Specification in Embryonic Stem Cells Through Activation and Repression
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BIOCHEMICAL CHARACTERIZATION AND REGULATION OF TRANSCRIPTION OF POLYCOMB GROUP RING FINGER 5 by Christopher Larson Cochrane B.Sc., The University of British Columbia, 2004 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in THE FACULTY OF GRADUATE AND POSTDOCTORAL STUDIES (Experimental Medicine) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) August 2013 © Christopher Larson Cochrane, 2013 Abstract The Polycomb Group (PcG) is a highly conserved group of genes which serve to repress transcription via specific modifications of histones in chromatin. The PcG has well-established roles in development and is involved, by mutation or dysregulation, in many human diseases including cancer. This study identifies the gene PCGF5, which is a paralogue of the oncogene Bmi1, as a transcriptional target of Notch signalling in T cell acute lymphoblastic leukemia (T-ALL). Evidence suggests that this regulation is direct and that the Notch transactivation complex binds DNA at several regions near the PCGF5 gene. PCGF5 is found to be expressed at a higher level in T-ALL than other hematopoietic malignancies. PCGF5 is found to associate with the PcG proteins RING1A and RING1B and its overexpression results in increased ubiquitylation of histone H2A, suggesting it shares functional similarity to Bmi1. Despite their similarities, Bmi1 and PCGF5 have a different spectrum of binding partners and are targeted to different locations in the genome. Overexpression of PCGF5 does not significantly alter hematopoietic development in vivo; however, enforced expression of PCGF5 in bone marrow progenitors results in the generation of fewer colonies in a myeloid colony forming assay. This study suggests that PCGF5 may have as yet unappreciated roles in PcG biology and merits further study into its effects on development and hematopoietic neoplasia. -
Polycomb Group Proteins Ring1a/B Are Functionally Linked to the Core Transcriptional Regulatory Circuitry to Maintain ES Cell Identity Mitsuhiro Endoh1, Takaho A
Development ePress online publication date 13 March 2008 RESEARCH ARTICLE 1513 Development 135, 1513-1524 (2008) doi:10.1242/dev.014340 Polycomb group proteins Ring1A/B are functionally linked to the core transcriptional regulatory circuitry to maintain ES cell identity Mitsuhiro Endoh1, Takaho A. Endo2, Tamie Endoh1, Yu-ichi Fujimura1, Osamu Ohara1, Tetsuro Toyoda2, Arie P. Otte3, Masaki Okano4, Neil Brockdorff5, Miguel Vidal1,6 and Haruhiko Koseki1,* The Polycomb group (PcG) proteins mediate heritable silencing of developmental regulators in metazoans, participating in one of two distinct multimeric protein complexes, the Polycomb repressive complexes 1 (PRC1) and 2 (PRC2). Although PRC2 has been shown to share target genes with the core transcription network, including Oct3/4, to maintain embryonic stem (ES) cells, it is still unclear whether PcG proteins and the core transcription network are functionally linked. Here, we identify an essential role for the core PRC1 components Ring1A/B in repressing developmental regulators in mouse ES cells and, thereby, in maintaining ES cell identity. A significant proportion of the PRC1 target genes are also repressed by Oct3/4. We demonstrate that engagement of PRC1 at target genes is Oct3/4-dependent, whereas engagement of Oct3/4 is PRC1-independent. Moreover, upon differentiation induced by Gata6 expression, most of the Ring1A/B target genes are derepressed and the binding of Ring1A/B to their target loci is also decreased. Collectively, these results indicate that Ring1A/B-mediated Polycomb -
