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Volumn 111, Issue 13, 2014, Pages 4874-4879

Single-molecule spectroscopy reveals polymer effects of disordered proteins in crowded environments

Author keywords

Excluded volume screening; Flory Huggins theory; Single molecule FRET; Unfolded state collapse

Indexed keywords

INTEGRASE; INTRINSICALLY DISORDERED PROTEIN; POLYMER; POLYPEPTIDE; PROTHYMOSIN ALPHA; VIRUS ENZYME;

EID: 84897513201     PISSN: 00278424     EISSN: 10916490     Source Type: Journal    
DOI: 10.1073/pnas.1322611111     Document Type: Article
Times cited : (202)

References (56)
  • 1
    • 14644435825 scopus 로고    scopus 로고
    • Intrinsically unstructured proteins and their functions
    • Dyson HJ, Wright PE (2005) Intrinsically unstructured proteins and their functions. Nat Rev Mol Cell Biol 6(3):197-208.
    • (2005) Nat Rev Mol Cell Biol , vol.6 , Issue.3 , pp. 197-208
    • Dyson, H.J.1    Wright, P.E.2
  • 3
    • 84879177976 scopus 로고    scopus 로고
    • Describing intrinsically disordered proteins at atomic resolution by NMR
    • Jensen MR, Ruigrok RW, Blackledge M (2013) Describing intrinsically disordered proteins at atomic resolution by NMR. Curr Opin Struct Biol 23(3):426-435.
    • (2013) Curr Opin Struct Biol , vol.23 , Issue.3 , pp. 426-435
    • Jensen, M.R.1    Ruigrok, R.W.2    Blackledge, M.3
  • 5
    • 77957037991 scopus 로고    scopus 로고
    • Single-molecule fluorescence studies of intrinsically disordered proteins
    • Ferreon AC, Moran CR, Gambin Y, Deniz AA (2010) Single-molecule fluorescence studies of intrinsically disordered proteins. Methods Enzymol 472:179-204.
    • (2010) Methods Enzymol , vol.472 , pp. 179-204
    • Ferreon, A.C.1    Moran, C.R.2    Gambin, Y.3    Deniz, A.A.4
  • 6
    • 84865333057 scopus 로고    scopus 로고
    • Application of confocal singlemolecule FRET to intrinsically disordered proteins
    • Schuler B, Müller-Späth S, Soranno A, Nettels D (2012) Application of confocal singlemolecule FRET to intrinsically disordered proteins. Methods Mol Biol 896:21-45.
    • (2012) Methods Mol Biol , vol.896 , pp. 21-45
    • Schuler, B.1    Müller-Späth, S.2    Soranno, A.3    Nettels, D.4
  • 7
    • 84879327823 scopus 로고    scopus 로고
    • Modulation of allostery by protein intrinsic disorder
    • Ferreon AC, Ferreon JC, Wright PE, Deniz AA (2013) Modulation of allostery by protein intrinsic disorder. Nature 498(7454):390-394.
    • (2013) Nature , vol.498 , Issue.7454 , pp. 390-394
    • Ferreon, A.C.1    Ferreon, J.C.2    Wright, P.E.3    Deniz, A.A.4
  • 8
    • 84871427941 scopus 로고    scopus 로고
    • Describing sequence-ensemble relationships for intrinsically disordered proteins
    • Mao AH, Lyle N, Pappu RV (2013) Describing sequence-ensemble relationships for intrinsically disordered proteins. Biochem J 449(2):307-318.
    • (2013) Biochem J , vol.449 , Issue.2 , pp. 307-318
    • Mao, A.H.1    Lyle, N.2    Pappu, R.V.3
  • 9
    • 84885449854 scopus 로고    scopus 로고
    • A quantitative measure for protein conformational heterogeneity
    • Lyle N, Das RK, Pappu RV (2013) A quantitative measure for protein conformational heterogeneity. J Chem Phys 139(12):121907.
    • (2013) J Chem Phys , vol.139 , Issue.12 , pp. 121907
    • Lyle, N.1    Das, R.K.2    Pappu, R.V.3
  • 10
    • 79959903065 scopus 로고    scopus 로고
    • Protein structure along the order-disorder continuum
    • Fisher CK, Stultz CM (2011) Protein structure along the order-disorder continuum. J Am Chem Soc 133(26):10022-10025.
