Search Results - "Sampson, S. N."
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Clodronate improves lameness in horses without changing bone turnover markers
Published in Equine veterinary journal (01-05-2019)“…Summary Background Clodronate is prescribed to performance horses with lameness. Despite its clinical popularity, little research has been done to understand…”
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2
Understanding protein lids: structural analysis of active hinge mutants in triosephosphate isomerase
Published in Protein engineering, design and selection (01-04-2004)“…The conformational switch from open to closed of the flexible loop 6 of triosephosphate isomerase (TIM) is essential for the catalytic properties of TIM. Using…”
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Standardised exercise testing in 17 reining horses: Musculoskeletal, respiratory, cardiac and clinicopathological findings
Published in Equine veterinary education (01-05-2018)“…Summary Exercise testing can be useful to evaluate poor performance, as a preventative medicine tool, and in the assessment of training progression. A…”
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The Presence of a Hydrogen Bond between Asparagine 485 and the π System of FAD Modulates the Redox Potential in the Reaction Catalyzed by Cholesterol Oxidase
Published in Biochemistry (Easton) (20-11-2001)“…Cholesterol oxidase catalyzes the oxidation and isomerization of cholesterol to cholest-4-en-3-one. An asparagine residue (Asn485) at the active site is…”
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Dissection of a flavoenzyme active site: the reaction catalyzed by cholesterol oxidase
Published in Antioxidants & redox signaling (01-10-2001)“…Cholesterol oxidase is a member of the glucose-methanol-choline (GMC) oxidoreductase family that is characterized by a conserved topology. We review our…”
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The equine cervical spine: comparing MRI and contrast-enhanced CT images with anatomic slices in the sagittal, dorsal, and transverse plane
Published in The Veterinary quarterly (01-01-2014)“…Background: The impact of cervical pathology on performance is of great importance to the horse industry. Accurate diagnosis of cervical disease with imaging…”
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Use of the Parallax-Quench Method to Determine the Position of the Active-Site Loop of Cholesterol Oxidase in Lipid Bilayers
Published in Biochemistry (Easton) (07-11-2000)“…To elucidate the cholesterol oxidase−membrane bilayer interaction, a cysteine was introduced into the active site lid at position-81 using the Brevibacterium…”
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8
Segmental motion in catalysis: investigation of a hydrogen bond critical for loop closure in the reaction of triosephosphate isomerase
Published in Biochemistry (Easton) (15-09-1992)“…A residue essential for proper closure of the active-site loop in the reaction catalyzed by triosephosphate isomerase is tyrosine-208, the hydroxyl group of…”
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Determination of the amino acid requirements for a protein hinge in triosephosphate isomerase
Published in Protein science (01-07-1998)“…We have determined the sequence requirements for a protein hinge in triosephosphate isomerase. The codons encoding the hinge at the C‐terminus of the…”
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10
Segmental movement: definition of the structural requirements for loop closure in catalysis by triosephosphate isomerase
Published in Biochemistry (Easton) (15-09-1992)“…To determine what drives the closure of the active-site loop in the reaction catalyzed by triosephosphate isomerase, several residues involved in hydrogen…”
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Characterization of fertilinβ-disintegrin binding specificity in sperm-egg adhesion
Published in Bioorganic & medicinal chemistry (01-04-2000)“…An essential step leading to fertilization is the binding of a sperm to the egg plasma membrane. Fertilin beta, a membrane bound protein on the extracellular…”
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Crystal structures of .alpha.-lytic protease complexes with irreversibly bound phosphonate esters
Published in Biochemistry (Easton) (26-02-1991)“…The structures of the complexes with alpha-lytic protease of both phosphorus stereoisomers of…”
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Library screening studies to investigate substrate specificity in the reaction catalyzed by cholesterol oxidase
Published in Protein engineering, design and selection (01-04-2004)“…We tested whether it is possible to alter the substrate specificity of cholesterol oxidase for similarly sized sterols, i.e. cholesterol, β-sitosterol and…”
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14
Crystal Structure Determination of Cholesterol Oxidase from Streptomyces and Structural Characterization of Key Active Site Mutants
Published in Biochemistry (Easton) (06-04-1999)“…Cholesterol oxidase is a monomeric flavoenzyme which catalyzes the oxidation and isomerization of cholesterol to cholest-4-en-3-one. The enzyme interacts with…”
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15
Surface Molecular Recognition
Published in Proceedings of the National Academy of Sciences - PNAS (06-11-2001)“…The spatial display of cellular ligands and receptors is important for cell adhesion and communication. Two approaches that emphasize developing selective…”
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Understanding Protein Lids: Kinetic Analysis of Active Hinge Mutants in Triosephosphate Isomerase
Published in Biochemistry (Easton) (31-08-1999)“…In previous work we tested what three amino acid sequences could serve as a protein hinge in triosephosphate isomerase [Sun, J., and Sampson, N. S. (1998)…”
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The importance of hinge sequence for loop function and catalytic activity in the reaction catalyzed by triosephosphate isomerase
Published in Journal of molecular biology (06-04-2001)“…We have determined the sequence requirements for the N-terminal protein hinge of the active-site lid of triosephosphate isomerase. The codons for the hinge…”
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Targeting Multiple Binding Sites on Cholera Toxin B with Glycomimetic Polymers Promotes the Formation of Protein–Polymer Aggregates
Published in Biomacromolecules (14-12-2020)“…The canonical binding site on the B subunit of cholera toxin (CTB) binds to GM1 gangliosides on host cells. However, the recently discovered noncanonical…”
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Dimyristoylated Peptides Incorporated into Liposomes Are Polyvalent Fertilin β Mimics
Published in Organic letters (18-10-2001)“…Fertilin β is an integral membrane sperm protein that is involved in sperm binding to the egg plasma membrane. We synthesized a dimyristoylated fertilin β…”
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Construction of a catalytically inactive cholesterol oxidase mutant: investigation of the interplay between active site-residues glutamate 361 and histidine 447
Published in Archives of biochemistry and biophysics (15-06-2002)“…Cholesterol oxidase catalyzes the oxidation of cholesterol to cholest-5-en-3-one and its subsequent isomerization into cholest-4-en-3-one. Two active-site…”
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