Combined use of AFM and X-ray diffraction to analyze crystals of an engineered, domain-deleted antibody.
Combined use of AFM and X-ray diffraction to analyze crystals of an engineered, domain-deleted antibody.
复制标题
结合使用 AFM 和 X 射线衍射来分析工程化、结构域缺失的抗体的晶体。
DOI:
10.1107/s0907444905001216
复制
发表时间:
2005
期刊:
影响因子:
--
通讯作者:
McPherson,Alexander
中科院分区:
文献类型:
--
作者:
Larson,StevenB;Kuznetsov,YuG;Day,John;Zhou,Jiashu;Glaser,Scott;Braslawsky,Gary;McPherson,Alexander
A genetically engineered humanized CH2-domain-deleted monoclonal antibody lacking any interchain-hinge disulfide bonds has been crystallized in the presence of detergent in a form suitable for X-ray diffraction analysis. The crystals were grown from 4 M formate along with Triton X-100 and had P21212 space-group symmetry, with unit-cell parameters a = 83, b = 224, c = 167 Å. The crystals diffract to beyond 2.8 Å resolution. A disordered crystal form of larger size and more attractive habit was also grown from 4 M formate, but in the presence of the Anapoe series of detergents. Preliminary X-ray data, in conjunction with atomic force microscopy images, are consistent with asymmetric units consisting of two intact antibodies forming a circular dimeric ring. The crystallizing unit, which must contain a twofold axis, is a toroidal assembly of four antibodies (two dimeric rings). Competition between dimers and tetramers to enter the lattice, along with a unique kind of planar defect of packing, may be responsible for the unusually high defect density and the disorder of the X-ray diffraction pattern exhibited by the second crystal form. An approach to crystallizing proteins showing phase separation, particularly intact antibodies, that uses a preliminary detergent test set is described.
登录
查看更多内容
DOI:
--
发表时间:
1984
影响因子:
11.1
作者:
U. Gubler;A. O. Chua;B. Hoffman;K. Collier;J. Eng
通讯作者:
J. Eng
DOI:
10.1254/jjp.43.67
发表时间:
1987
期刊:
Japanese journal of pharmacology
影响因子:
--
作者:
K. Sugaya;I. Matsuda;K. Kubota
通讯作者:
K. Kubota
影响因子:
4.8
作者:
B. Zheng;J. Eng;R. S. Yalow
通讯作者:
R. S. Yalow
DOI:
--
发表时间:
1977
影响因子:
11.1
作者:
J. Muller;E. Straus;R. Yalow
通讯作者:
R. Yalow
影响因子:
3
作者:
J. Eng;B. Du;Y. Pan;May Chang;J. Hulmes;R. Yalow
通讯作者:
R. Yalow