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  • 1
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    Structure of human methionine aminopeptidase-2 complexed with fumagillin (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-11-13
    Description: The fungal metabolite fumagillin suppresses the formation of new blood vessels, and a fumagillin analog is currently in clinical trials as an anticancer agent. The molecular target of fumagillin is methionine aminopeptidase-2 (MetAP-2). A 1.8 A resolution crystal structure of free and inhibited human MetAP-2 shows a covalent bond formed between a reactive epoxide of fumagillin and histidine-231 in the active site of MetAP-2. Extensive hydrophobic and water-mediated polar interactions with other parts of fumagillin provide additional affinity. Fumagillin-based drugs inhibit MetAP-2 but not MetAP-1, and the three-dimensional structure also indicates the likely determinants of this specificity. The structural basis for fumagillin's potency and specificity forms the starting point for structure-based drug design.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, S -- Widom, J -- Kemp, C W -- Crews, C M -- Clardy, J -- CA24487/CA/NCI NIH HHS/ -- CA59021/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Nov 13;282(5392):1324-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉J. Clardy, Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, NY 14853-1301, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9812898" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Aminopeptidases/antagonists & inhibitors/*chemistry/metabolism ; Binding Sites ; Crystallography, X-Ray ; Cyclohexanes ; Fatty Acids, Unsaturated/chemistry/*metabolism/pharmacology ; Humans ; Hydrogen Bonding ; Metalloendopeptidases/antagonists & inhibitors/*chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Secondary ; Sequence Alignment ; Sesquiterpenes
    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
    Electronic Resource
    Electronic Resource
    Carbohydrate Metabolism in Insect Cell Cultures during Cell Growth and Recombinant Protein Production (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 665 (1992), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1992.tb42587.x
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of temperature and oxygen on cell growth and recombinant protein production in insect cell cultures (1993)
    Springer
    Applied microbiology and biotechnology 38 (1993), S. 619-623 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The effect of temperature and O2 saturation on the production of recombinant proteins β-galactosidase and human glucocerebrosidase by Spodoptera frugiperda cells (Sf9) infected with recombinant Autographa californica nuclear polyhedrosis virus was investigated. The rates of cell growth, glucose consumption, O2 consumption and product expression were measured at temperatures between 22° C and 35° C. The results indicated that possible O2 limitation may be alleviated without compromising the maximum cell yield by lowering the incubation temperature from 27° C to 25° C. The expression level of the recombinant proteins at 27° C was similar to that obtained at 22° C and 25° C; lower protein yields were obtained at 30° C. An increase in temperature from 22° C to 27° C led to earlier production of the proteins and to an increase in the proportion of the product released outside the cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00182800
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  • 4
    Electronic Resource
    Electronic Resource
    Production of recombinant proteins in high-density insect cell cultures (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 42 (1993), S. 235-239 
    Details
    ISSN: 0006-3592
    Keywords: insect cells ; high density culture ; recombinant protein production ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The effect of the growth phase of Spodoptera frugiperda (Sf9) cells on the production of recombinant proteins (β-galactosidase and glucocerebrosidase) was investigated. Cells infected with the recombinant Autographa californica nuclear polyhedrosis virus at the late exponential and stationary phases yielded low quantities of expressed protein. Highest enzyme yields were obtained using Sf9 cells from the early exponential phase (0.9 mg β-galactosidase/106 cells and 1.7 μg glucocerebrosidase/106 cells). Infection of resuspension of cells collected from various phases of growth in fresh medium resulted in 75% restoration of maximal expression levels. This finding suggested either nutrient limitation or waste product accumulation as the cause of the decrease in productivity at the latter phases of growth. Further experiments revealed that the highest productivity levels could be obtained with cultures of Sf9 cells grown in a fermentor to a cell concentration of 4 × 106 mL-1. The medium needed to be replaced prior to infection with the recombinant virus and supplemented with a mixture of glucose, L-glutamine, and yeastolate ultrafiltrate. © 1993 John Wiley & Sons, Inc.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260420211
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  • 5
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    Distribution, Composition and Characteristics of the Surficial Sediments of Lake Ontario (1972)
    Society for Sedimentary Geology
    Details
    Publication Date: 1972-01-01
    Print ISSN: 1527-1404
    Electronic ISSN: 1938-3681
    Topics: Geosciences
    Published by Society for Sedimentary Geology
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