NMR paper NMR mapping of the recombinant mouse major urinary protein I binding site occupied by

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[NMR paper] NMR mapping of the recombinant mouse major urinary protein I binding site occupied by

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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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11-18-2010, 08:31 PM

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NMR mapping of the recombinant mouse major urinary protein I binding site occupied by

NMR mapping of the recombinant mouse major urinary protein I binding site occupied by the pheromone 2-sec-butyl-4,5-dihydrothiazole.

Related Articles NMR mapping of the recombinant mouse major urinary protein I binding site occupied by the pheromone 2-sec-butyl-4,5-dihydrothiazole.

Biochemistry. 1999 Aug 3;38(31):9850-61

Authors: Zídek L, Stone MJ, Lato SM, Pagel MD, Miao Z, Ellington AD, Novotny MV

The interactions between the mouse major urinary protein isoform MUP-I and the pheromone 2-sec-butyl-4,5-dihydrothiazole have been characterized in solution. (15)N-labeled and (15)N, (13)C-doubly-labeled recombinant MUP-I were produced in a bacterial expression system and purified to homogeneity. Racemic 2-sec-butyl-4, 5-dihydrothiazole was produced synthetically. An equilibrium diffusion assay and NMR titration revealed that both enantiomers of the pheromone bind to the recombinant protein with a stoichiometry of 1 equiv of protein to 1 equiv of racemic pheromone. A micromolar dissociation constant and slow-exchange regime dissociation kinetics were determined for the pheromone-protein complex. (1)H, (15)N, and (13)C chemical shifts of MUP-I were assigned using triple resonance and (15)N-correlated 3D NMR experiments. Changes in protein (1)H(N) and (15)N(H) chemical shifts upon addition of pheromone were used to identify the ligand binding site. Several amide signals, corresponding to residues on one side of the binding site, were split into two peaks in the saturated protein-ligand complex. Similarly, two overlapping ligand spin systems were present in isotope-filtered NMR spectra of labeled protein bound to unlabeled pheromone. The two sets of peaks were attributed to the two possible chiralities of the pheromone. Intermolecular NOEs indicated that the orientation of the pheromone in the MUP-I binding cavity is opposite to that modeled in a previous X-ray structure.

PMID: 10433691 [PubMed - indexed for MEDLINE]

Source: PubMed

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