Abstract
Hemoglobin Wayne is an alpha chain variant which manifests itself as two minor hemoglobin (Hb) components that migrate more rapidly than Hb A on electrophoresis at pH 8.6. It has been found in a child with Fanconi's anemia and in three generations of the child's family. Each of the minor components yields an alpha chain in which the carboxyl-terminal tripeptide sequence, Lys-Tyr-Arg, has been replaced by the octapeptide sequence Asx-Thr-Val-Lys-Leu-Glu-Pro-Arg. In alpha Wayne I, the slower of the pair, Asx is asparagine, whereas in alpha Wayne II it is aspartic acid. Comparison of the alpha Wayne sequences with the amino-acid sequences of alpha A and alpha Constant Spring leads to the conclusion that Hb Wayne I is the result of a -1 frameshift mutation in the alpha chain and that Hb Wayne II is formed secondarily by spontaneous deamidation of the new asparagine residue. A frameshift is consistent with a single mRNA base sequence for the last eight codons involved and supports the view of Clegg, Weatherall, and Milner [Nature (1971) 234, 337-341] that Hb Constant Spring is the result of a terminator mutation leading to translation of 31 codons not normally translated.
Dates
Type | When |
---|---|
Created | 19 years, 3 months ago (May 31, 2006, 2:59 a.m.) |
Deposited | 3 years, 4 months ago (April 13, 2022, 11 a.m.) |
Indexed | 4 months ago (April 27, 2025, 7:05 a.m.) |
Issued | 49 years, 6 months ago (March 1, 1976) |
Published | 49 years, 6 months ago (March 1, 1976) |
Published Online | 49 years, 6 months ago (March 1, 1976) |
Published Print | 49 years, 6 months ago (March 1, 1976) |
@article{Seid_Akhavan_1976, title={Hemoglobin Wayne: a frameshift mutation detected in human hemoglobin alpha chains.}, volume={73}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.73.3.882}, DOI={10.1073/pnas.73.3.882}, number={3}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Seid-Akhavan, M and Winter, W P and Abramson, R K and Rucknagel, D L}, year={1976}, month=mar, pages={882–886} }