Nucleic acid structure characterization by small angle xray. From the biochemical laboratory of the harvard medical school. Describe the primary structure of dna and rna and secondary and. They are major components of all cells 15% of the cells dry weight.
Structural properties of nucleic acid building blocks function of dna and rna dna and rna are chainlike macromolecules that function in the storage and transfer of genetic information. It is often called the control center because it controls all the activities of the cell including cell reproduction, and heredity. Current protocols in nucleic acid chemistry wiley online. Current protocols in nucleic acid chemistry edited by serge l. Chapter 2 structures of nucleic acids nucleic acids. Oct 16, 2014 nucleic acid first discovered in the nuclei of cells. Short singlestranded nucleic acids called aptamers are widely being explored as recognition molecules of high affinity and specificity for binding a wide range of target molecules, particularly protein targets. Nucleic acid binding under appropriate conditions nucleic acid will bind to matrices. Current protocols in nucleic acid chemistry article in current protocols in nucleic acid chemistry edited by serge l. Silica cellulose ion exchange manipulating binding conditions can affect the efficiency of nucleic acid binding rna vs. From longman dictionary of contemporary english nucleic acid nu.
The purity of a nucleic acid sample can be assessed by calculating the ratio between absorbances at 260 nm and 280 nm. Each nucleotide is put together from three building blocks. Two oligonucleotides or their analogues are linked via chemical groups to precursors of chemical. Although nucleic acid chemistry appears to be a mature part of organic and bioorganic chemistry, the many questions that are still being raised by research in biology and chemical biology give sufficient motivation to continue to synthesize new nucleic acid probes and thereby further develop nucleic acid chemistry. Hydrogen bonding interactions are especially important in nucleic acids. Learn organic chemistry nucleic acids with free interactive flashcards. Discusses nucleic acid structure, and also describes techniques for manipulating and analyzing nucleic acids, including gel electrophoresis, pcr, and dna sequencing. The key concept is that some form of nucleic acid is the genetic material, and these encode the macromolecules that function in the cell. Early investigations focused on the stability and specificity of multistrand polynucleotide complexes, then gradually on their interaction with other molecules, particularly proteins.
Identify phosphoester bonding patterns and nglycosidic bonds within nucleotides. Nucleic acids are essential to life, and this quizworksheet will help you check your understanding of many of the key terms and concepts relating to them. A nucleic acid is a polymer in which the monomer units are nucleotides. Request pdf current protocols in nucleic acid chemistry peptideoligonucleotide conjugates pocs are molecular chimeras composed of a nucleic acid moiety covalently attached to a polypeptide.
Nucleic acid worksheet for 5th 12th grade lesson planet. For example, the series uraciluracilguanine uug on an mrna chain is a codon directing incorporation. Below the 3d and 2d structure of a gquadruplex is illustrated. The main advantage of natchemistry natc is that it allows one to perform the chemical reaction as an intramolecular reaction. Nucleic acid is a polymer of nucleotide held by 3 and 5 phosphate bridges. Nucleic acids in chemistry and biology rsc publishing. The nucleus contains the cells dna, which makes up the genome. Nucleic acids a polymer formed by linking nucleotides together. These building blocks are required for the synthesis of 2deoxy2fluoroarabinonucleic acid 2f. Nucleic acids are biological macromolecules containing oxygen, hydrogen, carbon, nitrogen and phosphorus. Rna or ribonucleic acid is found in the nucleus, and some other parts of the cell such as mitochondria and chloroplasts nucleotides nucleic acids consist of a large number of joined to form. Nucleic acids dna and rna perform a variety of crucial functions in organisms.
The structure, function and reactions of nucleic acids are central to molecular biology and are crucial for the understanding of complex biological processes involved. Know the three chemical components of a nucleotide. In vitro selection using modified or unnatural nucleotides ncbi. Dna is metabolically and chemically more stable than rna. Physical chemistry of nucleic acids and their complexes. Current protocols in nucleic acid chemistry is the comprehensive resource for detailed protocols related to the synthesis, modification, and analysis of modified and unmodified nucleosides, nucleotides, oligonucleotides, and nucleic acids. Written by leading experts, with extensive teaching experience, this new edition provides some updated and expanded coverage of nucleic acid chemistry, reactions and. This course will examine topics related to advanced studies in nucleic acid chemistry and peptide chemistry. This unit attempts to provide a reasonably complete inventory of over 280 solid supports available to oligonucleotide chemists. This unit attempts to provide a reasonably complete inventory of.
Learn vocabulary, terms, and more with flashcards, games, and other study tools. Ndb, department of chemistry, rutgers university, 610 taylor road, piscataway, nj 088548087, usa. Read this article to get information about nucleic acids, its structure, size, types and significance. Structures of nucleic acids some genomes are rna some viruses have rna genomes. Nucleic acids dna the double helix recall that the nucleus is a small spherical, dense body in a cell. They control the important biosynthetic activities of the cell and carry hereditary information from generation to generation. Current protocols in nucleic acid chemistry journals ncbi. This nucleic acid worksheet is suitable for 5th 12th grade. Nucleic acids are made up of basic units called nucleotides which bind together by covalent bonds to form a polynucleotide or the nucleic acid.
