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
中科院分区:
文献类型:
--
作者:
McCarthy,PK;Huang,CH;Levin,IW
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 (CC) 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
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影响因子:
2.5
作者:
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
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
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
影响因子:
2.9
作者:
CEVC, G
通讯作者:
CEVC, G