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Secondary structures comparison of aquaporin-1 and bacteriorhodopsin: a Fourier transform infrared spectroscopy study of two-dimensional membrane crystals.

• Véronique Cabiaux, K A Oberg, Petr Pancoska, Tom Walz, Phil Agre, A. Engel
• Biophysical journal
• 1997

Aquaporins are integral membrane proteins found in diverse animal and plant tissues that mediate the permeability of plasma membranes to water molecules. Projection maps of two-dimensional crystals… (More)

Discrete intermediates versus molten globule models for protein folding: characterization of partially folded intermediates of apomyoglobin.

• Anthony L. Fink, K A Oberg, S. Seshadri
• Folding & design
• 1998

BACKGROUND Although small proteins may fold in an apparent two-state manner, most studies of protein folding reveal transient intermediates. The 'molten globule' has been proposed to be a general… (More)

Papaya glutamine cyclase, a plant enzyme highly resistant to proteolysis, adopts an all-beta conformation.

• K A Oberg, J. M. Ruysschaert, +5 authors Yvan Looze
• European journal of biochemistry
• 1998

Glutamine cyclases catalyse the conversion of L-glutaminyl-peptides into 5-oxoprolyl-peptides with the concomitant liberation of ammonia. We report here biophysical characterisation of the glutamine… (More)

Thermally denatured ribonuclease A retains secondary structure as shown by FTIR.

• S. Seshadri, K A Oberg, A. L. Fink
• Biochemistry
• 1994

Fourier transform-infrared (FTIR) spectroscopy has been used to test for the presence of nonrandom structure in thermally denatured ribonuclease A (RNase A) at pH* 2.0 (uncorrected pH measured in… (More)

Conformational variability of the synthetic peptide 129-141 of the mouse prion protein.

• Martine Prévost, Françoise Jacquemotte, K A Oberg, Dominiek Staelens, Bart Devreese, Jos Van Beeumen
• Journal of biomolecular structure & dynamics
• 2000

The effect of solution conditions on the conformation of the peptide corresponding to residues 129-141 of the mouse prion protein has been examined by experimental and theoretical tools including… (More)

Measuring Gravity Currents in the Chicago River, Chicago, Illinois

• K A Oberg, J. A. Czuba, K. K. Johnson
• 2008 IEEE/OES 9th Working Conference on Current…
• 2008

Recent studies of the Chicago River have determined that gravity currents are responsible for persistent bidirectional flows that have been observed in the river. A gravity current is the flow of one… (More)

A new attenuated total reflectance Fourier transform infrared spectroscopy method for the study of proteins in solution.

• K A Oberg, A. L. Fink
• Analytical biochemistry
• 1998

An attenuated total reflectance Fourier transform infrared method has been developed that allows collection of spectra from proteins in solution. This method eliminates any structural perturbations… (More)

Difference between the E1 and E2 conformations of gastric H+/K+-ATPase in a multilamellar lipid film system. Characterization by fluorescence and ATR-FTIR spectroscopy under a continuous buffer flow.

• Delphine Vander Stricht, Vincent Raussens, K A Oberg, J. M. Ruysschaert, Erik Goormaghtigh
• European journal of biochemistry
• 2001

A liquid flow cell was used for an attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) study of conformational changes taking place in the gastric H+/K+-ATPase. Shifting… (More)

Enzyme-induced strain/distortion in the ground-state ES complex in beta-lactamase catalysis revealed by FTIR.

• Mark J Hokenson, G A Cope, E. R. Lewis, K A Oberg, A. L. Fink
• Biochemistry
• 2000

Class A beta-lactamases hydrolyze penicillins and other beta-lactams via an acyl-enzyme catalytic mechanism. Ser70 is the active site nucleophile. By constructing the S70A mutant, which is unable to… (More)

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