Polynucleotide: A polynucleotide molecule is a biopolymer composed of 13 or more nucleotide monomers covalently bonded in a chain. DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are examples of polynucleotides with distinct biological function.S1 domainMessenger RNA decapping: The process of messenger RNA decapping consists of hydrolysis of the 5' cap structure on the RNA exposing a 5' monophosphate. In eukaryotes, this 5' monophosphate is a substrate for the 5' exonuclease Xrn1 and the mRNA is quickly destroyed.Nucleic acid structure: Nucleic acid structure refers to the structure of nucleic acids such as DNA and RNA. Chemically speaking, DNA and RNA are very similar.List of strains of Escherichia coli: Escherichia coli is a well studied bacterium that was first identified by Theodor Escherich, after whom it was later named.Abscription: During normal transcription, RNA polymerase transcribes a number of short nonproductive oligonucleotides, and this process is called abortive transcription. The trapped RNAPs have been named abscriptases and the synthesis of specific length oligonucleotides called abscription.Hyperchromicity: Hyperchromicity is the increase of absorbance (optical density) of a material. The most famous example is the hyperchromicity of DNA that occurs when the DNA duplex is denatured.Extension Poly(A) Test: The extension Poly(A) Test (ePAT) describes a method to determine the poly(A) tail lengths of mRNA molecules. It was developed and described by A.Ribonuclease T2: Ribonuclease T2 (, ribonuclease II, base-non-specific ribonuclease, nonbase-specific RNase, RNase (non-base specific), non-base specific ribonuclease, nonspecific RNase, RNase Ms, RNase M, RNase II, Escherichia coli ribonuclease II, ribonucleate nucleotido-2'-transferase (cyclizing), acid ribonuclease, RNAase CL, Escherichia coli ribonuclease I' ribonuclease PP2, ribonuclease N2, ribonuclease M, acid RNase, ribonnuclease (non-base specific), ribonuclease (non-base specific), RNase T2, ribonuclease PP3, ribonucleate 3'-oligonucleotide hydrolase, ribonuclease U4) is an enzyme. This enzyme catalyses the following chemical reactionTransfer-messenger RNA: Transfer-messenger RNA (abbreviated tmRNA, also known as 10Sa RNA and by its genetic name SsrA) is a bacterial RNA molecule with dual tRNA-like and messenger RNA-like properties. The tmRNA forms a ribonucleoprotein complex (tmRNP) together with Small Protein B (SmpB), Elongation Factor Tu (EF-Tu), and ribosomal protein S1.DNA condensation: DNA condensation refers to the process of compacting DNA molecules in vitro or in vivo. Mechanistic details of DNA packing are essential for its functioning in the process of gene regulation in living systems.Enterobacteria phage G4: Enterobacteria phage G4 is a bacteriophage capable of infecting susceptible bacterial cells. The phage was originally isolated from samples of raw sewage and infects E.YjdF RNA motifBurst kinetics: Burst kinetics is a form of enzyme kinetics that refers to an initial high velocity of enzymatic turnover when adding enzyme to substrate. This initial period of high velocity product formation is referred to as the "Burst Phase".Clostridium thermocellum: Clostridium thermocellum is an anaerobic, thermophilic bacterium. C.Symmetry element: A symmetry element is a point of reference about which symmetry operations can take place. In particular, symmetry elements can be centers of inversion, axes of rotation and mirror planes.X-ray magnetic circular dichroismEnergy charge: Energy charge is an index used to measure the energy status of biological cells. It is related to ATP, ADP and AMP concentrations.Ribonuclease L: Ribonuclease L or RNase L (for latent), known sometimes as ribonuclease 4 or 2'-5' oligoadenylate synthetase-dependent ribonuclease — is an interferon (IFN)-induced ribonuclease which, upon activation, destroys all RNA within the cell (both cellular and viral). RNase L is an enzyme that in humans is encoded by the RNASEL gene.Phosphotransferase: Phosphotransferases are a category of enzymes (EC number 2.7) that catalyze phosphorylation reactions.Ethidium homodimer assay: An ethidium homodimer assay can be used to detect dead or dying cells. Ethidium homodimer is a membrane-impermeable fluorescent dye which binds to DNA.T-box leaderSticky and blunt ends: DNA end or sticky end refers to the properties of the end of a molecule of DNA or a recombinant DNA molecule. The concept is important in molecular biology, especially in cloning or when subcloning inserts DNA into vector DNA.Bromine dioxideC4H7N3O3Ethyl groupSizofiranL-olivosyl-oleandolide 3-O-methyltransferase: L-olivosyl-oleandolide 3-O-methyltransferase (, OleY) is an enzyme with system name S-adenosyl-L-methionine:L-olivosyl-oleandolide B 3-O-methyltransferase. This enzyme catalyses the following chemical reactionNon-homologous end joining: Non-homologous end joining (NHEJ) is a pathway that repairs double-strand breaks in DNA. NHEJ is referred to as "non-homologous" because the break ends are directly ligated without the need for a homologous template, in contrast to homology directed repair, which requires a homologous sequence to guide repair.DNA binding site: DNA binding sites are a type of binding site found in DNA where other molecules may bind. DNA binding sites are distinct from other binding sites in that (1) they are part of a DNA sequence (e.Coles PhillipsArmitage–Doll multistage model of carcinogenesis: The Armitage–Doll model is a statistical model of carcinogenesis, proposed in 1954 by Peter Armitage and Richard Doll, which suggested that a sequence of multiple distinct genetic events preceded