Lectins: a primer for histochemists and cell biologists
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- 作者：Joachim C. Manning ; Antonio Romero ; Felix A. Habermann…
- 关键词：Agglutinin ; Glycoprotein ; Glycosylation ; Protein fold ; Sialylation
- 刊名：Histochemistry and Cell Biology
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：147
- 期：2
- 页码：199-222
- 全文大小：
- 刊物类别：Medicine
- 刊物主题：Biomedicine, general; Cell Biology; Biochemistry, general; Developmental Biology;
- 出版者：Springer Berlin Heidelberg
- ISSN：1432-119X
- 卷排序：147
文摘
An experimental observation on selecting binding partners underlies the introduction of the term ‘lectin’. Agglutination of erythrocytes depending on their blood-group status revealed the presence of activities in plant extracts that act in an epitope-specific manner like antibodies. As it turned out, their binding partners on the cell surface are carbohydrates of glycoconjugates. By definition, lectins are glycan-specific (mono- or oligosaccharides presented by glycoconjugates or polysaccharides) receptors, distinguished from antibodies, from enzymes using carbohydrates as substrates and from transporters of free saccharides. They are ubiquitous in Nature and structurally widely diversified. More than a dozen types of folding pattern have evolved for proteins that bind glycans. Used as tool, this capacity facilitates versatile mapping of glycan presence so that plant/fungal and also animal/human lectins have found a broad spectrum of biomedical applications. The functional pairing with physiological counterreceptors is involved in a wide range of cellular activities from cell adhesion, glycoconjugate trafficking to growth regulation and lets lectins act as sensors/effectors in host defense.