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Volumn , Issue , 2008, Pages 291-317

Multidimensional Separation of Proteins with Online Electrospray Time-of-Flight Mass Spectrometric Detection

Author keywords

Cellular extract, tissue homogenate, or biological fluid; Electrospray time of flight mass spectrometry; Ion exchange (IEX) separations

Indexed keywords


EID: 72749120448     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1002/9780470276266.ch13     Document Type: Chapter
Times cited : (2)

References (50)
  • 1
    • 0001644020 scopus 로고    scopus 로고
    • The human plasma proteome: history, character, and diagnostic prospectss
    • Anderson, N.L., Anderson, N.G. (2001). The human plasma proteome: history, character, and diagnostic prospectss. Mol. Cell. Proteomics 1, 845-867.
    • (2001) Mol. Cell. Proteomics , vol.1 , pp. 845-867
    • Anderson, N.L.1    Anderson, N.G.2
  • 2
    • 84889267063 scopus 로고    scopus 로고
    • Multidimensional chromatography of intact proteins
    • Simpson, R.J., editor, Cold Spring Harbor Laboratory Press: Cold Spring Harbor, New York
    • Apffel, A. (2004). Multidimensional chromatography of intact proteins. In: Simpson, R.J., editor, Purifying Proteins for Proteomics: A Laboratory Manual. Cold Spring Harbor Laboratory Press: Cold Spring Harbor, New York pp.75-100.
    • (2004) Purifying Proteins for Proteomics: A Laboratory Manual , pp. 75-100
    • Apffel, A.1
  • 3
    • 0028883956 scopus 로고
    • Enhanced sensitivity for peptide mapping with electrospray liquid chromatography-mass spectrometry in the presence of signal suppression due to trifluoroacetic acid-containing mobile phases
    • Apffel, A., Fischer, S., Goldberg, G., Goodley, P.C., Kuhlmann, F.E. (1995). Enhanced sensitivity for peptide mapping with electrospray liquid chromatography-mass spectrometry in the presence of signal suppression due to trifluoroacetic acid-containing mobile phases. J. Chromatogr. A 712, 177-190.
    • (1995) J. Chromatogr. A , vol.712 , pp. 177-190
    • Apffel, A.1    Fischer, S.2    Goldberg, G.3    Goodley, P.C.4    Kuhlmann, F.E.5
  • 4
    • 33646013923 scopus 로고    scopus 로고
    • Mass spectrometry of macromolecular assemblies: preservation and dissociation
    • Benesch, J.L., Robinson, C.V. (2006). Mass spectrometry of macromolecular assemblies: preservation and dissociation. Curr. Opin. Struct. Biol. 6, 245-251.
    • (2006) Curr. Opin. Struct. Biol. , vol.6 , pp. 245-251
    • Benesch, J.L.1    Robinson, C.V.2
  • 6
    • 0025331978 scopus 로고
    • Automated instrumentation for comprehensive twodimensional liquid chromatography of proteins
    • Bushey, M.M., Jorgenson, J.W. (1990). Automated instrumentation for comprehensive twodimensional liquid chromatography of proteins. Anal. Chem. 62, 161-167.
    • (1990) Anal. Chem. , vol.62 , pp. 161-167
    • Bushey, M.M.1    Jorgenson, J.W.2
  • 7
    • 0035090596 scopus 로고    scopus 로고
    • Chromatofocusing nonporous reversed-phase high-performance liquid chromatography/electrospray ionization timeof-flight mass spectrometry of proteins from human breast cancer whole cell lysates: a novel two-dimensional liquid chromatography/mass spectrometry method
    • Chong, B.E., Yan, F., Lubman, D.M., Miller, F.R. (2001). Chromatofocusing nonporous reversed-phase high-performance liquid chromatography/electrospray ionization timeof-flight mass spectrometry of proteins from human breast cancer whole cell lysates: a novel two-dimensional liquid chromatography/mass spectrometry method. Rapid Commun. Mass Spectrom. 15, 291-296.
    • (2001) Rapid Commun. Mass Spectrom. , vol.15 , pp. 291-296
    • Chong, B.E.1    Yan, F.2    Lubman, D.M.3    Miller, F.R.4
  • 9
    • 0023059383 scopus 로고
    • Application of the stoichiometric displacement model of retention to anion-exchange chromatography of nucleic acids
    • Drager, R.R., Regnier, F.E. (1986). Application of the stoichiometric displacement model of retention to anion-exchange chromatography of nucleic acids. J. Chromatogr. 359, 147-155.
