Packing forces in ribonuclease crystals

FEBS Letters

Rodier, Francis¹  Crosio, Marie-Pierre¹  Jullien, Magali¹ 

[1] Laboratoire de Biologie physico-chimique, Université Paris Sud, Orsay, France

关键词: Crystal packing;    Buried surface area;    Ribonuclease A;    Ribonuclease S;    RNase A;    ribonuclease A;    RNase S;    ribonuclease S;   

DOI  :  10.1016/0014-5793(90)80395-Y

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Packing in Ribonuclease A and Ribonuclease S crystals have been compared in order to determine the possible role of the precipitant on lattice contacts. Both proteins have similar tertiary structures, buth they crystallize in different space groups depending on the precipitating agent. It is found that packing differs either by the number of nearest neighbours or by the size of surface areas buried in individual contacts. Ammonium sulfate seems to promote hydrophobic interactions with interfaces similar to those found in oligomeric proteins. Organic precipitants favour electrostatic interactions.

【 授权许可】

Unknown