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Volumn 26, Issue 18, 2012, Pages 2275-2284

Resistance to antibody neutralization in HIV-2 infection occurs in late stage disease and is associated with X4 tropism

Author keywords

C2V3C3 neutralizing domains; HIV 2 infection; neutralizing antibodies and disease progression; X4 tropism and resistance to neutralizing antibodies

Indexed keywords

IMMUNOGLOBULIN G; IMMUNOGLOBULIN G ANTIBODY; NEUTRALIZING ANTIBODY;

EID: 84870192423     PISSN: 02699370     EISSN: 14735571     Source Type: Journal    
DOI: 10.1097/QAD.0b013e328359a89d     Document Type: Article
Times cited : (20)

References (60)
  • 1
    • 0032195713 scopus 로고    scopus 로고
    • Low peripheral blood viral HIV-2 RNA in individuals with high CD4 percentage differentiates HIV-2 from HIV-1 infection
    • Berry N, Ariyoshi K, Jaffar S, Sabally S, Corrah T, Tedder R, Whittle H. Low peripheral blood viral HIV-2 RNA in individuals with high CD4 percentage differentiates HIV-2 from HIV-1 infection. J Hum Virol 1998;1:457-468. (Pubitemid 128543591)
    • (1998) Journal of Human Virology , vol.1 , Issue.7 , pp. 457-468
    • Berry, N.1    Ariyoshi, K.2    Jaffar, S.3    Sabally, S.4    Corrah, T.5    Tedder, R.6    Whittle, H.7
  • 5
    • 0034492881 scopus 로고    scopus 로고
    • Marked immunosuppressive effects of the HIV-2 envelope protein in spite of the lower HIV-2 pathogenicity
    • DOI 10.1097/00002030-200012010-00007
    • Cavaleiro R, Sousa AE, Loureiro A, Victorino RM. Marked immunosuppressive effects of the HIV-2 envelope protein in spite of the lower HIV-2 pathogenicity. AIDS 2000;14:2679-2686. (Pubitemid 32118721)
    • (2000) AIDS , vol.14 , Issue.17 , pp. 2679-2686
    • Cavaleiro, R.1    Sousa, A.E.2    Loureiro, A.3    Victorino, R.M.M.4
  • 8
    • 73549098013 scopus 로고    scopus 로고
    • Major depletion of plasmacytoid dendritic cells in HIV-2 infection: An attenuated form of HIV disease
    • Cavaleiro R, Baptista AP, Soares RS, Tendeiro R, Foxall RB, Gomes P, et al. Major depletion of plasmacytoid dendritic cells in HIV-2 infection: an attenuated form of HIV disease. PLoS Pathog 2009;5:e1000667.
    • (2009) PLoS Pathog , vol.5
    • Cavaleiro, R.1    Baptista, A.P.2    Soares, R.S.3    Tendeiro, R.4    Foxall, R.B.5    Gomes, P.6
  • 9
    • 42049115065 scopus 로고    scopus 로고
    • Tenets of protection from progression to AIDS: Lessons from the immune responses to HIV-2 infection
    • DOI 10.1586/14760584.7.3.319
    • Leligdowicz A, Rowland-Jones S. Tenets of protection from progression to AIDS: lessons from the immune responses to HIV-2 infection. Expert Rev Vaccines 2008;7:319-331. (Pubitemid 351520020)
    • (2008) Expert Review of Vaccines , vol.7 , Issue.3 , pp. 319-331
    • Leligdowicz, A.1    Rowland-Jones, S.2
  • 11
    • 84856890445 scopus 로고    scopus 로고
    • Potent intratype neutralizing activity distinguishes human immunodeficiency virus type 2 (HIV-2) from HIV-1
    • Ozkaya Sahin G, Holmgren B, da Silva Z, Nielsen J, Nowroozalizadeh S, Esbjornsson J, et al. Potent intratype neutralizing activity distinguishes human immunodeficiency virus type 2 (HIV-2) from HIV-1. J Virol 2012;86:961-971.
