Booij P, Demel R A, de Pater B S, Kijne J W
Institute of Molecular Plant Sciences, Leiden University, Netherlands.
Plant Mol Biol. 1996 Apr;31(1):169-73. doi: 10.1007/BF00020617.
Pea lectin (PSL) is a secretory sugar-binding protein, readily soluble in aqueous solutions of low osmolarity. However, PSL also appears to be associated with the plasma membrane at the tip of young pea root hairs. By using the Wilhelmy plate method, we found that PSL can insert into a lipid monolayer. This property appeared to be independent of the sugar-binding ability of the protein. This result suggests that PSL may be directly involved in membrane-mediated interactions with saccharide ligands, for example during root hair infection by symbiotic rhizobia.
豌豆凝集素（PSL）是一种分泌型糖结合蛋白，易溶于低渗透压的水溶液。然而，PSL似乎也与豌豆幼根毛尖端的质膜有关。通过使用威尔海姆平板法，我们发现PSL可以插入脂质单分子层。这种特性似乎与该蛋白的糖结合能力无关。这一结果表明，PSL可能直接参与与糖类配体的膜介导相互作用，例如在共生根瘤菌感染根毛的过程中。
