Expression, purification, and reconstitution of the transmembrane domain of the human amyloid precursor protein for NMR studies.
Protein Expr Purif. 2011 Aug 31;
Authors: Chen W, Gamache E, Richardson D, Du Z, Wang C
Abstract
Alzheimer's disease (AD) is the most common type of dementia in elderly people. Senile plaques, a pathologic hallmark of AD, are composed of amyloid ? peptide (A?). A? aggregation produces toxic oligomers and fibrils, causing neuronal dysfunction and memory loss. A? is generated from two sequential proteolytic cleavages of a membrane protein, amyloid precursor protein (APP), by ?- and ?-secretases. The transmembrane (TM) domain of APP, APPTM, is the substrate of ?-secretase for A? production. The interaction between APPTM and ?-secretase determines the production of different species of A?. Although numerous experimental and theoretical studies of APPTM structure exist, experimental 3D structure of APPTM has not been obtained at atomic resolution. Using the pETM41 vector, we successfully expressed an MBP-APPTM fusion protein. By combining Ni-NTA chromatography, TEV protease cleavage, and reverse phase HPLC (RP-HPLC), we purified isotopically-labeled APPTM for NMR studies. The reconstitution of APPTM into micelles yielded high quality 2D (15)N-(1)H HSQC spectra. This reliable method for APPTM expression and purification lays a good foundation for future structural studies of APPTM using NMR.
PMID: 21907289 [PubMed - as supplied by publisher]
Expression and purification of myristoylated matrix protein of Mason-Pfizer monkey virus for NMR and MS measurements.
Expression and purification of myristoylated matrix protein of Mason-Pfizer monkey virus for NMR and MS measurements.
Expression and purification of myristoylated matrix protein of Mason-Pfizer monkey virus for NMR and MS measurements.
Protein Expr Purif. 2011 May 24;
Authors: Prchal J, Junkova P, Strmiskova M, Lipov J, Hynek R, Ruml T, Hrabal R
Matrix proteins play multiple roles both in early and late stages of the viral replication cycle. Their N-terminal myristoylation is important for interaction with the host cell membrane during virus...
nmrlearner
Journal club
0
06-07-2011 11:05 AM
Expression and purification of (15)N- and (13)C-isotope labeled 40-residue human Alzheimer's ?-amyloid peptide for NMR-based structural analysis.
Expression and purification of (15)N- and (13)C-isotope labeled 40-residue human Alzheimer's ?-amyloid peptide for NMR-based structural analysis.
Expression and purification of (15)N- and (13)C-isotope labeled 40-residue human Alzheimer's ?-amyloid peptide for NMR-based structural analysis.
Protein Expr Purif. 2011 May 27;
Authors: Long F, Cho W, Ishii Y
Amyloid fibrils of Alzheimer's ?-amyloid peptide (A?) are a primary component of amyloid plaques, a hallmark of Alzheimer's disease (AD). Enormous attention has been given to the structural...
nmrlearner
Journal club
0
06-07-2011 11:05 AM
Bacterial expression, purification, and model membrane reconstitution of the transmembrane and cytoplasmic domains of the human APP binding protein LR11/SorLA for NMR studies.
Bacterial expression, purification, and model membrane reconstitution of the transmembrane and cytoplasmic domains of the human APP binding protein LR11/SorLA for NMR studies.
Bacterial expression, purification, and model membrane reconstitution of the transmembrane and cytoplasmic domains of the human APP binding protein LR11/SorLA for NMR studies.
Protein Expr Purif. 2011 Feb 11;
Authors: Wang X, Gill Jr RL, Zhu Q, Tian F
LR11 (SorLA) is a recently identified neuronal protein that interacts with amyloid precursor protein (APP), a central player...
nmrlearner
Journal club
0
02-16-2011 07:40 PM
Evidence from solid-state NMR for nonhelical conformations in the transmembrane domain of the amyloid precursor protein.
Evidence from solid-state NMR for nonhelical conformations in the transmembrane domain of the amyloid precursor protein.
Evidence from solid-state NMR for nonhelical conformations in the transmembrane domain of the amyloid precursor protein.
Biophys J. 2011 Feb 2;100(3):711-9
Authors: Lu JX, Yau WM, Tycko R
The amyloid precursor protein (APP) is subject to proteolytic processing by ?-secretase within neuronal membranes, leading to Alzheimer's disease-associated ?-amyloid peptide production by cleavage near the midpoint of the*single...
[NMR paper] Expression screening, protein purification and NMR analysis of human protein domains
Expression screening, protein purification and NMR analysis of human protein domains for structural genomics.
Related Articles Expression screening, protein purification and NMR analysis of human protein domains for structural genomics.
J Struct Funct Genomics. 2004;5(1-2):119-31
Authors: Folkers GE, van Buuren BN, Kaptein R
Structural genomics, the determination of protein structures on a genome-wide scale, is still in its infancy for eukaryotes due to the number and size of their genes. Low protein expression and solubility of eukaryotic...
nmrlearner
Journal club
0
11-24-2010 09:25 PM
[NMR paper] Expression, purification, crystallization, and NMR studies of the helicase interactio
Expression, purification, crystallization, and NMR studies of the helicase interaction domain of Escherichia coli DnaG primase.
Related Articles Expression, purification, crystallization, and NMR studies of the helicase interaction domain of Escherichia coli DnaG primase.
Protein Expr Purif. 2004 Feb;33(2):304-10
Authors: Loscha K, Oakley AJ, Bancia B, Schaeffer PM, Prosselkov P, Otting G, Wilce MC, Dixon NE
In Escherichia coli, the DnaG primase is the RNA polymerase that synthesizes RNA primers at replication forks. It is composed of three...
nmrlearner
Journal club
0
11-24-2010 09:25 PM
[NMR paper] Phosphorylation-induced structural changes in the amyloid precursor protein cytoplasm
Phosphorylation-induced structural changes in the amyloid precursor protein cytoplasmic tail detected by NMR.
Related Articles Phosphorylation-induced structural changes in the amyloid precursor protein cytoplasmic tail detected by NMR.
J Mol Biol. 2001 Mar 30;307(3):871-84
Authors: Ramelot TA, Nicholson LK
The cytoplasmic tail of the amyloid precursor protein (APPc) interacts with several cellular factors implicated in intracellular signaling or proteolytic production of amyloid beta peptide found in senile plaques of Alzheimer's disease...
Expression, purification, and reconstitution of the transmembrane domain of the human amyloid precursor protein for NMR studies.
Linear Mode