    • (2012) J Virol , vol.86 , pp. 961-971
    • Ozkaya Sahin, G.1    Holmgren, B.2    Da Silva, Z.3    Nielsen, J.4    Nowroozalizadeh, S.5    Esbjornsson, J.6
  • 12
    • 84863115725 scopus 로고    scopus 로고
    • Broad and potent neutralizing antibody responses elicited in natural HIV-2 infection
    • Kong R, Li H, Bibollet-Ruche F, Decker JM, Zheng NN, Gottlieb GS, et al. Broad and potent neutralizing antibody responses elicited in natural HIV-2 infection. J Virol 2012;86:947-960.
    • (2012) J Virol , vol.86 , pp. 947-960
    • Kong, R.1    Li, H.2    Bibollet-Ruche, F.3    Decker, J.M.4    Zheng, N.N.5    Gottlieb, G.S.6
  • 13
    • 84856907465 scopus 로고    scopus 로고
    • Potent autologous and heterologous neutralizing antibody responses occur in HIV-2 infection across a broad range of infection outcomes
    • de Silva TI, Aasa-Chapman M, Cotten M, Hue S, Robinson J, Bibollet-Ruche F, et al. Potent autologous and heterologous neutralizing antibody responses occur in HIV-2 infection across a broad range of infection outcomes. J Virol 2012;86:930-946.
    • (2012) J Virol , vol.86 , pp. 930-946
    • De Silva, T.I.1    Aasa-Chapman, M.2    Cotten, M.3    Hue, S.4    Robinson, J.5    Bibollet-Ruche, F.6
  • 14
    • 34248352188 scopus 로고    scopus 로고
    • Comparison of heterologous neutralizing antibody responses of human immunodeficiency virus type 1 (HIV-1)- and HIV-2-infected senegalese patients: Distinct patterns of breadth and magnitude distinguish HIV-1 and HIV-2 infections
    • DOI 10.1128/JVI.02789-06
    • Rodriguez SK, Sarr AD, MacNeil A, Thakore-Meloni S, Gueye-Ndiaye A, Traore I, et al. Comparison of heterologous neutralizing antibody responses of human immunodeficiency virus type 1 (HIV-1) - and HIV-2-infected Senegalese patients: distinct patterns of breadth and magnitude distinguish HIV-1 and HIV-2 infections. J Virol 2007;81:5331-5338. (Pubitemid 46744442)
    • (2007) Journal of Virology , vol.81 , Issue.10 , pp. 5331-5338
    • Rodriguez, S.K.1    Sarr, A.D.2    MacNeil, A.3    Thakore-Meloni, S.4    Gueye-Ndiaye, A.5    Traore, I.6    Dia, M.C.7    Mboup, S.8    Kanki, P.J.9
  • 18
    • 0028328770 scopus 로고
    • Two neutralizing domains in the V3 region in the envelope glycoprotein gp125 of HIV type 2
    • Bjorling E, Chiodi F, Utter G, Norrby E. Two neutralizing domains in the V3 region in the envelope glycoprotein gp125 of HIV type 2. J Immunol 1994;152:1952-1959. (Pubitemid 24075729)
    • (1994) Journal of Immunology , vol.152 , Issue.4 , pp. 1952-1959
    • Bjorling, E.1    Chiodi, F.2    Utter, G.3    Norrby, E.4
  • 20
    • 0025316020 scopus 로고
    • Envelope cross-reactivity between human immunodeficiency virus types 1 and 2 detected by different serological methods: Correlation between cross-neutralization and reactivity against the main neutralizing site
    • Bottiger B, Karlsson A, Andreasson PA, Naucler A, Costa CM, Norrby E, Biberfeld G. Envelope cross-reactivity between human immunodeficiency virus types 1 and 2 detected by different serological methods: correlation between crossneutralization and reactivity against the main neutralizing site. J Virol 1990;64:3492-3499. (Pubitemid 20219555)
    • (1990) Journal of Virology , vol.64 , Issue.7 , pp. 3492-3499
    • Bottiger, B.1    Karlsson, A.2    Andreasson, P.-A.3    Naucler, A.4    Mendes-Costa, C.5    Norrby, E.6    Biberfeld, G.7
  • 21
    • 0026665694 scopus 로고
    • Cross-neutralization of human immunodeficiency virus type 1 and 2 and simian immunodeficiency virus isolates
    • Robert-Guroff M, Aldrich K, Muldoon R, Stern TL, Bansal GP, Matthews TJ, et al. Cross-neutralization of human immunodeficiency virus type 1 and 2 and simian immunodeficiency virus isolates. J Virol 1992;66:3602-3608.
