Index Catalog // ScholarsArchive@OSU

Mineral Surfaces as Agents of Environmental Proteolysis: Mechanisms and Controls

Creator:: Chacon, Stephany S.
Abstract:: The bottleneck in the turnover of soil organic matter (SOM) is the conversion of large molecular compounds into smaller compounds that can be transported through a cell membrane of a microbe for processing. Once inside the cell, organic compounds can be converted into biomass or be respired. The microbial depolymerization...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Stephany S. Chacon for

Testing Extractants to Study How Protein Interacts with Iron Oxide Minerals

Creator:: Tan, Aylmer and Chacon, Stephany S.
Abstract:: The goals of this experiment highlighted in this poster were to find a suitable extractant to extract protein adsorbed onto iron oxide minerals and to determine whether those minerals can modify protein. Data obtained from this experiment provides crucial background information to study the effects hydrogen peroxide has on protein...
Resource Type:: Poster
Full Text:: to express my gratitude to Joseph S. Beckman, Ph.D., Alvaro G. Estevez, Ph.D. and Peter Bottomley

AndersenProteinMineralInteractionsSupplementaryInfo.pdf

Creator:: Andersen, Amity, Reardon, Patrick N., Chacon, Stephany S., Qafoku, Nikolla P., Washton, Nancy M., and Kleber, Markus
Abstract:: Molecular dynamics simulations, conventional and metadynamics, were performed to determine the interaction of model protein Gb1 over kaolinite (001), Na⁺-montmorillonite (001), Ca²⁺-montmorillonite (001), goethite (100), and Na⁺-birnessite (001) mineral surfaces. Gb1, a small (56 residue) protein with a well-characterized solution-state nuclear magnetic resonance (NMR) structure and having α-helix, 4-fold β-sheet,...
Full Text:: ,1 Stephany S. Chacon,2 Nikolla P. Qafoku,3 Nancy M. Washton,1 Markus Kleber2,4 1Environmental

ReardonAbioticProteinFragmentationSupportingInfo.pdf

Creator:: Reardon, Patrick N., Chacon, Stephany S., Walter, Eric D., Bowden, Mark E., Washton, Nancy M., and Kleber, Markus
Abstract:: The ability of plants and microorganisms to take up organic nitrogen in the form of free amino acids and oligopeptides has received increasing attention over the last two decades, yet the mechanisms for the formation of such compounds in soil environments remain poorly understood. We used Nuclear Magnetic Resonance (NMR)...
Full Text:: : implications for a mechanism to supply soil biota with oligopeptides. Patrick N. Reardon b* , Stephany S

ReardonAbioticProteinFragmentation.pdf

Creator:: Reardon, Patrick N., Chacon, Stephany S., Walter, Eric D., Bowden, Mark E., Washton, Nancy M., and Kleber, Markus
Abstract:: The ability of plants and microorganisms to take up organic nitrogen in the form of free amino acids and oligopeptides has received increasing attention over the last two decades, yet the mechanisms for the formation of such compounds in soil environments remain poorly understood. We used Nuclear Magnetic Resonance (NMR)...
Full Text:: : Implications for a Mechanism to Supply Soil Biota with Oligopeptides Patrick N. Reardon,*,‡ Stephany S. Chacon

AndersenProteinMineralInteractions.pdf

Creator:: Andersen, Amity, Reardon, Patrick N., Chacon, Stephany S., Qafoku, Nikolla P., Washton, Nancy M., and Kleber, Markus
Abstract:: Molecular dynamics simulations, conventional and metadynamics, were performed to determine the interaction of model protein Gb1 over kaolinite (001), Na⁺-montmorillonite (001), Ca²⁺-montmorillonite (001), goethite (100), and Na⁺-birnessite (001) mineral surfaces. Gb1, a small (56 residue) protein with a well-characterized solution-state nuclear magnetic resonance (NMR) structure and having α-helix, 4-fold β-sheet,...
Full Text:: Andersen,*,† Patrick N. Reardon,† Stephany S. Chacon,§ Nikolla P. Qafoku,‡ Nancy M. Washton,† and Markus

Protein–Mineral Interactions: Molecular Dynamics Simulations Capture Importance of Variations in Mineral Surface Composition and Structure

Creator:: Andersen, Amity, Reardon, Patrick N., Chacon, Stephany S., Qafoku, Nikolla P., Washton, Nancy M., and Kleber, Markus
Abstract:: Molecular dynamics simulations, conventional and metadynamics, were performed to determine the interaction of model protein Gb1 over kaolinite (001), Na⁺-montmorillonite (001), Ca²⁺-montmorillonite (001), goethite (100), and Na⁺-birnessite (001) mineral surfaces. Gb1, a small (56 residue) protein with a well-characterized solution-state nuclear magnetic resonance (NMR) structure and having α-helix, 4-fold β-sheet,...
Resource Type:: Article

Abiotic Protein Fragmentation by Manganese Oxide: Implications for a Mechanism to Supply Soil Biota with Oligopeptides

Creator:: Reardon, Patrick N., Chacon, Stephany S., Walter, Eric D., Bowden, Mark E., Washton, Nancy M., and Kleber, Markus
Abstract:: The ability of plants and microorganisms to take up organic nitrogen in the form of free amino acids and oligopeptides has received increasing attention over the last two decades, yet the mechanisms for the formation of such compounds in soil environments remain poorly understood. We used Nuclear Magnetic Resonance (NMR)...
Resource Type:: Article

The Global S₁ Tide

Creator:: Ray, Richard D. and Egbert, Gary D.
Abstract:: The small S₁ ocean tide is caused primarily by diurnal atmospheric pressure loading. Its excitation is therefore unlike any other diurnal tide; in particular, pressure loading is maximum near the equator where the diurnal gravitational potential is zero. The global character of the S₁ tide is here determined by numerical...
Resource Type:: Article
Full Text:: phoc_34_807.1922_1935.tp 1922 VOLUME 34J O U R N A L O F P H Y S I C A

Mode patterns in quadrupole resonator with anisotropic core

Creator:: Thongrattanasiri, Sukosin
Abstract:: This thesis deals with applications of uniaxial anisotropic crystals for microcavity resonators with partially chaotic underlying ray dynamics. We develop an implementation of the scattering matrix formalism, and relate the eigenvalues and eigenvectors of the scattering matrix to the field distribution of inside the system. Using the developed technique, we...
Resource Type:: Masters Thesis
Full Text:: type the horizontal axis. s of aces. is aligned parallel to the optical axis, and surf zk 7

ScholarsArchive@OSU

Mineral Surfaces as Agents of Environmental Proteolysis: Mechanisms and Controls

Testing Extractants to Study How Protein Interacts with Iron Oxide Minerals

AndersenProteinMineralInteractionsSupplementaryInfo.pdf

ReardonAbioticProteinFragmentationSupportingInfo.pdf

ReardonAbioticProteinFragmentation.pdf

AndersenProteinMineralInteractions.pdf

Protein–Mineral Interactions: Molecular Dynamics Simulations Capture Importance of Variations in Mineral Surface Composition and Structure

Abiotic Protein Fragmentation by Manganese Oxide: Implications for a Mechanism to Supply Soil Biota with Oligopeptides

The Global S₁ Tide

Mode patterns in quadrupole resonator with anisotropic core

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