Somatic hypermutation of immunoglobulin genes: lessons from proliferating cell nuclear antigenK164R mutant mice

Proliferating cell nuclear antigen (PCNA) encircles DNA as a ring-shaped homotrimer and, by tethering DNA polymerases to their template, PCNA serves as a critical replication factor. In contrast to high-fidelity DNA polymerases, the activation of low-fidelity translesion synthesis (TLS) DNA polymera...

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Published in:Philosophical transactions of the Royal Society of London. Series B. Biological sciences Vol. 364; no. 1517; p. 621
Main Authors: Langerak, Petra, Krijger, Peter H L, Heideman, Marinus R, van den Berk, Paul C M, Jacobs, Heinz
Format: Journal Article
Language:English
Published: England 12.03.2009
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ISSN:1471-2970, 1471-2970
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Abstract Proliferating cell nuclear antigen (PCNA) encircles DNA as a ring-shaped homotrimer and, by tethering DNA polymerases to their template, PCNA serves as a critical replication factor. In contrast to high-fidelity DNA polymerases, the activation of low-fidelity translesion synthesis (TLS) DNA polymerases seems to require damage-inducible monoubiquitylation (Ub) of PCNA at lysine residue 164 (PCNA-Ub). TLS polymerases can tolerate DNA damage, i.e. they can replicate across DNA lesions. The lack of proofreading activity, however, renders TLS highly mutagenic. The advantage is that B cells use mutagenic TLS to introduce somatic mutations in immunoglobulin (Ig) genes to generate high-affinity antibodies. Given the critical role of PCNA-Ub in activating TLS and the role of TLS in establishing somatic mutations in immunoglobulin genes, we analysed the mutation spectrum of somatically mutated immunoglobulin genes in B cells from PCNAK164R knock-in mice. A 10-fold reduction in A/T mutations is associated with a compensatory increase in G/C mutations-a phenotype similar to Poleta and mismatch repair-deficient B cells. Mismatch recognition, PCNA-Ub and Poleta probably act within one pathway to establish the majority of mutations at template A/T. Equally relevant, the G/C mutator(s) seems largely independent of PCNAK(164) modification.
AbstractList Proliferating cell nuclear antigen (PCNA) encircles DNA as a ring-shaped homotrimer and, by tethering DNA polymerases to their template, PCNA serves as a critical replication factor. In contrast to high-fidelity DNA polymerases, the activation of low-fidelity translesion synthesis (TLS) DNA polymerases seems to require damage-inducible monoubiquitylation (Ub) of PCNA at lysine residue 164 (PCNA-Ub). TLS polymerases can tolerate DNA damage, i.e. they can replicate across DNA lesions. The lack of proofreading activity, however, renders TLS highly mutagenic. The advantage is that B cells use mutagenic TLS to introduce somatic mutations in immunoglobulin (Ig) genes to generate high-affinity antibodies. Given the critical role of PCNA-Ub in activating TLS and the role of TLS in establishing somatic mutations in immunoglobulin genes, we analysed the mutation spectrum of somatically mutated immunoglobulin genes in B cells from PCNAK164R knock-in mice. A 10-fold reduction in A/T mutations is associated with a compensatory increase in G/C mutations-a phenotype similar to Poleta and mismatch repair-deficient B cells. Mismatch recognition, PCNA-Ub and Poleta probably act within one pathway to establish the majority of mutations at template A/T. Equally relevant, the G/C mutator(s) seems largely independent of PCNAK(164) modification.Proliferating cell nuclear antigen (PCNA) encircles DNA as a ring-shaped homotrimer and, by tethering DNA polymerases to their template, PCNA serves as a critical replication factor. In contrast to high-fidelity DNA polymerases, the activation of low-fidelity translesion synthesis (TLS) DNA polymerases seems to require damage-inducible monoubiquitylation (Ub) of PCNA at lysine residue 164 (PCNA-Ub). TLS polymerases can tolerate DNA damage, i.e. they can replicate across DNA lesions. The lack of proofreading activity, however, renders TLS highly mutagenic. The advantage is that B cells use mutagenic TLS to introduce somatic mutations in immunoglobulin (Ig) genes to generate high-affinity antibodies. Given the critical role of PCNA-Ub in activating TLS and the role of TLS in establishing somatic mutations in immunoglobulin genes, we analysed the mutation spectrum of somatically mutated immunoglobulin genes in B cells from PCNAK164R knock-in mice. A 10-fold reduction in A/T mutations is associated with a compensatory increase in G/C mutations-a phenotype similar to Poleta and mismatch repair-deficient B cells. Mismatch recognition, PCNA-Ub and Poleta probably act within one pathway to establish the majority of mutations at template A/T. Equally relevant, the G/C mutator(s) seems largely independent of PCNAK(164) modification.