    • (1992) J Virol , vol.66 , pp. 3602-3608
    • Robert-Guroff, M.1    Aldrich, K.2    Muldoon, R.3    Stern, T.L.4    Bansal, G.P.5    Matthews, T.J.6
  • 22
    • 0029887105 scopus 로고    scopus 로고
    • Location, exposure, and conservation of neutralizing and nonneutralizing epitopes on human immunodeficiency virus type 2 SU glycoprotein
    • McKnight A, Shotton C, Cordell J, Jones I, Simmons G, Clapham PR. Location, exposure, and conservation of neutralizing and nonneutralizing epitopes on human immunodeficiency virus type 2 SU glycoprotein. J Virol 1996;70:4598-4606. (Pubitemid 26187456)
    • (1996) Journal of Virology , vol.70 , Issue.7 , pp. 4598-4606
    • McKnight, A.1    Shotton, C.2    Cordell, J.3    Jones, I.4    Simmons, G.5    Clapham, P.R.6
  • 23
    • 78049524372 scopus 로고    scopus 로고
    • Potent and broadly reactive HIV-2 neutralizing antibodies elicited by a vaccinia virus vector prime-C2V3C3 polypeptide boost immunization strategy
    • Marcelino JM, Borrego P, Rocha C, Barroso H, Quintas A, Novo C, Taveira N. Potent and broadly reactive HIV-2 neutralizing antibodies elicited by a vaccinia virus vector prime-C2V3C3 polypeptide boost immunization strategy. J Virol 2010;84:12429-12436.
    • (2010) J Virol , vol.84 , pp. 12429-12436
    • Marcelino, J.M.1    Borrego, P.2    Rocha, C.3    Barroso, H.4    Quintas, A.5    Novo, C.6    Taveira, N.7
  • 28
    • 60349089294 scopus 로고    scopus 로고
    • Measuring HIV neutralization in a luciferase reporter gene assay
    • Montefiori DC. Measuring HIV neutralization in a luciferase reporter gene assay. Methods Mol Biol 2009;485:395-405.
    • (2009) Methods Mol Biol , vol.485 , pp. 395-405
    • Montefiori, D.C.1
  • 30
    • 32144432437 scopus 로고    scopus 로고
    • The SWISS-MODEL workspace: A web-based environment for protein structure homology modelling
    • DOI 10.1093/bioinformatics/bti770
    • Arnold K, Bordoli L, Kopp J, Schwede T. The SWISS-MODEL workspace: a web-based environment for protein structure homology modelling. Bioinformatics 2006;22:195-201. (Pubitemid 43205406)
    • (2006) Bioinformatics , vol.22 , Issue.2 , pp. 195-201
    • Arnold, K.1    Bordoli, L.2    Kopp, J.3    Schwede, T.4
  • 33
    • 13844302894 scopus 로고    scopus 로고
    • Structure of an unliganded simian immunodeficiency virus gp120 core
    • DOI 10.1038/nature03327
    • Chen B, Vogan EM, Gong H, Skehel JJ, Wiley DC, Harrison SC. Structure of an unliganded simian immunodeficiency virus gp120 core. Nature 2005;433:834-841. (Pubitemid 40314887)
    • (2005) Nature , vol.433 , Issue.7028 , pp. 834-841
    • Chen, B.1    Vogan, E.M.2    Gong, H.3    Skehel, J.J.4    Wiley, D.C.5    Harrison, S.C.6
  • 34
    • 0020997912 scopus 로고
    • Dictionary of protein secondary structure: Pattern recognition of hydrogen-bonded and geometrical features
    • Kabsch W, Sander C. Dictionary of protein secondary structure: pattern recognition of hydrogen-bonded and geometrical features. Biopolymers 1983;22:2577-2637.
    • (1983) Biopolymers , vol.22 , pp. 2577-2637
    • Kabsch, W.1    Sander, C.2
  • 36
    • 56549116048 scopus 로고    scopus 로고
    • Envelope-specific antibody response in HIV-2 infection: C2V3C3-specific IgG response is associated with disease progression
    • Marcelino JM, Nilsson C, Barroso H, Gomes P, Borrego P, Maltez F, et al. Envelope-specific antibody response in HIV-2 infection: C2V3C3-specific IgG response is associated with disease progression. AIDS 2008;22:2257-2265.
