Studies on synthetic pathway of xylose-containing N-linked oligosaccharides deduced from substrate specificities of the processing enzymes in sycamore cells (Acer pseudoplatanus L.).

Studies on synthetic pathway of xylose-containing N-linked oligosaccharides deduced from substrate specificities of the processing enzymes in sycamore cells (Acer pseudoplatanus L.).
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从梧桐细胞(Acer pseudoplatanus L.)加工酶的底物特异性推导的含木糖N-连接寡糖的合成途径的研究。

DOI:
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发表时间:
1992
期刊:
European Journal of Biochemistry
影响因子:
--
通讯作者:
N. Takahashi
N. Takahashi
中科院分区:
--
文献类型:
--
作者:
K. Tezuka;M. Hayashi;H. Ishihara;T. Akazawa;N. Takahashi

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我们用荧光标记的低聚糖作为转移酶反应的受体底物,测定了悬浮液培养的槭树(Acer pseudoplatanus L.)高尔基部分中α -1,3-甘露糖基糖蛋白β -1,2- n-乙酰氨基葡萄糖转移酶、α -1,6-甘露糖基糖蛋白β -1,2- n-乙酰氨基葡萄糖转移酶、β -1,4-甘露糖基糖蛋白β -1,2-木糖基转移酶和糖蛋白3- α -l -聚焦转移酶的活性。利用高效液相色谱法对反应生成的吡啶层合寡糖的结构进行了分析。我们证明(公式;见正文)是通过这些体外反应加工产生的。在此基础上,探讨了植物糖蛋白中含n -链低聚糖木糖的生物合成途径。
We measured the activities of alpha-1,3-mannosyl-glycoprotein beta-1,2-N-acetylglucosaminyltransferase, alpha-1,6-mannosyl-glycoprotein beta-1,2-N-acetylglucosaminyltransferase, beta-1,4-mannosyl-glycoprotein beta-1,2-xylosyltransferase and glycoprotein 3-alpha-L-fucosyltransferase in the Golgi fraction of suspension-cultured cells of sycamore (Acer pseudoplatanus L.) using fluorescence-labelled oligosaccharides as acceptor substrates for these transferase reactions. The structures of the pyridylaminated oligosaccharides produced by these reactions were analyzed by two-dimensional sugar mapping using high-performance liquid chromatography. We demonstrated that (formula; see text) was processed to produce by these in vitro reactions. On the basis of these results, we discuss a biosynthetic pathway for xylose containing N-linked oligosaccharides in plant glycoproteins.
DOI: 10.1021/bi00460a030
发表时间: 1990-02
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影响因子: 2.9
作者:
G. Kaushal;T. Szumiło;I. Pastuszak;A. Elbein
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DOI: --
发表时间: 1990
期刊: The Journal of biological chemistry
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作者:
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DOI: 10.1073/pnas.78.12.7393
发表时间: 1981-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
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通讯作者: VOSBECK, K