    • (2011) J Am Chem Soc , vol.133 , Issue.26 , pp. 10022-10025
    • Fisher, C.K.1    Stultz, C.M.2
  • 11
    • 77957092799 scopus 로고    scopus 로고
    • From the Cover: Charge interactions can dominate the dimensions of intrinsically disordered proteins
    • Müller-Späth S, et al. (2010) From the Cover: Charge interactions can dominate the dimensions of intrinsically disordered proteins. Proc Natl Acad Sci USA 107(33): 14609-14614.
    • (2010) Proc Natl Acad Sci USA , vol.107 , Issue.33 , pp. 14609-14614
    • Müller-Späth, S.1
  • 12
    • 72449139985 scopus 로고    scopus 로고
    • Intrinsically disordered proteins and their environment: Effects of strong denaturants, temperature, pH, counter ions, membranes, binding partners, osmolytes, and macromolecular crowding
    • Uversky VN (2009) Intrinsically disordered proteins and their environment: Effects of strong denaturants, temperature, pH, counter ions, membranes, binding partners, osmolytes, and macromolecular crowding. Protein J 28(7-8):305-325.
    • (2009) Protein J , vol.28 , Issue.7-8 , pp. 305-325
    • Uversky, V.N.1
  • 13
    • 41049090929 scopus 로고    scopus 로고
    • Macromolecular crowding and confinement: Biochemical, biophysical, and potential physiological consequences
    • Zhou HX, Rivas GN, Minton AP (2008) Macromolecular crowding and confinement: Biochemical, biophysical, and potential physiological consequences. Annu Rev Biophys 37:375-397.
    • (2008) Annu Rev Biophys , vol.37 , pp. 375-397
    • Zhou, H.X.1    Rivas, G.N.2    Minton, A.P.3
  • 14
    • 79551687316 scopus 로고    scopus 로고
    • Protein folding in the cell: Challenges and progress
    • Gershenson A, Gierasch LM (2011) Protein folding in the cell: Challenges and progress. Curr Opin Struct Biol 21(1):32-41.
    • (2011) Curr Opin Struct Biol , vol.21 , Issue.1 , pp. 32-41
    • Gershenson, A.1    Gierasch, L.M.2
  • 16
    • 29544433937 scopus 로고    scopus 로고
    • Macromolecular crowding in the Escherichia coli periplasm maintains alpha-synuclein disorder
    • McNulty BC, Young GB, Pielak GJ (2006) Macromolecular crowding in the Escherichia coli periplasm maintains alpha-synuclein disorder. J Mol Biol 355(5):893-897.
    • (2006) J Mol Biol , vol.355 , Issue.5 , pp. 893-897
    • McNulty, B.C.1    Young, G.B.2    Pielak, G.J.3
  • 17
    • 4544252011 scopus 로고    scopus 로고
    • The effect of macromolecular crowding on protein aggregation and amyloid fibril formation
    • Munishkina LA, Cooper EM, Uversky VN, Fink AL (2004) The effect of macromolecular crowding on protein aggregation and amyloid fibril formation. J Mol Recognit 17(5): 456-464.
    • (2004) J Mol Recognit , vol.17 , Issue.5 , pp. 456-464
    • Munishkina, L.A.1    Cooper, E.M.2    Uversky, V.N.3    Fink, A.L.4
  • 18
    • 79959807835 scopus 로고    scopus 로고
    • Protein disorder prevails under crowded conditions
    • Szasz CS, et al. (2011) Protein disorder prevails under crowded conditions. Biochemistry 50(26):5834-5844.
    • (2011) Biochemistry , vol.50 , Issue.26 , pp. 5834-5844
    • Szasz, C.S.1
  • 19
    • 77955044557 scopus 로고    scopus 로고
    • Macromolecular crowding remodels the energy landscape of a protein by favoring a more compact unfolded state
    • Hong JA, Gierasch LM (2010) Macromolecular crowding remodels the energy landscape of a protein by favoring a more compact unfolded state. J Am Chem Soc 132(30):10445-10452.