Proliferating cell nuclear antigen (PCNA) encircles DNA as a ring-shaped homotrimer and, by tethering DNA polymerases to their template, PCNA serves as a critical replication factor. In contrast to high-fidelity DNA polymerases, the activation of low-fidelity translesion synthesis (TLS) DNA polymerases seems to require damage-inducible monoubiquitylation (Ub) of PCNA at lysine residue 164 (PCNA-Ub). TLS polymerases can tolerate DNA damage, i.e. they can replicate across DNA lesions. The lack of proofreading activity, however, renders TLS highly mutagenic. The advantage is that B cells use mutagenic TLS to introduce somatic mutations in immunoglobulin (Ig) genes to generate high-affinity antibodies. Given the critical role of PCNA-Ub in activating TLS and the role of TLS in establishing somatic mutations in immunoglobulin genes, we analysed the mutation spectrum of somatically mutated immunoglobulin genes in B cells from PCNAK164R knock-in mice. A 10-fold reduction in A/T mutations is associated with a compensatory increase in G/C mutations-a phenotype similar to Poleta and mismatch repair-deficient B cells. Mismatch recognition, PCNA-Ub and Poleta probably act within one pathway to establish the majority of mutations at template A/T. Equally relevant, the G/C mutator(s) seems largely independent of PCNAK(164) modification.
Author Krijger, Peter H L
Heideman, Marinus R
van den Berk, Paul C M
Jacobs, Heinz
Langerak, Petra
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References 16247017 - Proc Natl Acad Sci U S A. 2005 Nov 1;102(44):15954-9
12415303 - Nat Rev Mol Cell Biol. 2002 Nov;3(11):859-70
17251197 - Nucleic Acids Res. 2007;35(3):881-9
10662804 - J Exp Med. 2000 Feb 7;191(3):579-84
16357261 - Science. 2005 Dec 16;310(5755):1821-4
16551259 - Annu Rev Immunol. 2006;24:541-70
9287349 - J Biol Chem. 1997 Sep 12;272(37):23360-5
16340005 - Nucleic Acids Res. 2005;33(22):e188
10982826 - Mol Cell Biol. 2000 Oct;20(19):7099-108
7915006 - Mol Cell Biol. 1994 Sep;14(9):6187-97
10373455 - J Biol Chem. 1999 Jun 25;274(26):18470-6
11316789 - Genes Dev. 2001 Apr 15;15(8):945-54
8031302 - Bioessays. 1994 Apr;16(4):253-8
14643429 - Mutat Res. 2003 Nov 27;532(1-2):59-73
4947375 - Mutat Res. 1971 Dec;13(4):319-26
8657279 - Nature. 1996 Jun 27;381(6585):751-8
11160925 - Nucleic Acids Res. 2001 Feb 15;29(4):928-35
10835623 - Nat Genet. 2000 Jun;25(2):139-40
7624801 - Science. 1995 Aug 4;269(5224):699-702
9780000 - Oncogene. 1998 Aug 20;17(7):835-43
10556591 - Mutat Res. 1999 Oct 22;435(2):111-9
11884624 - Mol Cell Biol. 2002 Apr;22(7):2419-26
17515930 - Nat Cell Biol. 2007 Jun;9(6):691-7
15229473 - Nat Rev Immunol. 2004 Jul;4(7):541-52
7892206 - Proc Natl Acad Sci U S A. 1995 Mar 14;92(6):1950-4
