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首页> 外文期刊>Protoplasma: An International Journal of Cell Biology >Immunological homologues of the Arabidopsis thaliana beta 1 tubulin are polyglutamylated in Nicotiana tabacum
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Immunological homologues of the Arabidopsis thaliana beta 1 tubulin are polyglutamylated in Nicotiana tabacum

机译:拟南芥β1微管蛋白的免疫同源物在烟草中被聚谷氨酰化

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摘要

Peptide-specific antibody AABI, raised to the C-terminal 13 amino acids of Arabidopsis thaliana beta 1 tubulin, identifies a single electrophoretically separable beta-tubulin on 2-D-gel Western blots of total protein extracts from A. thaliana seedlings. We show that AABI crossreacts with two of the eight polyglutamylated beta-tubulin isoforms present in purified Nicotiana tabacum tubulin fractionated by high-resolution isoelectric focussing. Immunolocalisation studies using AAB1 revealed that the two N. tabacum polyglutamylated beta 1-tubulin isoforms are utilised in all four plant microtubule arrays (the interphase cortical array, the preprophase band, the spindle and the phragmoplast) indicating that there is no apparent subcellular sorting of these isotypes. [References: 34]
机译:拟南芥β1微管蛋白的C端13个氨基酸的肽特异性抗体AABI,在拟南芥幼苗总蛋白提取物的2-D凝胶Western印迹上鉴定了一个电泳可分离的β-微管蛋白。我们显示AABI与高分辨率的等电聚焦分离纯化的烟草烟草微管蛋白中存在的八个多聚谷氨酰β-微管蛋白同工型中的两个交叉反应。使用AAB1进行的免疫定位研究表明,在所有四个植物微管阵列(相间皮层阵列,前相带,纺锤体和原生质体)中均使用了两个烟草多谷氨酰胺化的β1-微管蛋白亚型,这表明没有明显的亚细胞分型。这些同种型。 [参考:34]

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