Synthetic Biology Applying Engineering to Biology
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Structural Data in Synthetic Biology Approaches for Studying General Design Principles of Cellular Signaling Networks
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector Structure Perspective Structural Data in Synthetic Biology Approaches for Studying General Design Principles of Cellular Signaling Networks Christina Kiel1,2,* and Luis Serrano1,2,3 1EMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003 Barcelona, Spain 2Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain 3ICREA, Pg. Lluı´s Companys 23, 08010 Barcelona, Spain *Correspondence: [email protected] http://dx.doi.org/10.1016/j.str.2012.10.002 In recent years, high-throughput discovery of macromolecular protein structures and complexes has played a major role in advancing a more systems-oriented view of protein interaction and signaling networks. The design of biological systems often employs structural information or structure-based protein design to successfully implement synthetic signaling circuits or for rewiring signaling flows. Here, we summarize the latest advances in using structural information for studying protein interaction and signaling networks, and in synthetic biology approaches. We then provide a perspective of how combining structural biology with engineered cell signaling modules—using additional information from quantitative biochemistry and proteo- mics, gene evolution, and mathematical modeling—can provide insight into signaling modules and the general design principles of cell signaling. Ultimately, this will improve our understanding of cell- and tissue-type-specific signal transduction. Integrating the quantitative effects of disease mutations into these systems may provide a basis for elucidating the molecular mechanisms of diseases. Introduction further complicated by the fact that often proteins recruit binding There is growing three-dimensional (3D) structural information partners using several domain or linear motifs. -
Using Antenna Tile-Assisted Substrate Delivery to Improve Detection Limits of Deoxyribozyme
University of Central Florida STARS HIM 1990-2015 2015 Using Antenna Tile-Assisted Substrate Delivery to Improve Detection Limits of Deoxyribozyme Amanda J. Cox University of Central Florida Part of the Biochemistry Commons Find similar works at: https://stars.library.ucf.edu/honorstheses1990-2015 University of Central Florida Libraries http://library.ucf.edu This Open Access is brought to you for free and open access by STARS. It has been accepted for inclusion in HIM 1990-2015 by an authorized administrator of STARS. For more information, please contact [email protected]. Recommended Citation Cox, Amanda J., "Using Antenna Tile-Assisted Substrate Delivery to Improve Detection Limits of Deoxyribozyme" (2015). HIM 1990-2015. 1861. https://stars.library.ucf.edu/honorstheses1990-2015/1861 USING ANTENNA TILE-ASSISTED SUBSTRATE DELIVERY TO IMPROVE THE DETECTION LIMITS OF DEOXYRIBOZYME BIOSENSORS by AMANDA J. COX A thesis submitted in partial fulfillment of the requirements for the Honors in the Major Program in Chemistry, Biochemistry Track in the College of Sciences and in the Burnett Honors College at the University of Central Florida Orlando, Florida Fall Term, 2015 Thesis Chair: Dr. Dmitry Kolpashchikov, PhD ABSTRACT One common limitation of enzymatic reactions is the diffusion of a substrate to the enzyme active site and/or the release of the reaction products. These reactions are known as diffusion – controlled. Overcoming this limitation may enable faster catalytic rates, which in the case of catalytic biosensors can potentially lower limits of detection of specific analyte. Here we created an artificial system to enable deoxyribozyme (Dz) 10-23 based biosensor to overcome its diffusion limit. -
Split Deoxyribozyme Probe for Efficient Detection of Highly Structured RNA Targets
