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Nucleation precursors in protein crystallization [PDF]
Acta Crystallographica Section F Structural Biology Communications, 2014 Protein crystal nucleation is a central problem in biological crystallography and other areas of science, technology and medicine. Recent studies have demonstrated that protein crystal nuclei form within crucial precursors. Here, methods of detection and characterization of the precursors are reviewed: dynamic light scattering, atomic force microscopy ...
Peter G. Vekilov, Maria A. Vorontsova
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Chloroplast precursor protein translocon [PDF]
FEBS Letters, 1999 Chloroplasts are believed to have originated from a photosynthetic, prokaryotic ancestor. As the result of endosymbiotic evolution, most of the genes of the endocytobiont were displaced to the host nucleus. Today's chloroplasts must import most of their proteins from the cytosol as precursors.
Jürgen Soll, Timo May
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Biology and pathophysiology of the amyloid precursor protein [PDF]
Molecular Neurodegeneration, 2011 The amyloid precursor protein (APP) plays a central role in the pathophysiology of Alzheimer's disease in large part due to the sequential proteolytic cleavages that result in the generation of β-amyloid peptides (Aβ). Not surprisingly, the biological properties of APP have also been the subject of great interest and intense investigations.
Zheng, Hui, Koo, Edward H
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In Silico Evidence That Protein Unfolding is a Precursor of Protein Aggregation [PDF]
ChemPhysChem, 2020 AbstractWe present a computational study on the folding and aggregation of proteins in an aqueous environment, as a function of its concentration. We show how the increase of the concentration of individual protein species can induce a partial unfolding of the native conformation without the occurrence of aggregates.
Valentino Bianco +2 more
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Neuroprotective Secreted Amyloid Precursor Protein Acts by Disrupting Amyloid Precursor Protein Dimers [PDF]
Journal of Biological Chemistry, 2009 The amyloid precursor protein (APP) is implied both in cell growth and differentiation and in neurodegenerative processes in Alzheimer disease. Regulated proteolysis of APP generates biologically active fragments such as the neuroprotective secreted ectodomain sAPPalpha and the neurotoxic beta-amyloid peptide.
Gralle, M. +2 more
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The neuroendocrine polypeptide 7B2 is a precursor protein. [PDF]
Journal of Biological Chemistry, 1990 The neuroendocrine protein 7B2 is highly conserved and widely present in neurons and endocrine cells. It is coexpressed with the prohormone proopiomelanocortin (POMC) in the intermediate lobe of the pituitary gland of Xenopus laevis. To study the biosynthesis of 7B2 in this amphibian, an anti-7B2 monoclonal antibody was used in immunoprecipitation ...
Ayoubi, T.A. +6 more
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Amyloid precursor protein and amyloid precursor-like protein 2 in cancer
Oncotarget, 2016 Amyloid precursor protein (APP) and its family members amyloid precursor-like protein 1 (APLP1) and amyloid precursor-like protein 2 (APLP2) are type 1 transmembrane glycoproteins that are highly conserved across species. The transcriptional regulation of APP and APLP2 is similar but not identical, and the cleavage of both proteins is regulated by ...
Joyce C. Solheim +13 more
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Mitochondrial import receptors for precursor proteins [PDF]
Trends in Biochemical Sciences, 1991 The specific targeting of precursor proteins synthesized in the cytosol to various cell organelles is a central aspect of intracellular protein traffic. Several hundred different proteins are imported from the cytosol into the mitochondria. Recent studies have identified the mitochondrial outer membrane proteins MOM19, MOM72, MOM38 (approximately ISP42)
Pfanner, Nikolaus +2 more
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AMYPdb: A database dedicated to amyloid precursor proteins [PDF]
BMC Bioinformatics, 2008 Abstract Background Misfolding and aggregation of proteins into ordered fibrillar structures is associated with a number of severe pathologies, including Alzheimer's disease, prion diseases, and type II diabetes. The rapid accumulation of knowledge about the sequences and structures of these proteins allows using of ...
Le Béchec, Antony +2 more
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Heteromers of amyloid precursor protein in cerebrospinal fluid [PDF]
Molecular Neurodegeneration, 2015 Soluble fragments of the amyloid precursor protein (APP) generated by α- and β-secretases, sAPPα and sAPPβ, have been postulated as promising new cerebrospinal fluid (CSF) biomarkers for the clinical diagnosis of Alzheimer's disease (AD). However, the capacity of these soluble proteins to assemble has not been explored and could be relevant. Our aim is
Cuchillo-Ibáñez, Inmaculada +6 more
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