NMR paper Analysis of a Plasmodium falciparum EBA-175 peptide with high binding capacity to ery

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[NMR paper] Analysis of a Plasmodium falciparum EBA-175 peptide with high binding capacity to ery

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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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11-24-2010, 09:01 PM

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Analysis of a Plasmodium falciparum EBA-175 peptide with high binding capacity to ery

Analysis of a Plasmodium falciparum EBA-175 peptide with high binding capacity to erythrocytes and their analogues using 1H NMR.

Related Articles Analysis of a Plasmodium falciparum EBA-175 peptide with high binding capacity to erythrocytes and their analogues using 1H NMR.

J Struct Biol. 2003 Feb;141(2):115-21

Authors: Cifuentes G, Guzmán F, Alba MP, Salazar LM, Patarroyo ME

A 175-erythrocyte-binding protein (EBA-175) conserved high-activity binding peptide (HABP), called 1783 (nonimmunogenic, nonprotective against Plasmodium falciparum malaria), was analyzed for antigenic and protective activity in Aotus monkeys, together with several of its analogues. 1H NMR studies of peptides 17912, 14016, and 22814 allowed their structure to be related to their biological function. These peptides showed helical regions having differences in their position and length. Nonimmunogenic, nonprotective peptides 1783 and 17912 showed an extensive helical region, while the 22814 immunogenic protective peptide's alpha-helix was found in the N-terminal region. This suggests that the more flexible C-terminal region will allow better interaction between these peptides and immune system molecules as well as relating these peptides' three-dimensional structure to their immunogenicity and protective activity, thus leading to a more rational development of the new malaria multicomponent vaccine.

PMID: 12615537 [PubMed - indexed for MEDLINE]

Source: PubMed

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