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Identification of Pctaire1 as a p35-interacting protein and a novel substrate for Cdk5 /Cheng, Kai. January 2003 (has links)
Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references (leaves 153-177). Also available in electronic version. Access restricted to campus users.
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Sphingosine as second messenger, sphingosine dependent protein kinases and their substrates /Megidish, Tamar, January 1998 (has links)
Thesis (Ph. D.)--University of Washington, 1998. / Vita. Includes bibliographical references (leaves [95]-101).
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Involvement of Cdk5/p35 in EphB2-dependent dendritic spine development /Wu, Qian. January 2008 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2008. / Includes bibliographical references (leaves 71-92). Also available in electronic version.
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Functional investigation of the neuronal Cdk5 activator p35 in the regulation of actin dynamics /Yu, Yan. January 2005 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2005. / Includes bibliographical references (leaves 108-113). Also available in electronic version.
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Identification of TrkB as a p35 interacting protein and a Cdk5 substrate /Chin, Wing Hong. January 2005 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2005. / Includes bibliographical references (leaves 108-125). Also available in electronic version.
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Design and synthesis of chemical probes for the protein kinase B PH domain /Nemeth, Joseph. January 2008 (has links)
Thesis (Ph.D.) - University of St Andrews, May 2008. / Restricted until 13th May 2009.
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ANKRA2 interacts with p35 and is a substrate for Cdk5/p35 /Ng, Kung Yau. January 2006 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2006. / Includes bibliographical references (leaves 73-84). Also available in electronic version.
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Characterization of p35, a neuronal activator of Cdk5, as a novel microtubule-associated protein /He, Lisheng. January 2007 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 128-149). Also available in electronic version.
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Function and regulation of the neuronal Cdk5/p35 kinase in the control of protein translation /Hou, Zhibo. January 2007 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 95-104). Also available in electronic version.
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Clonagem de promotores de cana-de-açúcar e análise do transcriptoma de genótipos segregantes para teor de sacarose / Cloning of sugarcane promoters and transcriptome analysis of genotypes segregating for sugar contentAndrade, Rodrigo Fandiño de 23 November 2012 (has links)
A cana-de-açúcar é uma gramínea com fotossíntese do tipo C4, com capacidade de acumular sacarose nos colmos em quantidades que excedem 50% de seu peso seco, característica única no reino vegetal (Moore, 1995). Sacarose e seu derivado mais importante, etanol, são dois produtos de grande importância mundial. Assim, o teor de sacarose em cana tem fundamental importância no aumento da produtividade dessas duas commodities. O melhoramento clássico parece ter alcançado seu limite, já que incrementos expressivos no teor de sacarose em novas variedades não têm sido observados e tudo aponta para a necessidade de estudos que levem a uma maior compreensão dos mecanismos moleculares associados à produção, transporte e acúmulo de sacarose em cana (Casu et al., 2005; Moore, 1995). Procurar seqüências promotoras de genes de interesse é importante para a obtenção de transgênicos, já que promotores constitutivos não apresentam resultados satisfatórios em cana (Lakshmanan et al., 2005). É também objetivo aqui hibridar mRNA de genótipos de cana-de-açúcar com segregação para acúmulo de sacarose, em uma plataforma customizada de oligos (Agilent), com aproximadamente 44k elementos, que compõe uma representatividade gênica não alcançada em esforços anteriores com microarranjos de cDNA. Genome walking foi a técnica utilizada na obtenção de regiões à montante do primeiro éxon, predito in silico, para três proteínas quinase de interesse, SASGMS11561, SASGMS16343 e SASGMS09047, que se mostraram moduladas em experimentos anteriores de hibridação com amostras segregantes para conteúdo de sacarose. Foi obtido sucesso nos três casos, tendo os fragmentos de DNA sido seqüenciados e oportunamente alinhados à montante dos correspondentes genes ortólogos em sorgo, bem como ao banco ainda em construção de contigs do genoma de cana-de-açúcar, obtidos por shotgun. A plataforma Agilent, com seus 43803 SAS únicos, mostrou-se uma ferramenta muito adequada para as hibridações de genótipos de mais alto Brix contra genótipos de mais baixo Brix. Um total de 569 genes diferencialmente expressos foram obtidos em pelo menos uma das três hibridações realizadas. Um grupo de genes, de diferentes categorias e perfis de modulação, foi validado por PCR em tempo real, obtendo uma taxa de aproximadamente 90%. Apesar do grande número de SAS diferencialmente expressos, por volta de 70% dos mesmos ainda se encontram não categorizados, seja por falta de similaridade de seqüência em bancos de dados de organismos próximos ou pela alta complexidade e esforço prático na cura desse processo de categorização manual. Assim, três fragmentos de seqüências promotoras para três proteínas quinase de interesse foram obtidos e seqüenciados, como parte dos esforços do grupo em formar um catálogo de promotores específicos para cana-de-açúcar. Um grupo de genes foi analisado dos resultados das hibridações por seus papéis relevantes nos processos que levam ao maior teor de sacarose em cana, devidamente corroborados por trabalhos do próprio grupo, bem como de outros / Sugarcane is a C4 plant with the unique characteristic of being capable of accumulating sucrose in its culms in quantities that exceed 50% of its dry weight (Moore, 1995). Sucrose and ethanol are highly valued products in the world of today. Sucrose content is a trait with fundamental importance in the on-going process of increasing productivity of these two sugarcane byproducts. Classic improvement of sugarcane seems to have reached its practical limits, given that it has become increasingly harder to obtain varieties with increased sugar content. This obstacle points towards the necessity of better comprehension of the molecular mechanisms associated to the production, transport and accumulation of sucrose in sugarcane (Casu et al., 2005; Moore, 1995). The search for promoter sequences of genes of interest is crucial for the production of transgenic lines, since the use of constitutive promoters in sugarcane has been highly problematic, leading to unsatisfactory results in most cases (Lakshmanan et al., 2005). Another objective was to hybridize sugarcane genotypes with contrasting sugar content in a customized Agilent oligo platform, containing approximately 44k elements, which signifies the best effort so far regarding gene representativeness. Genome walking was the chosen technique to obtain upstream regions of the first in silico predicted exon of three proteins kinases of interest, SASGMS11561, SASGMS16343 and SASGMS09047, all of them selected from previous hybridization experiments with contrasting sucrose content samples. Success was achieved in all three cases, and the obtained fragments were sequenced and aligned to their respective syntenic region on the sorghum genome as well as on contigs from an increasingly larger bank of genomic sugarcane sequences, from our group, which has been acquired using the shotgun sequencing method. The Agilent platform, with its 43803 unique sugarcane assembled sequences (SAS), has proven valuable as a powerful high scale tool for the hybridization of genotypes with contrasting Brix values (high versus low Brix). A total of 569 differentially expressed genes were obtained from at least one of the three experiments accomplished. A group of genes from different categories and modulation profiles was depicted and validated through real time PCR, with an approximate validation rate of 90%. Although the number of differentially expressed genes is high, around 70% of them is still uncategorized, mostly because of their unique identity and therefore lack of reference organisms to compare with and the high complexity and laboriousness of categorizing them manually. In summary, three promoter fragments from three different protein kinases of interest were obtained and sequenced, as a part of a greater effort to create a sugarcane promoter sequence catalogue. From the hybridization assays, a group of genes were analyzed, due to their putative importance in the processes that lead to a higher sucrose content in sugarcane, also corroborated by previous studies from our group as well as from others.
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