Noelia Díaz Blanco
Effects of environmental factors on the gonadal transcriptome of European sea bass (Dicentrarchus labrax), juvenile growth and sex ratios Noelia Díaz Blanco Ph.D. thesis 2014 Submitted in partial fulfillment of the requirements for the Ph.D. degree from the Universitat Pompeu Fabra (UPF). This work has been carried out at the Group of Biology of Reproduction (GBR), at the Department of Renewable Marine Resources of the Institute of Marine Sciences (ICM-CSIC). Thesis supervisor: Dr. Francesc Piferrer Professor d’Investigació Institut de Ciències del Mar (ICM-CSIC) i ii A mis padres A Xavi iii iv Acknowledgements This thesis has been made possible by the support of many people who in one way or another, many times unknowingly, gave me the strength to overcome this "long and winding road". First of all, I would like to thank my supervisor, Dr. Francesc Piferrer, for his patience, guidance and wise advice throughout all this Ph.D. experience. But above all, for the trust he placed on me almost seven years ago when he offered me the opportunity to be part of his team. Thanks also for teaching me how to question always everything, for sharing with me your enthusiasm for science and for giving me the opportunity of learning from you by participating in many projects, collaborations and scientific meetings. I am also thankful to my colleagues (former and present Group of Biology of Reproduction members) for your support and encouragement throughout this journey. To the “exGBRs”, thanks for helping me with my first steps into this world. Working as an undergrad with you Dr. -
Mai Muudatuntuu Ti on Man Mini
MAIMUUDATUNTUU US009809854B2 TI ON MAN MINI (12 ) United States Patent ( 10 ) Patent No. : US 9 ,809 ,854 B2 Crow et al. (45 ) Date of Patent : Nov . 7 , 2017 Whitehead et al. (2005 ) Variation in tissue - specific gene expression ( 54 ) BIOMARKERS FOR DISEASE ACTIVITY among natural populations. Genome Biology, 6 :R13 . * AND CLINICAL MANIFESTATIONS Villanueva et al. ( 2011 ) Netting Neutrophils Induce Endothelial SYSTEMIC LUPUS ERYTHEMATOSUS Damage , Infiltrate Tissues, and Expose Immunostimulatory Mol ecules in Systemic Lupus Erythematosus . The Journal of Immunol @(71 ) Applicant: NEW YORK SOCIETY FOR THE ogy , 187 : 538 - 552 . * RUPTURED AND CRIPPLED Bijl et al. (2001 ) Fas expression on peripheral blood lymphocytes in MAINTAINING THE HOSPITAL , systemic lupus erythematosus ( SLE ) : relation to lymphocyte acti vation and disease activity . Lupus, 10 :866 - 872 . * New York , NY (US ) Crow et al . (2003 ) Microarray analysis of gene expression in lupus. Arthritis Research and Therapy , 5 :279 - 287 . * @(72 ) Inventors : Mary K . Crow , New York , NY (US ) ; Baechler et al . ( 2003 ) Interferon - inducible gene expression signa Mikhail Olferiev , Mount Kisco , NY ture in peripheral blood cells of patients with severe lupus . PNAS , (US ) 100 ( 5 ) : 2610 - 2615. * GeneCards database entry for IFIT3 ( obtained from < http : / /www . ( 73 ) Assignee : NEW YORK SOCIETY FOR THE genecards. org /cgi - bin / carddisp .pl ? gene = IFIT3 > on May 26 , 2016 , RUPTURED AND CRIPPLED 15 pages ) . * Navarra et al. (2011 ) Efficacy and safety of belimumab in patients MAINTAINING THE HOSPITAL with active systemic lupus erythematosus : a randomised , placebo FOR SPECIAL SURGERY , New controlled , phase 3 trial . The Lancet , 377 :721 - 731. * York , NY (US ) Abramson et al . ( 1983 ) Arthritis Rheum . -
PCGF2 Monoclonal Antibody (M07A), Clone 4E5
