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    Kinetic and Structural Studies on Interactions between Heparin/Heparan Sulfate and Proteins of the Hedgehog Signaling Pathway

    Author
    Zhang, Fuming; McLellan, Jason S.; Ayala, Alondra M.; Leahy, Daniel J.; Linhardt, Robert J.
    ORCID
    https://orcid.org/0000-0003-2219-5833
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    KINETIC AND STRUCTURAL STUDIES ON INTERACTIONS BETWEEN HEPARIN.pdf (2.120Mb)
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    Date Issued
    2007-04-03
    Subject
    Biology; Chemistry and chemical biology; Chemical and biological engineering; Biomedical engineering
    Degree
    Terms of Use
    In Copyright : this Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). https://rightsstatements.org/page/InC/1.0/;
    Full Citation
    Kinetic and Structural Studies on Interactions between Heparin/Heparan Sulfate and Proteins of the Hedgehog Signaling Pathway, F. Zhang, J. S. McLellan, A. M. A. Jiménez, D. J. Leahy, R. J. Linhardt, Biochemistry, 46, 3933-3941, 2007.
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    URI
    https://hdl.handle.net/20.500.13015/5205; https://doi.org/10.1021/bi6025424
    Abstract
    Heparan sulfate (HS) proteoglycans (PGs) interact with a number of extracellular signaling proteins, thereby playing an essential role in the regulation of many physiological processes. These interactions are important for both normal signal transduction and regulation of the tissue distribution of signaling molecules. In this study, we use surface plasmon resonance (SPR) to study interactions of HS and structurally related heparin with proteins in the Hedgehog signaling pathway. SPR analysis shows that heparin binds with different affinities to active fragments of the proteins Hedgehog (Hh), Interference Hedgehog (Ihog), Cam-related/Down-regulated by Oncogenes (CDO), and Sonic Hedgehog (Shh). Solution competition studies show that the minimum size of a heparin oligosaccharide capable of interacting with Ihog is larger than a tetrasaccharide and for interacting with Shh is larger than an octasaccharide. In comparison with heparin, Ihog and Shh exhibited a lower affinity for HS than for heparin, and CDO and Hh exhibit negligible binding to HS. This study clearly demonstrates Shh and Ihog are heparin and HS binding proteins and that both molecules preferentially bind heparin or HS having a high level of sulfation.;
    Description
    Biochemistry, 46, 3933-3941; Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
    Department
    The Linhardt Research Labs.; The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS);
    Publisher
    American Chemical Society (ACS)
    Relationships
    The Linhardt Research Labs Online Collection; Rensselaer Polytechnic Institute, Troy, NY; Biochemistry; https://harc.rpi.edu/;
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    A full text version is available in DSpace@RPI;
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