Abstract
The primary translation product of the mRNA for rabbit haptoglobin was obtained from a rabbit reticulocyte lysate cell-free system by immunoprecipitation with an antiserum that was directed to the β chain of haptoglobin. Analysis of the translation product by gel electrophoresis and by protein sequencing analysis identified a single polypeptide of Mr 41 000. Sequence analysis established a signal region of 18 residues that was immediately followed by the α chain sequence. These results give strong evidence that haptoglobin is initially synthesized as a single chain composed of a signal peptide followed by α and β chain regions, respectively.
Original language | English (US) |
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Pages (from-to) | 275-279 |
Number of pages | 5 |
Journal | FEBS Letters |
Volume | 153 |
Issue number | 2 |
DOIs | |
State | Published - Mar 21 1983 |
Externally published | Yes |
Keywords
- Cell-free translation
- Haptoglobin
- Precursor protein
- Signal sequence
ASJC Scopus subject areas
- Biophysics
- Structural Biology
- Biochemistry
- Molecular Biology
- Genetics
- Cell Biology