메뉴 건너뛰기




Volumn 17, Issue 5, 2004, Pages 447-455

The HopPtoF Locus of Pseudomonas syringae pv. tomato DC3000 encodes a type III chaperone and a cognate effector

Author keywords

[No Author keywords available]

Indexed keywords

ANIMALIA; BACTERIA (MICROORGANISMS); LYCOPERSICON ESCULENTUM; NEGIBACTERIA; PROKARYOTA; PSEUDOMONAS; PSEUDOMONAS SYRINGAE; PSEUDOMONAS SYRINGAE PV. PHASEOLICOLA; PSEUDOMONAS SYRINGAE PV. TOMATO;

EID: 1942504720     PISSN: 08940282     EISSN: None     Source Type: Journal    
DOI: 10.1094/MPMI.2004.17.5.447     Document Type: Article
Times cited : (35)

References (46)
  • 1
    • 0035340922 scopus 로고    scopus 로고
    • How and when are substrates selected for type III secretion?
    • Aldridge, P., and Hughes, K. T. 2001. How and when are substrates selected for type III secretion? Trends Microbiol. 9:209-214.
    • (2001) Trends Microbiol. , vol.9 , pp. 209-214
    • Aldridge, P.1    Hughes, K.T.2
  • 2
    • 0141789821 scopus 로고    scopus 로고
    • Pseudomonas syringae pv. tomato DC3000 HopPtoM (CEL ORF3) is important for lesion formation but not growth in tomato and is secreted and translocated by the Hrp type III secretion system in a chaperone-dependent manner
    • Badel, J. L., Nomura, K., Bandyopadhyay, S., Shimizu, R., Collmer, A., and He, S. Y. 2003. Pseudomonas syringae pv. tomato DC3000 HopPtoM (CEL ORF3) is important for lesion formation but not growth in tomato and is secreted and translocated by the Hrp type III secretion system in a chaperone-dependent manner. Mol. Microbiol. 49:1239-1251.
    • (2003) Mol. Microbiol. , vol.49 , pp. 1239-1251
    • Badel, J.L.1    Nomura, K.2    Bandyopadhyay, S.3    Shimizu, R.4    Collmer, A.5    He, S.Y.6
  • 3
    • 0034194180 scopus 로고    scopus 로고
    • From flagellum assembly to virulence: The extended family of type III export chaperones
    • Bennett, J. C. Q., and Hughes, C. 2000. From flagellum assembly to virulence: The extended family of type III export chaperones. Trends Microbiol. 8:202-204.
    • (2000) Trends Microbiol. , vol.8 , pp. 202-204
    • Bennett, J.C.Q.1    Hughes, C.2
  • 6
    • 0033943054 scopus 로고    scopus 로고
    • LcrQ/YscM1, regulators of the Yersinia yop virulon, are injected into host cells by a chaperone-dependent mechanism
    • Cambronne, E. D., Cheng, L. W., and Schneewind, O. 2000. LcrQ/YscM1, regulators of the Yersinia yop virulon, are injected into host cells by a chaperone-dependent mechanism. Mol. Microbiol. 37:263-73.
    • (2000) Mol. Microbiol. , vol.37 , pp. 263-273
    • Cambronne, E.D.1    Cheng, L.W.2    Schneewind, O.3
  • 7
    • 0032130158 scopus 로고    scopus 로고
    • Determinants of pathogenicity and avirulence in plant pathogenic bacteria
    • Collmer, A. 1998. Determinants of pathogenicity and avirulence in plant pathogenic bacteria. Curr. Opin. Plant Biol. 1:329-335.
    • (1998) Curr. Opin. Plant Biol. , vol.1 , pp. 329-335
    • Collmer, A.1
  • 8
    • 0036791896 scopus 로고    scopus 로고
    • Genomic mining type in secretion system effectors in Pseudomonas syringae yields new picks for all TTSS prospectors
    • Collmer, A., Lindeberg, M., Petnicki-Ocwieja, T., Schneider, D., and Alfano, J. 2002. Genomic mining type in secretion system effectors in Pseudomonas syringae yields new picks for all TTSS prospectors. Trends Microbiol. 10:462-467.
