Cul2/Rbx1 [Untagged] E3 Ligase
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Genome-Wide Analysis and Characterization of F-Box Gene Family in Gossypium Hirsutum L Shulin Zhang1,2, Zailong Tian1, Haipeng Li1, Yutao Guo1, Yanqi Zhang1, Jeremy A
Zhang et al. BMC Genomics (2019) 20:993 https://doi.org/10.1186/s12864-019-6280-2 RESEARCH ARTICLE Open Access Genome-wide analysis and characterization of F-box gene family in Gossypium hirsutum L Shulin Zhang1,2, Zailong Tian1, Haipeng Li1, Yutao Guo1, Yanqi Zhang1, Jeremy A. Roberts3, Xuebin Zhang1* and Yuchen Miao1* Abstract Background: F-box proteins are substrate-recognition components of the Skp1-Rbx1-Cul1-F-box protein (SCF) ubiquitin ligases. By selectively targeting the key regulatory proteins or enzymes for ubiquitination and 26S proteasome mediated degradation, F-box proteins play diverse roles in plant growth/development and in the responses of plants to both environmental and endogenous signals. Studies of F-box proteins from the model plant Arabidopsis and from many additional plant species have demonstrated that they belong to a super gene family, and function across almost all aspects of the plant life cycle. However, systematic exploration of F-box family genes in the important fiber crop cotton (Gossypium hirsutum) has not been previously performed. The genome- wide analysis of the cotton F-box gene family is now possible thanks to the completion of several cotton genome sequencing projects. Results: In current study, we first conducted a genome-wide investigation of cotton F-box family genes by reference to the published F-box protein sequences from other plant species. 592 F-box protein encoding genes were identified in the Gossypium hirsutume acc.TM-1 genome and, subsequently, we were able to present their gene structures, chromosomal locations, syntenic relationships with their parent species. In addition, duplication modes analysis showed that cotton F-box genes were distributed to 26 chromosomes, with the maximum number of genes being detected on chromosome 5. -
Neddylation: a Novel Modulator of the Tumor Microenvironment Lisha Zhou1,2*†, Yanyu Jiang3†, Qin Luo1, Lihui Li1 and Lijun Jia1*
Zhou et al. Molecular Cancer (2019) 18:77 https://doi.org/10.1186/s12943-019-0979-1 REVIEW Open Access Neddylation: a novel modulator of the tumor microenvironment Lisha Zhou1,2*†, Yanyu Jiang3†, Qin Luo1, Lihui Li1 and Lijun Jia1* Abstract Neddylation, a post-translational modification that adds an ubiquitin-like protein NEDD8 to substrate proteins, modulates many important biological processes, including tumorigenesis. The process of protein neddylation is overactivated in multiple human cancers, providing a sound rationale for its targeting as an attractive anticancer therapeutic strategy, as evidence by the development of NEDD8-activating enzyme (NAE) inhibitor MLN4924 (also known as pevonedistat). Neddylation inhibition by MLN4924 exerts significantly anticancer effects mainly by triggering cell apoptosis, senescence and autophagy. Recently, intensive evidences reveal that inhibition of neddylation pathway, in addition to acting on tumor cells, also influences the functions of multiple important components of the tumor microenvironment (TME), including immune cells, cancer-associated fibroblasts (CAFs), cancer-associated endothelial cells (CAEs) and some factors, all of which are crucial for tumorigenesis. Here, we briefly summarize the latest progresses in this field to clarify the roles of neddylation in the TME, thus highlighting the overall anticancer efficacy of neddylaton inhibition. Keywords: Neddylation, Tumor microenvironment, Tumor-derived factors, Cancer-associated fibroblasts, Cancer- associated endothelial cells, Immune cells Introduction Overall, binding of NEDD8 molecules to target proteins Neddylation is a reversible covalent conjugation of an can affect their stability, subcellular localization, conform- ubiquitin-like molecule NEDD8 (neuronal precursor ation and function [4]. The best-characterized substrates cell-expressed developmentally down-regulated protein of neddylation are the cullin subunits of Cullin-RING li- 8) to a lysine residue of the substrate protein [1, 2]. -