the onset of cancer. The original paper has recently been reprinted with a set of commentary articles.Thymidine triphosphateSpecificity constant: In the field of biochemistry, the specificity constant (also called kinetic efficiency or k_{cat}/K_{M}), is a measure of how efficiently an enzyme converts substrates into products. A comparison of specificity constants can also be used as a measure of the preference of an enzyme for different substrates (i.DeoxyribonucleasePermissive temperature: The permissive temperature is the temperature at which a temperature sensitive mutant gene product takes on a normal, functional phenotype.http://www.RNTP: A ribonucleoside tri-phosphate (rNTP) is a ribonucleoside with 3 phosphate groups. rNTPs are the building blocks of RNA synthesis as well as the synthesis of primers in DNA replication.Magnesium acetateBuoyant density ultracentrifugation: Buoyant density centrifugation uses the concept of buoyancy to separate molecules in solution. Usually a caesium chloride (CsCl) solution is used, but in the general case it's usually approximately the same density as the molecules that are to be centrifuged.CpG OligodeoxynucleotideMolar mass distribution: In linear polymers the individual polymer chains rarely have exactly the same degree of polymerization and molar mass, and there is always a distribution around an average value. The molar mass distribution (or molecular weight distribution) in a polymer describes the relationship between the number of moles of each polymer species (Ni) and the molar mass (Mi) of that species.Tritium illumination: Tritium illumination is the use of gaseous tritium, a radioactive isotope of hydrogen, to create visible light. Tritium emits electrons through beta decay, and, when they interact with a phosphor material, fluorescent light is created, a process called radioluminescence.Manganese deficiency (plant): Manganese (Mn) deficiency is a plant disorder that is often confused with, and occurs with, iron deficiency. Most common in poorly drained soils, also where organic matter levels are high.Cryptic unstable transcript: Cryptic Unstable Transcripts (CUTs) are a subset of non-coding RNAs (ncRNAs) that are produced from intergenic and intragenic regions. CUTs were first observed in S.Exonuclease: Exonucleases are enzymes that work by cleaving nucleotides one at a time from the end (exo) of a polynucleotide chain. A hydrolyzing reaction that breaks phosphodiester bonds at either the 3’ or the 5’ end occurs.NTP binding site: An NTP binding site is a type of binding site found in nucleoside monophosphate (NMP) kinases, N can be adenosine or guanosine. A P-loop is one of the structural motifs common for nucleoside triphosphate (NTP) binding sites, it interacts with the bound nucleotide's phosphoryl groups.Nucleoside-triphosphate-hexose-1-phosphate nucleotidyltransferase: Nucleoside-triphosphate-aldose-1-phosphate nucleotidyltransferase (, NDP hexose pyrophosphorylase, hexose 1-phosphate nucleotidyltransferase, hexose nucleotidylating enzyme, nucleoside diphosphohexose pyrophosphorylase, hexose-1-phosphate guanylyltransferase, GTP:alpha-D-hexose-1-phosphate guanylyltransferase, GDP hexose pyrophosphorylase, guanosine diphosphohexose pyrophosphorylase, NTP:hexose-1-phosphate nucleotidyltransferase) is an enzyme with system name NTP:alpha-D-aldose-1-phosphate nucleotidyltransferase. This enzyme catalyses the following chemical reactionINPP5E: 72 kDa inositol polyphosphate 5-phosphatase, also known as phosphatidylinositol-4,5-bisphosphate 5-phosphatase or Pharbin, is an enzyme that in humans is encoded by the INPP5E gene.Momordin (saponin): Momordin is one of several saponins derived from oleanolic acid, a triterpenoid. These chemical compounds are found in some plants of the Momordica genus, which includes the bitter melon (M.Sodium hexametaphosphateSilent mutation: Silent mutations are mutations in DNA that do not significantly alter the phenotype of the organism in which they occur. Silent mutations can occur in non-coding regions (outside of genes or within introns), or they may occur within exons.SpermineMastic (plant resin): Chios Mastic Mastiha () is a resin obtained from the mastic tree (Pistacia lentiscus). In pharmacies and nature shops, it is called "Arabic gum" (not to be confused with gum arabic) and "Yemen gum".Base excision repair: frame|right|Basic steps of base excision repair|Basic steps of base excision repairGelonin: Gelonin is a protein toxin of approximately 30 kDa found in the seeds of the Himalayan plant Gelonium multiflorum. In cell-free systems gelonin exerts powerful N-glycosidase activity on the 28S rRNA unit of eukaryotic ribosomes by cleaving out adenine at the 4324 site.Alkaliphile: Alkaliphiles are a class of extremophilic microbes capable of survival in alkaline (pH roughly 8.5-11) environments, growing optimally around a pH of 10.T7 DNA polymerase: T7 DNA polymerase is an enzyme used during the DNA replication of the T7 bacteriophage. During this process, the DNA polymerase “reads” existing DNA strands and creates two new strands that match the existing ones.Reaction coordinateMature messenger RNA: Mature messenger RNA, often abbreviated as mature mRNA is a eukaryotic RNA transcript that has been spliced and processed and is ready for translation in the course of protein synthesis. Unlike the eukaryotic RNA immediately after transcription known as precursor messenger RNA, it consists exclusively of exons, with all introns removed.DNA demethylation: DNA demethylation is the process of removal of a methyl group from nucleotides in DNA. DNA demethylation could be passive or active.