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  • 1
    Publication Date: 1992-01-03
    Description: The p107 protein and the retinoblastoma protein (RB) both bind specifically to two viral oncoproteins, the SV40 T antigen (T) and adenoviral protein E1A (E1A). Like RB, p107 contains a segment (the pocket) that, alone, can bind specifically to T, E1A, and multiple cellular proteins. Cyclin A bound to the p107 pocket, but not the RB pocket. Although both pockets contain two, related collinear subsegments (A and B), the unique sequence in the p107 pocket that occupies the space between A and B is required for the interaction with cyclin A.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ewen, M E -- Faha, B -- Harlow, E -- Livingston, D M -- New York, N.Y. -- Science. 1992 Jan 3;255(5040):85-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dana-Farber Cancer Institute, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1532457" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus Early Proteins ; Amino Acid Sequence ; Antigens, Polyomavirus Transforming/*metabolism ; Base Sequence ; Binding Sites ; Cell Line ; Cloning, Molecular ; Cyclins/*metabolism ; Escherichia coli/genetics ; Eye Neoplasms ; Glutathione Transferase/genetics/metabolism ; Humans ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; *Nuclear Proteins ; Oligodeoxyribonucleotides ; Oncogene Proteins, Viral/genetics/*metabolism ; Protein Conformation ; Proteins/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Retinoblastoma ; Retinoblastoma Protein/genetics/*metabolism ; Retinoblastoma-Like Protein p107 ; Structure-Activity Relationship
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1992-01-03
    Description: The products of the adenovirus early region 1A (E1A) gene are potent oncoproteins when tested in standard transformation and immortalization assays. Many of the changes induced by E1A may be due to its interaction with cellular proteins. Four of these cellular proteins are the retinoblastoma protein (pRB), p107, cyclin A, and p33cdk2. The pRB and p107 proteins are structurally related and have several characteristics in common, including that they both bind to the SV40 large T oncoprotein as well as to E1A. Cyclin A and p33cdk2 are thought to function in the control of the cell cycle. They bind to one another, forming a kinase that closely resembles the cell cycle-regulating complexes containing p34cdc2. Cyclin A is now shown to bind to p107 in the absence of E1A. The association of p107 with cyclin A suggests a direct link between cell cycle control and the function of p107.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Faha, B -- Ewen, M E -- Tsai, L H -- Livingston, D M -- Harlow, E -- CA 13106/CA/NCI NIH HHS/ -- CA 55339/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Jan 3;255(5040):87-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Massachusetts General Hospital Cancer Center, Charlestown 02129.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1532458" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus Early Proteins ; Amino Acid Sequence ; Antibodies, Monoclonal ; CDC2 Protein Kinase/metabolism ; Cell Line ; Cyclins/immunology/isolation & purification/*metabolism ; Electrophoresis, Polyacrylamide Gel ; Glutathione Transferase/genetics/isolation & purification ; Humans ; Methionine/metabolism ; Molecular Sequence Data ; *Nuclear Proteins ; Oncogene Proteins, Viral/*metabolism ; Proteins/genetics/*metabolism ; Recombinant Fusion Proteins/isolation & purification ; Retinoblastoma Protein/metabolism ; Retinoblastoma-Like Protein p107
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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