MOLECULAR ARRANGEMENTS IN SPHINGOLIPIDS - CRYSTAL-STRUCTURE OF N-TETRACOSANOYLPHYTOSPHINGOSINE
MOLECULAR ARRANGEMENTS IN SPHINGOLIPIDS - CRYSTAL-STRUCTURE OF N-TETRACOSANOYLPHYTOSPHINGOSINE
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DOI：
10.1107/s0567740872006193
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发表时间：
1972-01-01
期刊：
影响因子：
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通讯作者：
PASCHER, I
中科院分区：
文献类型：
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作者：
DAHLEN, B;PASCHER, I
已被研究为神经酰胺模型化合物的二十四烷基磷脂酰磷脂是三斜晶系(P1)，a=6“181，b=4”929，c=37.278 A，ct=90-96，fl=91“30，7，=105”51。这两条碳氢链指向与极性基团相反的方向。由于极性基团的空间要求，分子在完全伸展时不能横向堆积。链形成101度角，从而容纳V型分子顶端的极性基团。这些分子通过一个分子内氢键和三个分子间氢键连接在一起。链条填料为常见的三斜线型(顶端)
Tetracosanoylphytosphingosine, which has been studied as a ceramide model compound, is triclinic (P1) with a= 6" 181, b= 4" 929, c= 37.278 A, ct= 90-96, fl= 91" 30, 7,= 105" 51. The two hydrocarbon chains point in opposite directions from the polar groups. The molecules cannot pack laterally when fully extended due to the space requirements of the polar groups. The chains form an angle of 101, thereby accommodating the polar groups in the apices of the V-shaped molecules. The molecules are linked together by one intra-and three intermolecular hydrogen bonds. The chain packing is of the common triclinic type (TIP)