11007474 - Cell. 2000 Sep 1;102(5):553-63
11371365 - Immunity. 2001 May;14(5):643-53
16857592 - Mol Cell. 2006 Jul 21;23(2):265-71
9697843 - Immunity. 1998 Jul;9(1):135-41
11418667 - J Immunol. 2001 Jul 1;167(1):327-35
1559696 - Genomics. 1992 Mar;12(3):447-53
14578343 - J Biol Chem. 2003 Dec 26;278(52):52914-8
11484057 - Nature. 2001 Aug 2;412(6846):553-7
8274853 - Curr Opin Genet Dev. 1993 Oct;3(5):719-25
10908344 - Nucleic Acids Res. 2000 Jul 15;28(14):2847-54
12925679 - J Exp Med. 2003 Aug 18;198(4):635-43
15952890 - Annu Rev Biochem. 2005;74:317-53
15653636 - Nucleic Acids Res. 2005;33(1):356-65
15931174 - Nature. 2005 Jul 21;436(7049):428-33
12040171 - Science. 2002 May 31;296(5573):1627-30
16341080 - Nat Rev Mol Cell Biol. 2005 Dec;6(12):943-53
14576432 - Science. 2003 Oct 24;302(5645):636-9
11007475 - Cell. 2000 Sep 1;102(5):565-75
16169844 - J Biol Chem. 2005 Nov 18;280(46):38657-65
2500405 - Int Rev Cytol. 1989;114:125-79
15196456 - Curr Opin Genet Dev. 2004 Apr;14(2):113-9
9631646 - Bioessays. 1998 Mar;20(3):195-9
10518552 - Proc Natl Acad Sci U S A. 1999 Oct 12;96(21):11922-7
11907025 - J Biol Chem. 2002 May 3;277(18):15233-6
11994423 - J Exp Med. 2002 May 6;195(9):1187-92
2660260 - Science. 1989 Jun 16;244(4910):1288-92
16982685 - Mol Cell Biol. 2006 Dec;26(23):8892-900
9535864 - J Biol Chem. 1998 Apr 10;273(15):8842-8
17664295 - J Exp Med. 2007 Aug 6;204(8):1989-98
12401169 - Curr Biol. 2002 Oct 15;12(20):1748-55
17328676 - Annu Rev Biochem. 2007;76:1-22
16789829 - PLoS Genet. 2006 Jun;2(6):e98
9214649 - EMBO J. 1997 Jun 2;16(11):3341-8
11376341 - Nat Immunol. 2001 Jun;2(6):537-41
16489919 - Biochemistry (Mosc). 2006 Feb;71(2):155-9
16611731 - Proc Natl Acad Sci U S A. 2006 Apr 25;103(17):6477-82
15169909 - Mol Cell Biol. 2004 Jun;24(12):5485-95
16990054 - DNA Repair (Amst). 2006 Dec 9;5(12):1475-88
8751446 - Nature. 1996 Aug 22;382(6593):729-31
11809771 - J Biol Chem. 2002 Apr 12;277(15):13302-11
15496986 - EMBO J. 2004 Nov 10;23(22):4484-94
1651502 - Proc Natl Acad Sci U S A. 1991 Aug 15;88(16):7351-5
9607915 - J Exp Med. 1998 Jun 1;187(11):1735-43
12226657 - Nature. 2002 Sep 12;419(6903):135-41
15824086 - J Exp Med. 2005 Apr 18;201(8):1191-6
15149598 - Mol Cell. 2004 May 21;14(4):491-500
18485869 - Cell. 2008 May 16;133(4):601-11
10398605 - Science. 1999 Jul 9;285(5425):263-5
17567544 - DNA Repair (Amst). 2007 Oct 1;6(10):1463-70
1549115 - Mol Cell Biol. 1992 Apr;12(4):1605-12
15710654 - J Exp Med. 2005 Feb 21;201(4):637-45
16476771 - J Exp Med. 2006 Feb 20;203(2):319-23
References_xml – reference: 10398605 - Science. 1999 Jul 9;285(5425):263-5
– reference: 10373455 - J Biol Chem. 1999 Jun 25;274(26):18470-6