University of Central Florida STARS Honors Undergraduate Theses UCF Theses and Dissertations 2018 Split Deoxyribozyme Probe For Efficient Detection of Highly Structured RNA Targets Sheila Raquel Solarez University of Central Florida Part of the Biochemistry Commons, and the Biology Commons Find similar works at: https://stars.library.ucf.edu/honorstheses University of Central Florida Libraries http://library.ucf.edu This Open Access is brought to you for free and open access by the UCF Theses and Dissertations at STARS. It has been accepted for inclusion in Honors Undergraduate Theses by an authorized administrator of STARS. For more information, please contact [email protected]. Recommended Citation Solarez, Sheila Raquel, "Split Deoxyribozyme Probe For Efficient Detection of Highly Structured RNA Targets" (2018). Honors Undergraduate Theses. 311. https://stars.library.ucf.edu/honorstheses/311 SPLIT DEOXYRIBOZYME PROBE FOR EFFICIENT DETECTION OF HIGHLY STRUCTURED RNA TARGETS By SHEILA SOLAREZ A thesis submitted in partial fulfillment of the requirements for the Honors in the Major Program in Biological Sciences in the College of Sciences and the Burnett Honors College at the University of Central Florida Orlando, Florida Spring Term, 2018 Thesis Chair: Yulia Gerasimova, PhD ABSTRACT Transfer RNAs (tRNAs) are known for their role as adaptors during translation of the genetic information and as regulators for gene expression; uncharged tRNAs regulate global gene expression in response to changes in amino acid pools in the cell. Aminoacylated tRNAs play a role in non-ribosomal peptide bond formation, post-translational protein labeling, modification of phospholipids in the cell membrane, and antibiotic biosynthesis. [1] tRNAs have a highly stable structure that can present a challenge for their detection using conventional techniques. -
(12) Patent Application Publication (10) Pub. No.: US 2004/0086860 A1 Sohail (43) Pub
US 20040O86860A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2004/0086860 A1 Sohail (43) Pub. Date: May 6, 2004 (54) METHODS OF PRODUCING RNAS OF Publication Classification DEFINED LENGTH AND SEQUENCE (51) Int. Cl." .............................. C12Q 1/68; C12P 19/34 (76) Inventor: Muhammad Sohail, Marston (GB) (52) U.S. Cl. ............................................... 435/6; 435/91.2 Correspondence Address: MINTZ, LEVIN, COHN, FERRIS, GLOWSKY (57) ABSTRACT AND POPEO, PC. ONE FINANCIAL CENTER Methods of making RNA duplexes and single-stranded BOSTON, MA 02111 (US) RNAS of a desired length and Sequence based on cleavage of RNA molecules at a defined position, most preferably (21) Appl. No.: 10/264,748 with the use of deoxyribozymes. Novel deoxyribozymes capable of cleaving RNAS including a leader Sequence at a (22) Filed: Oct. 4, 2002 Site 3' to the leader Sequence are also described. Patent Application Publication May 6, 2004 Sheet 1 of 2 US 2004/0086860 A1 DNA Oligonucleotides T7 Promoter -TN-- OR 2N-2-N-to y Transcription Products GGGCGAAT-N-UU GGGCGAAT-N-UU w N Deoxyribozyme Cleavage - Q GGGCGAAT -------' Racction GGGCGAAT N-- UU N-UU ssRNA products N-UU Anneal ssRNA UU S-2N- UU siRNA product FIGURE 1: Flowchart summarising the procedure for siRNA synthesis. Patent Application Publication May 6, 2004 Sheet 2 of 2 US 2004/0086860 A1 Full-length transcript 3'-digestion product 5'-digestion product (5'GGGCGAATA) A: Production of single-stranded RNA templates by in vitro transcription and digestion With a deoxyribozyme V 2- 2 V 22inv 22 * 2 &3 S/AS - 88.8x, *...* or as IGFR -- is as 4. -
Biochemistry Biotechnology Cell Biology
Undergraduate Biochemistry Opportunities www.ed.ac.uk/biology Biotechnology Cell Biology Biochem_Biotech_CellBio_A5.indd 1 21/05/2019 14:25 Biochemistry The programme combines coverage of the Biochemistry is the study of living systems at basic principles and knowledge underpinning the cellular and molecular level. This dynamic biotechnology and an appreciation of the field draws on a variety of subjects and has processes involved in converting an idea widespread application. Biochemistry applies a into a product. The objective is to provide a knowledge of chemistry and physical sciences firm foundation in molecular and microbial to investigate basic life processes. The subject biotechnology through compulsory sections has a major impact on modern medical research dealing with topics such as expression vectors, and upon the pharmaceutical, bioengineering, microbial fermentation, protein structure, drug agricultural and environmental industries. design and the development of antimicrobials and vaccines. The programme encourages the critical assessment of current developments in areas of Cell Biology biological