CRYSTAL-STRUCTURE AT 2.8-ANGSTROM RESOLUTION OF A SOLUBLE FORM OF THE CELL-ADHESION MOLECULE CD2

被引:300
作者
JONES, EY [1 ]
DAVIS, SJ [1 ]
WILLIAMS, AF [1 ]
HARLOS, K [1 ]
STUART, DI [1 ]
机构
[1] UNIV OXFORD, SIR WILLIAM DUNN SCH PATHOL, MRC, CELLULAR IMMUNOL UNIT, OXFORD OX1 3RE, ENGLAND
关键词
D O I
10.1038/360232a0
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The crystal structure of a soluble form of the T lymphocyte antigen CD2 provides the first complete view of the extracellular region of a cell adhesion molecule. The topology of the molecule, which comprises two immunoglobulin-like domains, is the same as that of the first two domains of CD4 but the relative domain orientation is altered by a fairly flexible linker region. The putative ligand-binding beta-sheet forms a flat surface towards the top of the molecule. Crystal contacts between these surfaces suggest a plausible model for the adhesive interaction.
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页码:232 / 239
页数:8
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