2010 Fiscal Year Final Research Report
Analysis of splicing variant of p53-inducible phosphatase PPM1D on carcinogenesis
Project/Area Number |
20770095
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Functional biochemistry
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Research Institution | Hokkaido University |
Principal Investigator |
CHUMAN Yoshiro Hokkaido University, 大学院・理学研究院, 助教 (40372263)
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Project Period (FY) |
2008 – 2010
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Keywords | ホスファターゼ / スプライシング |
Research Abstract |
PPM1D is a PPM1 type protein phosphatase and is induced in response to DNA damage. In our current study, we identify and characterize an alternative splicing variant (denoted PPM1D430) of human PPM1D at both the mRNA and protein level. PPM1D430 comprises the common 420 residues of the known PPM1D protein (PPM1D605) and contains a stretch of PPM1D430-specific 10 amino acids. Semi-quantitative RT-PCR analysis revealed that PPM1D430 mRNA is also induced in response to the genotoxic stress in a p53-dependent manner. In vitro phosphatase analysis and PPM1D430-specific RNA interference analysis further indicated that PPM1D430 can dephosphorylate Ser15 of human p53 both in vitro and in vivo. On the other hand, expression profiling of this gene by RT-PCR analysis of a human tissue cDNA panel revealed that PPM1D430 is expressed exclusively in testes and in leukocytes whereas PPM1D605 is ubiquitous. In addition, PPM1D430 shows a different subcellular localization pattern and protein stability when compared with PPM1D605 under some conditions. Our current findings thus suggest that PPM1D430 may exert specific functions in immune response and/or spermatogenesis.
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[Journal Article] Phosphatase assay for multi-phosphorylated substrates using phosphatase specific-motif antibody2011
Author(s)
Chuman, Y., Iizuka, K., Honda, T., Onoue, H., Shimohigashi, Y., Sakaguchi, K.
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Journal Title
Peer Reviewed
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[Journal Article] sFRP-1 binds via its netrin-related motif to the N-module of thrombospondin-1 and blocks thrombospondin-1 stimulation of MDA-MB-231 breast carcinoma cell adhesion and migration.2011
Author(s)
Martin-Manso, G., Calzada, M.J., Chuman, Y., Sipes, J.M., Xavier, C.P., Wolf, V., Kuznetsova, S.A., Rubin, J.S., Roberts, D.D.
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Journal Title
Arch.Biochem.Biophys. 509(2)
Pages: 147-156
Peer Reviewed
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[Journal Article] Probing phenylalanine environments in oligomeric structures with pentafluorophenylalanine and cyclohexylalanine.2011
Author(s)
Nomura, T., Kamada, R., Ito, I., Sakamoto, K., Chuman, Y., Ishimori, K., Shimohigashi, Y., Sakaguchi, K.
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Journal Title
Biopolymers 95(6)
Pages: 410-419
Peer Reviewed
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[Journal Article] Enhancement of transcriptional activity of mutant p53 tumor suppressor protein through stabilization of tetramer formation by calix[6]arene derivatives2010
Author(s)
Kamada, R., Yoshino, W., Nomura, T., Chuman, Y., Imagawa, T., Suzuki, T., Sakaguchi, K.
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Journal Title
Bioorg.Med.Chem Lett. 20(15)
Pages: 4412-4415
Peer Reviewed
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[Journal Article] Drastic Effects on Fibril Formation of Amyloid-beta Peptides by the Addition of Amino Acid Residue Units to the Termini2010
Author(s)
Asanomi, Y., Kobayashi, Y, Sakai, H., Masuda, T., Chen, X., Chuman, Y., Uosaki, K., Sakaguchi, K.
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Journal Title
Protein Pept.Lett. 17(4)
Pages: 458-463
Peer Reviewed
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[Journal Article] Fluoroalkene Modification of Mercaptoacetamide-based Histone Deacetylase Inhibitors2010
Author(s)
Osada, S., Sano, S., Ueyama, M., Chuman, Y., Kodama, H., Sakaguchi, K.
