2002
DOI: 10.1016/s0022-2836(02)00554-5
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High-resolution Crystal Structures of Erythrina cristagalli Lectin in Complex with Lactose and 2′-α-l-Fucosyllactose and Correlation with Thermodynamic Binding Data

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Cited by 59 publications
(43 citation statements)
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“…2D). Both RCA-I and ECL recognize terminal Gal␤1-4GlcNAc (55)(56)(57)(58)(59), but the former has much higher affinity and also binds to Neu5Ac␣2-6Gal␤1-4GlcNAc with slightly lower affinity, whereas the latter can also bind Fuc␣1-2Gal␤1-4Glc (60). Consistent with these features, the binding pattern of RCA-I on this SGM was similar to the combined pattern of SNA and ECL (Fig.…”
Section: Resultssupporting
confidence: 70%
“…2D). Both RCA-I and ECL recognize terminal Gal␤1-4GlcNAc (55)(56)(57)(58)(59), but the former has much higher affinity and also binds to Neu5Ac␣2-6Gal␤1-4GlcNAc with slightly lower affinity, whereas the latter can also bind Fuc␣1-2Gal␤1-4Glc (60). Consistent with these features, the binding pattern of RCA-I on this SGM was similar to the combined pattern of SNA and ECL (Fig.…”
Section: Resultssupporting
confidence: 70%
“…Although the tertiary structure observed was superimposable on that of other legume lectins, the quaternary structure was markedly different from the canonical one, such as that of concanavalin A (which is devoid of carbohydrate); the same was found also for the structure of ECL recently solved in collaboration with Ute Krengel and colleagues from Göteborg University, Sweden (87). We originally assumed that the bulky N-linked carbohydrate of ECorL interfered with the formation of the canonical structure by the lectin.…”
Section: Identical Tertiary Structures Different Quaternary Structuresmentioning
confidence: 66%
“…Já as amidas 13a e 13b e as sulfonamidas 13c-e, derivadas da D-galactose (1), apresentaram, à exceção de 13b, afinidade nitidamente inferior a esta, em relação às duas lectinas. A afinidade da lactose (2), quatro vezes maior pela LEC e seis vezes pela RCA120, em relação à do monossacarídeo D-galactose, pode ser explicada pelas possibilidades de interações das lectinas com grupos hidroxila do resíduo de glicose, mediadas por moléculas de água 26,27 . A introdução dos grupos amido e sulfonamido na posição anomérica não promoveu o aumento das interações com as lectinas.…”
Section: Ensaio De Inibição De Hemaglutinaçãounclassified
“…As lectinas isoladas de espécies vegetais são especialmente utilizadas como sistema modelo para o estudo das bases moleculares do reconhecimento lectina-carboidrato pois, apesar da semelhança da estrutura primária destas proteínas, suas especificidades a carboidratos podem ser diferentes. Até o momento, as estruturas tridimencionais de cerca de 60 lectinas vegetais foram elucidadas por cristalografia de raios X, nas formas livres e complexadas com uma variedade de compostos ligantes 11,12 . A lectina isolada das sementes de Erythrina cristagalli (LEC) apresenta seletividade pelos monossacarídeos D-galactose e N-acetil-D-galactosamina 13 .…”
Section: Introductionunclassified