    • (2002) Trends Microbiol. , vol.10 , pp. 462-467
    • Collmer, A.1    Lindeberg, M.2    Petnicki-Ocwieja, T.3    Schneider, D.4    Alfano, J.5
  • 9
    • 0037387960 scopus 로고    scopus 로고
    • Pseudomonas syringae exchangeable effector loci: Sequence diversity in representative pathovars and virulence function in P. syringae pv. syringae B728a
    • Deng, W. L., Rehm, A. H., Charkowski, A. O., Rojas, C. M., and Collmer, A. 2003. Pseudomonas syringae exchangeable effector loci: sequence diversity in representative pathovars and virulence function in P. syringae pv. syringae B728a. J. Bacteriol. 185:2592-2602.
    • (2003) J. Bacteriol. , vol.185 , pp. 2592-2602
    • Deng, W.L.1    Rehm, A.H.2    Charkowski, A.O.3    Rojas, C.M.4    Collmer, A.5
  • 11
    • 0031801744 scopus 로고    scopus 로고
    • Identification of a specific chaperone for SptP, a substrate of the centisome 63 type III secretion system of Salmonella typhimurium
    • Fu, Y., and Galan, J. E. 1998. Identification of a specific chaperone for SptP, a substrate of the centisome 63 type III secretion system of Salmonella typhimurium. J. Bacteriol. 180:3393-3399.
    • (1998) J. Bacteriol. , vol.180 , pp. 3393-3399
    • Fu, Y.1    Galan, J.E.2
  • 12
    • 0033591446 scopus 로고    scopus 로고
    • Type III secretion machines: Bacterial devices for protein delivery into host cells
    • Galan, J. E., and Collmer, A. 1999. Type III secretion machines: bacterial devices for protein delivery into host cells. Science 284:1322-1328.
    • (1999) Science , vol.284 , pp. 1322-1328
    • Galan, J.E.1    Collmer, A.2
  • 13
    • 0036734864 scopus 로고    scopus 로고
    • The DspB/F protein of Erwinia amylovora is a type III secretion chaperone ensuring efficient intrabacterial production of the Hrp-secreted DspA/E pathogenicity factor
    • Gaudriault, S., Paulin, J.-P., and Barny, M.-A. 2002. The DspB/F protein of Erwinia amylovora is a type III secretion chaperone ensuring efficient intrabacterial production of the Hrp-secreted DspA/E pathogenicity factor. Mol. Plant Pathol. 3:313-320.
    • (2002) Mol. Plant Pathol. , vol.3 , pp. 313-320
    • Gaudriault, S.1    Paulin, J.-P.2    Barny, M.-A.3
  • 14
    • 0002337352 scopus 로고    scopus 로고
    • Interaction trap/two-hybrid system to identify interacting proteins
    • F. M. Ausubel, R. Brent, R. E. Kingston, D. D. Moore, J. G. Seidman, J. A. Smith, and K. Struhl, eds. Greene Publishing Associates/John Wiley and Sons, New York
    • Golemis, E. A., Serebriiskii, I., Gyuris, J., and Brent, R. 1997. Interaction trap/two-hybrid system to identify interacting proteins. Pages 20.1.1-20.1.35 in: Current Protocols in Molecular Biology. F. M. Ausubel, R. Brent, R. E. Kingston, D. D. Moore, J. G. Seidman, J. A. Smith, and K. Struhl, eds. Greene Publishing Associates/John Wiley and Sons, New York.
    • (1997) Current Protocols in Molecular Biology , pp. 2011-20135
    • Golemis, E.A.1    Serebriiskii, I.2    Gyuris, J.3    Brent, R.4
  • 15
    • 0025977037 scopus 로고
    • Eukaryotic proteins expressed in Escherichia coli: An improved thrombin cleavage and purification of fusion proteins with glutathione S-transferase
    • Guan, K. L., and Dixon, J. E. 1991. Eukaryotic proteins expressed in Escherichia coli: An improved thrombin cleavage and purification of fusion proteins with glutathione S-transferase. Anal. Biochem. 192:262-267.
    • (1991) Anal. Biochem. , vol.192 , pp. 262-267
    • Guan, K.L.1    Dixon, J.E.2
  • 16
    • 0035136805 scopus 로고    scopus 로고
    • Functional analysis of the type HI effectors AvrRpt2 and AvrRpm1 of Pseudomonas syringae with the use of a single-copy genomic integration system
    • Guttman, D. S, and Greenberg, J. T. 2001. Functional analysis of the type HI effectors AvrRpt2 and AvrRpm1 of Pseudomonas syringae with the use of a single-copy genomic integration system. Mol. Plant-Microbe Interact. 14:145-155.
