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：1975
卷号：72
期号：3
页码：819-823
DOI：10.1073/pnas.72.3.819
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：A comparison of various variable immunoglobulin domains demonstrates that structural variability parallels the observed frequency of amino-acid substitutions. The similarity of the structural frameworks is in good agreement with the evolutionary relationships of the chains as derived from sequence analysis.
