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Updated: Aug 11, 2026

Bacterial Expression and Purification of Human Matrix Metalloproteinase-3 using Affinity Chromatography
Published on: March 30, 2022
Extracellular metalloendopeptidase of Streptomyces rimosus
Ljubinka Vitale1, Bojana Vukelić, Igor Krizaj
1Department of Organic Chemistry and Biochemistry, Ruder Bosković Institute, Bijenicka c.54, 10002 Zagreb, Croatia. vitale@rudjer.irb.hr
Abstract:
Metalloendopeptidase was isolated from Streptomyces rimosus culture filtrates in a homogeneous form. It was determined to be a 15 kDa basic protein, most active around pH 7.5, and susceptible to inhibition by chelating agents, N-bromosuccinimide, thiorphan, and 10(-4) M zinc. The enzyme was highly specific for phenylalanine at the N-side of endopeptide bonds. Determination of amino acid sequence of the enzyme's NH(2)-part allowed the recognition of its structure homology with isolated and predicted metallopeptidases from several Streptomyces species. The data contribute to the definition of M7 family of metalloendopeptidases in streptomycetes.
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