    • (2010) J Am Chem Soc , vol.132 , Issue.30 , pp. 10445-10452
    • Hong, J.A.1    Gierasch, L.M.2
  • 20
    • 84873326077 scopus 로고    scopus 로고
    • Direct observation of protein unfolded state compaction in the presence of macromolecular crowding
    • Mikaelsson T, Adén J, Johansson LBA, Wittung-Stafshede P (2013) Direct observation of protein unfolded state compaction in the presence of macromolecular crowding. Biophys J 104(3):694-704.
    • (2013) Biophys J , vol.104 , Issue.3 , pp. 694-704
    • Mikaelsson, T.1    Adén, J.2    Lba, J.3    Wittung-Stafshede, P.4
  • 21
    • 79951841821 scopus 로고    scopus 로고
    • Effects of macromolecular crowding on an intrinsically disordered protein characterized by small-angle neutron scattering with contrast matching
    • Johansen D, Jeffries CM, Hammouda B, Trewhella J, Goldenberg DP (2011) Effects of macromolecular crowding on an intrinsically disordered protein characterized by small-angle neutron scattering with contrast matching. Biophys J 100(4):1120-1128.
    • (2011) Biophys J , vol.100 , Issue.4 , pp. 1120-1128
    • Johansen, D.1    Jeffries, C.M.2    Hammouda, B.3    Trewhella, J.4    Goldenberg, D.P.5
  • 22
    • 84860863700 scopus 로고    scopus 로고
    • Cell-free formation of RNA granules: Bound RNAs identify features and components of cellular assemblies
    • Han TW, et al. (2012) Cell-free formation of RNA granules: Bound RNAs identify features and components of cellular assemblies. Cell 149(4):768-779.
    • (2012) Cell , vol.149 , Issue.4 , pp. 768-779
    • Han, T.W.1
  • 23
    • 84862776582 scopus 로고    scopus 로고
    • Phase transitions in the assembly of multivalent signalling proteins
    • Li PL, et al. (2012) Phase transitions in the assembly of multivalent signalling proteins. Nature 483(7389):336-340.
    • (2012) Nature , vol.483 , Issue.7389 , pp. 336-340
    • Li, P.L.1
  • 24
    • 79955832506 scopus 로고    scopus 로고
    • Soft active aggregates: Mechanics, dynamics and self-assembly of liquid-like intracellular protein bodies
    • Brangwynne CP (2011) Soft active aggregates: Mechanics, dynamics and self-assembly of liquid-like intracellular protein bodies. Soft Matter 7(7):3052-3059.
    • (2011) Soft Matter , vol.7 , Issue.7 , pp. 3052-3059
    • Brangwynne, C.P.1
  • 25
    • 0034695924 scopus 로고    scopus 로고
    • The yeast nuclear pore complex: Composition, architecture, and transport mechanism
    • Rout MP, et al. (2000) The yeast nuclear pore complex: Composition, architecture, and transport mechanism. J Cell Biol 148(4):635-651.
    • (2000) J Cell Biol , vol.148 , Issue.4 , pp. 635-651
    • Rout, M.P.1
  • 26
    • 77951298407 scopus 로고    scopus 로고
    • Models of macromolecular crowding effects and the need for quantitative comparisons with experiment
    • Elcock AH (2010) Models of macromolecular crowding effects and the need for quantitative comparisons with experiment. Curr Opin Struct Biol 20(2):196-206.
    • (2010) Curr Opin Struct Biol , vol.20 , Issue.2 , pp. 196-206
    • Elcock, A.H.1
  • 27
    • 84867048390 scopus 로고    scopus 로고
    • Polymer scaling laws of unfolded and intrinsically disordered proteins quantified with single-molecule spectroscopy
    • Hofmann H, et al. (2012) Polymer scaling laws of unfolded and intrinsically disordered proteins quantified with single-molecule spectroscopy. Proc Natl Acad Sci USA 109(40): 16155-16160.
    • (2012) Proc Natl Acad Sci USA , vol.109 , Issue.40 , pp. 16155-16160
    • Hofmann, H.1
  • 28
    • 84862076708 scopus 로고    scopus 로고
    • Quantifying internal friction in unfolded and intrinsically disordered proteins with single-molecule spectroscopy
    • Soranno A, et al. (2012) Quantifying internal friction in unfolded and intrinsically disordered proteins with single-molecule spectroscopy. Proc Natl Acad Sci USA 109(44): 17800-17806.
