Raman spectroscopic study of polycrystalline mono- and polyunsaturated 1-eicosanoyl-d(39)-2-eicosenoyl-sn-glycero-3-phosphocholines: bilayer lipid clustering and acyl chain order and disorder characteristics.

Raman spectroscopic study of polycrystalline mono- and polyunsaturated 1-eicosanoyl-d(39)-2-eicosenoyl-sn-glycero-3-phosphocholines: bilayer lipid clustering and acyl chain order and disorder characteristics.
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多晶单和多不饱和 1-二十烷酰基-d(39)-2-二十烯酰基-sn-甘油-3-磷酸胆碱的拉曼光谱研究:双层脂质簇以及酰基链有序和无序特征。

DOI:
10.1002/(sici)1097-0282(2000)57:1
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发表时间:
2000
期刊:
影响因子:
2.9
通讯作者:
Levin,IW
Levin,IW
中科院分区:
生物学4区
文献类型:
--
作者:
McCarthy,PK;Huang,CH;Levin,IW

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使用振动拉曼光谱研究了1-二十烷酰基-d39 - 2-二十碳烯酰基-sn-甘油基-3-磷酸胆碱[C(20-d39):C(20:1 Δj)PC,其中j = 5、8、11或13; C(20-d39):C(20:2 Δ 11,14)PC;和C(20-d39):C(20:3 Δ 11,14,17)PC]的一系列单和多不饱和双键位置异构体的多晶脂质样品,以评估酰基链堆积有序-无序特征和同位素差异化酰基链的假定双层簇形成。这些双层系统中饱和的sn-1酰基链的全氘化使得每个链的分子内和分子间构象和组织性质能够分别进行评估。多晶样品的各种饱和链亚甲基CD 2和碳-碳(C = C)拉伸模式峰高强度比和线宽参数表明,高度的sn-1链序不受双键位置或sn-2链中不饱和键数量的影响。相比之下,不饱和的sn-2链光谱特征反映了增加的酰基链构象紊乱,因为顺式双键通常朝向链末端重新定位,或者双键的数量从1增加到3。在这一系列单不饱和和多不饱和的20碳链脂质的sn-1和sn-2链之间观察到的脂质双层链堆积差异表明存在基于高度有序的饱和sn-1链簇形成的横向分布的微区。© 2000 John Wiley & Sons,Inc.生物聚合物(生物光谱学)57:2-10,2000年
Polycrystalline lipid samples of a series of mono‐ and polyunsaturated, double bond positional isomers of 1‐eicosanoyl‐d39‐2‐eicosenoyl‐sn‐glycero‐3‐phosphocholines [C(20‐d39):C(20:1 Δj)PC, withj= 5, 8, 11, or 13; C(20‐d39):C(20:2 Δ11,14)PC; and C(20‐d39):C(20:3 Δ11,14,17)PC] were investigated using vibrational Raman spectroscopy to assess the acyl chain packing order–disorder characteristics and putative bilayer cluster formation of the isotopically differentiated acyl chains. Perdeuteration of specifically the saturatedsn‐1 acyl chains for these bilayer systems enables each chain's intra‐ and intermolecular conformational and organizational properties to be evaluated separately. Various saturated chain methylene CD2and carbon–carbon (CC) stretching mode peak height intensity ratios and line width parameters for the polycrystalline samples demonstrate a high degree ofsn‐1 chain order that is unaffected by either the double bond placement or number of unsaturated bonds within thesn‐2 chain. In contrast, the unsaturatedsn‐2 chain spectral signatures reflect increasing acyl chain conformational disorder as either the cis double bond is generally repositioned toward the chain terminus or the number of double bonds increases from one to three. The lipid bilayer chain packing differences observed between thesn‐1 andsn‐2 chains of this series of monounsaturated and polyunsaturated 20 carbon chain lipids suggest the existence of laterally distributed microdomains predicated on the formation of highly ordered, saturatedsn‐1 chain clusters. © 2000 John Wiley & Sons, Inc. Biopolymers (Biospectroscopy) 57: 2–10, 2000
氘化脂质双层分散体的酰基链堆积特性:振动拉曼光谱参数
DOI: 10.1002/jrs.1250210710
发表时间: 1990
影响因子: 2.5
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M. Devlin;I. W. Levin
通讯作者: I. W. Levin
DOI: 10.1021/j100020a082
发表时间: 1995
期刊: The Journal of Physical Chemistry
影响因子: --
作者:
R. G. Snyder;H. L. Strauss;D. A. Cates
通讯作者: D. A. Cates
单不饱和磷脂酰乙醇胺双层的量热研究和分子力学模拟。
DOI: --
发表时间: 1994
期刊: The Journal of biological chemistry
影响因子: --
作者:
Wang,ZQ;Lin,HN;Li,S;Huang,CH
通讯作者: Huang,CH
二棕榈酰磷脂酰胆碱和结构相关分子的拉曼光谱和振动分配。
DOI: 10.1016/0005-2760(75)90095-8
发表时间: 1975
期刊: Biochimica et biophysica acta
影响因子: --
作者:
R. C. Spiker;Ira W. Levin
通讯作者: Ira W. Levin
DOI: 10.1021/bi00243a021
发表时间: 1991-07-23
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
CEVC, G
通讯作者: CEVC, G