Abstract
RelA and SpoT synthesize ppGpp, a key effector molecule that facilitates the adaptation of bacteria to nutrient starvation and other stresses, known as the stringent response. To investigate the role of Rsh Bant , a putative RelA/SpoT homolog (encoded by BAS4302) in Bacillus anthracis, we examined the alteration of the secretome profiles after the overexpression of a functional His-Rsh Bant protein in the B. anthracis strain Sterne at the stationary growth phase. In the ppGpp-deficient E. coli mutant strain CF1693, overexpression of Rsh Bant restored a ppGpp-dependent growth defect on minimal glucose media. The secretome profiles obtained using a two-dimensional electrophoresis (2-DE) analysis were altered by overexpression of Rsh Bant in B. anthracis. Among the 66 protein spots differentially expressed >1.5-fold, the 29 proteins were abundant for further identification using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Functional categorization of those proteins implicated their involvement in various biological activities. Taken together, our results imply that overexpression of a functional His-Rsh Bant can lead to the increased levels of intracellular ppGpp in B. anthracis, resulting in the significant changes in its secretome profiling. The stringent response-controlled proteins identified are likely useful as potential targets for serodiagnostic applications.
Similar content being viewed by others
References
Battesti A, Bouveret E (2009) Bacteria possessing two RelA/SpoT-like proteins have evolved a specific stringent response involving the acyl carrier protein–SpoT interaction. J Bacteriol 191(2):616–624. doi:10.1128/jb.01195-08
Boes N, Schreiber K, Schobert M (2008) SpoT-triggered stringent response controls usp gene expression in Pseudomonas aeruginosa. J Bacteriol 190(21):7189–7199. doi:10.1128/jb.00600-08
Bradford MM (1976) A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein–dye binding. Anal Biochem 72:248–254
Cashel M (1975) Regulation of bacterial ppGpp and pppGpp. Annu Rev Microbiol 29:301–318. doi:10.1146/annurev.mi.29.100175.001505
Chatterji D, Ojha AK (2001) Revisiting the stringent response, ppGpp and starvation signaling. Curr Opin Microbiol 4(2):160–165
Chen Y, Tenover FC, Koehler TM (2004) Beta-lactamase gene expression in a penicillin-resistant Bacillus anthracis strain. Antimicrob Agents Chemother 48(12):4873–4877. doi:10.1128/aac.48.12.4873-4877.2004
Chitlaru T, Gat O, Grosfeld H, Inbar I, Gozlan Y, Shafferman A (2007) Identification of in vivo-expressed immunogenic proteins by serological proteome analysis of the Bacillus anthracis secretome. Infect Immun 75(6):2841–2852. doi:10.1128/iai.02029-06
Chung MC, Popova TG, Millis BA, Mukherjee DV, Zhou W, Liotta LA, Petricoin EF, Chandhoke V, Bailey C, Popov SG (2006) Secreted neutral metalloproteases of Bacillus anthracis as candidate pathogenic factors. J Biol Chem 281(42):31408–31418. doi:10.1074/jbc.M605526200
Evans DG, Wardlaw AC (1953) Gelatinase and collagenase production by certain species of Bacillus. J Gen Microbiol 8(3):481–487
Foster TJ, Hook M (1998) Surface protein adhesins of Staphylococcus aureus. Trends Microbiol 6(12):484–488
Fouet A, Mock M (2006) Regulatory networks for virulence and persistence of Bacillus anthracis. Curr Opin Microbiol 9(2):160–166. doi:10.1016/j.mib.2006.02.009
Gohar M, Gilois N, Graveline R, Garreau C, Sanchis V, Lereclus D (2005) A comparative study of Bacillus cereus, Bacillus thuringiensis and Bacillus anthracis extracellular proteomes. Proteomics 5(14):3696–3711. doi:10.1002/pmic.200401225
Gong L, Takayama K, Kjelleberg S (2002) Role of spoT-dependent ppGpp accumulation in the survival of light-exposed starved bacteria. Microbiology 148(Pt 2):559–570
Gupta S, Pandit SB, Srinivasan N, Chatterji D (2002) Proteomics analysis of carbon-starved Mycobacterium smegmatis: induction of Dps-like protein. Protein Eng 15(6):503–512
Halsey TA, Vazquez-Torres A, Gravdahl DJ, Fang FC, Libby SJ (2004) The ferritin-like Dps protein is required for Salmonella enterica serovar Typhimurium oxidative stress resistance and virulence. Infect Immun 72(2):1155–1158
Jung KH, Seo GM, Yoon JW, Park KS, Kim JC, Kim SJ, Oh KG, Lee JH, Chai YG (2008) Protein expression pattern of murine macrophages treated with anthrax lethal toxin. Biochim Biophys Acta 1784(11):1501–1506. doi:10.1016/j.bbapap.2008.06.016
Kim S, Watanabe K, Suzuki H, Watarai M (2005) Roles of Brucella abortus SpoT in morphological differentiation and intramacrophagic replication. Microbiology 151(Pt 5):1607–1617. doi:10.1099/mic.0.27782-0
Kim SK, Shahid S, Kim SH, Park JH, Lee HT, Jung KH, Chai YG (2012) Comparative analysis of virulence factors secreted by Bacillus anthracis Sterne at host body temperature. Lett Appl Microbiol 54(4):306–312. doi:10.1111/j.1472-765X.2012.03209.x