PCGF2 monoclonal antibody (M07A), clone 4E5 Catalog # : H00007703-M07A 規格 : [ 200 uL ] List All Specification Application Image Product Mouse monoclonal antibody raised against a partial recombinant Western Blot (Recombinant protein) Description: PCGF2. ELISA Immunogen: PCGF2 (AAH04858.1, 236 a.a. ~ 294 a.a) partial recombinant protein with GST tag. MW of the GST tag alone is 26 KDa. Sequence: LTLATVPTPSEGTNTSGASECESVSDKAPSPATLPATSSSLPSPATPSH GSPSSHGPPA Host: Mouse Reactivity: Human Isotype: IgG2a Kappa Quality Control Antibody Reactive Against Recombinant Protein. Testing: Western Blot detection against Immunogen (32.23 KDa) . Storage Buffer: In ascites fluid Storage Store at -20°C or lower. Aliquot to avoid repeated freezing and thawing. Instruction: MSDS: Download Datasheet: Download Applications Western Blot (Recombinant protein) Protocol Download ELISA Gene Information Entrez GeneID: 7703 GeneBank BC004858 Page 1 of 2 2020/6/25 Accession#: Protein AAH04858.1 Accession#: Gene Name: PCGF2 Gene Alias: MEL-18,MGC10545,RNF110,ZNF144 Gene polycomb group ring finger 2 Description: Omim ID: 600346 Gene Ontology: Hyperlink Gene Summary: The protein encoded by this gene contains a RING finger motif and is similar to the polycomb group (PcG) gene products. PcG gene products form complexes via protein-protein interaction and maintain the transcription repression of genes involved in embryogenesis, cell cycles, and tumorigenesis. This protein was shown to act as a negative regulator of transcription and has tumor suppressor activity. The expression of this gene was detected in various tumor cells, but is limited in neural organs in normal tissues. Knockout studies in mice suggested that this protein may negatively regulate the expression of different cytokines, chemokines, and chemokine receptors, and thus plays an important role in lymphocyte differentiation and migration, as well as in immune responses. -
Estrogen Exposure Overrides the Masculinizing Effect of Elevated
Díaz and Piferrer BMC Genomics (2017) 18:973 DOI 10.1186/s12864-017-4345-7 RESEARCH ARTICLE Open Access Estrogen exposure overrides the masculinizing effect of elevated temperature by a downregulation of the key genes implicated in sexual differentiation in a fish with mixed genetic and environmental sex determination Noelia Díaz1,2 and Francesc Piferrer1* Abstract Background: Understanding the consequences of thermal and chemical variations in aquatic habitats is of importance in a scenario of global change. In ecology, the sex ratio is a major population demographic parameter. So far, research that measured environmental perturbations on fish sex ratios has usually involved a few model species with a strong genetic basis of sex determination, and focused on the study of juvenile or adult gonads. However, the underlying mechanisms at the time of gender commitment are poorly understood. In an effort to elucidate the mechanisms driving sex differentiation, here we used the European sea bass, a fish species where genetics and environment (temperature) contribute equally to sex determination. Results: Here, we analyzed the transcriptome of developing gonads experiencing either testis or ovarian differentiation as a result of thermal and/or exogenous estrogen influences. These external insults elicited different responses. Thus, while elevated temperature masculinized genetic females, estrogen exposure was able to override thermal effects and resulted in an all-female population. A total of 383 genes were differentially expressed, with an overall downregulation in the expression of genes involved in both in testicular and ovarian differentiation when fish were exposed to Estradiol-17ß through a shutdown of the first steps of steroidogenesis. -
