不同物种间分泌成分与免疫球蛋白相互作用的比较。
A comparison of secretory component - immunoglobulin interactions amongst different species.
作者信息
Underdown B J, Socken D J
出版信息
Adv Exp Med Biol. 1978;107:503-11. doi: 10.1007/978-1-4684-3369-2_57.
PMID:742501
Abstract
- SC from many species may be isolated by affinity chromatography to human IgA-Sepharose. 2) In some species SC may exist in two molecular forms. 3) The SC-binding sites on polymeric IgA and IgM are not identical. 4) In some species SC binds to IgM with higher affinity than to polymeric IgA while in other species SC binds best to polymeric IgA. This difference may influence the relative concentrations of these two immunoglobulin classes in the secretions of different species. 5) The SC-binding site is present on high molecular weight immunoglobulin in species as primitive as the nurse shark.
摘要
- 许多物种的分泌片可通过亲和层析法从人IgA-琼脂糖凝胶中分离出来。2) 在某些物种中，分泌片可能以两种分子形式存在。3) 聚合型IgA和IgM上的分泌片结合位点并不相同。4) 在某些物种中，分泌片与IgM的结合亲和力高于与聚合型IgA的结合亲和力，而在其他物种中，分泌片与聚合型IgA的结合效果最佳。这种差异可能会影响这两类免疫球蛋白在不同物种分泌物中的相对浓度。5) 在像护士鲨这样原始的物种中，分泌片结合位点存在于高分子量免疫球蛋白上。
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