This ratio a 260a 280 is used to estimate purity because proteins absorb more strongly at 280 nm. Nucleic acids dna and rna 2 types of nucleic acids 1. Here the information content of the database as well as. This method differs from others in the use of barium hydroxide as the alkali which with sodium chloride is used for the extrac. This volume discusses how chemistry can add new frontiers to the field of nucleic acids in molecular medicine, biotechnology and nanotechnology and is not only an invaluable source of information to chemists, biochemists and life scientists but will also stimulate future research. Chromosomes are microscopic, threadlike strands composed of the chemical dna short for deoxyribonucleic acid. Protein and nucleic acid chemistry mrc laboratory of. What are the three components of this monomer and draw the general structure. Current protocols in nucleic acid chemistry request pdf. Request pdf current protocols in nucleic acid chemistry this overview summarizes methodology used for the synthesis of nucleoside mono, di, and triphosphates. Nucleic acid structure characterization by small angle xray scattering. Saxs is particularly useful for the investigation of nucleic acids, which scatter.
The selection of topics will vary to serve the interests of the students enrolled. Current protocols in nucleic acid chemistry article pdf available in current protocols in nucleic acid chemistry edited by serge l. The objectives of the division are to gain insights into human biology and disease at the molecular level with a view to developing strategies for diagnosis and treatment. A, t, c, g, u nucleotide nucleotide nucleotide nucleotide phosphate sugar n base nitrogen bases im the a,t,c,g or u part. The main advantage of nat chemistry natc is that it allows one to perform the chemical reaction as an intramolecular reaction. Other functions of nucleotides structure of nucleotides structure of nucleotides major purine bases of nucleic acids major pyrimidine bases of nucleic acids conformations of ribose conformations of ribose deoxyribonucleotides of nucleic acids ribonucleotides. Nonnatural nucleic acids methods and protocols nathaniel. The gquadruplex structure is stabilized by hydrogen bonds between the edges of the bases and chelation with a metal e. Describe the makeup of nucleosides, nucleotides, oligonucleotides, and polynucleotides. Request pdf current protocols in nucleic acid chemistry various types of minor groove binders have been attached to synthetic oligodeoxynucleotides, and the interactions of. Abstract the human genome is highly susceptible to various modifications, lesions, and damage. Nucleic acids are the main informationcarrying molecules of the cell and play a central role in determining the inherited characteristics of every living thing.
Draw the open chain of ribose and the open chain of. Thus, nucleic acids are macromolecules of the utmost biological. The polymer properties of single strand polynucleotides were, at that time, another important focus of nucleic acid physical chemistry. Each word, or codon in the mrna sentence is a series of three ribonucleotides that code for a specific amino acid. The video focuses on nucleic acids and their relationship to dna and rna. Incorporation of modified nucleotides into in vitro rna or dna. Nucleic acids are polymers that consist of nucleotide residues. What are the two types of nucleic acids, and what are their main differences. Nucleic acid structure depends on the sequence of bases andon the type of ribose sugar ribose, or 2deoxyribose. If all the dna in a typical mammalian cell were stretched out end to end, it would extend more than 2 m. Studies of the physical properties of nucleic acids began almost immediately following the discovery of the dna structure. Request pdf current protocols in nucleic acid chemistry various types of minor groove binders have been attached to synthetic oligodeoxynucleotides, and the interactions of these conjugates. Reviews methods used to synthesize nucleosides, nucleotides and oligonucleotides, and chemical reactions that lead to modifications of nucleic acids. This unit describes in detail the preparation of protected 2deoxy2fluoroarabinonucleosides.
Uracil udp metabolic carrier of glucose, glucuronic acid and galactose. Interstrand hbonding between dna bases watsoncrick base pairing. In this chromosome instructional activity students complete a crossword puzzle by answering questions on dna, nucleic acids, nucleotides and rna. Thus, nucleic acids are macromolecules of the utmost biological importance. Deoxyribonucleic acid dna the nucleic acid that stores genetic information.
This volume contains 29 engrossing chapters contributed by worldwide, leading research groups in the field of chemical biology. Other functions of nucleotides structure of nucleotides structure of nucleotides major purine bases of nucleic acids major pyrimidine bases of nucleic acids conformations of ribose conformations of ribose deoxyribonucleotides of. Objectives by the end of lecture the student should. These are important organic substances found in nucleus and cytoplasm. Choose from 500 different sets of organic chemistry nucleic acids flashcards on quizlet. Nucleic acid templated chemistry natc, or dnatemplated chemistry, is a tool used in the controlled synthesis of chemical compounds. We now know that nucleic acids are found throughout a cell, not just in the nucleus, the name nucleic acid is still used for such materials. These short and simple lessons explore topics like dna. Revised and updated nucleic acids in chemistry and biology 3rd edition discusses in detail, both the chemistry and biology of nucleic acids and brings rna into parity with dna. Chromatin is the name given to dna complexed with proteins histones the nucleolus is a region where the. In this unit we present general protocols for sample preparation, data. Solidphase supports for oligonucleotide synthesis current.
In consideration of the accumulated experience over the past few years in presenting nmr structures, the time appeared to be appropriate for a formal examination of. Nucleic acid worksheet monroe township school district. Dna or deoxyribonucleic acid forms the and is found only in the of cells 2. It is the resource for designing and running successful research projects in the rapidly growing and changing field of nucleic. Nucleic acid, naturally occurring chemical compound that is capable of being broken down to yield phosphoric acid, sugars, and organic bases. Nucleic acid first discovered in the nuclei of cells.
687 1565 1590 1305 1260 467 558 1297 158 226 84 370 1279 758 492 1213 989 332 1558 1037 1260 1526 406 480 152 1468 42 457 907 1582 763 219 188 780 961 449 1462 1234 394 1032 1368 98 96