Mouse Pcgf5 Conditional Knockout Project (CRISPR/Cas9)
https://www.alphaknockout.com Mouse Pcgf5 Conditional Knockout Project (CRISPR/Cas9) Objective: To create a Pcgf5 conditional knockout Mouse model (C57BL/6J) by CRISPR/Cas-mediated genome engineering. Strategy summary: The Pcgf5 gene (NCBI Reference Sequence: NM_029508 ; Ensembl: ENSMUSG00000024805 ) is located on Mouse chromosome 19. 9 exons are identified, with the ATG start codon in exon 2 and the TAG stop codon in exon 9 (Transcript: ENSMUST00000071267). Exon 3 will be selected as conditional knockout region (cKO region). Deletion of this region should result in the loss of function of the Mouse Pcgf5 gene. To engineer the targeting vector, homologous arms and cKO region will be generated by PCR using BAC clone RP24-148L3 as template. Cas9, gRNA and targeting vector will be co-injected into fertilized eggs for cKO Mouse production. The pups will be genotyped by PCR followed by sequencing analysis. Note: Bone marrow cells from mice homozygous for a conditional allele exhibit normal hematopoietic and progenitor cell function. Exon 3 starts from about 15.96% of the coding region. The knockout of Exon 3 will result in frameshift of the gene. The size of intron 2 for 5'-loxP site insertion: 22333 bp, and the size of intron 3 for 3'-loxP site insertion: 2488 bp. The size of effective cKO region: ~597 bp. The cKO region does not have any other known gene. Page 1 of 8 https://www.alphaknockout.com Overview of the Targeting Strategy Wildtype allele gRNA region 5' gRNA region 3' 1 3 9 Targeting vector Targeted allele Constitutive KO allele (After Cre recombination) Legends Exon of mouse Pcgf5 Homology arm cKO region loxP site Page 2 of 8 https://www.alphaknockout.com Overview of the Dot Plot Window size: 10 bp Forward Reverse Complement Sequence 12 Note: The sequence of homologous arms and cKO region is aligned with itself to determine if there are tandem repeats. -
Mammalian PRC1 Complexes: Compositional Complexity and Diverse Molecular Mechanisms
International Journal of Molecular Sciences Review Mammalian PRC1 Complexes: Compositional Complexity and Diverse Molecular Mechanisms Zhuangzhuang Geng 1 and Zhonghua Gao 1,2,3,* 1 Departments of Biochemistry and Molecular Biology, Penn State College of Medicine, Hershey, PA 17033, USA; [email protected] 2 Penn State Hershey Cancer Institute, Hershey, PA 17033, USA 3 The Stem Cell and Regenerative Biology Program, Penn State College of Medicine, Hershey, PA 17033, USA * Correspondence: [email protected] Received: 6 October 2020; Accepted: 5 November 2020; Published: 14 November 2020 Abstract: Polycomb group (PcG) proteins function as vital epigenetic regulators in various biological processes, including pluripotency, development, and carcinogenesis. PcG proteins form multicomponent complexes, and two major types of protein complexes have been identified in mammals to date, Polycomb Repressive Complexes 1 and 2 (PRC1 and PRC2). The PRC1 complexes are composed in a hierarchical manner in which the catalytic core, RING1A/B, exclusively interacts with one of six Polycomb group RING finger (PCGF) proteins. This association with specific PCGF proteins allows for PRC1 to be subdivided into six distinct groups, each with their own unique modes of action arising from the distinct set of associated proteins. Historically, PRC1 was considered to be a transcription repressor that deposited monoubiquitylation of histone H2A at lysine 119 (H2AK119ub1) and compacted local chromatin. More recently, there is increasing evidence that demonstrates the transcription activation role of PRC1. Moreover, studies on the higher-order chromatin structure have revealed a new function for PRC1 in mediating long-range interactions. This provides a different perspective regarding both the transcription activation and repression characteristics of PRC1. -
