Consulta: subjectFacets:"Transcription factor"
Registros recuperados: 9
Data/hora: 11/06/2024 12:40:57

Expression of RsMYB1 in chrysanthemum regulates key anthocyanin biosynthetic genes
Provedor de dados: 69
Autores: Naing,Aung Htay; Ai,Trinh Ngoc; Jeon,Su Min; Park,Kyeung Il; Lim,Ki Byung; Kim,Chang Kil.
Background Several MYB genes belonging to R2R3 MYB transcription factors have been used in several plant species to enhance anthocyanin production, and have shown various expression or regulation patterns. This study focused on the effect of ectopic expression of an RsMYB1 isolated from radish (Raphanus sativa) on chrysanthemum cv. ‘Shinma'. Results The RT-PCR results confirmed that RsMYB1 regulated the expression of three key biosynthetic genes (CmF3H, CmDFR, and CmANS) that are responsible for anthocyanin production in transgenic chrysanthemum, but were not detected in the non-transgenic line. In all transgenic plants, higher expression levels of key biosynthetic genes were observed in flowers than in leaves. However, the presence of RsMYB1 in...
Tipo: Journal article
Palavras-chave: Anthocyanin; Chrysanthemum; Morphology; RT- PCR; Transcription factor.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000500006

Rapamycin pre-treatment abrogates Tumour Necrosis Factor-&amp;#945; down-regulatory effects on LXR-Î± and PXR mRNA expression via inhibition of c-Jun N-terminal kinase 1 activation in HepG2 cells
Provedor de dados: 69
Autores: Ng,Di-Lin; Tie,Shin-Wei; Ong,Pei-Chin; Lim,Wyi-Sian; Tengku-Muhammad,Tengku-Sifzizul; Choo,Quok-Cheong; Chew,Choy-Hoong.
The Liver X Receptor (LXR) and Pregnane X Receptor (PXR) are members of the nuclear receptor superfamily. Previously, they have been classified as important regulators of lipid homeostasis. However, recent studies have shown that they may be implicated in anti-inflammatory responses as well. This study shows that Tumour Necrosis Factor-Î± (TNF-Î±) treatment reduces both LXR-Î± and PXR mRNA expression. However, pre-treatment with rapamycin, an mTOR inhibitor, followed by TNF-Î± stimulation, significantly induces LXR-Î± and PXR mRNA expression to ~17- and ~2-fold, respectively. This suggests that mTORC1, a multi-molecular complex of which mTOR is a member, may act as a negative regulator that inhibits the induction of LXR-Î± and PXR as anti-inflammatory...
Tipo: Journal article
Palavras-chave: Akt; C-Jun; Homeostasis; Inflammation; MKK7; Transcription factor.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000300008

Overall picture of expressed Heat Shock Factors in Glycine max, Lotus japonicus and Medicago truncatula
Provedor de dados: 74
Autores: Soares-Cavalcanti,Nina M.; Belarmino,Luís C; Kido,Ederson A.; Pandolfi,Valesca; Marcelino-Guimarães,Francismar C.; Rodrigues,Fabiana A.; Pereira,Gonçalo A.G.; Benko-Iseppon,Ana M.
Heat shock (HS) leads to the activation of molecular mechanisms, known as HS-response, that prevent damage and enhance survival under stress. Plants have a flexible and specialized network of Heat Shock Factors (HSFs), which are transcription factors that induce the expression of heat shock proteins. The present work aimed to identify and characterize the Glycine max HSF repertory in the Soybean Genome Project (GENOSOJA platform), comparing them with other legumes (Medicago truncatula and Lotus japonicus) in view of current knowledge of Arabidopsis thaliana. The HSF characterization in leguminous plants led to the identification of 25, 19 and 21 candidate ESTs in soybean, Lotus and Medicago, respectively. A search in the SuperSAGE libraries revealed 68...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HSF; Fabaceae; Bioinformatics; Abiotic stress; Transcription factor.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000200006

Molecular cloning and characterization of a novel freezing-inducible DREB1/CBF transcription factor gene in boreal plant Iceland poppy (Papaver nudicaule)
Provedor de dados: 74
Autores: Huang,Zhuo; He,Jiao; Zhong,Xiao-Juan; Guo,Han-Du; Jin,Si-Han; Li,Xi; Sun,Ling-Xia.
Abstract DREB1 of the AP2/ERF superfamily plays a key role in the regulation of plant response to low temperatures. In this study, a novel DREB1/CBF transcription factor, PnDREB1, was isolated from Iceland poppy (Papaver nudicaule), a plant adaptive to low temperature environments. It is homologous to the known DREB1s of Arabidopsis and other plant species. It also shares similar 3D structure, and conserved and functionally important motifs with DREB1s of Arabidopsis. The phylogenetic analysis indicated that the AP2 domain of PnDREB1 is similar to those of Glycine max, Medicago truncatula, and M. sativa. PnDREB1 is constitutively expressed in diverse tissues and is increased in roots. qPCR analyses indicated that PnDREB1 is significantly induced by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DREB1; Expression profile; Freezing stress; Iceland poppy; Transcription factor.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000400616

