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| Pigment configuration in the light-harvesting protein of the xanthophyte alga Xanthonema debile | |
| Streckaite, Simona; Gardian, Zdenko1,2; Li, Fei3; Pascal, Andrew A.; Litvin, Radek1,2; Robert, Bruno; Llansola-Portoles, Manuel J. | |
| 2018 | |
| 发表期刊 | PHOTOSYNTHESIS RESEARCH
 |
| ISSN | 0166-8595 |
| 卷号 | 138期号:2页码:139-148 |
| 摘要 | The soil chromophyte alga Xanthonema (X.) debile contains only non-carbonyl carotenoids and Chl-a. X. debile has an antenna system denoted Xanthophyte light-harvesting complex (XLH) that contains the carotenoids diadinoxanthin, heteroxanthin, and vaucheriaxanthin. The XLH pigment stoichiometry was calculated by chromatographic techniques and the pigment-binding structure studied by resonance Raman spectroscopy. The pigment ratio obtained by HPLC was found to be close to 8:1:2:1 Chl-a:heteroxanthin:diadinoxanthin:vaucheriaxanthin. The resonance Raman spectra suggest the presence of 8-10 Chl-a, all of which are 5-coordinated to the central Mg, with 1-3 Chl-a possessing a macrocycle distorted from the relaxed conformation. The three populations of carotenoids are in the all-trans configuration. Vaucheriaxanthin absorbs around 500-530nm, diadinoxanthin at 494nm and heteroxanthin at 487nm at 4.5K. The effective conjugation length of heteroxanthin and diadinoxanthin has been determined as 9.4 in both cases; the environment polarizability of the heteroxanthin and diadinoxanthin binding pockets is 0.270 and 0.305, respectively. |
| 关键词 | Light-harvesting complex Algae Resonance Raman Chl-a Carotenoids Diadinoxanthin Heteroxanthin |
| 学科领域 | Plant Sciences |
| DOI | 10.1007/s11120-018-0557-1 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | RESONANCE RAMAN-SPECTRA ; FUCOXANTHIN-CHLOROPHYLL-PROTEIN ; EXCITATION-ENERGY TRANSFER ; CIS-TRANS ISOMERS ; BETA-CAROTENE ; PHOTOSYNTHETIC BACTERIA ; ELECTRONIC ABSORPTION ; INFRARED-SPECTRA ; REACTION CENTERS ; ALL-TRANS |
| WOS记录号 | WOS:000448512400002 |
| 出版者 | SPRINGER |
| 文献子类 | Article |
| 出版地 | DORDRECHT |
| EISSN | 1573-5079 |
| 资助机构 | ERC funding agency (PHOTPROT project) ; French Infrastructure for Integrated Structural Biology (FRISBI) [ANR-10-INBS-05] ; European Union 2020 research and innovation program under the Marie Sklodowska-Curie Grant [675006 (SE2B)] ; Czech Science FoundationGrant Agency of the Czech Republic [P501/12/G055] ; European Regional Development FundEuropean Commission ; [RVO:60077344] |
| 作者邮箱 | manuel.llansola@i2BC.paris-saclay.fr |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/20675 |
| 专题 | 中科院光生物学重点实验室 |
| 作者单位 | 1.[Streckaite, Simona; Li, Fei; Pascal, Andrew A.; Robert, Bruno; Llansola-Portoles, Manuel J.] Univ Paris Saclay, CEA, CNRS, Inst Integrat Biol Cell I2BC, F-91198 Gif Sur Yvette, France 2.Czech Acad Sci, Biol Ctr, Branisovska 31, Ceske Budejovice 37005, Czech Republic 3.Univ South Bohemia, Fac Sci, Branisovska 1760, Ceske Budejovice 37005, Czech Republic 4.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Streckaite, Simona,Gardian, Zdenko,Li, Fei,et al. Pigment configuration in the light-harvesting protein of the xanthophyte alga Xanthonema debile[J]. PHOTOSYNTHESIS RESEARCH,2018,138(2):139-148. |
| APA | Streckaite, Simona.,Gardian, Zdenko.,Li, Fei.,Pascal, Andrew A..,Litvin, Radek.,...&Llansola-Portoles, Manuel J..(2018).Pigment configuration in the light-harvesting protein of the xanthophyte alga Xanthonema debile.PHOTOSYNTHESIS RESEARCH,138(2),139-148. |
| MLA | Streckaite, Simona,et al."Pigment configuration in the light-harvesting protein of the xanthophyte alga Xanthonema debile".PHOTOSYNTHESIS RESEARCH 138.2(2018):139-148. |
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