A Chromosome-Centric Human Proteome Project (C-HPP) To
computational proteomics Laboratory for Computational Proteomics www.FenyoLab.org E-mail: [email protected] Facebook: NYUMC Computational Proteomics Laboratory Twitter: @CompProteomics Perspective pubs.acs.org/jpr A Chromosome-centric Human Proteome Project (C-HPP) to Characterize the Sets of Proteins Encoded in Chromosome 17 † ‡ § ∥ ‡ ⊥ Suli Liu, Hogune Im, Amos Bairoch, Massimo Cristofanilli, Rui Chen, Eric W. Deutsch, # ¶ △ ● § † Stephen Dalton, David Fenyo, Susan Fanayan,$ Chris Gates, , Pascale Gaudet, Marina Hincapie, ○ ■ △ ⬡ ‡ ⊥ ⬢ Samir Hanash, Hoguen Kim, Seul-Ki Jeong, Emma Lundberg, George Mias, Rajasree Menon, , ∥ □ △ # ⬡ ▲ † Zhaomei Mu, Edouard Nice, Young-Ki Paik, , Mathias Uhlen, Lance Wells, Shiaw-Lin Wu, † † † ‡ ⊥ ⬢ ⬡ Fangfei Yan, Fan Zhang, Yue Zhang, Michael Snyder, Gilbert S. Omenn, , Ronald C. Beavis, † # and William S. Hancock*, ,$, † Barnett Institute and Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States ‡ Stanford University, Palo Alto, California, United States § Swiss Institute of Bioinformatics (SIB) and University of Geneva, Geneva, Switzerland ∥ Fox Chase Cancer Center, Philadelphia, Pennsylvania, United States ⊥ Institute for System Biology, Seattle, Washington, United States ¶ School of Medicine, New York University, New York, United States $Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, NSW, Australia ○ MD Anderson Cancer Center, Houston, Texas, United States ■ Yonsei University College of Medicine, Yonsei University, -
Association of the NPAS3 Gene and Five Other Loci with Response to The
Molecular Psychiatry (2009) 14, 804–819 & 2009 Nature Publishing Group All rights reserved 1359-4184/09 $32.00 www.nature.com/mp ORIGINAL ARTICLE Association of the NPAS3 gene and five other loci with response to the antipsychotic iloperidone identified in a whole genome association study C Lavedan, L Licamele, S Volpi, J Hamilton, C Heaton, K Mack, R Lannan, A Thompson, CD Wolfgang and MH Polymeropoulos Vanda Pharmaceuticals Inc., Rockville, MD, USA A whole genome association study was performed in a phase 3 clinical trial conducted to evaluate a novel antipsychotic, iloperidone, administered to treat patients with schizophrenia. Genotypes of 407 patients were analyzed for 334 563 single nucleotide polymorphisms (SNPs). SNPs associated with iloperidone efficacy were identified within the neuronal PAS domain protein 3 gene (NPAS3), close to a translocation breakpoint site previously observed in a family with schizophrenia. Five other loci were identified that include the XK, Kell blood group complex subunit-related family, member 4 gene (XKR4), the tenascin-R gene (TNR), the glutamate receptor, inotropic, AMPA 4 gene (GRIA4), the glial cell line-derived neurotrophic factor receptor-alpha2 gene (GFRA2), and the NUDT9P1 pseudogene located in the chromosomal region of the serotonin receptor 7 gene (HTR7). The study of these polymorphisms and genes may lead to a better understanding of the etiology of schizophrenia and of its treatment. These results provide new insight into response to iloperidone, developed with the ultimate goal of directing therapy to patients with the highest benefit-to-risk ratio. Molecular Psychiatry (2009) 14, 804–819; doi:10.1038/mp.2008.56; published online 3 June 2008 Keywords: iloperidone; antipsychotic; NPAS3; pharmacogenomics; schizophrenia Introduction the most optimal drug and dosage with less trial and error. -