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Journal Title
Bioorg.Med.Chem. 18(2)
Pages: 605-611
Peer Reviewed
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[Journal Article] Biomineralization Activity of Multivalent minTBP-1 Peptide Mediated by p53 Tetramerization Domain.2010
Author(s)
Sakaguchi, T., Kamada, R., Nomura, T., Chuman, Y., Imagawa, T., Sakaguchi, K.
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Journal Title
Peptide Science 2009
Pages: 411-412
Peer Reviewed
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[Journal Article] PPM1D430, a Novel Alternative Splicing Variant of the Human PPM1D, can Dephosphorylate p53 and Exhibits Specific Tissue Expression2009
Author(s)
Chuman, Y., Kurihashi, W., Mizukami, Y., Nashimoto, T., Yagi, H., Sakaguchi, K.
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Journal Title
J.Biochem. 145(1)
Pages: 1-12
Peer Reviewed
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[Journal Article] Effects of tumor-associated mutations in the p53 tetramerization domain on oligomerization state and transcriptional activity.2009
Author(s)
Kamada, R., Terai, T., Nomura, T., Chuman, Y, Imagawa, T., Sakaguchi, K.
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Journal Title
Adv.Exp.Med.Biol. 611
Pages: 567-568
Peer Reviewed
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[Journal Article] Oxidation of methionine residue at hydrophobic core destabilizes p53 tetrameric structure2009
Author(s)
Nomura, T., Kamada, R., Ito, I., Chuman, Y, Shimohigashi, Y, Sakaguchi, K.
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Journal Title
Biopolymers 91(1)
Pages: 78-84
Peer Reviewed
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[Journal Article] PPM1D430, a Novel Alternative Splicing Variant of the Human PPM1D.2009
Author(s)
Chuman, Y., Kurihashi, W., Mizukami, Y., Nashimoto, T., Yagi, H., Sakaguchi, K.
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Journal Title
Peptide Science 2008
Pages: 531-532
Peer Reviewed
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[Journal Article] Extremely Long Nanofibrils of Functionalized Structure-Controlled-Amyloid Peptides Derived from Transthyretin.2009
Author(s)
Sakai, H., Asanomi, Y., Kobayashi, Y., Chen, X., Chuman, Y., Masuda, T., Uosaki, K., Sakaguchi, K.
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Journal Title
Peptide Science 2008
Pages: 465-466
Peer Reviewed
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[Journal Article] Characterization of the Active Site and a Unique Uncompetitive Inhibitor of the PPM1-type Protein Phosphatase PPM1D2008
Author(s)
Chuman, Y., Yagi, H., Fukuda, T., Nomura, T., Matsukizono, M., Shimohigashi, Y., Sakaguchi K.
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Journal Title
Protein Pept.Lett. 15
Pages: 938-948
Peer Reviewed
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[Journal Article] Differential Recognition of Phosphorylated Transactivation Domains of p53 by Different p300 Domains2008
Author(s)
Polley, S., Guha, S., Roy, N.S., Kar, S., Sakaguchi, K., Chuman, Y., Swaminathan, V., Roy, S.
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Journal Title
J.Mol.Biol. 376
Pages: 8-12
Peer Reviewed
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[Journal Article] Correlation of Oligomeric Structure and Transcriptional Activity of p53 Mutants.2008
Author(s)
Kamada, R, Terai, T., Nomura, T., Chuman, Y, Imagawa, T., Sakaguchi, K.
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Journal Title
Peptide Science 2007
Pages: 69-70
Peer Reviewed
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[Journal Article] Correlation between Expression Level in E. coli and Stability of Oligomeric Structure of the p53 Tetramerization Domain.2008
Author(s)
Miyazaki, H., Kamada, R., Nomura, T., Chuman, Y., Imagawa, T., Sakaguchi, K.
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Journal Title
Peptide Science 2007
Pages: 317-318
Peer Reviewed
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[Journal Article] Structural Photomodulation of Peptides with Azobenzoate Derivative in Peptide Backbone.2008
Author(s)
Kamada, R., Fukuda, K., Miyazaki, H., Nomura, T., Chuman, Y., Imagawa, T., Tanino, K., Sakaguchi, K.
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Journal Title
Peptide Science 2007
Pages: 447-448
Peer Reviewed
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