– reference: 16357261 - Science. 2005 Dec 16;310(5755):1821-4
– reference: 11884624 - Mol Cell Biol. 2002 Apr;22(7):2419-26
– reference: 9780000 - Oncogene. 1998 Aug 20;17(7):835-43
– reference: 7915006 - Mol Cell Biol. 1994 Sep;14(9):6187-97
– reference: 9535864 - J Biol Chem. 1998 Apr 10;273(15):8842-8
– reference: 10518552 - Proc Natl Acad Sci U S A. 1999 Oct 12;96(21):11922-7
– reference: 2500405 - Int Rev Cytol. 1989;114:125-79
– reference: 15149598 - Mol Cell. 2004 May 21;14(4):491-500
– reference: 11007475 - Cell. 2000 Sep 1;102(5):565-75
– reference: 1549115 - Mol Cell Biol. 1992 Apr;12(4):1605-12
– reference: 16857592 - Mol Cell. 2006 Jul 21;23(2):265-71
– reference: 12415303 - Nat Rev Mol Cell Biol. 2002 Nov;3(11):859-70
– reference: 16341080 - Nat Rev Mol Cell Biol. 2005 Dec;6(12):943-53
– reference: 16340005 - Nucleic Acids Res. 2005;33(22):e188
– reference: 14643429 - Mutat Res. 2003 Nov 27;532(1-2):59-73
– reference: 12226657 - Nature. 2002 Sep 12;419(6903):135-41
– reference: 1651502 - Proc Natl Acad Sci U S A. 1991 Aug 15;88(16):7351-5
– reference: 10835623 - Nat Genet. 2000 Jun;25(2):139-40
– reference: 10908344 - Nucleic Acids Res. 2000 Jul 15;28(14):2847-54
– reference: 16789829 - PLoS Genet. 2006 Jun;2(6):e98
– reference: 10556591 - Mutat Res. 1999 Oct 22;435(2):111-9
– reference: 8751446 - Nature. 1996 Aug 22;382(6593):729-31
– reference: 9631646 - Bioessays. 1998 Mar;20(3):195-9
– reference: 11809771 - J Biol Chem. 2002 Apr 12;277(15):13302-11
– reference: 15952890 - Annu Rev Biochem. 2005;74:317-53
– reference: 15496986 - EMBO J. 2004 Nov 10;23(22):4484-94
– reference: 12401169 - Curr Biol. 2002 Oct 15;12(20):1748-55
– reference: 7624801 - Science. 1995 Aug 4;269(5224):699-702
– reference: 16982685 - Mol Cell Biol. 2006 Dec;26(23):8892-900
– reference: 15169909 - Mol Cell Biol. 2004 Jun;24(12):5485-95
– reference: 15229473 - Nat Rev Immunol. 2004 Jul;4(7):541-52
– reference: 9287349 - J Biol Chem. 1997 Sep 12;272(37):23360-5
– reference: 10982826 - Mol Cell Biol. 2000 Oct;20(19):7099-108
– reference: 17664295 - J Exp Med. 2007 Aug 6;204(8):1989-98
– reference: 11316789 - Genes Dev. 2001 Apr 15;15(8):945-54
– reference: 1559696 - Genomics. 1992 Mar;12(3):447-53
– reference: 15710654 - J Exp Med. 2005 Feb 21;201(4):637-45
– reference: 16990054 - DNA Repair (Amst). 2006 Dec 9;5(12):1475-88
– reference: 11160925 - Nucleic Acids Res. 2001 Feb 15;29(4):928-35
– reference: 10662804 - J Exp Med. 2000 Feb 7;191(3):579-84
– reference: 8657279 - Nature. 1996 Jun 27;381(6585):751-8
– reference: 17515930 - Nat Cell Biol. 2007 Jun;9(6):691-7
– reference: 17251197 - Nucleic Acids Res. 2007;35(3):881-9
– reference: 11371365 - Immunity. 2001 May;14(5):643-53