    • (2012) Proc Natl Acad Sci USA , vol.109 , Issue.44 , pp. 17800-17806
    • Soranno, A.1
  • 29
    • 0026240517 scopus 로고
    • Asymptotic-behavior and long-range interactions in aqueous-solutions of poly(ethylene oxide)
    • Devanand K, Selser JC (1991) Asymptotic-behavior and long-range interactions in aqueous-solutions of poly(ethylene oxide). Macromolecules 24(22):5943-5947.
    • (1991) Macromolecules , vol.24 , Issue.22 , pp. 5943-5947
    • Devanand, K.1    Selser, J.C.2
  • 30
    • 0026344818 scopus 로고
    • Estimation of macromolecule concentrations and excluded volume effects for the cytoplasm of Escherichia coli
    • Zimmerman SB, Trach SO (1991) Estimation of macromolecule concentrations and excluded volume effects for the cytoplasm of Escherichia coli. J Mol Biol 222(3):599-620.
    • (1991) J Mol Biol , vol.222 , Issue.3 , pp. 599-620
    • Zimmerman, S.B.1    Trach, S.O.2
  • 32
    • 0034669882 scopus 로고    scopus 로고
    • Why are "natively unfolded" proteins unstructured under physiologic conditions?
    • Uversky VN, Gillespie JR, Fink AL (2000) Why are "natively unfolded" proteins unstructured under physiologic conditions? Proteins 41(3):415-427.
    • (2000) Proteins , vol.41 , Issue.3 , pp. 415-427
    • Uversky, V.N.1    Gillespie, J.R.2    Fink, A.L.3
  • 33
    • 77952335311 scopus 로고    scopus 로고
    • Net charge per residue modulates conformational ensembles of intrinsically disordered proteins
    • Mao AH, Crick SL, Vitalis A, Chicoine CL, Pappu RV (2010) Net charge per residue modulates conformational ensembles of intrinsically disordered proteins. Proc Natl Acad Sci USA 107(18):8183-8188.
    • (2010) Proc Natl Acad Sci USA , vol.107 , Issue.18 , pp. 8183-8188
    • Mao, A.H.1    Crick, S.L.2    Vitalis, A.3    Chicoine, C.L.4    Pappu, R.V.5
  • 34
    • 84882364963 scopus 로고    scopus 로고
    • Conformations of intrinsically disordered proteins are influenced by linear sequence distributions of oppositely charged residues
    • Das RK, Pappu RV (2013) Conformations of intrinsically disordered proteins are influenced by linear sequence distributions of oppositely charged residues. Proc Natl Acad Sci USA 110(33):13392-13397.
    • (2013) Proc Natl Acad Sci USA , vol.110 , Issue.33 , pp. 13392-13397
    • Das, R.K.1    Pappu, R.V.2
  • 35
    • 67749142097 scopus 로고    scopus 로고
    • Protein folding, protein collapse, and Tanford's transfer model: Lessons from single-molecule FRET
    • Ziv G, Haran G (2009) Protein folding, protein collapse, and Tanford's transfer model: Lessons from single-molecule FRET. J Am Chem Soc 131(8):2942-2947.
    • (2009) J Am Chem Soc , vol.131 , Issue.8 , pp. 2942-2947
    • Ziv, G.1    Haran, G.2
  • 36
    • 16344389134 scopus 로고    scopus 로고
    • Molecular crowding enhances native state stability and refolding rates of globular proteins
    • Cheung MS, Klimov D, Thirumalai D (2005) Molecular crowding enhances native state stability and refolding rates of globular proteins. Proc Natl Acad Sci USA 102(13): 4753-4758.
    • (2005) Proc Natl Acad Sci USA , vol.102 , Issue.13 , pp. 4753-4758
    • Cheung, M.S.1    Klimov, D.2    Thirumalai, D.3
  • 37
    • 16344364032 scopus 로고    scopus 로고
    • Models for excluded volume interaction between an unfolded protein and rigid macromolecular cosolutes: Macromolecular crowding and protein stability revisited
    • Minton AP (2005) Models for excluded volume interaction between an unfolded protein and rigid macromolecular cosolutes: Macromolecular crowding and protein stability revisited. Biophys J 88(2):971-985.
