NMR paper NMR analysis of in vitro-synthesized proteins without purification: a high-throughput

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[NMR paper] NMR analysis of in vitro-synthesized proteins without purification: a high-throughput

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NMR processing:

MDD

NMR assignment:

Backbone:

Side-chains:

NOEs:

Structure from NMR restraints:

Ab initio:

Fragment-based:

Rosetta-NMR (Robetta)

Template-based:

GeNMR

I-TASSER

Refinement:

Amber

Structure from chemical shifts:

Fragment-based:

Homology-based:

Torsion angles from chemical shifts:

Preditor

TALOS

Promega- Proline

Secondary structure from chemical shifts:

CSI (via RCI server)

TALOS

MICS caps, β-turns

d2D

PECAN

Flexibility from chemical shifts:

RCI

Interactions from chemical shifts:

HADDOCK

Chemical shifts re-referencing:

NMR model quality:

NOEs, other restraints:

Chemical shifts:

RDCs:

Pseudocontact shifts:

Protein geomtery:

SAVES2 or SAVES4

Quality Control Check

NMR spectrum prediction:

FANDAS

MestReS

V-NMR

Flexibility from structure:

Backbone S2

Methyl S2

B-factor

Molecular dynamics:

Gromacs

Amber

Antechamber

Chemical shifts prediction:

From structure:

Shiftx2

Sparta+

Camshift

CH3shift- Methyl

ArShift- Aromatic

ShiftS

Proshift

PPM

CheShift-2- Cα

From sequence:

Shifty

Camcoil

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:

DisMeta

Protein solubility:

Isotope labeling:

Solid-state NMR:

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11-24-2010, 08:58 PM

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NMR analysis of in vitro-synthesized proteins without purification: a high-throughput

NMR analysis of in vitro-synthesized proteins without purification: a high-throughput approach.

Related Articles NMR analysis of in vitro-synthesized proteins without purification: a high-throughput approach.

FEBS Lett. 2002 Jul 31;524(1-3):159-62

Authors: Guignard L, Ozawa K, Pursglove SE, Otting G, Dixon NE

A cell-free protein expression system was established that provides protein samples of adequate concentration and purity for direct NMR analysis. The Escherichia coli peptidyl-prolyl cis-trans isomerase PpiB was expressed in this system with dual amino acid-selective isotope labeling to identify the NMR signal from the active site-residue Arg87. Addition of the substrate succinyl-Ala-Ala-Pro-Phe-p-nitroanilide selectively shifted its (15)N-HSQC cross peak, confirming binding to the active site. As cell-free protein expression provides high yields of protein per unit mass of labeled amino acid and sample handling is minimal, this strategy presents an exceptionally inexpensive and rapid approach to protein analysis.

PMID: 12135760 [PubMed - indexed for MEDLINE]

Source: PubMed

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