Hub Proteins
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Estudos iniciais de ineraçãos da HSP90 através da caracterização funcioanl de um transgênico e biofísica de uma co-chaperona / Insights on Hsp90 chaperone interactions using transgenic and biophysical approaches
Chaperonas moleculares (Heat Shock proteins - HSPs) são componentes chave do sistema de controle de qualidade de proteínas (PQC - Protein Quality Control), que é essencial para a vida, sendo responsável por manter a homeostase proteica e a adequada função de diversas vias. Problemas no processo de enovelamento estão relacionados a doenças degenerativ
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2012
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2. Estudos estruturais e funcionais das proteínas cinases humanas Nek1 e Nek6 / Structural and functional studies of Nek1 Nek6 protein kinases
NIMA was identified and functionally characterized in Aspergillus nidulans as a critical Ser/Thr kinase for cell cycle progression. The mammalian Neks (NIMA-related kinases) represent an evolutionarily conserved family of 11 serine/threonine kinases that share 40-45% identity with NIMA N-terminal domain. Neks are associated to cell cyclerelated functions and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/03/2011
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3. Evolving nature of the AP2 α-appendage hub during clathrin-coated vesicle endocytosis
Clathrin-mediated endocytosis involves the assembly of a network of proteins that select cargo, modify membrane shape and drive invagination, vesicle scission and uncoating. This network is initially assembled around adaptor protein (AP) appendage domains, which are protein interaction hubs. Using crystallography, we show that FxDxF and WVxF peptide motifs f
Nature Publishing Group.
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4. Mammalian ELAV-like neuronal RNA-binding proteins HuB and HuC promote neuronal development in both the central and the peripheral nervous systems
Hu proteins are mammalian embryonic lethal abnormal visual system (ELAV)-like neuronal RNA-binding proteins that contain three RNA recognition motifs. Although Drosophila ELAV is required for the correct differentiation and survival of neurons, the roles played by the Hu genes in the mammalian nervous system remain largely unknown. To explore the in vivo fun
The National Academy of Sciences.
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5. Molecular dimension explored in evolution to promote proteomic complexity
The architecture of present-day protein interaction networks depends on how protein associations evolved. Here, we explore how and why evolution-related mutations influence protein structure to promote protein associations, and thereby network development. We specifically address two questions: (i) How can protein folds remain conserved while proteins accomm
National Academy of Sciences.
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6. Processing of the Tail Lysozyme (gp5) of Bacteriophage T4
The processing site of gp5 has been determined to be between residues Val-390 and His-391, instead of Ser-351 and Ala-352 as previously reported (H. Kanamaru, N. C. Gassner, N. Ye, S. Takeda, and F. Arisaka, J. Bacteriol. 181:2739-2744). Moreover, the maturation of gp5 is abolished by null mutations in other hub genes, indicating that cleavage requires the i
American Society for Microbiology.
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7. The active spatial organization of the β-globin locus requires the transcription factor EKLF
Three-dimensional organization of a gene locus is important for its regulation, as recently demonstrated for the β-globin locus. When actively expressed, the cis-regulatory elements of the β-globin locus are in proximity in the nuclear space, forming a compartment termed the Active Chromatin Hub (ACH). However, it is unknown which proteins are involved in
Cold Spring Harbor Laboratory Press.
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8. RefSeq and LocusLink: NCBI gene-centered resources
Thousands of genes have been painstakingly identified and characterized a few genes at a time. Many thousands more are being predicted by large scale cDNA and genomic sequencing projects, with levels of evidence ranging from supporting mRNA sequence and comparative genomics to computing ab initio models. This, coupled with the burgeoning scientific lite
Oxford University Press.
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9. Increase of the RNA-binding protein HuD and posttranscriptional up-regulation of the GAP-43 gene during spatial memory
Neuronal ELAV-like proteins (HuB, HuC, and HuD) are highly conserved RNA-binding proteins able to selectively associate with the 3′ UTR of a subset of target mRNAs and increase their cytoplasmic stability and rate of translation. We previously demonstrated the involvement of these proteins in learning, reporting that they undergo a sustained up-regulation
National Academy of Sciences.
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10. Posttranscriptional regulation of gene expression in learning by the neuronal ELAV-like mRNA-stabilizing proteins
The view that memory is encoded by variations in the strength of synapses implies that long-term biochemical changes take place within subcellular microdomains of neurons. These changes are thought ultimately to be an effect of transcriptional regulation of specific genes. Localized changes, however, cannot be fully explained by a purely transcriptional
The National Academy of Sciences.
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11. Neuronal ELAV proteins enhance mRNA stability by a PKCα-dependent pathway
More than 1 in 20 human genes bear in the mRNA 3′ UTR a specific motif called the adenine- and uridine-rich element (ARE), which posttranscriptionally determines its expression in response to cell environmental signals. ELAV (embryonic lethal abnormal vision) proteins are the only known ARE-binding factors that are able to stabilize the bound mRNAs, thereb
National Academy of Sciences.
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12. Palmitoylation of the HIV-1 envelope glycoprotein is critical for viral infectivity
Recent studies suggest that HIV-1 budding occurs selectively from detergent-insoluble membrane domains, referred to as lipid rafts. Palmitoylation is thought to be one of the factors responsible for targeting membrane proteins to lipid rafts. The cytoplasmic domain of the HIV-1 envelope glycoprotein (gp160) contains two palmitoylated cysteine residues.
The National Academy of Sciences.