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NMR processing:
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NOEs:
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Structure from NMR restraints:
Ab initio:
GeNMR
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Fragment-based:
BMRB CS-Rosetta
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Refinement:
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Structure from chemical shifts:
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WeNMR CS-Rosetta
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Torsion angles from chemical shifts:
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Secondary structure from chemical shifts:
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Flexibility from chemical shifts:
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Chemical shifts re-referencing:
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NMR model quality:
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SAVES2 or SAVES4
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Chemical shifts prediction:
From structure:
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PPM
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From sequence:
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Poulsen_rc_CS
Disordered proteins:
MAXOCC
Format conversion & validation:
CCPN
From NMR-STAR 3.1
Validate NMR-STAR 3.1
NMR sample preparation:
Protein disorder:
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Protein solubility:
camLILA
ccSOL
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camGroEL
Zyggregator
Isotope labeling:
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Solid-state NMR:
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Default Answered: Why do we need to use large magnets and not simply the earth's magnetic field to measure an NMR spectrum?

Why do we need to use large magnets and not simply the earth's magnetic field to measure an NMR spectrum?
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Best Answer - Posted by Mark R5084
The magnetic fields used in NMR are also VERY homogeneous and directional which allows us to get a few of those little protons to line up just right so they split according to a boltzman distribution into the alpha and beta states, with and against the applied magnetic field respectively and this allows us to flip their spin states from low to high and measure the subtle differences in their energies when they relax.

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Default Why do we need to use large magnets and not simply the earth's magnetic field to measure an NMR spectrum?

The Earth's magnetic field isn't strong enough.
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Default Why do we need to use large magnets and not simply the earth's magnetic field to measure an NMR spectrum?

The magnetic fields used in NMR are also VERY homogeneous and directional which allows us to get a few of those little protons to line up just right so they split according to a boltzman distribution into the alpha and beta states, with and against the applied magnetic field respectively and this allows us to flip their spin states from low to high and measure the subtle differences in their energies when they relax.

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