期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1978
卷号：75
期号：7
页码：3440-3444
DOI：10.1073/pnas.75.7.3440
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：The physical and chemical properties of five human and one canine monoclonal cryoimmunoglobulin have been compared. By many criteria, the proteins cannot be distinguished from the noncryoglobulin reference proteins analyzed in parallel; however, certain hydrodynamic and spectroscopic properties of the proteins indicate that cryoimmunoglobulins differ in tertiary structure relative to their cold-soluble counterparts. These differences seem to favor low-temperature-induced association between cryoglobulin molecules as an immediate consequence of increased intermolecular ionic or van der Waals forces. No evidence was found for the formation of cold-dependent antigen-antibody complexes or the ubiquitous presence of low-temperature-dependent conformation changes as a component of cryoprecipitation. Rather, the anomalous solution behavior of monoclonal cryoimmunoglobulins can be considered a direct result of the individual solubility properties of these proteins.