Dynamic Interplay Between Locus-Specific DNA Methylation and Hydroxymethylation Regulates Distinct Biological Pathways in Prostate Carcinogenesis Shivani N
Kamdar et al. Clinical Epigenetics (2016) 8:32 DOI 10.1186/s13148-016-0195-4 RESEARCH Open Access Dynamic interplay between locus-specific DNA methylation and hydroxymethylation regulates distinct biological pathways in prostate carcinogenesis Shivani N. Kamdar1,2, Linh T. Ho1, Ken J. Kron1, Ruth Isserlin3, Theodorus van der Kwast1,4, Alexandre R. Zlotta5, Neil E. Fleshner6, Gary Bader3 and Bharati Bapat1,2* Abstract Background: Despite the significant global loss of DNA hydroxymethylation marks in prostate cancer tissues, the locus-specific role of hydroxymethylation in prostate tumorigenesis is unknown. We characterized hydroxymethylation and methylation marks by performing whole-genome next-generation sequencing in representative normal and prostate cancer-derived cell lines in order to determine functional pathways and key genes regulated by these epigenomic modifications in cancer. Results: Our cell line model shows disruption of hydroxymethylation distribution in cancer, with global loss and highly specific gain in promoter and CpG island regions. Significantly, we observed locus-specific retention of hydroxymethylation marks in specific intronic and intergenic regions which may play a novel role in the regulation of gene expression in critical functional pathways, such as BARD1 signaling and steroid hormone receptor signaling in cancer. We confirm a modest correlation of hydroxymethylation with expression in intragenic regions in prostate cancer, while identifying an original role for intergenic hydroxymethylation in differentially expressed regulatory pathways in cancer. We also demonstrate a successful strategy for the identification and validation of key candidate genes from differentially regulated biological pathways in prostate cancer. Conclusions: Our results indicate a distinct function for aberrant hydroxymethylation within each genomic feature in cancer, suggesting a specific and complex role for the deregulation of hydroxymethylation in tumorigenesis, similar to methylation. -
DDB1 Functions As a Linker to Recruit Receptor WD40 Proteins to CUL4− ROC1 Ubiquitin Ligases
Downloaded from genesdev.cshlp.org on October 6, 2021 - Published by Cold Spring Harbor Laboratory Press RESEARCH COMMUNICATION domain to bind with a conserved protein motif, the F DDB1 functions as a linker box, which, via its additional protein–protein interaction to recruit receptor WD40 modules, recruits various substrates, often phosphory- lated, to the CUL1–ROC1 catalytic core. To bring spe- proteins to CUL4–ROC1 cific substrates to CUL2- and CUL5-dependent ligases, a ubiquitin ligases heterodimeric linker complex containing elongins B and C binds simultaneously to an analogous N-terminal do- Yizhou Joseph He, Chad M. McCall, Jian Hu, main in CUL2 and CUL5 and to two similar protein 1 motifs, the VHL box and SOCS box. VHL and SOCS pro- Yaxue Zeng, and Yue Xiong teins, via their additional protein–protein interaction Lineberger Comprehensive Cancer Center, Department of modules, target various substrates differentially to the Biochemistry and Biophysics, Program in Molecular Biology CUL2–ROC1 or CUL5–ROC2 catalytic cores (Kamura et and Biotechnology, University of North Carolina, Chapel Hill, al. 1998, 2001, 2004; Stebbins et al. 1999; Zhang et al. North Carolina 27599, USA 1999). Omitting a linker, CUL3 utilizes its N-terminal domain to bind to proteins with a conserved 100-residue Cullins assemble the largest family of ubiquitin ligases protein motif known as a BTB domain, which, via addi- by binding with ROC1 and various substrate receptors. tional protein–protein interaction domains, then target CUL4 function is linked with many cellular processes, various substrates to the CUL3–ROC1 catalytic core (Fu- rukawa et al. 2003; Geyer et al. -
Expression and Purification of Functional Recombinant CUL2
