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  • 1
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    A secreted PTEN phosphatase that enters cells to alter signaling and survival (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-06-08
    Description: Phosphatase and tensin homolog on chromosome ten (PTEN) is a tumor suppressor and an antagonist of the phosphoinositide-3 kinase (PI3K) pathway. We identified a 576-amino acid translational variant of PTEN, termed PTEN-Long, that arises from an alternative translation start site 519 base pairs upstream of the ATG initiation sequence, adding 173 N-terminal amino acids to the normal PTEN open reading frame. PTEN-Long is a membrane-permeable lipid phosphatase that is secreted from cells and can enter other cells. As an exogenous agent, PTEN-Long antagonized PI3K signaling and induced tumor cell death in vitro and in vivo. By providing a means to restore a functional tumor-suppressor protein to tumor cells, PTEN-Long may have therapeutic uses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3935617/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3935617/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hopkins, Benjamin D -- Fine, Barry -- Steinbach, Nicole -- Dendy, Meaghan -- Rapp, Zachary -- Shaw, Jacquelyn -- Pappas, Kyrie -- Yu, Jennifer S -- Hodakoski, Cindy -- Mense, Sarah -- Klein, Joshua -- Pegno, Sarah -- Sulis, Maria-Luisa -- Goldstein, Hannah -- Amendolara, Benjamin -- Lei, Liang -- Maurer, Matthew -- Bruce, Jeffrey -- Canoll, Peter -- Hibshoosh, Hanina -- Parsons, Ramon -- 2T32 CA09503/CA/NCI NIH HHS/ -- CA082783/CA/NCI NIH HHS/ -- CA097403/CA/NCI NIH HHS/ -- P01 CA097403/CA/NCI NIH HHS/ -- R01 CA082783/CA/NCI NIH HHS/ -- R01 CA155117/CA/NCI NIH HHS/ -- R01 NS066955/NS/NINDS NIH HHS/ -- R01 NS073610/NS/NINDS NIH HHS/ -- R01NS066955/NS/NINDS NIH HHS/ -- T32 CA009503/CA/NCI NIH HHS/ -- T32 GM008224/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Jul 26;341(6144):399-402. doi: 10.1126/science.1234907. Epub 2013 Jun 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, New York, NY 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23744781" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line, Tumor ; *Cell Survival ; Embryonic Stem Cells ; Glioblastoma/drug therapy/metabolism/pathology ; HEK293 Cells ; Humans ; Mice ; Mice, Nude ; Molecular Sequence Data ; Mutation ; PTEN Phosphohydrolase/*chemistry/genetics/*metabolism/pharmacology ; Peptide Chain Initiation, Translational ; Phosphatidylinositol 3-Kinase/*metabolism ; Phosphorylation ; Proto-Oncogene Proteins c-akt/metabolism ; RNA, Messenger/genetics/metabolism ; *Signal Transduction/drug effects ; Xenograft Model Antitumor Assays
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Emulating membrane protein evolution by rational design (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-01-27
    Description: How do integral membrane proteins evolve in size and complexity? Using the small multidrug-resistance protein EmrE from Escherichia coli as a model, we experimentally demonstrated that the evolution of membrane proteins composed of two homologous but oppositely oriented domains can occur in a small number of steps: An original dual-topology protein evolves, through a gene-duplication event, to a heterodimer formed by two oppositely oriented monomers. This simple evolutionary pathway can explain the frequent occurrence of membrane proteins with an internal pseudo-two-fold symmetry axis in the plane of the membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rapp, Mikaela -- Seppala, Susanna -- Granseth, Erik -- von Heijne, Gunnar -- New York, N.Y. -- Science. 2007 Mar 2;315(5816):1282-4. Epub 2007 Jan 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Biomembrane Research, Department of Biochemistry and Biophysics, Stockholm University, SE-106 91 Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17255477" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antiporters/*chemistry/genetics ; Cell Membrane/*chemistry ; Dimerization ; Directed Molecular Evolution ; Drug Resistance, Bacterial ; Escherichia coli/*chemistry/drug effects/genetics/growth & development ; Escherichia coli Proteins/*chemistry/genetics ; Ethidium/pharmacology ; *Evolution, Molecular ; Gene Duplication ; Membrane Transport Proteins/*chemistry/genetics ; Molecular Sequence Data ; Mutation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/chemistry ; Recombinant Fusion Proteins/chemistry/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Primary structure of v-raf: relatedness to the src family of oncogenes (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-04-20