    • (1986) J. Chromatogr. , vol.359 , pp. 147-155
    • Drager, R.R.1    Regnier, F.E.2
  • 10
    • 0031888036 scopus 로고    scopus 로고
    • High throughput protein characterization by automated reverse-phase chromatography/electrospray tandem mass spectrometry
    • Ducret, A., Van Oostveen, I., Eng, J.K., Yates, J.R., 3rd, Aebersold, R. (1998). High throughput protein characterization by automated reverse-phase chromatography/electrospray tandem mass spectrometry. Protein Sci. 7, 706-719.
    • (1998) Protein Sci. , vol.7 , pp. 706-719
    • Ducret, A.1    Van Oostveen, I.2    Eng, J.K.3    Yates III, J.R.4    Aebersold, R.5
  • 11
    • 2442603514 scopus 로고    scopus 로고
    • Multidimensional LC-LC and LC-CE for high-resolution separations of biological molecules
    • Evans, C.R., Jorgenson, J.W. (2004). Multidimensional LC-LC and LC-CE for high-resolution separations of biological molecules. Anal. Bioanal. Chem. 378, 1952-1961.
    • (2004) Anal. Bioanal. Chem. , vol.378 , pp. 1952-1961
    • Evans, C.R.1    Jorgenson, J.W.2
  • 12
    • 0024438708 scopus 로고
    • Electrospray ionization for mass spectrometry of large biomolecules
    • Fenn, J.B., Mann, M., Meng, C.K., Wong, S.F., Whitehouse, C.M. (1989). Electrospray ionization for mass spectrometry of large biomolecules. Science 246, 64-71.
    • (1989) Science , vol.246 , pp. 64-71
    • Fenn, J.B.1    Mann, M.2    Meng, C.K.3    Wong, S.F.4    Whitehouse, C.M.5
  • 15
    • 0021771790 scopus 로고
    • Retention model for proteins in reversed-phase liquid chromatography
    • Geng, X., Regnier, F.E. (1984). Retention model for proteins in reversed-phase liquid chromatography. J. Chromatogr. 296, 15-30.
    • (1984) J. Chromatogr. , vol.296 , pp. 15-30
    • Geng, X.1    Regnier, F.E.2
  • 16
    • 0035836061 scopus 로고    scopus 로고
    • Proteomics of glycoproteins based on affinity selection of glycopeptides from tryptic digests
    • Geng, M., Zhang, X., Bina, M., Regnier, F. (2001). Proteomics of glycoproteins based on affinity selection of glycopeptides from tryptic digests. J. Chromatogr. B 752, 293-306.
    • (2001) J. Chromatogr. B , vol.752 , pp. 293-306
    • Geng, M.1    Zhang, X.2    Bina, M.3    Regnier, F.4
  • 17
    • 0001943387 scopus 로고
    • Size and charge distribution of macromolecules in living systems
    • Gianazza, E., Righetti, P.G. (1980). Size and charge distribution of macromolecules in living systems. J. Chromatog. A 193, 1-198.
    • (1980) J. Chromatog. A , vol.193 , pp. 1-198
    • Gianazza, E.1    Righetti, P.G.2
  • 18
    • 0021508912 scopus 로고
    • Two-dimensional separations: concept and promise
    • Giddings, J.C. (1984). Two-dimensional separations: concept and promise. Anal. Chem. 56, 1258A-1264A.
    • (1984) Anal. Chem. , vol.56
    • Giddings, J.C.1
  • 20
    • 0034662907 scopus 로고    scopus 로고
    • Evaluation of twodimensional gel electrophoresis-based proteome analysis technology
    • Gygi, S.P., Corthals, G.L., Zhang, Y., Rochon, Y., Aebersold, R. (2000). Evaluation of twodimensional gel electrophoresis-based proteome analysis technology. Proc. Natl. Acad. Sci. USA 97, 9390-9395.
