Browsing Chemistry and Biochemistry by Title
Now showing items 437-456 of 691
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P(450)/NADPH/O(2)- and P(450)/PhIO-catalyzed N-dealkylations are mechanistically distinct
(American Chemical Society, 2005-02-09)A high-valent iron-oxo species analogous to the compound I of peroxidases has been thought to be the activated oxygen species in P450-catalyzed reactions. Spectroscopic characterization of the catalytically competent ... -
Palladin and regulation of actin crosslinking and dynamics
(Wiley-Blackwell, 2012-08)Palladin is a recently discovered actin-associated protein that appears to be involved in both normal cell migration and invasive cell motility. Recently, we demonstrated that palladin is able to both bind and bundle actin ... -
Palladin Can Compensate for Arp2/3 Complex Defects and Structurally Organizes Actin-Rich Structures Generated during Listeria monocytogenes Infections
(Federation of American Societies for Experimental Biology, 2017-04)The actin cytoskeleton is co-opted by the invasive and motile bacteria Listeria monocytogenes (Listeria) for their entry, intracellular motility and dissemination from one cell to another. Once inside host cells, these ... -
Palladin compensates for branching complex in promoting actin-based motility in listeria
(Wichita State University, 2019-04-26)Palladin is an actin binding protein which has important functions in cell motility both in normal cells during development or in wound healing and in metastatic cancers. The Beck lab has recently shown that palladin ... -
Palladin compensates for the Arp2/3 complex and supports actin structures during Listeria Infections
(American Society For Microbiology, 2018-04-10)Palladin is an important component of motile actin-rich structures and nucleates branched actin filament arrays in vitro. Here we examine the role of palladin during Listeria monocytogenes infections in order to tease out ... -
Palladin Nucleates Actin Assembly and Regulates Cytoskeleton Architecture
(Elsevier Inc., 2015-01-27)The actin scaffold protein palladin regulates both normal cell migration and invasive cell motility, processes that require the coordinated regulation of actin dynamics. Palladin localizes to actin-rich protrusions and has ... -
Palladin nucleates actin assembly and regulates cytoskeleton architecture
(Wichita State University, 2015-05)Palladin is an actin crosslinking protein that uses an immunoglobulin (Ig) domain to bind F-actin. Expression of palladin correlates with increased cell motility in normal cells during development and wound healing, but ... -
Palladin regulates cancer metastasis via actin cytoskeletal remodeling
(Wichita State University, 2016-04-29)The migration of both normal and cancer cells is a complex process that involves dramatic remodeling of the actin cytoskeleton. Currently 90% of cancer deaths result from metastasis, the migration of cells into the ... -
Palladin's Ig4 Mutation: Exploring the link with pancreatic cancer
(Elsevier Inc., 2015-01-27)Palladin is a recently discovered protein that is expressed in human cells and plays a key role in cytoskeletal dynamics by directly binding and bundling filaments of actin. These processes provide an important function ... -
Part I: Characterization of Zn reconstituted Cytochrome B561 Part II: Studies of Catecholamine metabolism in SH-SY5Y and MN9D cells
(Wichita State University, 2009-05)Cytochrome b561, a transmembrane heme protein present in neurotransmitter storage vesicles, shuttles electrons from the cytosolic Asc to the intragranullar matrix to regenerate Asc. Although Cyt b561 has been purified, ... -
Part I: Extracellular hydrogen ions activate tyrosine hydroxylase in catecholaminergic cells Part II: Identification of novel mechanism(s) of Parkinson's disease causing 1-methyl-4-phenylpyridinium neurotoxicity
(Wichita State University, 2015-05)Tyrosine hydroxylase (TH) is the rate-limiting step of the catecholamine biosynthetic pathway, thus, in theory, modulating the TH activity could be a target for therapeutic purposes. Despite extensive studies, there are ... -
Part I: Investigation of mechanism(s) of Cu(II) and Zn(II) neurotoxicity Part II: Pre-steady state kinetics of the reduction of cytochrome b561 with ascorbate
(Wichita State University, 2011-07)The adverse effects of copper on the catecholaminergic nervous system have been well documented and primarily attributed to its redox related properties. To determine the significance of the redox properties of copper, ... -
Partial molal volumes of components in the binary systems: Water-cellosolve and water-carbitol
(Wichita State University, 1937-06) -
Performance enhancing oligomeric amide additives for epoxy resins
(Wichita State University, 2010-12)Additives that enhance the mechanical properties of epoxy resins, by reducing the free volume and thereby restricting the molecular motions, are known as antiplasticizers. Antiplasticizers usually increase the modulus ... -
Periplasmic peptidyl prolyl cis-trans isomerases are not essential for viability, but SurA is required for pilus biogenesis in Escherichia coli
(American Society for Microbiology, 2005-08-31)In Escherichia coli, FkpA, PpiA, PpiD, and SurA are the four known periplasmic cis-trans prolyl isomerases. These isomerases facilitate proper protein folding by increasing the rate of transition of proline residues between ... -
Perturbation of dopamine metabolism by 3-amino-2-(4'-halophenyl)propenes leads to increased oxidative stress and apoptotic SH-SY5Y cell death
(American Society for Pharmacology and Experimental Therapeutics, 2007-09-01)We have recently characterized a series of 3-amino-2-phenyl-propene (APP) derivatives as reversible inhibitors for the bovine adrenal chromaffin granule vesicular monoamine transporter (VMAT) that have been previously ... -
pH effects on binding between the anthrax protective antigen and the host cellular receptor CMG2
(Wiley-Blackwell, 2012-10)The anthrax protective antigen (PA) binds to the host cellular receptor capillary morphogenesis protein 2 (CMG2) with high affinity. To gain a better understanding of how pH may affect binding to the receptor, we have ... -
pH-induced alteration and oxidative destruction of heme in purified chromaffin granule cytochrome b(561): implications for the oxidative stress in catecholaminergic neurons
(American Chemical Society, 2003-04-01)The transmembrane hemoprotein, cytochrome b(561) (b(561)), in the neuroendocrine secretory vesicles is shown to shuttle electrons from the cytosolic ascorbate (Asc) to the intravesicular matrix to provide reducing equivalents ... -
Phosphoinositide binding inhibits actin crosslinking and polymerization by palladin
(Elsevier B.V., 2016-10-09)Actin cytoskeleton remodeling requires the coordinated action of a large number of actin binding proteins that reorganize the actin cytoskeleton by promoting polymerization, stabilizing filaments, causing branching, or ... -
Photocatalytic conversion of CO2 to CO and acrylic acid
(American Chemical Society, 2014-03-16)The synthesis of various rhenium complexes was followed by an investigation of their capacity to reduce CO2 photocatalytically to CO. Re(bpy)(CO)3X (X = Cl, NCS; bpy = 2,2'-bipyridine) was irradiated in a CO2 saturated ...