interest. Modern cell biology is a dynamic discipline that combines the interests and techniques of many Biotechnology scientific fields. Cell biologists investigate the Biotechnology is concerned with industrial basic structural and functional units of life, the and biomedical applications of fundamental cells that compose all living organisms. They aim knowledge derived from biology. This covers to understand: cellular structure, composition many facets from making useful products and regulation, the organelles that cells contain, using microbial, plant or animal cells to using cell growth, nuclear and cellular division, and bioinformatics and structural biology to design cell death. Understanding how cells work is new drugs. Biotechnology is an exciting area fundamental to many areas of biology and is of with new developments each year in areas that particular importance to fields such as cancer affect us all. -
BCH 6746: Structural Biology Course Prerequisites: CRN 12063 Section 001, 3 Credit Hours
Please note: Each college and department may have their own requirements, in addition to those stated in the Syllabus Guidelines. BCH 6746: Structural Biology Course Prerequisites: CRN 12063 Section 001, 3 Credit hours College of Arts and Sciences, CMMB COURSE SYLLABUS Insert USF Logo here Instructor Name: Yu Chen Semester/Term & Year: Spring 2019 Class Meeting Days: TR Class Meeting Time: 11:00 – 12:20 pm Class Meeting Location: MDC 1507 Lab Meeting Location: N/A Delivery Method: Lecture I. Welcome! II. University Course Description The theory and application of modern physical biochemical techniques. III. Course Objectives This course focuses on relating theoretical concepts and experimental approaches to a wide range of potential research problems in the area of structural biology. The course aims to provide a solid foundation and breadth of understanding in structural biology that will facilitate application to current and future research problems. IV. Course Purpose Major Topics: Introduction to Structural Biology; From Structure to Function I; From Structure to Function II; From Structure to Function III; From Structure fo Function IV; Control of Protein Function I; Strategies for Protein Separation; Strategies for Protein Identification; Chemical and Immunochemical Probes of Structure; Methods in Structural Bio I, II, II; Structure Determination I, II, III, IV; Control of Protein Function II, III, IV V. Learning Outcomes Students will gain an understanding of the basic science of Protein Structure, including first principles of the physical interactions that maintain proteins and the mechanisms that make them tic. They will also learn about different techniques and experimental approaches that represent the state-of-the-art and are widely used in the study of proteins. -
MATHEMATICAL TECHNIQUES in STRUCTURAL BIOLOGY Contents 0. Introduction 4 1. Molecular Genetics: DNA 6 1.1. Genetic Code 6 1.2. T
MATHEMATICAL TECHNIQUES IN STRUCTURAL BIOLOGY J. R. QUINE Contents 0. Introduction 4 1. Molecular Genetics: DNA 6 1.1. Genetic code 6 1.2. The geometry of DNA 6 1.3. The double helix 6 1.4. Larger organization of DNA 7 1.5. DNA and proteins 7 1.6. Problems 7 2. Molecular Genetics: Proteins 10 2.1. Amino Acids 10 2.2. The genetic code 10 2.3. Amino acid template 11 2.4. Tetrahedral geometry 11 2.5. Amino acid structure 13 2.6. The peptide bond 13 2.7. Protein structure 14 2.8. Secondary structure 14 3. Frames and moving frames 19 3.1. Basic definitions 19 3.2. Frames and gram matrices 19 3.3. Frames and rotations 20 3.4. Frames fixed at a point 20 3.5. The Frenet Frame 20 3.6. The coiled-coil 22 3.7. The Frenet formula 22 3.8. Problems 24 4. Orthogonal transformations and Rotations 25 4.1. The rotation group 25 4.2. Complex form of a rotation 28 4.3. Eigenvalues of a rotation 28 4.4. Properties of rotations 29 4.5. Problems 30 5. Torsion angles and pdb files 33 5.1. Torsion Angles 33 5.2. The arg function 34 5.3. The torsion angle formula 34 5.4. Protein torsion angles. 35 5.5. Protein Data Bank files. 35 1 2 J. R. QUINE 5.6. Ramachandran diagram 36 5.7. Torsion angles on the diamond packing 37 5.8. Appendix, properties of cross product 38 5.9. Problems 38 6. -
Mirna Detection Using a Rolling Circle Amplification and RNA
