The evolution of H+-ATPases.

The evolution of H+-ATPases.
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H-ATP酶的进化。

DOI:
10.1016/0968-0004(89)90134-5
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发表时间:
1989
影响因子:
13.8
通讯作者:
L. Taiz
L. Taiz
中科院分区:
生物学1区
文献类型:
--
作者:
N. Nelson;L. Taiz

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自从Peter Mitchell的开创性工作以来,质子梯度在生物能量转换中的核心作用已被广泛认可。直接参与产生和利用质子梯度能量的酶(H+-ATP酶)几乎存在于所有细胞中,并且可能在细胞进化的早期就出现了。已经提出它们最初作为pH-稳态机制起作用,处理由发酵代谢产生的过量质子3 '4。H+-ATP酶的古老性使其成为进化研究中有吸引力的酶家族,特别是因为功能限制在各个王国之间保留了高度的序列相似性。事实上,对真核生物H ~+-ATP酶序列的分析为线粒体和叶绿体的内共生起源提供了强有力的支持。最近,一类新的质子ATP酶被鉴定出来,即液泡ATP酶(V-ATP酶),它与真核生物的内膜系统特异性相关。V-ATP酶与原核细胞质膜H+-ATP酶的结构和性质的比较现在为真核宿主细胞1的可能起源提供了意想不到的见解(Gogarten,JP,Kibak,H.,塔伊兹湖,Bowman,EJ,Bowman,BJ,Manolson,MF,Poole,RJ,Denda,K.大岛,T.,Konishi,J.,日期,T。和Yoshida,M.,提交)。
Since the pioneering work of Peter Mitchell 1, the central role of proton gradients in biological energy transduction has been widely ackrLowledged. The enzymes directly involved in generating and harnessing the energy of proton gradients (H+-ATPases), are found in nearly all cells and presumably appeared very early in cell evolution 2. It has been suggested that they originally functioned as a pH-stat mechanism, disposing of the excess protons generated by fermentative metabolism 3'4. The antiquity of the H+-ATPases makes them an attractive family of enzymes for evolutionary studies, particularly since functional constraints have preserved a high degree of sequence similarity across kingdoms. Indeed, analyses of eubacterial H+-ATPase sequences l'lave provided strong support for the endosymbiotic origin of mitochondria and chloroplasts 5.Recently, a new class of proton ATPases has been identified, the vacuolar ATPase (V-ATPase), which is specifically associated with the endomembrane system of eukaryotes 6-1~. Comparisons of the structure and properties of the V-ATPases with those of prokaryotic plasma membrane H+-ATPases are now providing unexpected insights into the possible origin of the eukaryotic host cell 1~(Gogarten, JP, Kibak, H., Taiz, L., Bowman, EJ, Bowman, BJ, Manolson, MF, Poole, RJ, Denda, K., Oshima, T., Konishi, J., Date, T. and Yoshida, M., submitted).
网格蛋白包被的囊泡质子易位复合物的二环己基碳二亚胺敏感质子孔的分离和重建。
DOI: --
发表时间: 1987
期刊: The Journal of biological chemistry
影响因子: --
作者:
Sun,SZ;Xie,XS;Stone,DK
通讯作者: Stone,DK
DOI: 10.1016/s0021-9258(18)68175-x
发表时间: 1988-10
期刊: The Journal of biological chemistry
影响因子: --
作者:
E. J. Bowman;Karen Tenney;B. Bowman
通讯作者: E. J. Bowman;Karen Tenney;B. Bowman
DOI: --
发表时间: 1988
期刊: The Journal of biological chemistry
影响因子: --
作者:
Bowman,BJ;Allen,R;Wechser,MA;Bowman,EJ
通讯作者: Bowman,EJ
DOI: 10.1016/s0021-9258(18)33879-1
发表时间: 1982-09
期刊: The Journal of biological chemistry
影响因子: --
作者:
R. Johnson;M. Beers;A. Scarpa
通讯作者: R. Johnson;M. Beers;A. Scarpa