    • (2000) Proc. Natl. Acad. Sci. USA , vol.97 , pp. 9390-9395
    • Gygi, S.P.1    Corthals, G.L.2    Zhang, Y.3    Rochon, Y.4    Aebersold, R.5
  • 21
    • 1542615528 scopus 로고    scopus 로고
    • A two-dimensional liquid-phase separation method coupled with mass spectrometry for proteomic studies of breast cancer and biomarker identification
    • Hamler, R.L., Zhu, K., Buchanan, N.S., Kreunin, P., Kachman, M.T., Miller, F.R., Lubman, D.M. (2004). A two-dimensional liquid-phase separation method coupled with mass spectrometry for proteomic studies of breast cancer and biomarker identification. Proteomics 4, 562-577.
    • (2004) Proteomics , vol.4 , pp. 562-577
    • Hamler, R.L.1    Zhu, K.2    Buchanan, N.S.3    Kreunin, P.4    Kachman, M.T.5    Miller, F.R.6    Lubman, D.M.7
  • 22
    • 33749606981 scopus 로고    scopus 로고
    • Extending top-down mass spectrometry to proteins with masses greater than 200 kilodaltons
    • Han, X., Jin, M., Breuker, K., McLafferty, F.W. (2006). Extending top-down mass spectrometry to proteins with masses greater than 200 kilodaltons. Science 314, 109-112.
    • (2006) Science , vol.314 , pp. 109-112
    • Han, X.1    Jin, M.2    Breuker, K.3    McLafferty, F.W.4
  • 23
    • 0027198862 scopus 로고
    • Identifying proteins from two-dimensional gels by molecular mass searching of peptide fragments in protein sequence databases
    • Henzel, W.J., Billeci, T.M., Stults, J.T., Wong, S.C., Grimley, C., Watanabe, C. (1993). Identifying proteins from two-dimensional gels by molecular mass searching of peptide fragments in protein sequence databases. Proc. Natl. Acad. Sci. USA 90, 5011-5015.
    • (1993) Proc. Natl. Acad. Sci. USA , vol.90 , pp. 5011-5015
    • Henzel, W.J.1    Billeci, T.M.2    Stults, J.T.3    Wong, S.C.4    Grimley, C.5    Watanabe, C.6
  • 24
    • 0033004874 scopus 로고    scopus 로고
    • Evaluation of volatile eluents and electrolytes for highperformance liquid chromatography-electrospray ionization mass spectrometry and capillary electrophoresis-electrospray ionization mass spectrometry of proteins
    • Huber, C.G., Premstaller, A. (1999). Evaluation of volatile eluents and electrolytes for highperformance liquid chromatography-electrospray ionization mass spectrometry and capillary electrophoresis-electrospray ionization mass spectrometry of proteins. I. Liquid chromatography. J. Chromatogr. A 849, 161-173.
    • (1999) I. Liquid chromatography. J. Chromatogr. A , vol.849 , pp. 161-173
    • Huber, C.G.1    Premstaller, A.2
  • 25
    • 1042275615 scopus 로고    scopus 로고
    • Modification-specific proteomics: characterization of post-translational modifications by mass spectrometry
    • Jensen, O.N. (2004). Modification-specific proteomics: characterization of post-translational modifications by mass spectrometry. Curr. Opin. Chem. Biol. 8, 33-41.
    • (2004) Curr. Opin. Chem. Biol. , vol.8 , pp. 33-41
    • Jensen, O.N.1
  • 26
    • 2642520417 scopus 로고    scopus 로고
    • Top-down proteomics
    • Kelleher, N.L. (2004). Top-down proteomics. Anal. Chem. 76, 197A-203A.
    • (2004) Anal. Chem. , vol.76
    • Kelleher, N.L.1
  • 29
    • 0037176208 scopus 로고    scopus 로고
    • Multidimensional chromatography coupled to electrospray ionization time-of-flight mass spectrometry as an alternative to two-dimensional gels for the identification and analysis of complex mixtures of intact proteins
    • Liu, H., Berger, S.J., Chakraborty, A.B., Plumb, R.S., Cohen, S.A. (2002). Multidimensional chromatography coupled to electrospray ionization time-of-flight mass spectrometry as an alternative to two-dimensional gels for the identification and analysis of complex mixtures of intact proteins. J. Chromatogr. B 782, 267-289.