    • (2008) AIDS , vol.22 , pp. 2257-2265
    • Marcelino, J.M.1    Nilsson, C.2    Barroso, H.3    Gomes, P.4    Borrego, P.5    Maltez, F.6
  • 37
    • 53549101005 scopus 로고    scopus 로고
    • The role of the humoral immune response in the molecular evolution of the envelope C2, V3 and C3 regions in chronically HIV-2 infected patients
    • Borrego P, Marcelino JM, Rocha C, Doroana M, Antunes F, Maltez F, et al. The role of the humoral immune response in the molecular evolution of the envelope C2, V3 and C3 regions in chronically HIV-2 infected patients. Retrovirology 2008;5:78.
    • (2008) Retrovirology , vol.5 , pp. 78
    • Borrego, P.1    Marcelino, J.M.2    Rocha, C.3    Doroana, M.4    Antunes, F.5    Maltez, F.6
  • 38
    • 13744257143 scopus 로고    scopus 로고
    • CCR5, GPR15, and CXCR6 are major coreceptors of human immunodeficiency virus type 2 variants isolated from individuals with and without plasma viremia
    • DOI 10.1128/JVI.79.3.1686-1700.2005
    • Blaak H, Boers PH, Gruters RA, Schuitemaker H, van der Ende ME, Osterhaus AD. CCR5, GPR15, and CXCR6 are major coreceptors of human immunodeficiency virus type 2 variants isolated from individuals with and without plasma viremia. J Virol 2005;79:1686-1700. (Pubitemid 40459115)
    • (2005) Journal of Virology , vol.79 , Issue.3 , pp. 1686-1700
    • Blaak, H.1    Boers, P.H.M.2    Gruters, R.A.3    Schuitemaker, H.4    Van Der Ende, M.E.5    Osterhaus, A.D.M.E.6
  • 39
    • 73949084963 scopus 로고    scopus 로고
    • Breadth of human immunodeficiency virusspecific neutralizing activity in sera: Clustering analysis and association with clinical variables
    • Doria-Rose NA, Klein RM, Daniels MG, O'Dell S, Nason M, Lapedes A, et al. Breadth of human immunodeficiency virusspecific neutralizing activity in sera: clustering analysis and association with clinical variables. J Virol 2010;84:1631-1636.
    • (2010) J Virol , vol.84 , pp. 1631-1636
    • Doria-Rose, N.A.1    Klein, R.M.2    Daniels, M.G.3    O'Dell, S.4    Nason, M.5    Lapedes, A.6
  • 41
  • 42
    • 72949118295 scopus 로고    scopus 로고
    • Prevalence of cross-reactive HIV-1-neutralizing activity in HIV-1-infected patients with rapid or slow disease progression
    • van Gils MJ, Euler Z, Schweighardt B, Wrin T, Schuitemaker H. Prevalence of cross-reactive HIV-1-neutralizing activity in HIV-1-infected patients with rapid or slow disease progression. AIDS 2009;23:2405-2414.
    • (2009) AIDS , vol.23 , pp. 2405-2414
    • Van Gils, M.J.1    Euler, Z.2    Schweighardt, B.3    Wrin, T.4    Schuitemaker, H.5
  • 43
    • 73149116824 scopus 로고    scopus 로고
    • High prevalence of neutralizing activity against multiple unrelated human immunodeficiency virus type 1 (HIV-1) subtype B variants in sera from HIV-1 subtype B-infected individuals: Evidence for subtype-specific rather than strain-specific neutralizing activity
    • van Gils MJ, Edo-Matas D, Schweighardt B, Wrin T, Schuitemaker H. High prevalence of neutralizing activity against multiple unrelated human immunodeficiency virus type 1 (HIV-1) subtype B variants in sera from HIV-1 subtype B-infected individuals: evidence for subtype-specific rather than strain-specific neutralizing activity. J Gen Virol 2010;91:250-258.
