Isolation, characterization, and amino acid sequence of a ubiquitin-like protein from insect eggs - PubMed (original) (raw)
Comparative Study
. 1982 Sep 10;257(17):10267-70.
- PMID: 6286647
Free article
Comparative Study
Isolation, characterization, and amino acid sequence of a ubiquitin-like protein from insect eggs
J G Gavilanes et al. J Biol Chem. 1982.
Free article
Abstract
A protein with a primary structure identical to that of human and bovine ubiquitin has been purified from insect eggs. The isolation, secondary structure, and amino acid sequence of this ubiquitin-like protein are reported. The sequence was determined by automatic Edman degradation of the intact molecule as well as by the manual sequence analysis of the enzymatic cleavage products. The polypeptide has 74 amino acid residues and internal homology regions. Interactions of the protein with peptides results in protective effects against proteolysis. This paper reports for the first time the presence of the ubiquitin molecule in invertebrates.
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