www.nature.com/scientificreports OPEN Expression and purifcation of functional recombinant CUL2•RBX1 from E. coli Stephanie Diaz1, Lihong Li1,2, Kankan Wang1 & Xing Liu1,2* Cullin-2 (CUL2) based cullin-RING ligases (CRL2s) comprise a family of ubiquitin E3 ligases that exist only in multi-cellular organisms and are crucial for cellular processes such as embryogenesis and viral pathogenesis. CUL2 is the scafold protein that binds one of the interchangeable substrate receptor modules, which consists of adaptor proteins and the substrate receptor protein. The VHL protein is a substrate receptor known to target hypoxia-inducible factor α (HIF1α) for ubiquitination and degradation. Because of its critical role in the ubiquitination of important cellular factors such as HIF1α, CRL2s have been investigated for their biological functions and the development of novel therapeutics against diseases. Given the importance of CRL2s in biological and biomedical research, methods that efciently produce functional CUL2 proteins will greatly facilitate studies on the mechanism and regulation of CRL2s. Here, we report two cost-efective systems for the expression and purifcation of recombinant human CUL2 from E. coli cells. The purifed CUL2 proteins were ~ 95% pure, could bind their substrate receptor modules, and were enzymatically active in transferring ubiquitin or ubiquitin-like protein to the corresponding substrate in in vitro assays. The presented methodological advancements will help advance research in CRL2 function and regulation. Protein turnover is a cellular regulatory system defned by the continuous synthesis and decomposition of specifc proteins to maintain the integrity of optimally functioning proteins 1,2. Abnormalities during protein turnover, specifcally during protein degradation, ofen result in human diseases such as cystic fbrosis and liposarcoma. -
Molecular Signatures Differentiate Immune States in Type 1 Diabetes Families
Page 1 of 65 Diabetes Molecular signatures differentiate immune states in Type 1 diabetes families Yi-Guang Chen1, Susanne M. Cabrera1, Shuang Jia1, Mary L. Kaldunski1, Joanna Kramer1, Sami Cheong2, Rhonda Geoffrey1, Mark F. Roethle1, Jeffrey E. Woodliff3, Carla J. Greenbaum4, Xujing Wang5, and Martin J. Hessner1 1The Max McGee National Research Center for Juvenile Diabetes, Children's Research Institute of Children's Hospital of Wisconsin, and Department of Pediatrics at the Medical College of Wisconsin Milwaukee, WI 53226, USA. 2The Department of Mathematical Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA. 3Flow Cytometry & Cell Separation Facility, Bindley Bioscience Center, Purdue University, West Lafayette, IN 47907, USA. 4Diabetes Research Program, Benaroya Research Institute, Seattle, WA, 98101, USA. 5Systems Biology Center, the National Heart, Lung, and Blood Institute, the National Institutes of Health, Bethesda, MD 20824, USA. Corresponding author: Martin J. Hessner, Ph.D., The Department of Pediatrics, The Medical College of Wisconsin, Milwaukee, WI 53226, USA Tel: 011-1-414-955-4496; Fax: 011-1-414-955-6663; E-mail: [email protected]. Running title: Innate Inflammation in T1D Families Word count: 3999 Number of Tables: 1 Number of Figures: 7 1 For Peer Review Only Diabetes Publish Ahead of Print, published online April 23, 2014 Diabetes Page 2 of 65 ABSTRACT Mechanisms associated with Type 1 diabetes (T1D) development remain incompletely defined. Employing a sensitive array-based bioassay where patient plasma is used to induce transcriptional responses in healthy leukocytes, we previously reported disease-specific, partially IL-1 dependent, signatures associated with pre and recent onset (RO) T1D relative to unrelated healthy controls (uHC). -
Disruption of the Coordination Between Host Circadian Rhythms and Malaria
bioRxiv preprint doi: https://doi.org/10.1101/791046; this version posted October 2, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Disruption of the coordination between host circadian rhythms and malaria parasite development alters the duration of the intraerythrocytic cycle Authors Amit K. Subudhi1, Aidan J. O’Donnell2†, Abhinay Ramaprasad1†, Hussein M. Abkallo3, Abhinav Kaushik1, Hifzur R. Ansari1, Alyaa M Abdel-Haleem1, Fathia Ben Rached1, Osamu Kaneko4, Richard Culleton3,*, Sarah E. Reece2,*, Arnab Pain1,5,6* 1Pathogen Genomics Group, BESE Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia 2Institute of Evolutionary Biology, and Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh EH9 3FL, UK 3Malaria Unit, Department of Pathology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan 4Department of Protozoology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan 5Center for Zoonosis Control, Global Institution for Collaborative Research and Education (GI-CoRE); Hokkaido University, N20 W10 Kita-ku, Sapporo, 001-0020 Japan 6Lead Contact Current address: Computational Bioscience Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia. †Contributed equally 1 bioRxiv preprint doi: https://doi.org/10.1101/791046; this version posted October 2, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. -