    Description: A replication-defective, acute transforming retrovirus (murine sarcoma virus 3611) was isolated from mouse and molecularly cloned. The nucleotide sequence of 1.5 kilobases encompassing the transforming gene (v-raf) was determined. This sequence, which predicts the amino acid sequence of a gag-raf fusion protein, terminates 180 nucleotides from the 3' end of the acquired cellular sequence. Comparison of the predicted amino acid sequence of v-raf with the predicted amino acid sequences of other oncogenes reveals significant homologies to the src family of oncogenes. There is a lack of homology within the sequence of the tyrosine acceptor domain described for the phosphotyrosine kinase members of the src family of transforming proteins. Phylogenetic arrangement of this family of oncogenes suggests that tyrosine-specific phosphorylation may be a recently acquired activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mark, G E -- Rapp, U R -- New York, N.Y. -- Science. 1984 Apr 20;224(4646):285-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6324342" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; Biological Evolution ; Cell Transformation, Neoplastic ; Cell Transformation, Viral ; DNA Restriction Enzymes ; Gene Products, gag ; *Genes, Viral ; Mice ; *Oncogenes ; Protein Biosynthesis ; Protein Kinases/metabolism ; Protein-Tyrosine Kinases ; Sarcoma Viruses, Murine/*genetics ; Transcription, Genetic ; Tyrosine/metabolism ; Viral Proteins/analysis/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Germline variant FGFR4 p.G388R exposes a membrane-proximal STAT3 binding site (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-12-18
    Description: Variant rs351855-G/A is a commonly occurring single-nucleotide polymorphism of coding regions in exon 9 of the fibroblast growth factor receptor FGFR4 (CD334) gene (c.1162G〉A). It results in an amino-acid change at codon 388 from glycine to arginine (p.Gly388Arg) in the transmembrane domain of the receptor. Despite compelling genetic evidence for the association of this common variant with cancers of the bone, breast, colon, prostate, skin, lung, head and neck, as well as soft-tissue sarcomas and non-Hodgkin lymphoma, the underlying biological mechanism has remained elusive. Here we show that substitution of the conserved glycine 388 residue to a charged arginine residue alters the transmembrane spanning segment and exposes a membrane-proximal cytoplasmic signal transducer and activator of transcription 3 (STAT3) binding site Y(390)-(P)XXQ(393). We demonstrate that such membrane-proximal STAT3 binding motifs in the germline of type I membrane receptors enhance STAT3 tyrosine phosphorylation by recruiting STAT3 proteins to the inner cell membrane. Remarkably, such germline variants frequently co-localize with somatic mutations in the Catalogue of Somatic Mutations in Cancer (COSMIC) database. Using Fgfr4 single nucleotide polymorphism knock-in mice and transgenic mouse models for breast and lung cancers, we validate the enhanced STAT3 signalling induced by the FGFR4 Arg388-variant in vivo. Thus, our findings elucidate the molecular mechanism behind the genetic association of rs351855 with accelerated cancer progression and suggest that germline variants of cell-surface molecules that recruit STAT3 to the inner cell membrane are a significant risk for cancer prognosis and disease progression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ulaganathan, Vijay K -- Sperl, Bianca -- Rapp, Ulf R -- Ullrich, Axel -- HL-102923/HL/NHLBI NIH HHS/ -- HL-102924/HL/NHLBI NIH HHS/ -- HL-102925/HL/NHLBI NIH HHS/ -- HL-102926/HL/NHLBI NIH HHS/ -- HL-103010/HL/NHLBI NIH HHS/ -- England -- Nature. 2015 Dec 24;528(7583):570-4. doi: 10.1038/nature16449. Epub 2015 Dec 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Biochemistry, Department of Molecular Biology, Am Klopferspitz 18, 82152, Martinsried. Germany. ; Max Planck Institute for Heart and Lung Research, Molecular Mechanisms of Lung Cancer, Parkstrasse 1, 61231 Bad Nauheim, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26675719" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs/genetics ; Amino Acid Sequence ; Animals ; Binding Sites/genetics ; Breast Neoplasms/genetics/metabolism ; Cell Line ; Cell Membrane/*metabolism ; Disease Models, Animal ; Disease Progression ; Exons/genetics ; Female ; Gene Knock-In Techniques ; *Germ-Line Mutation ; Humans ; Lung Neoplasms/genetics/metabolism ; Male ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Phosphorylation ; Phosphotyrosine/metabolism ; Polymorphism, Single Nucleotide/genetics ; Receptor, Fibroblast Growth Factor, Type 4/chemistry/*genetics/*metabolism ; STAT3 Transcription Factor/*metabolism ; Signal Transduction
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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