Source:http://linkedlifedata.com/resource/pubmed/id/11099979
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
2001-1-19
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pubmed:abstractText |
The crystal structures of the beta' phase of CLC (1, 3-didecanoyl-2-dodecanoylglycerol) and MPM (1, 3-ditetradecanoyl-2-hexadecanoylglycerol) have been determined from single-crystal X-ray diffraction and high-resolution X-ray powder diffraction data, respectively. Both these crystals are orthorhombic with space group Iba2 and Z = 8. The unit-cell parameters of beta'-CLC are a = 57.368 (6), b = 22.783 (2) and c = 5.6945 (6) A and the final R value is 0.175. The unit-cell parameters of beta'-MPM are a = 76.21 (4), b = 22.63 (1) and c = 5.673 (2) A and the final R(p) value is 0.057. Both the beta'-CLC and beta'-MPM molecules are crystallized in a chair conformation, having a bend at the glycerol moiety. The zigzag planes of the acyl chains are orthogonally packed, as is typical for a beta' phase. Furthermore, unit-cell parameters of some other members of the C(n)C(n+2)C(n)-type triacylglycerol series have been refined on their high-resolution X-ray powder diffraction pattern. Finally, the crystal structures are compared with the currently known structures and models of triacylglycerols.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0108-7681
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
56 ( Pt 6)
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1103-11
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pubmed:dateRevised |
2007-7-24
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pubmed:meshHeading |
pubmed-meshheading:11099979-Crystallography, X-Ray,
pubmed-meshheading:11099979-Models, Molecular,
pubmed-meshheading:11099979-Molecular Conformation,
pubmed-meshheading:11099979-Structure-Activity Relationship,
pubmed-meshheading:11099979-Triglycerides,
pubmed-meshheading:11099979-X-Ray Diffraction
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pubmed:year |
2000
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pubmed:articleTitle |
Structure of CnCn+2Cn-type (n = even) beta'-triacylglycerols.
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pubmed:affiliation |
Laboratory for Crystallography, Institute for Molecular Chemistry (IMC), Universiteit van Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands. arjen@crys.chem.uva.nl
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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