    • (2005) Biophys J , vol.88 , Issue.2 , pp. 971-985
    • Minton, A.P.1
  • 38
    • 77049106311 scopus 로고    scopus 로고
    • Dependence of protein folding stability and dynamics on the density and composition of macromolecular crowders
    • Mittal J, Best RB (2010) Dependence of protein folding stability and dynamics on the density and composition of macromolecular crowders. Biophys J 98(2):315-320.
    • (2010) Biophys J , vol.98 , Issue.2 , pp. 315-320
    • Mittal, J.1    Best, R.B.2
  • 39
    • 0019621126 scopus 로고
    • Conformations of polydisperse polymer-solutions - Bimodal distribution
    • Joanny JF, Grant P, Pincus P, Turkevich LA (1981) Conformations of polydisperse polymer-solutions - bimodal distribution. J Appl Phys 52(10):5943-5948.
    • (1981) J Appl Phys , vol.52 , Issue.10 , pp. 5943-5948
    • Joanny, J.F.1    Grant, P.2    Pincus, P.3    Turkevich, L.A.4
  • 40
    • 22944433429 scopus 로고
    • Theory of polymer solutions at intermediate concentration
    • Edwards SF (1966) Theory of polymer solutions at intermediate concentration. Proc Phys Soc Lond 88(560P):265-280.
    • (1966) Proc Phys Soc Lond , vol.88 , Issue.560 , pp. 265-280
    • Edwards, S.F.1
  • 42
    • 33748454896 scopus 로고    scopus 로고
    • Toward an accurate theoretical framework for describing ensembles for proteins under strongly denaturing conditions
    • Tran HT, Pappu RV (2006) Toward an accurate theoretical framework for describing ensembles for proteins under strongly denaturing conditions. Biophys J 91(5):1868-1886.
    • (2006) Biophys J , vol.91 , Issue.5 , pp. 1868-1886
    • Tran, H.T.1    Pappu, R.V.2
  • 43
    • 0039997134 scopus 로고
    • The renormalization-group and critical phenomena
    • Wilson KG (1983) The renormalization-group and critical phenomena. Rev Mod Phys 55(3):583-600.
    • (1983) Rev Mod Phys , vol.55 , Issue.3 , pp. 583-600
    • Wilson, K.G.1
  • 44
    • 0009231265 scopus 로고
    • Interaction effects on the size of a polymer-chain in ternary solutions - A renormalization-group study
    • Schäfer L, Kappeler C (1993) Interaction effects on the size of a polymer-chain in ternary solutions - a renormalization-group study. J Chem Phys 99(8):6135-6154.
    • (1993) J Chem Phys , vol.99 , Issue.8 , pp. 6135-6154
    • Schäfer, L.1    Kappeler, C.2
  • 45
    • 0022691129 scopus 로고
    • Chain dimension of a guest polymer in the semidilute solution of compatible and incompatible polymers
    • Nose T (1986) Chain dimension of a guest polymer in the semidilute solution of compatible and incompatible polymers. J Phys (Paris) 47(3):517-527.
    • (1986) J Phys (Paris) , vol.47 , Issue.3 , pp. 517-527
    • Nose, T.1
  • 46
    • 84872904773 scopus 로고    scopus 로고
    • Quantitative assessment of the relative contributions of steric repulsion and chemical interactions to macromolecular crowding
    • Minton AP (2013) Quantitative assessment of the relative contributions of steric repulsion and chemical interactions to macromolecular crowding. Biopolymers 99(4): 239-244.
    • (2013) Biopolymers , vol.99 , Issue.4 , pp. 239-244
    • Minton, A.P.1
  • 47
    • 84877014249 scopus 로고    scopus 로고
    • Soft interactions and crowding
    • Sarkar M, Li C, Pielak GJ (2013) Soft interactions and crowding. Biophys. Rev. 5(2): 187-194.
    • (2013) Biophys. Rev , vol.5 , Issue.2 , pp. 187-194
    • Sarkar, M.1    Li, C.2    Pielak, G.J.3
  • 48
    • 84877808384 scopus 로고    scopus 로고
    • Crowding induced entropy-enthalpy compensation in protein association equilibria
    • Kim YC, Mittal J (2013) Crowding induced entropy-enthalpy compensation in protein association equilibria. Phys Rev Lett 110(20):208102-1-208102-5.