Mouse Pcgf5 Knockout Project (CRISPR/Cas9)
https://www.alphaknockout.com Mouse Pcgf5 Knockout Project (CRISPR/Cas9) Objective: To create a Pcgf5 knockout Mouse model (C57BL/6J) by CRISPR/Cas-mediated genome engineering. Strategy summary: The Pcgf5 gene (NCBI Reference Sequence: NM_029508 ; Ensembl: ENSMUSG00000024805 ) is located on Mouse chromosome 19. 9 exons are identified, with the ATG start codon in exon 2 and the TAG stop codon in exon 9 (Transcript: ENSMUST00000071267). Exon 2 will be selected as target site. Cas9 and gRNA will be co-injected into fertilized eggs for KO Mouse production. The pups will be genotyped by PCR followed by sequencing analysis. Note: Bone marrow cells from mice homozygous for a conditional allele exhibit normal hematopoietic and progenitor cell function. Exon 2 starts from the coding region. Exon 2 covers 15.82% of the coding region. The size of effective KO region: ~281 bp. The KO region does not have any other known gene. Page 1 of 9 https://www.alphaknockout.com Overview of the Targeting Strategy Wildtype allele 5' gRNA region gRNA region 3' 1 2 9 Legends Exon of mouse Pcgf5 Knockout region Page 2 of 9 https://www.alphaknockout.com Overview of the Dot Plot (up) Window size: 15 bp Forward Reverse Complement Sequence 12 Note: The 2000 bp section upstream of Exon 2 is aligned with itself to determine if there are tandem repeats. No significant tandem repeat is found in the dot plot matrix. So this region is suitable for PCR screening or sequencing analysis. Overview of the Dot Plot (down) Window size: 15 bp Forward Reverse Complement Sequence 12 Note: The 2000 bp section downstream of Exon 2 is aligned with itself to determine if there are tandem repeats. -
Agricultural University of Athens
ΓΕΩΠΟΝΙΚΟ ΠΑΝΕΠΙΣΤΗΜΙΟ ΑΘΗΝΩΝ ΣΧΟΛΗ ΕΠΙΣΤΗΜΩΝ ΤΩΝ ΖΩΩΝ ΤΜΗΜΑ ΕΠΙΣΤΗΜΗΣ ΖΩΙΚΗΣ ΠΑΡΑΓΩΓΗΣ ΕΡΓΑΣΤΗΡΙΟ ΓΕΝΙΚΗΣ ΚΑΙ ΕΙΔΙΚΗΣ ΖΩΟΤΕΧΝΙΑΣ ΔΙΔΑΚΤΟΡΙΚΗ ΔΙΑΤΡΙΒΗ Εντοπισμός γονιδιωματικών περιοχών και δικτύων γονιδίων που επηρεάζουν παραγωγικές και αναπαραγωγικές ιδιότητες σε πληθυσμούς κρεοπαραγωγικών ορνιθίων ΕΙΡΗΝΗ Κ. ΤΑΡΣΑΝΗ ΕΠΙΒΛΕΠΩΝ ΚΑΘΗΓΗΤΗΣ: ΑΝΤΩΝΙΟΣ ΚΟΜΙΝΑΚΗΣ ΑΘΗΝΑ 2020 ΔΙΔΑΚΤΟΡΙΚΗ ΔΙΑΤΡΙΒΗ Εντοπισμός γονιδιωματικών περιοχών και δικτύων γονιδίων που επηρεάζουν παραγωγικές και αναπαραγωγικές ιδιότητες σε πληθυσμούς κρεοπαραγωγικών ορνιθίων Genome-wide association analysis and gene network analysis for (re)production traits in commercial broilers ΕΙΡΗΝΗ Κ. ΤΑΡΣΑΝΗ ΕΠΙΒΛΕΠΩΝ ΚΑΘΗΓΗΤΗΣ: ΑΝΤΩΝΙΟΣ ΚΟΜΙΝΑΚΗΣ Τριμελής Επιτροπή: Aντώνιος Κομινάκης (Αν. Καθ. ΓΠΑ) Ανδρέας Κράνης (Eρευν. B, Παν. Εδιμβούργου) Αριάδνη Χάγερ (Επ. Καθ. ΓΠΑ) Επταμελής εξεταστική επιτροπή: Aντώνιος Κομινάκης (Αν. Καθ. ΓΠΑ) Ανδρέας Κράνης (Eρευν. B, Παν. Εδιμβούργου) Αριάδνη Χάγερ (Επ. Καθ. ΓΠΑ) Πηνελόπη Μπεμπέλη (Καθ. ΓΠΑ) Δημήτριος Βλαχάκης (Επ. Καθ. ΓΠΑ) Ευάγγελος Ζωίδης (Επ.Καθ. ΓΠΑ) Γεώργιος Θεοδώρου (Επ.Καθ. ΓΠΑ) 2 Εντοπισμός γονιδιωματικών περιοχών και δικτύων γονιδίων που επηρεάζουν παραγωγικές και αναπαραγωγικές ιδιότητες σε πληθυσμούς κρεοπαραγωγικών ορνιθίων Περίληψη Σκοπός της παρούσας διδακτορικής διατριβής ήταν ο εντοπισμός γενετικών δεικτών και υποψηφίων γονιδίων που εμπλέκονται στο γενετικό έλεγχο δύο τυπικών πολυγονιδιακών ιδιοτήτων σε κρεοπαραγωγικά ορνίθια. Μία ιδιότητα σχετίζεται με την ανάπτυξη (σωματικό βάρος στις 35 ημέρες, ΣΒ) και η άλλη με την αναπαραγωγική