    • (2001) Mol. Plant-Microbe Interact. , vol.14 , pp. 145-155
    • Guttman, D.S.1    Greenberg, J.T.2
  • 17
    • 0036500995 scopus 로고    scopus 로고
    • A functional screen for the type III (Hrp) secretome of the plant pathogen Pseudomonas syringae
    • Guttman, D. S., Vinatzer, B. A., Sarkar, S. F., Ranall, M. V., Kettler, G., and Greenberg, J. T. 2002. A functional screen for the type III (Hrp) secretome of the plant pathogen Pseudomonas syringae. Science 295:1722-1726.
    • (2002) Science , vol.295 , pp. 1722-1726
    • Guttman, D.S.1    Vinatzer, B.A.2    Sarkar, S.F.3    Ranall, M.V.4    Kettler, G.5    Greenberg, J.T.6
  • 18
    • 0004753911 scopus 로고    scopus 로고
    • Type III protein secretion systems in plant and animal pathogenic bacteria
    • He, S. Y. 1998. Type III protein secretion systems in plant and animal pathogenic bacteria. Annu. Rev. Phytopathol. 36:363-392.
    • (1998) Annu. Rev. Phytopathol. , vol.36 , pp. 363-392
    • He, S.Y.1
  • 19
    • 0031864184 scopus 로고    scopus 로고
    • Type III protein secretion systems in bacterial pathogens of animals and plants
    • Hueck, C. J. 1998. Type III protein secretion systems in bacterial pathogens of animals and plants. Microbiol. Mol. Biol. Rev. 62:379-433.
    • (1998) Microbiol. Mol. Biol. Rev. , vol.62 , pp. 379-433
    • Hueck, C.J.1
  • 20
    • 0024976634 scopus 로고
    • Bacterial blight of soybean: Regulation of a pathogen gene determining host cultivar specificity
    • Huynh, T. V., Dahlbeck, D., and Staskawicz, B. J. 1989. Bacterial blight of soybean: regulation of a pathogen gene determining host cultivar specificity. Science 245:1374-1377.
    • (1989) Science , vol.245 , pp. 1374-1377
    • Huynh, T.V.1    Dahlbeck, D.2    Staskawicz, B.J.3
  • 21
    • 0032863184 scopus 로고    scopus 로고
    • Identification of a pathogenicity island, which contains genes for virulence and avirulence, on a large native plasmid in the bean pathogen Pseudomonas syringae pathovar phaseolicola
    • Jackson, R. W., Athanassopoulos, E., Tsiamis, G., Mansfield, J. W., Sesma, A., Arnold, D. L., Gibbon, M. J., Murillo, J., Taylor, J. D., and Vivian, A. 1999. Identification of a pathogenicity island, which contains genes for virulence and avirulence, on a large native plasmid in the bean pathogen Pseudomonas syringae pathovar phaseolicola. Proc. Natl. Acad. Sci. U.S.A. 96:10875-10880.
    • (1999) Proc. Natl. Acad. Sci. U.S.A. , vol.96 , pp. 10875-10880
    • Jackson, R.W.1    Athanassopoulos, E.2    Tsiamis, G.3    Mansfield, J.W.4    Sesma, A.5    Arnold, D.L.6    Gibbon, M.J.7    Murillo, J.8    Taylor, J.D.9    Vivian, A.10
  • 22
    • 0037205227 scopus 로고    scopus 로고
    • Two distinct Pseudomonas effector proteins interact with the Pto kinase and activate plant immunity
    • Kim, Y. J., Lin, N. C., and Martin, G. B. 2002. Two distinct Pseudomonas effector proteins interact with the Pto kinase and activate plant immunity. Cell 109:589-98.
    • (2002) Cell , vol.109 , pp. 589-598
    • Kim, Y.J.1    Lin, N.C.2    Martin, G.B.3
  • 23
    • 43349086724 scopus 로고
    • Two simple media for the demonstration of pyocyanin and fluorescein
    • King, E. O., Ward, M. K., and Raney, D. E. 1954. Two simple media for the demonstration of pyocyanin and fluorescein. J. Lab. Med. 22:301-307.