biosensors Article MiRNA Detection Using a Rolling Circle Amplification and RNA-Cutting Allosteric Deoxyribozyme Dual Signal Amplification Strategy Chenxin Fang, Ping Ouyang, Yuxing Yang, Yang Qing, Jialun Han, Wenyan Shang, Yubing Chen and Jie Du * State Key Laboratory of Marine Resource Utilization in South China Sea, College of Materials Science and Engineering, Hainan University, Haikou 570228, China; [email protected] (C.F.); [email protected] (P.O.); [email protected] (Y.Y.); [email protected] (Y.Q.); [email protected] (J.H.); [email protected] (W.S.); [email protected] (Y.C.) * Correspondence: [email protected] Abstract: A microRNA (miRNA) detection platform composed of a rolling circle amplification (RCA) system and an allosteric deoxyribozyme system is proposed, which can detect miRNA-21 rapidly and efficiently. Padlock probe hybridization with the target miRNA is achieved through complementary base pairing and the padlock probe forms a closed circular template under the action of ligase; this circular template results in RCA. In the presence of DNA polymerase, RCA proceeds and a long chain with numerous repeating units is formed. In the presence of single-stranded DNA (H1 and H2), multi-component nucleic acid enzymes (MNAzymes) are formed that have the ability to cleave substrates. Finally, substrates containing fluorescent and quenching groups and magnesium ions are added to the system to activate the MNAzyme and the substrate cleavage reaction, thus achieving fluorescence intensity amplification. The RCA–MNAzyme system has dual signal amplification and presents a sensing platform that demonstrates broad prospects in the analysis and detection of Citation: Fang, C.; Ouyang, P.; Yang, nucleic acids. -
Manipulation of Gene Expression in Zebrafish Using Caged Circular Morpholino Oligomers Yuan Wang, Li Wu, Peng Wang, Cong Lv, Zhenjun Yang and Xinjing Tang*
Published online 22 September 2012 Nucleic Acids Research, 2012, Vol. 40, No. 21 11155–11162 doi:10.1093/nar/gks840 Manipulation of gene expression in zebrafish using caged circular morpholino oligomers Yuan Wang, Li Wu, Peng Wang, Cong Lv, Zhenjun Yang and Xinjing Tang* State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, China Received May 18, 2012; Revised August 12, 2012; Accepted August 14, 2012 ABSTRACT strategy with the attachment of multiple caging moieties to the nucleobases or the backbone of phosphate groups. Morpholino oligomers (MOs) have been widely used Ando et al. caged a green fluorescent protein (GFP) to knock down specific genes in zebrafish, but their mRNA and a DNA plasmid through non-specific constitutive activities limit their experimental appli- labeling of the backbone phosphates approximately once cations for studying a gene with multiple functions every 35 bases with coumarin-based photolabile protecting or within a gene network. We report herein a new groups. These caged mRNA and DNA constructs enabled design and synthesis of caged circular MOs (caged the photoregulation of GFP expression in zebrafish and cMOs) with two ends linked by a photocleavable subsequent study of the role of lhx2 in zebrafish forebrain moiety. These caged cMOs were successfully used growth (49,52). More recently, Deiters et al. reported to photomodulate b-catenin-2 and no tail expres- morpholino oligomers (MOs) with multiple photocaged sion in zebrafish embryos. monomeric building blocks and demonstrated the utility of these caged MOs in light-activated control of gene function in zebrafish embryos (26). -
Conditional Deoxyribozyme−Nanoparticle Conjugates For
www.acsami.org Research Article Conditional Deoxyribozyme−Nanoparticle Conjugates for miRNA- Triggered Gene Regulation Jiahui Zhang, Rong Ma, Aaron Blanchard, Jessica Petree, Hanjoong Jo,* and Khalid Salaita* Cite This: ACS Appl. Mater. Interfaces 2020, 12, 37851−37861 Read Online ACCESS Metrics & More Article Recommendations *sı Supporting Information ABSTRACT: DNA−nanoparticle (NP) conjugates have been used to knockdown gene expression transiently and effectively, making them desirable tools for gene regulation therapy. Because DNA−NPs are constitutively active and are rapidly taken up by most cell types, they offer limited control in terms of tissue or cell type specificity. To take a step toward solving this issue, we incorporate toehold-mediated strand exchange, a versatile molec- ular programming