The Structure and Regulation of Cullin 2 Based E3 Ubiquitin Ligases and Their Biological Functions Weijia Cai* and Haifeng Yang*
Cai and Yang Cell Div (2016) 11:7 DOI 10.1186/s13008-016-0020-7 Cell Division REVIEW Open Access The structure and regulation of Cullin 2 based E3 ubiquitin ligases and their biological functions Weijia Cai* and Haifeng Yang* Abstract Background: Cullin-RING E3 ubiquitin ligase complexes play a central role in targeting cellular proteins for ubiquit- ination-dependent protein turnover through 26S proteasome. Cullin-2 is a member of the Cullin family, and it serves as a scaffold protein for Elongin B and C, Rbx1 and various substrate recognition receptors to form E3 ubiquitin ligases. Main body of the abstract: First, the composition, structure and the regulation of Cullin-2 based E3 ubiquitin ligases were introduced. Then the targets, the biological functions of complexes that use VHL, Lrr-1, Fem1b, Prame, Zyg-11, BAF250, Rack1 as substrate targeting subunits were described, and their involvement in diseases was discussed. A small molecule inhibitor of Cullins as a potential anti-cancer drug was introduced. Furthermore, proteins with VHL box that might bind to Cullin-2 were described. Finally, how different viral proteins form E3 ubiquitin ligase complexes with Cullin-2 to counter host viral defense were explained. Conclusions: Cullin-2 based E3 ubiquitin ligases, using many different substrate recognition receptors, recognize a number of substrates and regulate their protein stability. These complexes play critical roles in biological processes and diseases such as cancer, germline differentiation and viral defense. Through the better understanding of their biology, we can devise and develop new therapeutic strategies to treat cancers, inherited diseases and viral infections. -
Mouse Dcun1d1 Knockout Project (CRISPR/Cas9)
https://www.alphaknockout.com Mouse Dcun1d1 Knockout Project (CRISPR/Cas9) Objective: To create a Dcun1d1 knockout Mouse model (C57BL/6J) by CRISPR/Cas-mediated genome engineering. Strategy summary: The Dcun1d1 gene (NCBI Reference Sequence: NM_001205361 ; Ensembl: ENSMUSG00000027708 ) is located on Mouse chromosome 3. 7 exons are identified, with the ATG start codon in exon 1 and the TAG stop codon in exon 7 (Transcript: ENSMUST00000108182). Exon 2~4 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: Mice homozygous for a knock-out allele are runted with spleen and lymphoid hypoplasia and decreased mouse embryonic fibroblast proliferation. Males are infertile and exhibit abnormal spermiogenesis. Exon 2 starts from about 0.51% of the coding region. Exon 2~4 covers 66.54% of the coding region. The size of effective KO region: ~4968 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 3 4 7 Legends Exon of mouse Dcun1d1 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. -
Anti-DCUN1D1 Antibody (ARG65153)
Product datasheet [email protected] ARG65153 Package: 100 μg anti-DCUN1D1 antibody Store at: -20°C Summary Product Description Goat Polyclonal antibody recognizes DCUN1D1 Tested Reactivity Hu Predict Reactivity Ms, Cow Tested Application IHC-P, WB Host Goat Clonality Polyclonal Isotype IgG Target Name DCUN1D1 Antigen Species Human Immunogen C-RPQIAGTKSTT Conjugation Un-conjugated Alternate Names SCRO; RP42; Defective in cullin neddylation protein 1-like protein 1; Squamous cell carcinoma-related oncogene; DCUN1 domain-containing protein 1; SCCRO; DCN1-like protein 1; DCUN1L1; DCNL1; Tes3 Application Instructions Application table Application Dilution IHC-P 5 - 10 µg/ml WB 0.3 - 1 µg/ml Application Note IHC-P: Antigen Retrieval: Steam tissue section in Citrate buffer (pH 6.0). WB: Recommend incubate at RT for 1h. * The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist. Calculated Mw 30 kDa Properties Form Liquid Purification Purified from goat serum by ammonium sulphate precipitation followed by antigen affinity chromatography using the immunizing peptide. Buffer Tris saline (pH 7.3), 0.02% Sodium azide and 0.5% BSA Preservative 0.02% Sodium azide Stabilizer 0.5% BSA Concentration 0.5 mg/ml www.arigobio.com 1/2 Storage instruction For continuous use, store undiluted antibody at 2-8°C for up to a week. For long-term storage, aliquot and store at -20°C or below. