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Tuning antenna function through hydrogen bonds to chlorophyll a
Llansola-Portoles, Manuel J.; Li, Fei1,2; Xu, Pengqi3; Streckaite, Simona; Ilioaia, Cristian; Yang, Chunhong1; Gall, Andrew; Pascal, Andrew A.; Croce, Roberta3; Robert, Bruno
2020
发表期刊BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
ISSN0005-2728
卷号1861期号:4
摘要We describe a molecular mechanism tuning the functional properties of chlorophyll a (Chl-a) molecules in photosynthetic antenna proteins. Light-harvesting complexes from photosystem II in higher plants - specifically LHCII purified with alpha- or beta-dodecyl-maltoside, along with CP29 - were probed by low-temperature absorption and resonance Raman spectroscopies. We show that hydrogen bonding to the conjugated keto carbonyl group of protein-bound Chl-a tunes the energy of its Sorel and Q(y) absorption transitions, inducing red-shifts that are proportional to the strength of the hydrogen bond involved. Chls-a with non-H-bonded keto C13(1) groups exhibit the blue-most absorption bands, while both transitions are progressively red-shifted with increasing hydrogen-bonding strength - by up 382 & 605 cm(-1) in the Q(y) and Sorel band, respectively. These hydrogen bonds thus tune the site energy of Chl-a in light-harvesting proteins, determining (at least in part) the cascade of energy transfer events in these complexes.
关键词Chl-a Hydrogen bonds Light-harvesting Energy regulation Oxygenic photosynthesis
学科领域Biochemistry & Molecular Biology ; Biophysics
DOI10.1016/j.bbabio.2019.148078
收录类别SCI
语种英语
WOS关键词LIGHT-HARVESTING-COMPLEX ; RESONANCE RAMAN-SPECTROSCOPY ; PIGMENT BINDING-SITE ; RHODOBACTER-SPHAEROIDES ; BACTERIOCHLOROPHYLL ; ABSORPTION ; PROTEIN ; CP29 ; SPECTRA ; ORGANIZATION
WOS研究方向Biochemistry & Molecular Biology ; Biophysics
WOS记录号WOS:000523617600014
出版者ELSEVIER
Special IssueSI
文献子类Article
出版地AMSTERDAM
EISSN1879-2650
资助机构ERC funding agency (PHOTPROT project) ; French Infrastructure for Integrated Structural Biology (FRISBI) (France) [ANR-10-INBS-05] ; Dutch Organization for scientific research via TOP grant (Netherlands) [84713002] ; European UnionEuropean Commission [675006]
作者邮箱andrew.pascal@i2bc.paris-saclay.fr ; bruno.robert@cea.fr
作品OA属性Green Submitted, Bronze
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/21830
专题中科院光生物学重点实验室
作者单位1.Univ Paris Saclay, I2BC, CNRS, CEA, F-91198 Gif Sur Yvette, France
2.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Vrije Univ Amsterdam, Fac Sci, Dept Phys & Astron, De Boelelaan 1081, NL-1081 HV Amsterdam, Netherlands
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GB/T 7714
Llansola-Portoles, Manuel J.,Li, Fei,Xu, Pengqi,et al. Tuning antenna function through hydrogen bonds to chlorophyll a[J]. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS,2020,1861(4).
APA Llansola-Portoles, Manuel J..,Li, Fei.,Xu, Pengqi.,Streckaite, Simona.,Ilioaia, Cristian.,...&Robert, Bruno.(2020).Tuning antenna function through hydrogen bonds to chlorophyll a.BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS,1861(4).
MLA Llansola-Portoles, Manuel J.,et al."Tuning antenna function through hydrogen bonds to chlorophyll a".BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1861.4(2020).
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