    • (2002) J. Chromatogr. B , vol.782 , pp. 267-289
    • Liu, H.1    Berger, S.J.2    Chakraborty, A.B.3    Plumb, R.S.4    Cohen, S.A.5
  • 30
    • 0000950367 scopus 로고
    • Geometric approach to factor analysis for the estimation of orthogonality and practical peak capacity in comprehensive two-dimensional separations
    • Liu, Z., Patterson Jr., D.G., Lee, M.L. (1995). Geometric approach to factor analysis for the estimation of orthogonality and practical peak capacity in comprehensive two-dimensional separations. Anal. Chem. 67, 3840-3845.
    • (1995) Anal. Chem. , vol.67 , pp. 3840-3845
    • Liu, Z.1    Patterson Jr., D.G.2    Lee, M.L.3
  • 31
    • 0027608882 scopus 로고
    • Use of mass spectrometric molecular weight information to identify proteins in sequence databases
    • Mann, M., Hojrup, P., Roepstorff, P. (1993). Use of mass spectrometric molecular weight information to identify proteins in sequence databases. Biol. Mass Spectrom. 22, 338-345.
    • (1993) Biol. Mass Spectrom. , vol.22 , pp. 338-345
    • Mann, M.1    Hojrup, P.2    Roepstorff, P.3
  • 32
    • 11344286552 scopus 로고    scopus 로고
    • Fully automated micro-and nanoscale one-or two-dimensional high-performance liquid chromatography system for liquid chromatography-mass spectrometry compatible with non-volatile salts for ion exchange chromatography
    • Masuda, J., Maynard, D.M., Nishimura, M., Ueda, T., Kowalak, J.A., Markey, S.P. (2005). Fully automated micro-and nanoscale one-or two-dimensional high-performance liquid chromatography system for liquid chromatography-mass spectrometry compatible with non-volatile salts for ion exchange chromatography. J. Chromatogr. A 1063, 57-69.
    • (2005) J. Chromatogr. A , vol.1063 , pp. 57-69
    • Masuda, J.1    Maynard, D.M.2    Nishimura, M.3    Ueda, T.4    Kowalak, J.A.5    Markey, S.P.6
  • 33
    • 14344257790 scopus 로고    scopus 로고
    • Detection and localization of protein modifications by high resolutiont and emmassspectrometry
    • Meng, F., Forbes, A.J., Miller, L.M., Kelleher, N.L. (2005). Detection and localization of protein modifications by high resolutiont and emmassspectrometry.Mass Spectrom. Rev.24,126-134.
    • (2005) Mass Spectrom. Rev. , vol.24 , pp. 126-134
    • Meng, F.1    Forbes, A.J.2    Miller, L.M.3    Kelleher, N.L.4
  • 34
    • 20444473135 scopus 로고    scopus 로고
    • Evaluation of multidimensional (ion-exchange/reversed-phase) protein separations using linear and step gradients in the first dimension
    • Millea, K.M., Kass, I.J., Cohen, S.A., Krull, I.S., Gebler, J.C., Berger, S.J. (2005). Evaluation of multidimensional (ion-exchange/reversed-phase) protein separations using linear and step gradients in the first dimension. J. Chromatogr. A 1079, 287-298.
    • (2005) J. Chromatogr. A , vol.1079 , pp. 287-298
    • Millea, K.M.1    Kass, I.J.2    Cohen, S.A.3    Krull, I.S.4    Gebler, J.C.5    Berger, S.J.6
  • 35
    • 30744460403 scopus 로고    scopus 로고
    • Integration of multidimensional chromatographic protein separations with a combined "top-down'' and "bottomup'' proteomic strategy
    • Millea, K.M., Krull, I.S., Cohen, S.A., Gebler, J.C., Berger, S.J. (2006). Integration of multidimensional chromatographic protein separations with a combined "top-down'' and "bottomup'' proteomic strategy. J. Proteome. Res. 5, 135-146.
    • (2006) J. Proteome. Res. , vol.5 , pp. 135-146
    • Millea, K.M.1    Krull, I.S.2    Cohen, S.A.3    Gebler, J.C.4    Berger, S.J.5
  • 36
    • 0001001925 scopus 로고    scopus 로고
    • Effect of sampling rate on resolution in comprehensive two-dimensional liquid chromatography
    • Murphy, R.E., Schure, M.R., Foley, J.P. (1998). Effect of sampling rate on resolution in comprehensive two-dimensional liquid chromatography. Anal. Chem. 70, 1585-1594.
