Related lectins from snowdrop and maize differ in their carbohydrate-binding specificity.
Related lectins from snowdrop and maize differ in their carbohydrate-binding specificity.
复制标题
来自雪花莲和玉米的相关凝集素在碳水化合物结合特异性上有所不同。
DOI:
10.1016/j.bbrc.2009.01.048
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发表时间:
2009-03-06
影响因子:
3.1
通讯作者:
Van Damme, Els J. M.
中科院分区:
文献类型:
--
作者:
Fouquaert, Elke;Smith, David F.;Peumans, Willy J.;Proost, Paul;Balzarini, Jan;Savvides, Savvas N.;Van Damme, Els J. M.
关键词:
Searches in an EST database from maize revealed the expression of a protein related to the Galanthus nivalis (GNA) agglutinin, referred to as GNAmaize. Heterologous expression of GNAmaize in Pichia pastoris allowed characterisation of the first nucleocytoplasmic GNA homolog from plants. GNAmaize is a tetrameric protein which shares 64% sequence similarity with GNA. Glycan microarray analyses revealed important differences in the specificity. Unlike GNA, which binds strongly to high-mannose N-glycans, the lectin from maize reacts almost exclusively with more complex glycans. Interestingly, GNAmaize prefers complex glycans containing β1-2 GlcNAc residues. The obvious difference in carbohydrate-binding properties is accompanied by a 100-fold reduced anti-HIV activity. Although the sequences of GNA and GNAmaize are clearly related they show only 28% sequence identity. Our results indicate that gene divergence within the family of GNA-related lectins leads to changes in carbohydrate binding specificity, as shown on N-glycan arrays.
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DOI:
10.1038/nrmicro1707
发表时间:
2007-08
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
Balzarini J
通讯作者:
Balzarini J
DOI:
10.1073/pnas.0407902101
发表时间:
2004-12-07
影响因子:
11.1
作者:
Blixt, O;Head, S;Paulson, JC
通讯作者:
Paulson, JC
影响因子:
4.8
作者:
Tsutsui, S;Tasumi, S;Suzuki, Y
通讯作者:
Suzuki, Y
影响因子:
64.8
作者:
LAEMMLI, UK
通讯作者:
LAEMMLI, UK
影响因子:
2.9
作者:
BRADFORD, MM
通讯作者:
BRADFORD, MM