NMR paper 1H, 15N and 13C NMR assignments, secondary structure and overall topology of the Esch

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[NMR paper] 1H, 15N and 13C NMR assignments, secondary structure and overall topology of the Esch

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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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08-22-2010, 03:03 PM

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1H, 15N and 13C NMR assignments, secondary structure and overall topology of the Esch

1H, 15N and 13C NMR assignments, secondary structure and overall topology of the Escherichia coli GlgS protein.

Related Articles 1H, 15N and 13C NMR assignments, secondary structure and overall topology of the Escherichia coli GlgS protein.

Eur J Biochem. 1997 Jun 1;246(2):301-10

Authors: Beglova N, Fischer D, Hengge-Aronis R, Gehring K

GlgS is a 7892-Da protein which is involved in glycogen biosynthesis in bacteria. We report the 1H, 15N and 13C NMR assignments of the backbone and side-chain resonances at 25 degrees C and pH 6.7 from two-dimensional homonuclear and three-dimensional heteronuclear NMR experiments. The secondary structure of the protein was determined using sequential and medium-range NOE correlations, vicinal 3J(NH-H alpha) coupling values and amide proton exchange rates. The secondary structure obtained is consistent with the secondary chemical shifts of 1H alpha, 13C alpha and 13C = O. It was found that the secondary structure of GlgS comprises two amphipathic helices (Asn10-Met21 and Glu39-Arg60), one short highly hydrophobic helix (Ile30-Val33), a short extended beta-strand-like fragment (Arg26-Asp29) and two type I beta-turns (His22-Gly25 and Thr34-Met37). An overall topology of GlgS is suggested based on long-range NOEs. The elements of secondary structure form a sandwich in which the beta-strand and the short hydrophobic helix are positioned between the two amphipathic helices.

PMID: 9208918 [PubMed - indexed for MEDLINE]

Source: PubMed

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