    • (1954) J. Lab. Med. , vol.22 , pp. 301-307
    • King, E.O.1    Ward, M.K.2    Raney, D.E.3
  • 24
    • 0030864196 scopus 로고    scopus 로고
    • The role of hrp genes during plant-bacterial interactions
    • Lindgren, P. B. 1997. The role of hrp genes during plant-bacterial interactions. Annu. Rev. Phytopathol. 35:129-152.
    • (1997) Annu. Rev. Phytopathol. , vol.35 , pp. 129-152
    • Lindgren, P.B.1
  • 25
    • 0037155687 scopus 로고    scopus 로고
    • RIN4 interacts with Pseudomonas syringae type in effector molecules and is required for RPM1-mediated resistance in Arabidopsis
    • Mackey, D., Holt, B. F, Wiig, A., and Dangl, J. L. 2002. RIN4 interacts with Pseudomonas syringae type in effector molecules and is required for RPM1-mediated resistance in Arabidopsis. Cell 108:743-754.
    • (2002) Cell , vol.108 , pp. 743-754
    • Mackey, D.1    Holt, B.F.2    Wiig, A.3    Dangl, J.L.4
  • 26
    • 0034044314 scopus 로고    scopus 로고
    • The PSIPRED protein structure prediction server
    • McGuffin, L. J., Bryson, K., and Jones, D. T. 2000. The PSIPRED protein structure prediction server. Bioinformatics 16:404-405.
    • (2000) Bioinformatics , vol.16 , pp. 404-405
    • McGuffin, L.J.1    Bryson, K.2    Jones, D.T.3
  • 27
    • 0034700171 scopus 로고    scopus 로고
    • Molecular signals required for type III secretion and translocation of the Xanthomonas campestris AvrBs2 protein to pepper plants
    • Mudgett, M. B, Chesnokova, O., Dahlbeck, D., Clark, E. T, Rossier, O., Bonas, U., and Staskawicz, B. J. 2000. Molecular signals required for type III secretion and translocation of the Xanthomonas campestris AvrBs2 protein to pepper plants. Proc. Natl. Acad. Sci. U.S.A. 97:13324-13329.
    • (2000) Proc. Natl. Acad. Sci. U.S.A. , vol.97 , pp. 13324-13329
    • Mudgett, M.B.1    Chesnokova, O.2    Dahlbeck, D.3    Clark, E.T.4    Rossier, O.5    Bonas, U.6    Staskawicz, B.J.7
  • 28
    • 0033018269 scopus 로고    scopus 로고
    • Characterization of the Pseudomonas syringae pv. tomato AvrRpt2 protein: Demonstration of secretion and processing during bacterial pathogenesis
    • Mudgett, M. B, and Staskawicz, B. J. 1999. Characterization of the Pseudomonas syringae pv. tomato AvrRpt2 protein: demonstration of secretion and processing during bacterial pathogenesis. Mol. Microbiol. 32:927-941.
    • (1999) Mol. Microbiol. , vol.32 , pp. 927-941
    • Mudgett, M.B.1    Staskawicz, B.J.2
  • 29
    • 0033809933 scopus 로고    scopus 로고
    • IpgD, a protein secreted by the type III secretion machinery of Shigella flexneri, is chaperoned by IpgE and implicated in entry focus formation
    • Niebuhr, K., Jouihri, N., Allaoui, A., Gounon, P., Sansonetti, P. J., Parsot, C. 2000. IpgD, a protein secreted by the type III secretion machinery of Shigella flexneri, is chaperoned by IpgE and implicated in entry focus formation. Mol. Microbiol. 38:8-19.
    • (2000) Mol. Microbiol. , vol.38 , pp. 8-19
    • Niebuhr, K.1    Jouihri, N.2    Allaoui, A.3    Gounon, P.4    Sansonetti, P.J.5    Parsot, C.6
  • 30
    • 0026574207 scopus 로고
    • Recent evidence for evolution of the genetic code
    • Osawa, S., Jukes, T. H., Watanabe, K., and Muto, A. 1992. Recent evidence for evolution of the genetic code. Microbiol. Rev. 56:229-264.