Genome-wide identification and phylogenetic analysis of the ERF gene family in cucumbers
Provedor de dados: 74
Autores: Hu,Lifang; Liu,Shiqiang.
Members of the ERF transcription-factor family participate in a number of biological processes, viz., responses to hormones, adaptation to biotic and abiotic stress, metabolism regulation, beneficial symbiotic interactions, cell differentiation and developmental processes. So far, no tissue-expression profile of any cucumber ERF protein has been reported in detail. Recent completion of the cucumber full-genome sequence has come to facilitate, not only genome-wide analysis of ERF family members in cucumbers themselves, but also a comparative analysis with those in Arabidopsis and rice. In this study, 103 hypothetical ERF family genes in the cucumber genome were identified, phylogenetic analysis indicating their classification into 10 groups, designated I to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis sativus L.; ERF; Phylogenetic analysis; Transcription factor; Genome sequence.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400015

Etude des facteurs de transcription impliqués dans l’accumulation lipidique en condition de stress azoté chez la microalgue haptophyte Isochrysis affinis galbana
Provedor de dados: 5
Autores: Thiriet-rupert, Stanislas.
In every organism, evolution and acclimation to environmental changes are orchestrated by numerous molecular players. Among them, transcription factors (TFs) play a crucial role by regulating gene expression. Therefore, identify TFs involved in the production of high value products is a significant step in a biotechnological context. The laboratory has at its disposal a mutant strain of the haptophyte microalga Tisochrysis lutea producing twice more storage lipids than the wild type strain when exposed to nitrogen deprivation. Given the key role of TFs in phenotype establishment, this PhD aim at identify the TFs involved in that of the mutant phenotype of T. lutea. A TFs identification and classification pipeline was elaborated and applied to T. lutea’s...
Tipo: Text
Palavras-chave: Bioinformatique; Biologie moléculaire; Évolution; Facteur de transcription; Micro-algue; Réseau de gènes; RNA-seq; Bioinformatic; Evolution; Gene network; Molecular biology; Microalgae; RNAseq; Transcription factor.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00371/48233/48368.pdf

Identification of transcription factors involved in the phenotype of a domesticated oleaginous microalgae strain of Tisochrysis lutea
Provedor de dados: 5
Autores: Thiriet-rupert, Stanislas; Carrier, Gregory; Trottier, Camille; Eveillard, D.; Schoefs, B.; Bougaran, Gael; Cadoret, Jean-paul; Chenais, B.; Saint-jean, Bruno.
Microalgae are an outstanding source of high value products with applications in food, feed or biofuel production. Among these promising organisms, the haptophyte Tisochrysis lutea is commonly used as a feed for shellfish and shrimps in aquaculture. Its capacity to produce high amounts of docosahexanoic acid and storage lipids is also of economic interest for nutrition and energy production. Consequently, understanding its lipid accumulation under nitrogen deprivation is of major interest. Here, we aimed to identify Transcription Factors (TFs) involved in the establishment of the mutant phenotype of the 2Xc1 strain of T. lutea, which accumulates double the quantity of storage lipids under nitrogen deprivation than the wild type strain (WTc1). Strains were...
Tipo: Text
Palavras-chave: Algae; Carbohydrates; Gene co-expression network; Lipids; Transcription factor; Tisochrysis lutea.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00418/52973/53901.pdf

Alternative Transcription of Peroxisome Proliferator-Activated Receptor Gamma in the Liver Is Associated with Fatness of Chickens
Provedor de dados: 89
Autores: Parada,R; Malewski,T; Jaszczak,K; Kawka,M.
ABSTRACT The expression of four transcription variant of peroxisome proliferator-activated receptor gamma gene (PPARG) (XM_015292931.1; XM_015292932.1; XM_015292933.1 and NM_001001460.1) in the liver of broilers was measured and its correlation with abdominal fat weight and relative abdominal fat content was investigated. The study was conducted with 92 slow-growing crossbred chickens (Cobb males x indigenous Green-legged Partridge female chickens) divided into “fat” and “lean” groups, according to their abdominal fat yield. The NM_001001460.1 transcriptwas upregulated with ratio of means 4.26 (p≤0.01) in the “fat” group in relation to the “lean” group. Expression of this transcript was highly correlated with relative abdominal fat content (0.71, p≤0.01)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fat deposition; PPARG; Transcription factor; SNP; Slow-growing chickens.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000300447

Modulation of the expression of the transcription factor Max in rat retinal ganglion cells by a recombinant adeno-associated viral vector
Provedor de dados: 56
Autores: Petrs-Silva,H.; Chiodo,V.; Chiarini,L.B.; Hauswirth,W.W.; Linden,R.
Exclusion of the transcription factor Max from the nucleus of retinal ganglion cells is an early, caspase-independent event of programmed cell death following damage to the optic axons. To test whether the loss of nuclear Max leads to a reduction in neuroprotection, we developed a procedure to overexpress Max protein in rat retinal tissue in vivo. A recombinant adeno-associated viral vector (rAAV) containing the max gene was constructed, and its efficiency was confirmed by transduction of HEK-293 cells. Retinal ganglion cells were accessed in vivo through intravitreal injections of the vector in rats. Overexpression of Max in ganglion cells was detected by immunohistochemistry at 2 weeks following rAAV injection. In retinal explants, the preparation of...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Retina; Max expression; Transcription factor; Viral vector; Gene therapy; Neuroprotection.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000300008