Purification, characterization and immunolocalization of fimbrial protein from Porphyromonas (bacteroides) gingivalis.

Purification, characterization and immunolocalization of fimbrial protein from Porphyromonas (bacteroides) gingivalis.
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牙龈卟啉单胞菌(拟杆菌)菌毛蛋白的纯化、表征和免疫定位。

DOI:
10.1016/0006-291x(91)91624-l
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发表时间:
1991
影响因子:
3.1
通讯作者:
Genco,RJ
Genco,RJ
中科院分区:
生物学4区
文献类型:
--
作者:
Sojar,HT;Lee,JY;Bedi,GS;Cho,MI;Genco,RJ

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本文描述了在1%SDS和0.2M二价阳离子存在下,pH 6.5,通过优先分级分离从牙龈卟啉单胞菌中纯化43 kDa菌毛蛋白的快速和可重复的方法。纯化的43 kDa的同质性,通过SDS-PAGE和Western印迹分析,使用单克隆和多克隆抗体对这种蛋白质。纯化的菌毛的氨基酸组成和前30个氨基酸残基的氨基酸序列与从菌毛亚基的克隆基因预测的组成和序列一致。圆二色性光谱显示高水平的β-折叠结构。纯化的43 kDa的聚合物在电子显微镜下显示菌毛样形态。超微结构定位的43 kDa的蛋白质的免疫金技术揭示了特异性标记的菌毛直径约为3.5至5.0 nm。该蛋白的定位表明,43 kDa的组件是菌毛亚基。
Rapid and reproducible method is described here for the purification of the 43 kDa fimbrial protein from P. gingivalis by preferential fractionation in the presence of 1% SDS and 0.2 M of a bivalent cation at pH 6.5. Homogeneity of the purified 43 kDa was confirmed by SDS-PAGE and Western blot analysis using monoclonal and polyclonal antibodies raised against this protein. Amino acid composition and the amino acid sequence of the first 30 amino acid residues of the purified fimbriae are consistent with the composition and sequence predicted from the cloned gene of the fimbrial subunit. Circular dichroism spectra shows high levels of β-sheet structure. The purified 43 kDa polymer shows fimbriae-like morphology under the electron microscope. Ultrastructural localization of the 43 kDa protein by the immunogold technique revealed specific labeling of the fimbriae with a diameter of approximately 3.5 to 5.0 nm. Localization of this protein suggest that the 43 kDa component is a fimbrial subunit.
DOI: 10.1128/jb.160.3.949-957.1984
发表时间: 1984
影响因子: 3.2
作者:
F. Yoshimura;K. Takahashi;Y. Nodasaka;T. Suzuki
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DOI: 10.1093/infdis/143.3.325
发表时间: 1981-01-01
影响因子: 6.4
作者:
BEACHEY, EH
通讯作者: BEACHEY, EH
迪金森,D.P.:J.Bacteriol.170。
DOI: --
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影响因子: --
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DOI: 10.1016/0003-9969(74)90184-8
发表时间: 1974
影响因子: 3
作者:
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通讯作者: I. Takazoe
拟杆菌属物种的超微结构:Bacteroides asaccharolyticus、Bacteroides fragilis、Bacteroides melaninogenicus subspecies melaninogenicus 和 B. melaninogenicus subspecies intermedius。
DOI: --
发表时间: 1979
影响因子: 6.4
作者:
D. D. L. Woo;D. D. L. Woo;S. C. Holt;S. C. Holt;E. R. Leadbetter;E. R. Leadbetter
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