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3-D Structure of Human Serum Albumin

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Mark E. Bier
Director, CMA
mbier@andrew.cmu.edu 
412-268-3540 (office) 
412-268-6897 (fax) 


Roberto R. Gil

Director, NMR Facilities

rgil@andrew.cmu.edu

412-268-4313(office)


Carnegie Mellon University 
Department of Chemistry 
Mellon Institute Bldg.
4400 Fifth Avenue
Pittsburgh, PA 15213-2683
 
 



NMR Facility


The NMR facility is located in Room 302 of the Mellon Institute.

We have two Bruker NMR spectrometers: the 300 and 500 MHz Avance systems, installed in summer of 2003. We can perform Multinuclear and Multidimensional NMR Experiments in both Direct and Reverse Detection Mode using Gradient-Assisted Spectroscopy (GRASP). (Funded in part by NSF grant # CHE-9808188)

 

Bruker Avance™ 500
500 MHz (1H Frequency) NMR Instrument

Specifications:

·         Actively Shielded Superconducting Magnet with 5.4 cm bore, operation field at 11.744 Tesla. Bruker Orthogonal Shim System (BOSS ™-2) with 28 shim gradients  

·         Two RF Channels  

·         Variable Temperature Control Unit with Low Temperature accessory (Nitrogen Evaporator)  

·         Equipped with Z-only Gradient Assisted Spectroscopy (GRASP ™ II) accessory for the generation of gradients with up to 50 Gauss/cm  

·         Multinuclear Inverse Broadband (BBI) probe (5mm sample diameter), 1H observe with broadband decoupling coil tunable from 109Ag (23.27 MHz) to 31P (202.45 MHz)  

Windows 2000 Workstation:
Bruker NMR Suite Software package for acquisition of 1D, 2D and 3D NMR data. The suite includes: XWINNMR 3.5, XWINPLOT, ICON-NMR, NMR-CHECK, and NMR-SIM 

 

Bruker Avance™ 300
300 MHz (1H Frequency) NMR Instrument

Specifications: 

·         Superconducting Magnet with 5.4 cm bore, operation field at 7.049 Tesla. Bruker Orthogonal Shim System (BOSS ™-1) with 20 shim gradients  

·         Two RF Channels  

·         Equipped with Z-only Gradient Assisted Spectroscopy (GRASP ™ II) accessory for the generation of gradients with up to 50 Gauss/cm  

·         Variable Temperature Control Unit with Low Temperature accessory (Nitrogen Evaporator)  

·         Multinuclear Broadband Observe (BBO) probe (5mm sample diameter) to directly observe nuclei covering the range from 109Ag (13.97 MHz) to 31P (121.49 MHz), with 1H decoupling.  

Windows 2000 Workstation:
Bruker NMR Suite Software package for acquisition of 1D, 2D and 3D NMR data. The suite includes: XWINNMR 3.5, XWINPLOT, ICON-NMR, NMR-CHECK, and NMR-SIM 


Capabilities:

Our Facility is capable of performing a wide variety of NMR experiment. Some of the most common experiments are listed below by category.

Routine NMR Spectroscopy

Standard 1H, 13C, 31P, 19F, 15N, 29Si NMR experiments

Decoupling Techniques

Homonuclear Decoupling
1D Nuclear Overhauser Difference Spectroscopy

Dynamic NMR Spectroscopy

High and Low Temperature Experiments
Saturation Transfer Experiments
EXSY (EXchange SpectroscopY)

1D Multipulse Sequences

Measurement of the Spin-Lattice Relaxation Time T1
Measurement of the Spin-Spin Relaxation Time T2
13C NMR APT (Attached Proton Test)
13C DEPT- 45, 90 and135
Water Suppression by Presaturation
Water Suppression by the Jump and Return Method

Multinuclear Multidimensional NMR Spectroscopy

2D Homonuclear Correlation Experiments: COSY-Experiment and its variants, NOESY, ROESY, TOCSY.
2D Heteronuclear Correlation Experiments: HETCOR, COLOC, HMQC, HSQC, HSQC-DEPT, HMBC.

NMR Spectroscopy with Pulsed Field Gradients

Measurement of Diffusion Constant using the Pulsed Gradient Spin-Echo Experiment
WATERGATE (water suppression experiment)
Water Suppression by Excitation Sculpting
Plus all the Gradient-Selected Multidimensional Experiments like gs-COSY, gs-TOCSY, gs-NOESY, gs-HSQC, gs-HMBC, etc. 

For training, please contact Roberto Gil (rgil@andrew.cmu.edu), MI Room 302, telephone: x8-4313