    • (1992) Microbiol. Rev. , vol.56 , pp. 229-264
    • Osawa, S.1    Jukes, T.H.2    Watanabe, K.3    Muto, A.4
  • 31
    • 0036032109 scopus 로고    scopus 로고
    • Chaperones of the type III secretion pathway: Jacks of all trades
    • Page, A. L., and Parsot, C. 2002. Chaperones of the type III secretion pathway: jacks of all trades. Mol. Microbiol. 46:1-11.
    • (2002) Mol. Microbiol. , vol.46 , pp. 1-11
    • Page, A.L.1    Parsot, C.2
  • 32
    • 0345633461 scopus 로고    scopus 로고
    • The various and varying roles of specific chaperones in type III secretion systems
    • Parsot, C., Hamiaux, C., and Page, A. L. 2003. The various and varying roles of specific chaperones in type III secretion systems. Curr. Opin. Microbiol. 6:7-14.
    • (2003) Curr. Opin. Microbiol. , vol.6 , pp. 7-14
    • Parsot, C.1    Hamiaux, C.2    Page, A.L.3
  • 34
    • 0026602983 scopus 로고
    • The cloned avirulence gene avrPto induces disease resistance in tomato cultivars containing the Pto resistance gene
    • Ronald, P. C., Salmeron, J. M., Carland, F. M., and Staskawicz, B. J. 1992. The cloned avirulence gene avrPto induces disease resistance in tomato cultivars containing the Pto resistance gene. J. Bacteriol. 174:1604-1611.
    • (1992) J. Bacteriol. , vol.174 , pp. 1604-1611
    • Ronald, P.C.1    Salmeron, J.M.2    Carland, F.M.3    Staskawicz, B.J.4
  • 35
    • 0032518163 scopus 로고    scopus 로고
    • Microbial gene identification using interpolated Markov models
    • Salzberg, S. L., Delcher, A. L., Kasif, S., and White, O. 1998. Microbial gene identification using interpolated Markov models. Nucleic Acids Res. 26:544-548.
    • (1998) Nucleic Acids Res. , vol.26 , pp. 544-548
    • Salzberg, S.L.1    Delcher, A.L.2    Kasif, S.3    White, O.4
  • 37
    • 0034487337 scopus 로고    scopus 로고
    • The Pseudomonas AvrPto protein is differentially recognized by tomato and tobacco and is localized to the plant plasma membrane
    • Shan, L., Thara, V. K., Martin, G. B., Zhou, J. M., and Tang, X. 2000. The Pseudomonas AvrPto protein is differentially recognized by tomato and tobacco and is localized to the plant plasma membrane. Plant Cell 12:2323-2338.
    • (2000) Plant Cell , vol.12 , pp. 2323-2338
    • Shan, L.1    Thara, V.K.2    Martin, G.B.3    Zhou, J.M.4    Tang, X.5
  • 38
    • 0042322616 scopus 로고    scopus 로고
    • Cleavage of Arabidopsis PBS1 by a bacterial type III effector
    • Shao, F., Golstein, C., Ade, J., Stoutemyer, M., Dixon, J. E., and Innes, R. W. 2003. Cleavage of Arabidopsis PBS1 by a bacterial type III effector. Science 301:1230-1233.
    • (2003) Science , vol.301 , pp. 1230-1233
    • Shao, F.1    Golstein, C.2    Ade, J.3    Stoutemyer, M.4    Dixon, J.E.5    Innes, R.W.6
  • 39
    • 0030448263 scopus 로고    scopus 로고
    • Initiation of plant disease resistance by physical interaction of AvrPto and Pto kinase
    • Tang, X., Frederick, R. D., Zhou, J., Halterman, D. A., Jia, Y., and Martin, G. B. 1996. Initiation of plant disease resistance by physical interaction of AvrPto and Pto kinase. Science 274:2060-2063.
    • (1996) Science , vol.274 , pp. 2060-2063
    • Tang, X.1    Frederick, R.D.2    Zhou, J.3    Halterman, D.A.4    Jia, Y.5    Martin, G.B.6
  • 41
    • 0032864453 scopus 로고    scopus 로고
    • The Avr (effector) proteins Hrma (HopPsyA) and AvrPto are secreted in culture from Pseudomonas syringae pathovars via the Hrp (type III) protein secretion system in a temperature- And pH-sensitive manner
    • van Dijk, K., Fouts, D. E., Rehm, A. H., Hill, A. R., Collmer, A., and Alfano, J. R. 1999. The Avr (effector) proteins HrmA (HopPsyA) and AvrPto are secreted in culture from Pseudomonas syringae pathovars via the Hrp (type III) protein secretion system in a temperature-and pH-sensitive manner. J. Bacteriol. 181:4790-4797.
