,630 and furthermore, to discover a structural basis for the observed differences in specificity. 

FIG. 13.—Schematic Representation of the Tetrameric Structure of the Five Isolectins from Phaseolus vulgaris. [Each form consists of various proportions of L (N-terminal Ser) and R (N-terminal Ala) subunits. From Ref. 630. (Published by permission ofProc. Natl. Acad. Sci. (7.S.A.)]... 

Among the plants thus far investigated, CS occurs most frequently and BL is the next one. Therefore, these two BRs are believed to be important. In most plants, several kinds of BRs are found. In this respect, it is interesting that more than 30 BRs including unknown compounds (partial structures being determined by GC/MS analysis) occur in immature seeds of Phaseolus vulgaris (24). Based on the data, it is likely that the number of natural BRs will increase in the future. 

Generally the most abundant sterol in higher plants is sitosterol which has a 24a-ethyl (Table 1), which accounts for about 50 to 80% of the total amount of plant sterols [16]. However, only seven species of 39 plants hitherto examined have been known to contain BRs with a 24a-ethyl and these are not major BRs except in the green alga Hydrodictyon reticulatum [18] (Tables 1 and 2). Furthermore, immature seed of Phaseolus vulgaris contains sitosterol as the major sterol (56% of the total sterol), however, corresponding BRs (28-homocastasterone and related BRs) were detected at very low levels [19]. On the other hand, campesterol and 24-methylene-25-methylenecholesterol each accounts for only about 3% of the total sterols. However, castasterone and 25-methyldolichosterone (and related BRs), which structurally correspond to these sterols, respectively, are major... 

Affinity chromatography on a lectin from Phaseolus vulgaris coupled to agarose has been used to purify human urinary erythropoietin. The structures (19)—(24) have been reported for glycosylated asparagines isolated from the urine of patients... 

Two groups of isolectins have been isolated from Phaseolus vulgaris seeds after chromatography on immobilized fetuin. Although the lectins in the two groups have similar amino-acid and sugar compositions, they share only a partial structural identity as demonstrated by immunochemical criteria. 

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