NMR paper Rigorous analysis of the interaction between proteins and low water-solubility drugs by qNMR-aided NMR titration experiments

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[NMR paper] Rigorous analysis of the interaction between proteins and low water-solubility drugs by qNMR-aided NMR titration experiments

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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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09-27-2021, 10:14 PM

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Rigorous analysis of the interaction between proteins and low water-solubility drugs by qNMR-aided NMR titration experiments

Rigorous analysis of the interaction between proteins and low water-solubility drugs by qNMR-aided NMR titration experiments

Drugs are designed and validated based on physicochemical data on their interactions with target proteins. For low water-solubility drugs, however, quantitative analysis is practically impossible without accurate estimation of precipitation. Here we combined quantitative NMR with NMR titration experiments to rigorously quantify the interaction of the low water-solubility drug pimecrolimus with its target protein FKBP12. Notably, the dissociation constants estimated with and without consideration...

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