    • (2013) Phys Rev Lett , vol.110 , Issue.20 , pp. 2081021-2081025
    • Kim, Y.C.1    Mittal, J.2
  • 49
    • 0034255123 scopus 로고    scopus 로고
    • Speeding molecular recognition by using the folding funnel: The fly-casting mechanism
    • Shoemaker BA, Portman JJ, Wolynes PG (2000) Speeding molecular recognition by using the folding funnel: The fly-casting mechanism. Proc Natl Acad Sci USA 97(16): 8868-8873.
    • (2000) Proc Natl Acad Sci USA , vol.97 , Issue.16 , pp. 8868-8873
    • Shoemaker, B.A.1    Portman, J.J.2    Wolynes, P.G.3
  • 50
    • 77649266958 scopus 로고    scopus 로고
    • Capillarity theory for the fly-casting mechanism
    • Trizac E, Levy Y, Wolynes PG (2010) Capillarity theory for the fly-casting mechanism. Proc Natl Acad Sci USA 107(7):2746-2750.
    • (2010) Proc Natl Acad Sci USA , vol.107 , Issue.7 , pp. 2746-2750
    • Trizac, E.1    Levy, Y.2    Wolynes, P.G.3
  • 51
    • 65249099497 scopus 로고    scopus 로고
    • Fundamental aspects of protein-protein association kinetics
    • Schreiber G, Haran G, Zhou HX (2009) Fundamental aspects of protein-protein association kinetics. Chem Rev 109(3):839-860.
    • (2009) Chem Rev , vol.109 , Issue.3 , pp. 839-860
    • Schreiber, G.1    Haran, G.2    Zhou, H.X.3
  • 52
    • 0034713257 scopus 로고    scopus 로고
    • Nuclear distribution of prothymosin alpha and parathymosin: Evidence that prothymosin alpha is associated with RNA synthesis processing and parathymosin with early DNA replication
    • Vareli K, Frangou-Lazaridis M, van der Kraan I, Tsolas O, van Driel R (2000) Nuclear distribution of prothymosin alpha and parathymosin: Evidence that prothymosin alpha is associated with RNA synthesis processing and parathymosin with early DNA replication. Exp Cell Res 257(1):152-161.
    • (2000) Exp Cell Res , vol.257 , Issue.1 , pp. 152-161
    • Vareli, K.1    Frangou-Lazaridis, M.2    Van Der Kraan, I.3    Tsolas, O.4    Van Driel, R.5
  • 53
    • 0033802916 scopus 로고    scopus 로고
    • Mobility within the nucleus and neighboring cytosol is a key feature of prothymosin-alpha
    • Enkemann SA, Ward RD, Berger SL (2000) Mobility within the nucleus and neighboring cytosol is a key feature of prothymosin-alpha. J Histochem Cytochem 48(10): 1341-1355.
    • (2000) J Histochem Cytochem , vol.48 , Issue.10 , pp. 1341-1355
    • Enkemann, S.A.1    Ward, R.D.2    Berger, S.L.3
  • 54
    • 84861112348 scopus 로고    scopus 로고
    • Rapid perturbation of free-energy landscapes: From in vitro to in vivo
    • Gelman H, Platkov M, Gruebele M (2012) Rapid perturbation of free-energy landscapes: From in vitro to in vivo. Chemistry 18(21):6420-6427.
    • (2012) Chemistry , vol.18 , Issue.21 , pp. 6420-6427
    • Gelman, H.1    Platkov, M.2    Gruebele, M.3
  • 55
    • 84857128232 scopus 로고    scopus 로고
    • Protein-binding dynamics imaged in a living cell
    • Phillip Y, Kiss V, Schreiber G (2012) Protein-binding dynamics imaged in a living cell. Proc Natl Acad Sci USA 109(5):1461-1466.
    • (2012) Proc Natl Acad Sci USA , vol.109 , Issue.5 , pp. 1461-1466
    • Phillip, Y.1    Kiss, V.2    Schreiber, G.3
  • 56
    • 77649270851 scopus 로고    scopus 로고
    • Detecting the conformation of individual proteins in live cells
    • Sakon JJ, Weninger KR (2010) Detecting the conformation of individual proteins in live cells. Nat Methods 7(3):203-205.
    • (2010) Nat Methods , vol.7 , Issue.3 , pp. 203-205
    • Sakon, J.J.1    Weninger, K.R.2


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