    • (1998) Anal. Chem. , vol.70 , pp. 1585-1594
    • Murphy, R.E.1    Schure, M.R.2    Foley, J.P.3
  • 37
    • 0242569357 scopus 로고    scopus 로고
    • "Top Down'' characterization is a complementary technique to peptide sequencing for identifying protein species in complex mixtures
    • Nemeth-Cawley, J.F., Tangarone, B.S., Rouse, J.C. (2003). "Top Down'' characterization is a complementary technique to peptide sequencing for identifying protein species in complex mixtures. J. Proteome Res. 2, 495-505.
    • (2003) J. Proteome Res. , vol.2 , pp. 495-505
    • Nemeth-Cawley, J.F.1    Tangarone, B.S.2    Rouse, J.C.3
  • 38
    • 0031184405 scopus 로고    scopus 로고
    • Two-dimensional SEC/RPLC coupled to mass spectrometry for the analysis of peptides
    • Opiteck, G.J., Jorgenson, J.W., Anderegg, R.J. (1997). Two-dimensional SEC/RPLC coupled to mass spectrometry for the analysis of peptides. Anal. Chem. 69, 2283-2291.
    • (1997) Anal. Chem. , vol.69 , pp. 2283-2291
    • Opiteck, G.J.1    Jorgenson, J.W.2    Anderegg, R.J.3
  • 39
    • 0032079807 scopus 로고    scopus 로고
    • Comprehensive twodimensional high-performance liquid chromatography for the isolation of overexpressed proteins and proteome mapping
    • Opiteck, G.J., Ramirez, S.M., Jorgenson, J.W., Moseley, M.A., III (1998). Comprehensive twodimensional high-performance liquid chromatography for the isolation of overexpressed proteins and proteome mapping. Anal. Biochem. 258, 349-361.
    • (1998) Anal. Biochem. , vol.258 , pp. 349-361
    • Opiteck, G.J.1    Ramirez, S.M.2    Jorgenson, J.W.3    Moseley III, M.A.4
  • 40
    • 0034757770 scopus 로고    scopus 로고
    • Proteomics: the move to mixtures
    • Peng, J., Gygi, S.P. (2001). Proteomics: the move to mixtures. J. Mass. Spec. 36, 1083-1091.
    • (2001) J. Mass. Spec. , vol.36 , pp. 1083-1091
    • Peng, J.1    Gygi, S.P.2
  • 41
    • 0030584123 scopus 로고    scopus 로고
    • Informational orthogonality of twodimensional chromatographic separations
    • Slonecker, P.J., Li, X., Ridgway, T.H., Dorsey, J.G. (1996). Informational orthogonality of twodimensional chromatographic separations. Anal. Chem. 68, 682-689.
    • (1996) Anal. Chem. , vol.68 , pp. 682-689
    • Slonecker, P.J.1    Li, X.2    Ridgway, T.H.3    Dorsey, J.G.4
  • 42
    • 0023654990 scopus 로고
    • A rapid and preparative method for the separation of yeast ribosomal proteins by using high-performance liquid chromatography
    • Threadgill, G.J., Conrad, R.C., Cannon, M., Craven, G.R. (1987). A rapid and preparative method for the separation of yeast ribosomal proteins by using high-performance liquid chromatography. Biochem. J. 244, 523-532.
    • (1987) Biochem. J. , vol.244 , pp. 523-532
    • Threadgill, G.J.1    Conrad, R.C.2    Cannon, M.3    Craven, G.R.4
  • 43
    • 0034653660 scopus 로고    scopus 로고
    • Isoelectric focusing nonporous RP HPLC: a two-dimensional liquidphase separation method for mapping of cellular proteins with identification using MALDITOF mass spectrometry
    • Wall, D.B., Kachman, M.T., Gong, S., Hinderer, R., Parus, S., Misek, D.E., Hanash, S.M., Lubman, D.M (2000). Isoelectric focusing nonporous RP HPLC: a two-dimensional liquidphase separation method for mapping of cellular proteins with identification using MALDITOF mass spectrometry. Anal. Chem. 72, 1099-1111.