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use. Note For laboratory research only, not for drug, diagnostic or other use. -
Modeling Genomic Diversity and Tumor Dependency in Malignant Melanoma
Research Article Modeling Genomic Diversity and Tumor Dependency in Malignant Melanoma William M. Lin,1,3,5 Alissa C. Baker,1,3 Rameen Beroukhim,1,3,5 Wendy Winckler,1,3,5 Whei Feng,1,3,5 Jennifer M. Marmion,7 Elisabeth Laine,8 Heidi Greulich,1,3,5 Hsiuyi Tseng,1,3 Casey Gates,5 F. Stephen Hodi,1 Glenn Dranoff,1 William R. Sellers,1,6 Roman K. Thomas,9,10 Matthew Meyerson,1,3,4,5 Todd R. Golub,2,3,5 Reinhard Dummer,8 Meenhard Herlyn,7 Gad Getz,3,5 and Levi A. Garraway1,3,5 Departments of 1Medical Oncology and 2Pediatric Oncology and 3Center for Cancer Genome Discovery, Dana-Farber Cancer Institute, Harvard Medical School; 4Department of Pathology, Harvard Medical School, Boston, Massachusetts; 5The Broad Institute of M.I.T. and Harvard; 6Novartis Institutes for Biomedical Research, Cambridge, Massachusetts; 7Cancer Biology Division, Wistar Institute, Philadelphia, Pennsylvania; 8Department of Dermatology, University of Zurich Hospital, Zu¨rich, Switzerland; 9Max Planck Institute for Neurological Research with Klaus Joachim Zulch Laboratories of the Max Planck Society and the Medical Faculty of the University of Cologne; and 10Center for Integrated Oncology and Department I for Internal Medicine, University of Cologne, Cologne, Germany Abstract tumorigenesis have been derived from functional studies involving The classification of human tumors based on molecular cultured human cancer cells (e.g., established cell lines, short-term cultures, etc.). Despite their limitations, cancer cell line collections criteria offers tremendous clinical potential; however, dis- cerning critical and ‘‘druggable’’ effectors on a large scale will whose genetic alterations reflect their primary tumor counterparts also require robust experimental models reflective of tumor should provide malleable proxies that facilitate mechanistic genomic diversity. -
A Graph-Theoretic Approach to Model Genomic Data and Identify Biological Modules Asscociated with Cancer Outcomes
A Graph-Theoretic Approach to Model Genomic Data and Identify Biological Modules Asscociated with Cancer Outcomes Deanna Petrochilos A dissertation presented in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Washington 2013 Reading Committee: Neil Abernethy, Chair John Gennari, Ali Shojaie Program Authorized to Offer Degree: Biomedical Informatics and Health Education UMI Number: 3588836 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. UMI 3588836 Published by ProQuest LLC (2013). Copyright in the Dissertation held by the Author. Microform Edition © ProQuest LLC. All rights reserved. This work is protected against unauthorized copying under Title 17, United States Code ProQuest LLC. 789 East Eisenhower Parkway P.O. Box 1346 Ann Arbor, MI 48106 - 1346 ©Copyright 2013 Deanna Petrochilos University of Washington Abstract Using Graph-Based Methods to Integrate and Analyze Cancer Genomic Data Deanna Petrochilos Chair of the Supervisory Committee: Assistant Professor Neil Abernethy Biomedical Informatics and Health Education Studies of the genetic basis of complex disease present statistical and methodological challenges in the discovery of reliable and high-confidence genes that reveal biological phenomena underlying the etiology of disease or gene signatures prognostic of disease outcomes. This dissertation examines the capacity of graph-theoretical methods to model and analyze genomic information and thus facilitate using prior knowledge to create a more discrete and functionally relevant feature space.