Kvint K, Nachin L, Diez A, Nystrom T (2003) The bacterial universal stress protein: function and regulation. Curr Opin Microbiol 6(2):140–145
Lee VT, Schneewind O (2001) Protein secretion and the pathogenesis of bacterial infections. Genes Dev 15(14):1725–1752. doi:10.1101/gad.896801
Magnusson LU, Farewell A, Nystrom T (2005) ppGpp: a global regulator in Escherichia coli. Trends Microbiol 13(5):236–242. doi:10.1016/j.tim.2005.03.008
Miyoshi S, Shinoda S (2000) Microbial metalloproteases and pathogenesis. Microbes Infect 2(1):91–98 S128645790000280X [pii]
Mock M, Fouet A (2001) Anthrax. Annu Rev Microbiol 55:647–671. doi:10.1146/annurev.micro.55.1.64755/1/647
Nicholson WL, Munakata N, Horneck G, Melosh HJ, Setlow P (2000) Resistance of Bacillus endospores to extreme terrestrial and extraterrestrial environments. Microbiol Mol Biol Rev 64(3):548–572
Pajuaba AC, Silva DA, Almeida KC, Cunha-Junior JP, Pirovani CP, Camillo LR, Mineo JR (2012) Immunoproteomics of Brucella abortus reveals differential antibody profiles between S19-vaccinated and naturally infected cattle. Proteomics 12(6):820–831. doi:10.1002/pmic.201100185
Persson O, Valadi A, Nystrom T, Farewell A (2007) Metabolic control of the Escherichia coli universal stress protein response through fructose-6-phosphate. Mol Microbiol 65(4):968–978. doi:10.1111/j.1365-2958.2007.05838.x
Piggot PJ, Hilbert DW (2004) Sporulation of Bacillus subtilis. Curr Opin Microbiol 7(6):579–586. doi:10.1016/j.mib.2004.10.001
Popov SG, Popova TG, Hopkins S, Weinstein RS, MacAfee R, Fryxell KJ, Chandhoke V, Bailey C, Alibek K (2005) Effective antiprotease-antibiotic treatment of experimental anthrax. BMC Infect Dis 5:25. doi:10.1186/1471-2334-5-25
Primm TP, Andersen SJ, Mizrahi V, Avarbock D, Rubin H, Barry CE 3rd (2000) The stringent response of Mycobacterium tuberculosis is required for long-term survival. J Bacteriol 182(17):4889–4898
Ratnayake-Lecamwasam M, Serror P, Wong KW, Sonenshein AL (2001) Bacillus subtilis CodY represses early-stationary-phase genes by sensing GTP levels. Genes Dev 15(9):1093–1103. doi:10.1101/gad.874201
Reiss S, Pane-Farre J, Fuchs S, Francois P, Liebeke M, Schrenzel J, Lindequist U, Lalk M, Wolz C, Hecker M, Engelmann S (2012) Global analysis of the Staphylococcus aureus response to mupirocin. Antimicrob Agents Chemother 56(2):787–804. doi:10.1128/aac.05363-11
Sonenshein AL (2005) CodY, a global regulator of stationary phase and virulence in Gram-positive bacteria. Curr Opin Microbiol 8(2):203–207. doi:10.1016/j.mib.2005.01.001
Sterne M (1937) Variation in Bacillus anthracis. Onderstepoort J Vet Sci Anim Ind 8:271–349
Tu WY, Pohl S, Gizynski K, Harwood CR (2012) The iron-binding protein Dps2 confers peroxide stress resistance on Bacillus anthracis. J Bacteriol 194(5):925–931. doi:10.1128/jb.06005-11
Tu WY, Pohl S, Gray J, Robinson NJ, Harwood CR, Waldron KJ (2012) Cellular iron distribution in Bacillus anthracis. J Bacteriol 194(5):932–940. doi:10.1128/jb.06195-11
van Schaik W, Chateau A, Dillies MA, Coppee JY, Sonenshein AL, Fouet A (2009) The global regulator CodY regulates toxin gene expression in Bacillus anthracis and is required for full virulence. Infect Immun 77(10):4437–4445. doi:10.1128/iai.00716-09
van Schaik W, Prigent J, Fouet A (2007) The stringent response of Bacillus anthracis contributes to sporulation but not to virulence. Microbiology 153(Pt 12):4234–4239. doi:10.1099/mic.0.2007/010355-0
Wagner C, Khan AS, Kamphausen T, Schmausser B, Unal C, Lorenz U, Fischer G, Hacker J, Steinert M (2007) Collagen binding protein Mip enables Legionella pneumophila to transmigrate through a barrier of NCI-H292 lung epithelial cells and extracellular matrix. Cell Microbiol 9(2):450–462. doi:10.1111/j.1462-5822.2006.00802.x
Xiao H, Kalman M, Ikehara K, Zemel S, Glaser G, Cashel M (1991) Residual guanosine 3′,5′-bispyrophosphate synthetic activity of relA null mutants can be eliminated by spoT null mutations. J Biol Chem 266(9):5980–5990
Xu Y, Liang X, Chen Y, Koehler TM, Hook M (2004) Identification and biochemical characterization of two novel collagen binding MSCRAMMs of Bacillus anthracis. J Biol Chem 279(50):51760–51768. doi:10.1074/jbc.M406417200
Acknowledgments
This work was funded through a grant from the National Research Foundation of Korea (NRF) through the Korean government (MSIP) (No. 2011-0030049).
Author information
Authors and Affiliations
Corresponding authors
Additional information
Se Kye Kim and Moon Kyoo Park equally contributed to this work.
Rights and permissions
About this article
Cite this article
Kim, S.K., Park, M.K., Kim, S.H. et al. Identification of Stringent Response-Related and Potential Serological Proteins Released from Bacillus anthracis Overexpressing the RelA/SpoT Homolog, Rsh Bant . Curr Microbiol 69, 436–444 (2014). https://doi.org/10.1007/s00284-014-0606-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00284-014-0606-8