    • (2010) J Gen Virol , vol.91 , pp. 250-258
    • Van Gils, M.J.1    Edo-Matas, D.2    Schweighardt, B.3    Wrin, T.4    Schuitemaker, H.5
  • 44
    • 80054967903 scopus 로고    scopus 로고
    • Memory and naive-like regulatory CD4R T cells expand during HIV-2 infection in direct association with CD4R T-cell depletion irrespectively of viremia
    • Foxall RB, Albuquerque AS, Soares RS, Baptista AP, Cavaleiro R, Tendeiro R, et al. Memory and naive-like regulatory CD4R T cells expand during HIV-2 infection in direct association with CD4R T-cell depletion irrespectively of viremia. AIDS 2011;25:1961-1970.
    • (2011) AIDS , vol.25 , pp. 1961-1970
    • Foxall, R.B.1    Albuquerque, A.S.2    Soares, R.S.3    Baptista, A.P.4    Cavaleiro, R.5    Tendeiro, R.6
  • 49
    • 49149118421 scopus 로고    scopus 로고
    • Autologous neutralizing humoral immunity and evolution of the viral envelope in the course of subtype B human immunodeficiency virus type 1 infection
    • Bunnik EM, Pisas L, van Nuenen AC, Schuitemaker H. Autologous neutralizing humoral immunity and evolution of the viral envelope in the course of subtype B human immunodeficiency virus type 1 infection. J Virol 2008;82:7932-7941.
    • (2008) J Virol , vol.82 , pp. 7932-7941
    • Bunnik, E.M.1    Pisas, L.2    Van Nuenen, A.C.3    Schuitemaker, H.4
  • 50
    • 75849146082 scopus 로고    scopus 로고
    • Temporal analysis of HIV envelope sequence evolution and antibody escape in a subtype A-infected individual with a broad neutralizing antibody response
    • Bosch KA, Rainwater S, Jaoko W, Overbaugh J. Temporal analysis of HIV envelope sequence evolution and antibody escape in a subtype A-infected individual with a broad neutralizing antibody response. Virology 2010;398:115-124.
    • (2010) Virology , vol.398 , pp. 115-124
    • Bosch, K.A.1    Rainwater, S.2    Jaoko, W.3    Overbaugh, J.4
  • 51
    • 0031951649 scopus 로고    scopus 로고
    • Evidence that antibody-mediated neutralization of human immunodeficiency virus type 1 by sera from infected individuals is independent of coreceptor usage
    • Montefiori DC, Collman RG, Fouts TR, Zhou JY, Bilska M, Hoxie JA, et al. Evidence that antibody-mediated neutralization of human immunodeficiency virus type 1 by sera from infected individuals is independent of coreceptor usage. J Virol 1998;72:1886-1893. (Pubitemid 28100740)
    • (1998) Journal of Virology , vol.72 , Issue.3 , pp. 1886-1893
    • Montefiori, D.C.1    Collman, R.G.2    Fouts, T.R.3    Zhou, J.Y.4    Bilska, M.5    Hoxie, J.A.6    Moore, J.P.7    Bolognesi, D.P.8
  • 52
    • 52449116186 scopus 로고    scopus 로고
    • Net positive charge of HIV-1 CRF01-AE V3 sequence regulates viral sensitivity to humoral immunity
    • Naganawa S, Yokoyama M, Shiino T, Suzuki T, Ishigatsubo Y, Ueda A, et al. Net positive charge of HIV-1 CRF01-AE V3 sequence regulates viral sensitivity to humoral immunity. PLoS One 2008;3:e3206.
