Isolation and characterization of the 47 kDa protein and the D1-D2-cytochrome b-559 complex.
Isolation and characterization of the 47 kDa protein and the D1-D2-cytochrome b-559 complex.
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47 kDa 蛋白和 D1-D2-细胞色素 b-559 复合物的分离和表征。
DOI:
10.1016/s0005-2728(89)80164-1
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发表时间:
1989
期刊:
影响因子:
--
通讯作者:
Yocum,CF
中科院分区:
文献类型:
--
作者:
Ghanotakis,DF;dePaula,JC;Demetriou,DM;Bowlby,NR;Petersen,J;Babcock,GT;Yocum,CF
The 47 kDa polypeptide and a protein complex consisting of the Dl (32 kDa),D2 (34 kDa) and cytochromeb-559 (9 kDa) species were isolated from a Tris-washed Photosystem II core complex solubilized with dodecylmaltoside in the presence of LiClO4. Although the 43 kDa chlorophyll-binding protein is readily dissociated from the Photosystem II complex under our conditions, two cycles of exposure to high concentrations of detergent and LiClO4were required for complete removal of the 47 kDa chlorophyll-binding protein from the D1–D2-cytochromeb-559 complex. Spectroscopic characterization of these two species revealed that the 47 kDa protein binds chlorophylla, whereas the D1–D2-cytochromeb-559 complex shows an enrichment in Pheoaand heme on a chlorophyll basis. A spin-polarized EPR triplet can be observed at liquid helium temperatures in the Dl–D2-cytochromeb-559 complex, but no such triplet is observed in the purified 47 kDa species. The zero-field splitting parameters of the P-680 + triplet indicate that the triplet spin is localized onto one chlorophyll molecule. Resonance Raman spectroscopy showed that: (i) β-carotene is bound to the reaction center in its all-transconformation; (ii) all chlorophyllamolecules are five-coordinate; and (iii) the C-9 keto group of one of the chlorin pigments is hydrogen-bonded. Our results support the proposal that the D1–D2 complex bindsthe P-680 + and Pheoaspecies that are involved in the primary charge separation.
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影响因子:
2.9
作者:
B. Robert;M. Lutz
通讯作者:
M. Lutz
DOI:
10.1111/j.1432-1033.1980.tb04894.x
发表时间:
1980-01-01
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
--
作者:
DINER, BA;WOLLMAN, FA
通讯作者:
WOLLMAN, FA
DOI:
10.1016/0005-2728(88)90170-3
发表时间:
1988-03-09
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子:
--
作者:
AKABORI, K;TSUKAMOTO, H;TOYOSHIMA, Y
通讯作者:
TOYOSHIMA, Y
DOI:
10.1016/0005-2728(78)90189-5
发表时间:
1978-01-01
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子:
--
作者:
LUTZ, M;AGALIDIS, I;REISSHUSSON, F
通讯作者:
REISSHUSSON, F
DOI:
10.1016/0005-2728(87)90121-6
发表时间:
1987
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
M. Lutz;W. Szponarski;G. Berger;B. Robert;J. Neumann
通讯作者:
J. Neumann