– reference: 16247017 - Proc Natl Acad Sci U S A. 2005 Nov 1;102(44):15954-9
– reference: 11418667 - J Immunol. 2001 Jul 1;167(1):327-35
– reference: 16476771 - J Exp Med. 2006 Feb 20;203(2):319-23
– reference: 11007474 - Cell. 2000 Sep 1;102(5):553-63
– reference: 12040171 - Science. 2002 May 31;296(5573):1627-30
– reference: 8031302 - Bioessays. 1994 Apr;16(4):253-8
– reference: 16489919 - Biochemistry (Mosc). 2006 Feb;71(2):155-9
– reference: 17567544 - DNA Repair (Amst). 2007 Oct 1;6(10):1463-70
– reference: 2660260 - Science. 1989 Jun 16;244(4910):1288-92
– reference: 9607915 - J Exp Med. 1998 Jun 1;187(11):1735-43
– reference: 11484057 - Nature. 2001 Aug 2;412(6846):553-7
– reference: 11994423 - J Exp Med. 2002 May 6;195(9):1187-92
– reference: 14576432 - Science. 2003 Oct 24;302(5645):636-9
– reference: 15653636 - Nucleic Acids Res. 2005;33(1):356-65
– reference: 16169844 - J Biol Chem. 2005 Nov 18;280(46):38657-65
– reference: 15196456 - Curr Opin Genet Dev. 2004 Apr;14(2):113-9
– reference: 7892206 - Proc Natl Acad Sci U S A. 1995 Mar 14;92(6):1950-4
– reference: 8274853 - Curr Opin Genet Dev. 1993 Oct;3(5):719-25
– reference: 11376341 - Nat Immunol. 2001 Jun;2(6):537-41
– reference: 12925679 - J Exp Med. 2003 Aug 18;198(4):635-43
– reference: 11907025 - J Biol Chem. 2002 May 3;277(18):15233-6
– reference: 4947375 - Mutat Res. 1971 Dec;13(4):319-26
– reference: 16551259 - Annu Rev Immunol. 2006;24:541-70
– reference: 15824086 - J Exp Med. 2005 Apr 18;201(8):1191-6
– reference: 9697843 - Immunity. 1998 Jul;9(1):135-41
– reference: 17328676 - Annu Rev Biochem. 2007;76:1-22
– reference: 18485869 - Cell. 2008 May 16;133(4):601-11
– reference: 15931174 - Nature. 2005 Jul 21;436(7049):428-33
– reference: 9214649 - EMBO J. 1997 Jun 2;16(11):3341-8
– reference: 16611731 - Proc Natl Acad Sci U S A. 2006 Apr 25;103(17):6477-82
– reference: 14578343 - J Biol Chem. 2003 Dec 26;278(52):52914-8
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Snippet Proliferating cell nuclear antigen (PCNA) encircles DNA as a ring-shaped homotrimer and, by tethering DNA polymerases to their template, PCNA serves as a...
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SubjectTerms Animals
DNA Mutational Analysis
DNA Repair
DNA-Directed DNA Polymerase - metabolism
Mice
Mice, Mutant Strains
Models, Genetic
Nucleotidyltransferases - metabolism
Proliferating Cell Nuclear Antigen - genetics
Proliferating Cell Nuclear Antigen - metabolism
Somatic Hypermutation, Immunoglobulin - genetics
Ubiquitination
Title Somatic hypermutation of immunoglobulin genes: lessons from proliferating cell nuclear antigenK164R mutant mice
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