modality, to switch the DNA−NPs from an inactive state to an active state in the presence of a specific RNA input. Because many transcripts are unique to cell subtype or disease state, this approach could one day lead to responsive nucleic acid therapeutics with enhanced specificity. As a proof of concept, we designed conditional deoxyribozyme−nanoparticles (conditional DzNPs) that knockdown tumor necrosis factor α (TNFα) mRNA upon miR-33 triggering. We demonstrate toehold- mediated strand exchange and restoration of TNFα DNAzyme activity in the presence of miR-33 trigger, with optimization of the preparation, configuration, and toehold length of conditional DzNPs. Our results indicate specific and strong ON/OFF response of conditional DzNPs to the miR-33 trigger in buffer. Furthermore, we demonstrate endogenous miR-33-triggered knockdown of TNFα mRNA in mouse macrophages, implying the potential of conditional gene regulation applications using these DzNPs. -
The Institute of Botany
FEATURE ARTICLE Taiwan’s Academia Sinica Forges Ahead Research in the life sciences has expanded and improved, and is conforming to international standards institutes and research projects, to promote academic collaboration between Taiwan and other countries, and to make plans for academic development when requested by the government. It is also responsible for nominating three candidates for the presidency when the president vacates, as well as formulation of rules pertaining to the Academia. The Central Advisory Committee consists of chairpersons of the advisory committee of the individual institutes, and two to three specialists from each of the Academia’s three divisions. One of the vice presidents of the Academia serves as its chairperson. The committee recruits national and international specialists for the Academia and also creates long-term interdisciplinary research plans. It is also he development of science and 188 associate research fellows, 134 responsible for evaluating and promoting T technology has been given much assistant research fellows, 123 assistant inter-institutional large-scale research importance by the Taiwan government in fellows, and 20 research assistants. projects, evaluating applications of recent years. This can be seen from the postdoctoral researchers, and selecting Organization increased expenditure on science and winners for the Academia’s annual technology, and the annual increase in The Academia is headed by Dr. Yuan- awards for outstanding publications by national R&D budget. The government Tseh Lee, its president. Dr. Lee is the junior research faculties. is determined to improve the quality of 1986 Nobel Laureate in Chemistry. He Division of Life Sciences research carried out in the country. -
Journal of Molecular Biology
JOURNAL OF MOLECULAR BIOLOGY AUTHOR INFORMATION PACK TABLE OF CONTENTS XXX . • Description p.1 • Audience p.2 • Impact Factor p.2 • Abstracting and Indexing p.2 • Editorial Board p.2 • Guide for Authors p.6 ISSN: 0022-2836 DESCRIPTION . Journal of Molecular Biology (JMB) provides high quality, comprehensive and broad coverage in all areas of molecular biology. The journal publishes original scientific research papers that provide mechanistic and functional insights and report a significant advance to the field. The journal encourages the submission of multidisciplinary studies that use complementary experimental and computational approaches to address challenging biological questions. Research areas include but are not limited to: Biomolecular interactions, signaling networks, systems biology Cell cycle, cell growth, cell differentiation Cell death, autophagy Cell signaling and regulation Chemical biology Computational biology, in combination with experimental studies DNA replication, repair, and recombination Development, regenerative biology, mechanistic and functional studies of stem cells Epigenetics, chromatin structure and function Gene expression Receptors, channels, and transporters Membrane processes Cell surface proteins and cell adhesion Methodological advances, both experimental and theoretical, including databases Microbiology, virology, and interactions with the host or environment Microbiota mechanistic and functional studies Nuclear organization Post-translational modifications, proteomics Processing and function of biologically