Heterogeneous humoral and hemocyte-associated lectins with N-acylaminosugar specificities from the blue crab, Callinectes sapidus Rathbun.

Heterogeneous humoral and hemocyte-associated lectins with N-acylaminosugar specificities from the blue crab, Callinectes sapidus Rathbun.
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来自蓝蟹 Callinectes sapidus Rathbun 的具有 N-酰氨基糖特异性的异质体液和血细胞相关凝集素。

DOI:
10.1016/0305-0491(86)90216-6
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发表时间:
1986
期刊:
Comparative biochemistry and physiology. B, Comparative biochemistry
影响因子:
--
通讯作者:
Vasta,GR
Vasta,GR
中科院分区:
--
文献类型:
--
作者:
Cassels,FJ;Marchalonis,JJ;Vasta,GR

文献摘要

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Callinectes sapidus serum and hemocyte microsomal fraction agglutinated a panel of untreated and enzyme treated vertebrate erythrocytes and cultured lymphoid cell lines. Crossed absorption experiments suggested the presence of multiple specific lectins in the serum. The microsomal fraction showed a 35-fold increase in specific activity when compared to the hemocyte lysate suggesting that hemocyte lectins are membrane-associated. Agglutination by serum and hemocyte lectins was inhibited by low concentrations of N-acylamino compounds including sialic, N-acetylmuramic and N-acetylglutamic acids, GalNAc, GlcNAc, ManNAc, and glycoproteins and polysaccharides which contain these carbohydrates: bovine submaxillary mucin, human orosomucoid, porcine stomach mucin and colominic acid. Hemagglutination by lectins of both serum and hemocyte microsomal fraction required divalent cations as suggested by the reduction in hemagglutination titer in the presence of the chelators EDTA, EGTA, CDTA and citrate.