    • (2000) Anal. Chem. , vol.72 , pp. 1099-1111
    • Wall, D.B.1    Kachman, M.T.2    Gong, S.3    Hinderer, R.4    Parus, S.5    Misek, D.E.6    Hanash, S.M.7    Lubman, D.M.8
  • 44
    • 0034806124 scopus 로고    scopus 로고
    • Isoelectric focusing nonporous silica reversed-phase high-performance liquid chromatography/electrospray ionization time-of-flight mass spectrometry: a three-dimensional liquid-phase protein separation method as applied to the human erythroleukemia cell-line
    • Wall, D.B., Kachman, M.T., Gong, S.S., Parus, S.J., Long, M.W., Lubman, D.M. (2001). Isoelectric focusing nonporous silica reversed-phase high-performance liquid chromatography/electrospray ionization time-of-flight mass spectrometry: a three-dimensional liquid-phase protein separation method as applied to the human erythroleukemia cell-line. Rapid Commun. Mass Spectrom. 15, 1649-1661.
    • (2001) Rapid Commun. Mass Spectrom. , vol.15 , pp. 1649-1661
    • Wall, D.B.1    Kachman, M.T.2    Gong, S.S.3    Parus, S.J.4    Long, M.W.5    Lubman, D.M.6
  • 45
    • 18344370335 scopus 로고    scopus 로고
    • Intact-protein based sample preparation strategies for proteome analysis in combination with mass spectrometry
    • Wang, H., Hanash, S. (2005). Intact-protein based sample preparation strategies for proteome analysis in combination with mass spectrometry. Mass Spectrom. Rev. 24, 413-426.
    • (2005) Mass Spectrom. Rev. , vol.24 , pp. 413-426
    • Wang, H.1    Hanash, S.2
  • 47
    • 27544477378 scopus 로고    scopus 로고
    • Analysis of megadalton ions using cryodetection MALDI time-of-flight mass spectrometry
    • Wenzel, R.J., Matter, U., Schultheis, L., Zenobi, R. (2005). Analysis of megadalton ions using cryodetection MALDI time-of-flight mass spectrometry. Anal. Chem. 77, 4329-4337.
    • (2005) Anal. Chem. , vol.77 , pp. 4329-4337
    • Wenzel, R.J.1    Matter, U.2    Schultheis, L.3    Zenobi, R.4
  • 48
    • 0012252011 scopus 로고    scopus 로고
    • Full subunit coverage liquid chromatography electrospray ionization mass spectrometry (LCMS{thorn}) ofan oligomeric membrane protein: cytochrome b(6) f complex from spinach and the cyanobacterium Mastigocladus laminosus
    • Whitelegge, J.P., Zhang, H., Aguilera, R., Taylor, R.M., Cramer, W.A. (2002). Full subunit coverage liquid chromatography electrospray ionization mass spectrometry (LCMS{thorn}) ofan oligomeric membrane protein: cytochrome b(6) f complex from spinach and the cyanobacterium Mastigocladus laminosus. Mol. Cell. Proteomics. 1, 816-827.
    • (2002) Mol. Cell. Proteomics. , vol.1 , pp. 816-827
    • Whitelegge, J.P.1    Zhang, H.2    Aguilera, R.3    Taylor, R.M.4    Cramer, W.A.5
  • 49
    • 0037112545 scopus 로고    scopus 로고
    • Automated postprocessing of electrospray LC/MS data for profiling protein expression in bacteria
    • Williams, T.L., Leopold, P., Musser, S. (2002). Automated postprocessing of electrospray LC/MS data for profiling protein expression in bacteria. Anal. Chem. 74, 5807-5813.
    • (2002) Anal. Chem. , vol.74 , pp. 5807-5813
    • Williams, T.L.1    Leopold, P.2    Musser, S.3
  • 50
    • 1842863231 scopus 로고    scopus 로고
    • Microscale solution isoelectricfocusing: a sample prefractionation method for comprehensive proteome analysis
    • Zuo, X., Speicher, D.W. (2004). Microscale solution isoelectricfocusing: a sample prefractionation method for comprehensive proteome analysis. Methods Mol. Biol. 244, 361-375.
    • (2004) Methods Mol. Biol. , vol.244 , pp. 361-375
    • Zuo, X.1    Speicher, D.W.2


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