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首页> 外文期刊>Protoplasma: An International Journal of Cell Biology >Localisation of fucoxanthin chlorophyll a/c-binding polypeptides of the centric diatom Cyclotella cryptica by immuno-electron microscopy
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Localisation of fucoxanthin chlorophyll a/c-binding polypeptides of the centric diatom Cyclotella cryptica by immuno-electron microscopy

机译：免疫电子显微镜对中性硅藻小环藻隐藻中黄藻黄质叶绿素a / c结合多肽的定位

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摘要

Antisera were raised against the C termini of three fucoxanthin chlorophyll a/c-binding polypeptides, Fcp2, Fcp4, and Fcp6, of the centric diatom Cyclotella cryptica. Immunogold electron microscopy of ultrathin-sectioned cells indicated that Fcp2 and Fcp4 are present in almost the same amounts, whereas approximately 8- to 10-fold less gold label was registered for Fcp6. Immunogold electron microscopy of freeze-fracture replicas of thylakoid membranes showed that the C termini of at least Fcp2 and Fcp4 were located in the thylakoid lumen, thus demonstrating a 3-dimensional structure similar to that already described for the chlorophyll a/b-binding light-harvesting polypeptides of higher plants.
机译：抗血清针对中心硅藻小环藻Cyclotella cryptica的三种岩藻黄质叶绿素a / c结合多肽Fcp2，Fcp4和Fcp6的C末端产生抗血清。超薄切片细胞的免疫金电子显微镜检查表明，Fcp2和Fcp4的含量几乎相同，而Fcp6的金标记减少了约8至10倍。类囊体膜的冷冻断裂复制品的免疫金电子显微镜显示，至少Fcp2和Fcp4的C末端位于类囊体腔中，因此证明了3维结构类似于已经描述的叶绿素a / b结合光-收获高等植物的多肽。

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