| Literature DB >> 1761687 |
B W Brooks1, N M Young, D C Watson, R H Robertson, E A Sugden, K H Nielsen, S A Becker.
Abstract
By using a combination of agarose and polyacrylamide gel electrophoresis, Mycobacterium paratuberculosis antigen D was resolved from a crude sonicated preparation of the organism and characterized as a component with a molecular mass of approximately 400,000 Da. While this component was composed mainly of protein, with unusually high proportions of glutamic acid and leucine, it was resistant to digestion with a number of proteolytic enzymes. Structural detail revealed by electron microscopy, amino acid sequence data, and the demonstration of a Soret band in its absorption spectrum indicated that antigen D was similar to an Escherichia coli bacterioferritin.Entities:
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Year: 1991 PMID: 1761687 PMCID: PMC270179 DOI: 10.1128/jcm.29.8.1652-1658.1991
Source DB: PubMed Journal: J Clin Microbiol ISSN: 0095-1137 Impact factor: 5.948