NMR paper NMR studies of CCK-8/CCK1 complex support membrane-associated pathway for ligand-rece

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[NMR paper] NMR studies of CCK-8/CCK1 complex support membrane-associated pathway for ligand-rece

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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, 08:49 PM

nmrlearner

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NMR studies of CCK-8/CCK1 complex support membrane-associated pathway for ligand-rece

NMR studies of CCK-8/CCK1 complex support membrane-associated pathway for ligand-receptor interaction.

Related Articles NMR studies of CCK-8/CCK1 complex support membrane-associated pathway for ligand-receptor interaction.

Can J Physiol Pharmacol. 2002 May;80(5):383-7

Authors: Giragossian C, Pellegrini M, Mierke DF

The interaction of peptide ligands with their associated G-protein-coupled receptors has been examined by a number of different experimental approaches over the years. We have been developing an approach utilizing high-resolution NMR to determine the structural features of the peptide ligand, well-designed fragments of the receptor, and the ligand-receptor complexes formed upon titration of the peptide hormone. The results from these investigations provide evidence for a membrane-associated pathway for the initial interaction of peptide ligands with the receptor. Here, our results from the investigation of the interaction of CCK-8 with the CCK1 receptor are described. Our spectroscopic results clearly show that both CCK-8 and the regions of CCK1 with which it interacts are closely associated with the zwitterionic interface of the lipids utilized in our solution spectroscopic studies.

PMID: 12056543 [PubMed - indexed for MEDLINE]

Source: PubMed

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