    • (1999) J. Bacteriol. , vol.181 , pp. 4790-4797
    • Van Dijk, K.1    Fouts, D.E.2    Rehm, A.H.3    Hill, A.R.4    Collmer, A.5    Alfano, J.R.6
  • 42
    • 0036016804 scopus 로고    scopus 로고
    • The Shca protein is a molecular chaperone that assists in the secretion of the HopPsya effector from the type III (Hrp) protein secretion system of Pseudomonas syringae
    • van Dijk, K., Tam, V. C., Records, A. R., Petnicki-Ocwieia, T., and Alfano, J. R. 2002. The ShcA protein is a molecular chaperone that assists in the secretion of the HopPsyA effector from the type III (Hrp) protein secretion system of Pseudomonas syringae. Mol. Microbiol. 44:1469-1481.
    • (2002) Mol. Microbiol. , vol.44 , pp. 1469-1481
    • Van Dijk, K.1    Tam, V.C.2    Records, A.R.3    Petnicki-Ocwieia, T.4    Alfano, J.R.5
  • 43
    • 0034090630 scopus 로고    scopus 로고
    • The gene coding for the Hrp pilus structural protein is required for type III secretion of Hrp and Avr proteins in Pseudomonas syringae pv. tomato
    • Wei, W., Plovanich-Jones, A., Deng, W. L., Jin, Q. L., Collmer, A., Huang, H. C., and He, S.-Y. 2000. The gene coding for the Hrp pilus structural protein is required for type III secretion of Hrp and Avr proteins in Pseudomonas syringae pv. tomato. Proc. Natl. Acad. Sci. U.S.A. 97:2247-2252.
    • (2000) Proc. Natl. Acad. Sci. U.S.A. , vol.97 , pp. 2247-2252
    • Wei, W.1    Plovanich-Jones, A.2    Deng, W.L.3    Jin, Q.L.4    Collmer, A.5    Huang, H.C.6    He, S.-Y.7
  • 44
    • 0033936539 scopus 로고    scopus 로고
    • Prospects for understanding avirulence gene function
    • White, F. F., Yang, B., and Johnson, L. B. 2000. Prospects for understanding avirulence gene function. Curr. Opin. Plant Biol. 3:291-298.
    • (2000) Curr. Opin. Plant Biol. , vol.3 , pp. 291-298
    • White, F.F.1    Yang, B.2    Johnson, L.B.3
  • 45
    • 0032145159 scopus 로고    scopus 로고
    • AvrXalO contains an acidic transcriptional activation domain in the functionally conserved C terminus
    • Zhu, W., Yang, B., Chittoor, J. M., Johnson, L. B., and White, F. F. 1998. AvrXalO contains an acidic transcriptional activation domain in the functionally conserved C terminus. Mol. Plant-Microbe Interact. 11:824-832.
    • (1998) Mol. Plant-Microbe Interact. , vol.11 , pp. 824-832
    • Zhu, W.1    Yang, B.2    Chittoor, J.M.3    Johnson, L.B.4    White, F.F.5
  • 46
    • 0036050978 scopus 로고    scopus 로고
    • Identification of novel hrp-regulated genes through functional genomic analysis of the Pseudomonas syringae pv. tomato DC3000 genome
    • Zwiesler-Vollick, J., Plovanich-Jones, A. E., Nomura, K., Bandyopadhyay, S., Joardar, V., Kunkel, B. N., and He, S. Y. 2002. Identification of novel hrp-regulated genes through functional genomic analysis of the Pseudomonas syringae pv. tomato DC3000 genome. Mol. Microbiol. 45:1207-1218.
    • (2002) Mol. Microbiol. , vol.45 , pp. 1207-1218
    • Zwiesler-Vollick, J.1    Plovanich-Jones, A.E.2    Nomura, K.3    Bandyopadhyay, S.4    Joardar, V.5    Kunkel, B.N.6    He, S.Y.7


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.