NMR paper LAT Transport Inhibitors from Pittosporum venulosum Identified by NMR Fingerprint Analysis.

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[NMR paper] LAT Transport Inhibitors from Pittosporum venulosum Identified by NMR Fingerprint Analysis.

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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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09-16-2015, 04:39 PM

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LAT Transport Inhibitors from Pittosporum venulosum Identified by NMR Fingerprint Analysis.

Related Articles LAT Transport Inhibitors from Pittosporum venulosum Identified by NMR Fingerprint Analysis.

J Nat Prod. 2015 Jun 26;78(6):1215-20

Authors: Grkovic T, Pouwer RH, Wang Q, Guymer GP, Holst J, Quinn RJ

Abstract
(1)H NMR fingerprints were used as the guiding principle for the isolation of minor compounds related to the l-type amino acid transporter inhibitors venulosides A (1) and B (2). Two new monoterpene glycosides, namely, venulosides C (3) and D (4), were isolated from a Queensland collection of the plant Pittosporum venulosum. Compounds 3 and 4 were found to inhibit l-leucine transport in LNCaP cells with IC50 values of 11.47 and 39.73 ?M, respectively. The venulosides are the first reported natural product inhibitors of leucine transport in prostate cancer cells, and the isolation of the minor compounds provides some early SAR information.

PMID: 25984885 [PubMed - indexed for MEDLINE]

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