Young N M, Williams R E
Can J Biochem Cell Biol. 1985 Apr;63(4):268-71. doi: 10.1139/o85-039.
The circular dichroism (CD) spectra of thirteen lectins, most being specific for D-galactose or N-acetyl-D-galactosamine, were compared. Two groupings are proposed on the basis of the CD in the near-ultraviolet region. Group one comprises the lectins from Arachis hypogaea, Glycine max, Phaseolus coccineus, P. lunatus, P. vulgaris, and Vicia villosa, and group two comprises lectins from Caragana arborescens, Cytisus sessilifolius, Dolichos biflorus, Griffonia simplicifolia, and Wisteria floribunda. The CD spectra of lectins from Bauhinia purpurea and Sophora japonica were different from any of the other lectins. CD difference spectra produced by the two sugars were distinctive for each protein, suggesting that the combining sites of these lectins are not homologous despite similarities in specificity and that the CD spectral similarities arise from residues in other, more homologous regions of the proteins.
比较了13种凝集素的圆二色性（CD）光谱，其中大多数对D-半乳糖或N-乙酰-D-半乳糖胺具有特异性。根据近紫外区域的CD提出了两种分组。第一组包括来自花生、大豆、多花菜豆、利马豆、菜豆和绒毛野豌豆的凝集素，第二组包括来自树锦鸡儿、无叶锦鸡儿、双花扁豆、非洲灰毛豆和紫藤的凝集素。紫羊蹄甲和槐凝集素的CD光谱与其他任何凝集素都不同。两种糖产生的CD差异光谱对每种蛋白质都是独特的，这表明尽管这些凝集素在特异性上有相似之处，但其结合位点并非同源，并且CD光谱的相似性源于蛋白质其他更同源区域的残基。
