NMR paper 1H NMR sequential assignments and identification of secondary structural elements in

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[NMR paper] 1H NMR sequential assignments and identification of secondary structural elements in

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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

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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

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NMR sample preparation:

Protein disorder:

DisMeta

Protein solubility:

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Solid-state NMR:

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08-21-2010, 11:41 PM

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1H NMR sequential assignments and identification of secondary structural elements in

1H NMR sequential assignments and identification of secondary structural elements in oxidized putidaredoxin, an electron-transfer protein from Pseudomonas.

Related Articles 1H NMR sequential assignments and identification of secondary structural elements in oxidized putidaredoxin, an electron-transfer protein from Pseudomonas.

Biochemistry. 1992 Feb 25;31(7):1961-8

Authors: Ye XM, Pochapsky TC, Pochapsky SS

Sequential 1H resonance assignments and secondary structural features of putidaredoxin (Pdx), a 106-residue globular protein consisting of a single polypeptide chain and a [2Fe-2S] cluster, are reported. No crystal structure has been obtained for Pdx or for any closely homologous protein. The sequentially assigned resonances represent ca. 83% of all the protons in Pdx and a large majority of those protons which are unaffected by the paramagnetism of the iron-sulfur cluster. A total of three alpha-helices, two beta-sheets, and two type I beta-turns have been identified from NOE (nuclear Overhauser effect) patterns. Besides the extensive beta-sheet described previously, a second sheet is identified, consisting of two short antiparallel strands (Ile 89-Thr 91 and Val 21-Leu 23), one of which ends in a tight type I turn (Thr 91-Pro 92-Glu 93-Leu 94). One short helix (Ala 26-Gly 31) and a second longer helical region (Glu 54-Cys 73) are present. This second helical region is discontinuous, breaking at Pro 61, resuming at Glu 65, and ending at Cys 73. The functionally important C-terminal tryptophan residue has been identified, and some structural constraints on this residue are described. Previously reported functional data concerning Pdx are discussed in light of present structural information. Finally, approaches to the determination of a high-resolution solution structure of the protein are discussed.

PMID: 1536837 [PubMed - indexed for MEDLINE]

Source: PubMed

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