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Amino acid sequence of bovine spleen cathepsin B.
Department of Biochemistry, Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Science, Prague.
The complete amino acid sequence of bovine spleen cathepsin B was determined by manual and automatic Edman degradation of fragments prepared by proteolytic or chemical digestion of the enzyme. The single-chain form of the enzyme consists of 253 amino acid residues and its Mr is 27,468 (carbohydrate moiety not included). The light chain (residues 1-47) and the heavy chain (residues 50-253) of the enzyme are linked by the sequence -Gly-Arg (residues 48 and 49) in the single-chain form. Bovine spleen cathepsin B shows 80% sequence homology with cathepsins B from other species. An outstanding feature of bovine spleen cathepsin B not observed with the other cathepsins B is the presence of two additional half-cystine residues.
PMID: 3379063 [PubMed - indexed for MEDLINE]
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Cited by 4 PubMed Central articles
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