    • (2008) PLoS One , vol.3
    • Naganawa, S.1    Yokoyama, M.2    Shiino, T.3    Suzuki, T.4    Ishigatsubo, Y.5    Ueda, A.6
  • 53
    • 18744368767 scopus 로고    scopus 로고
    • Cryptic nature of a conserved, CD4-inducible V3 loop neutralization epitope in the native envelope glycoprotein oligomer of CCR5-restricted, but not CXCR4-using, primary human immunodeficiency virus type 1 strains
    • DOI 10.1128/JVI.79.11.6957-6968.2005
    • Lusso P, Earl PL, Sironi F, Santoro F, Ripamonti C, Scarlatti G, et al. Cryptic nature of a conserved, CD4-inducible V3 loop neutralization epitope in the native envelope glycoprotein oligomer of CCR5-restricted, but not CXCR4-using, primary human immunodeficiency virus type 1 strains. J Virol 2005;79:6957-6968. (Pubitemid 40677327)
    • (2005) Journal of Virology , vol.79 , Issue.11 , pp. 6957-6968
    • Lusso, P.1    Earl, P.L.2    Sironi, F.3    Santoro, F.4    Ripamonti, C.5    Scarlatti, G.6    Longhi, R.7    Berger, E.A.8    Burastero, S.E.9
  • 56
    • 0038107685 scopus 로고    scopus 로고
    • Human immunodeficiency virus type 1 primary isolate neutralization resistance is associated with the syncytium-inducing phenotype and lower CD4 cell counts in subtype CRF01-AE-infected patients
    • DOI 10.1128/JVI.77.15.8570-8576.2003
    • Polonis VR, de Souza MS, Darden JM, Chantakulkij S, Chuenchitra T, Nitayaphan S, et al. Human immunodeficiency virus type 1 primary isolate neutralization resistance is associated with the syncytium-inducing phenotype and lower CD4 cell counts in subtype CRF01-AE-infected patients. J Virol 2003;77:8570-8576. (Pubitemid 36871486)
    • (2003) Journal of Virology , vol.77 , Issue.15 , pp. 8570-8576
    • Polonis, V.R.1    De Souza, M.S.2    Darden, J.M.3    Chantakulkij, S.4    Chuenchitra, T.5    Nitayaphan, S.6    Brown, A.E.7    Robb, M.L.8    Birx, D.L.9
  • 57
    • 33747889108 scopus 로고    scopus 로고
    • In vitro replication capacity of HIV-2 variants from long-term aviremic individuals
    • DOI 10.1016/j.virol.2006.05.029, PII S0042682206003606
    • Blaak H, van der Ende ME, Boers PH, Schuitemaker H, Osterhaus AD. In vitro replication capacity of HIV-2 variants from long-term aviremic individuals. Virology 2006;353:144-154. (Pubitemid 44291787)
    • (2006) Virology , vol.353 , Issue.1 , pp. 144-154
    • Blaak, H.1    Van Der Ende, M.E.2    Boers, P.H.M.3    Schuitemaker, H.4    Osterhaus, A.D.M.E.5
  • 58
    • 84555189229 scopus 로고    scopus 로고
    • Molecular determinants of HIV-2 R5-X4 tropism in the V3 loop: Development of a new genotypic tool
    • Visseaux B, Hurtado-Nedelec M, Charpentier C, Collin G, Storto A, Matheron S, et al. Molecular determinants of HIV-2 R5-X4 tropism in the V3 loop: development of a new genotypic tool. J Infect Dis 2011;205:111-120.
    • (2011) J Infect Dis , vol.205 , pp. 111-120
    • Visseaux, B.1    Hurtado-Nedelec, M.2    Charpentier, C.3    Collin, G.4    Storto, A.5    Matheron, S.6
  • 59
    • 0037317611 scopus 로고    scopus 로고
    • Alternative conformations of HIV-1 V3 loops mimic β hairpins in chemokines, suggesting a mechanism for coreceptor selectivity
    • DOI 10.1016/S0969-2126(03)00011-X, PII S096921260300011X
    • Sharon M, Kessler N, Levy R, Zolla-Pazner S, Gorlach M, Anglister J. Alternative conformations of HIV-1 V3 loops mimic beta hairpins in chemokines, suggesting a mechanism for coreceptor selectivity. Structure 2003;11:225-236. (Pubitemid 36183646)
    • (2003) Structure , vol.11 , Issue.2 , pp. 225-236
    • Sharon, M.1    Kessler, N.2    Levy, R.3    Zolla-Pazner, S.4    Gorlach, M.5    Anglister, J.6
  • 60
    • 1242351232 scopus 로고    scopus 로고
    • Structural Rationale for the Broad Neutralization of HIV-1 by Human Monoclonal Antibody 447-52D
    • DOI 10.1016/S0969-2126(04)00005-X
    • Stanfield RL, Gorny MK, Williams C, Zolla-Pazner S, Wilson IA. Structural rationale for the broad neutralization of HIV-1 by human monoclonal antibody 447-52D. Structure 2004;12:193-204. (Pubitemid 38224543)
    • (2004) Structure , vol.12 , Issue.2 , pp. 193-204
    • Stanfield, R.L.1    Gorny, M.K.2    Williams, C.3    Zolla-Pazner, S.4    Wilson, I.A.5


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