A comparison of the immunogenicity of a pair of enantiomeric proteins
Proteins Structure Function and Bioinformatics1993Vol. 16(3), pp. 306–308
Citations Over TimeTop 16% of 1993 papers
Abstract
The immunogenicity of a folded, all D-amino acid protein, rubredoxin, has been compared with that for the corresponding L-protein enantiomer. Following multiple administrations with alum adjuvant, the L-protein induced a strong, specific IgG antibody response, whereas the D-protein did not. This relative lack of responsiveness to the D-protein cannot be attributed to rapid excretion, since it is retained at least 4 times longer than the natural L-protein. These observations provide the first direct evidence that a folded D-amino acid protein has low immunogenicity and is long lived in vivo. Proteins with such properties may be useful as molecular platforms in a variety of chemical and pharmacological applications.
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