Tuning antenna function through hydrogen bonds to chlorophyll a

doi:10.1016/j.bbabio.2019.148078

CORC > 植物研究所 > 中国科学院植物研究所 > 中科院光生物学重点实验室

	Tuning antenna function through hydrogen bonds to chlorophyll a
	Llansola-Portoles, Manuel J.; Li, Fei 3,4; Xu, Pengqi 1; Streckaite, Simona ; Ilioaia, Cristian ; Yang, Chunhong 4; Gall, Andrew ; Pascal, Andrew A.; Croce, Roberta 1; Robert, Bruno
刊名	BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
	2020
卷号	1861 期号:4
关键词	Chl-a Hydrogen bonds Light-harvesting Energy regulation Oxygenic photosynthesis
ISSN号	0005-2728
DOI	10.1016/j.bbabio.2019.148078
文献子类	Article
英文摘要	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.
学科主题	Biochemistry & Molecular Biology ; Biophysics
电子版国际标准刊号	1879-2650
出版地	AMSTERDAM
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
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000523617600014
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]
内容类型	期刊论文
源URL	[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 Chinese Acad Sci, Beijing 100049, Peoples R China 2.Vrije Univ Amsterdam, Fac Sci, Dept Phys & Astron, De Boelelaan 1081, NL-1081 HV Amsterdam, Netherlands 3.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China 4.Univ Paris Saclay, I2BC, CNRS, CEA, F-91198 Gif Sur Yvette, France
推荐引用方式 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).