期刊
JOURNAL OF PROTEOMICS
卷 74, 期 12, 页码 2959-2971出版社
ELSEVIER
DOI: 10.1016/j.jprot.2011.07.020
关键词
Brucella; Proteome; Type IV secretion system; Bioinformatics
资金
- Consejo Nacional de Ciencia y Tecnologia, CONACyT, Mexico [44837Q]
- Secretaria de Posgrado e Investigacion, I.P.N., Mexico [20101365]
Brucella abortus is an alpha-2 proteobacteria with a type IV secretion system (T4SS) known as virB, which is necessary to gain virulence by building up a replicative vacuole associated with the endoplasmic reticulum of the host cell. A virB T4SS mutant of the B. abortus 2308 strain and its wild-type strain were grown in acid medium in order to obtain and analyze their proteomes, looking for putative proteins that may serve as T4SS substrates and those that may be subjected to T4SS regulation. A total of 47 overexpressed and 22 under-expressed proteins from the virB T4SS mutant strain were selected and sequenced. Some of the 69 analyzed proteins have not been described before either as over or under-expressed in relation to a virB T4SS mutation, whereas some of them have been already described by other groups as potentially important secretory proteins in other Brucella species. An important number of the proteins identified are outer membrane and periplasmic space protein, which makes them become particularly important new T4SS-related candidate proteins. (C) 2011 Elsevier B.V. All rights reserved.
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