2003
DOI: 10.1128/iai.71.9.5238-5244.2003
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Purification and Characterization of an Immunogenic Aminopeptidase ofBrucella melitensis

Abstract: An immunogenic aminopeptidase was purified from Brucella melitensis strain VTRM1. The purification procedure consisted of ammonium sulfate fractionation and three chromatographic steps. This procedure resulted in a yield of 29% and a 144-fold increase in specific activity. The aminopeptidase appeared to be a monomeric enzyme with a molecular mass of 96 kDa and an isoelectric point of 4.8. Its activity was optimal at pH 7.0 at 40°C. The enzyme was strongly inhibited by EDTA, 1,10-phenathroline, and divalent cat… Show more

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Cited by 24 publications
(24 citation statements)
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“…melitensis 16M (virulent strain) and B. melitensis Rev.1 (vaccine strain) were grown under optimal conditions as described elsewhere [34]. E. coli TOP10 and BL21 (DE3) (a gift from Dr. Pourmand, Tehran University of Medical Sciences) were used for expression of the recombinant proteins.…”
Section: Bacterial Strainsmentioning
confidence: 99%
“…melitensis 16M (virulent strain) and B. melitensis Rev.1 (vaccine strain) were grown under optimal conditions as described elsewhere [34]. E. coli TOP10 and BL21 (DE3) (a gift from Dr. Pourmand, Tehran University of Medical Sciences) were used for expression of the recombinant proteins.…”
Section: Bacterial Strainsmentioning
confidence: 99%
“…B. melitensis is predominantly a disease of goats ( Capra hircus ) and sheep ( Ovis aries ), but can infect cattle as well (Zowghi and Ebadi, 1985; Buyukcangaz and Sen, 2007), causing placentitis. It is considered the most pathogenic species to humans (Corbel, 1997; Contreras-Rodriguez et al, 2003; Eschenbrenner et al, 2006), at least by the median infective dose by aerosol exposure (Teske et al, 2011), although B. abortus appears to cause equally severe disease (Atluri et al, 2011). B. suis infects a broad range of animals, including swine ( Sus spp.…”
Section: Introductionmentioning
confidence: 99%
“…Peptide metabolism by APN was optimal at pH 7.0 and was inhibited by bestatin (Ki = 2.2 µM) and amastatin (Ki = 0.025 µM). [47].…”
Section: Natural Substrates For Apnmentioning
confidence: 95%