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  • 1
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    Ventroptin: a BMP-4 antagonist expressed in a double-gradient pattern in the retina (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-07-07
    Description: In the visual system, the establishment of the anteroposterior and dorsoventral axes in the retina and tectum during development is important for topographic retinotectal projection. We identified chick Ventroptin, an antagonist of bone morphogenetic protein 4 (BMP-4), which is mainly expressed in the ventral retina, not only with a ventral high-dorsal low gradient but also with a nasal high-temporal low gradient at later stages. Misexpression of Ventroptin altered expression patterns of several topographic genes in the retina and projection of the retinal axons to the tectum along both axes. Thus, the topographic retinotectal projection appears to be specified by the double-gradient molecule Ventroptin along the two axes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sakuta, H -- Suzuki, R -- Takahashi, H -- Kato, A -- Shintani, T -- Iemura Si -- Yamamoto, T S -- Ueno, N -- Noda, M -- New York, N.Y. -- Science. 2001 Jul 6;293(5527):111-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Neurobiology, National Institute for Basic Biology, The Graduate University for Advanced Studies, 38 Nishigonaka, Myodaiji-cho, Okazaki 444-8585, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11441185" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Amino Acid Sequence ; Animals ; Bone Morphogenetic Protein 4 ; Bone Morphogenetic Proteins/*antagonists & inhibitors/genetics/metabolism ; Chick Embryo ; Cloning, Molecular ; Electroporation ; Embryo, Nonmammalian/cytology/metabolism ; Eye Proteins/chemistry/genetics/*metabolism ; *Gene Expression Regulation, Developmental ; Gene Library ; Humans ; In Situ Hybridization ; Mice ; Microinjections ; Molecular Sequence Data ; *Morphogenesis ; Nerve Tissue Proteins ; Precipitin Tests ; Protein Binding ; Protein Isoforms/chemistry/genetics/metabolism ; RNA, Messenger/analysis/genetics ; Retina/*embryology/*metabolism ; Sequence Alignment ; Surface Plasmon Resonance ; Xenopus Proteins ; Xenopus laevis/embryology/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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  • 2
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    Identification of small clusters of divergent amino acids that mediate the opposing effects of ras and Krev-1 (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-07-13
    Description: Krev-1 is an anti-oncogene that was originally identified by its ability to induce morphologic reversion of ras-transformed cells that continue to express the ras gene. The Krev-1-encoded protein is structurally related to Ras proteins. The biological activities of a series of ras-Krev-1 chimeras were studied to test the hypothesis that Krev-1 may directly interfere with a ras function. The ras-specific and Krev-1-specific amino acids immediately surrounding residues 32 to 44, which are identical between the two proteins, determined whether the protein induced cellular transformation or suppressed ras transformation. Because this region in Ras proteins has been implicated in effector function, the results suggest that Krev-1 suppresses ras-induced transformation by interfering with interaction of Ras with its effector.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, K -- Noda, M -- Vass, W C -- Papageorge, A G -- Lowy, D R -- New York, N.Y. -- Science. 1990 Jul 13;249(4965):162-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular Oncology, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2115210" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acids/*physiology ; Animals ; Cell Transformation, Neoplastic/*genetics ; Chimera ; GTP-Binding Proteins/*genetics ; *Gene Expression Regulation, Neoplastic ; *Genes, ras ; Harvey murine sarcoma virus/genetics ; Molecular Sequence Data ; Mutation ; Restriction Mapping ; *Suppression, Genetic ; rap GTP-Binding Proteins
    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)
    Location Call Number Expected Availability
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