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Purification and Characterization of Liver Lectins from a Lizard,Sceloporus spinosus

机译:蜥蜴Sceloporus spinosus肝脏凝集素的纯化和鉴定

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This study discusses the purification of soluble beta-galactose lectins obtained from the lizard liver of Sceloporus spinosus.The first lectin named lizard hepatic lectin-1(LHL-1)presented a molecular weight of 31,750,with an isoelectric point of 4.25.The highest specific hemagglu-tinating activity was achieved using human blood type Al:N-acetilgalac-tosamine(GalNAc)-galactose(Gal)-fucose(Fuc).Carbohydrate inhibition assays indicated a higher lectin specificity tor GalNAc.For LHL-2 the molecular weight obtained was 23,850 with an isoelectric point of 3.25.The highest carbohydrate specificity was observed tor Gal.These lizard hepatic lectins are similar to the mammal hepatic lectins previously reported.However,it is different from the alligator hepatic lectin(AHL).The homology analyses of LHL-1 resulted in 100% identity with the Steroidogenic acute regulatory protein(StAR),while LHL-2 was similar to adenylate kinase(75% identity).We suggest that these liver lectins are related to the inherent functions of liver previously reported.
机译:这项研究讨论了从棘孢Sc的蜥蜴肝脏中获得的可溶性β-半乳糖凝集素的纯化方法。第一个名为蜥蜴肝凝集素-1(LHL-1)的凝集素的分子量为31,750,等电点为4.25,最高。使用人血型Al:N-乙炔半乳糖-氨基葡萄糖(GalNAc)-半乳糖(Gal)-岩藻糖(Fuc)可实现特定的血凝素活性。碳水化合物抑制试验表明GalNAc具有更高的凝集素特异性.LHL-2的分子量所获得的是23,850,等电点为3.25。在Gal上观察到了最高的碳水化合物特异性。这些蜥蜴肝凝集素与先前报道的哺乳动物肝凝集素相似,但是与扬子鳄肝凝集素(AHL)不同。 LHL-1的表达与类固醇急性调节蛋白(StAR)具有100%的同一性,而LHL-2与腺苷酸激酶相似(有75%的同一性)。先前曾报道过肝的遗传功能。

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