Purine nucleotide cycle: The Purine Nucleotide Cycle is a metabolic pathway in which fumarate is generated from aspartate in order to increase the concentration of Krebs cycle intermediates.Salway, J.PyrazolopyrimidineNTP 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.Uridine triphosphateOrotic acidOrotate phosphoribosyltransferasePyrC leader: In molecular biology, the PyrC leader is a cis-regulatory RNA element found at the 5' of the PyrC mRNA in Enterobacteria. The PyrC gene encodes Dihydroorotase, an enzyme involved in pyrimidine biosynthesis.Polyoxins: Polyoxins are a group of nucleoside antibiotics composed of heterocyclic moieties containing nitrogen. An example is Polyoxin B.Cis-acting replication element: Cis-acting replication elements brings together the 5' and 3' ends during replication of positive sense single stranded RNA viruses (for example Picornavirus, Flavivirus, coronavirus, togaviruses, Hepatitis C virus) and double stranded RNA viruses (for example rotavirus and reovirus).Aspartate carbamoyltransferase: Aspartate carbamoyltransferase (also known as aspartate transcarbamoylase or ATCase) catalyzes the first step in the pyrimidine biosynthetic pathway ().PyrimidoneOrotidine 5'-phosphate decarboxylasePyrimidine metabolism: Pyrimidine biosynthesis occurs both in the body and through organic synthesis.Uracil in DNA: DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms.Dihydroorotate dehydrogenase (quinone): Dihydroorotate dehydrogenase (quinone) (, dihydroorotate:ubiquinone oxidoreductase, (S)-dihydroorotate:(acceptor) oxidoreductase, (S)-dihydroorotate:acceptor oxidoreductase, DHOdehase (ambiguous), DHOD (ambiguous), DHODase (ambiguous), DHODH) is an enzyme with system name (S)-dihydroorotate:quinone oxidoreductase. This enzyme catalyses the following chemical reactionCytidineRNTP: 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.Arabinosyltransferase: In molecular biology, an arabinosyltransferase is a transferase enzyme acting upon arabinose."Reconstitution of functional mycobacterial arabinosyltransferase AftC proteoliposome and assessment of decaprenylphosphorylarabinose analogues as arabinofuranosyl donors.SurE, survival protein E: In molecular biology, the protein domain surE refers to survival protein E. It was originally found that cells that did not contain this protein, could not survive in the stationary phase, at above normal temperatures, and in high-salt media.Coles PhillipsCarbamoyl phosphate synthetasePurineDeoxycytidine monophosphateMercurial diureticInhibitor protein: The inhibitor protein (IP) is situated in the mitochondrial matrix and protects the cell against rapid ATP hydrolysis during momentary ischaemia. In oxygen absence, the pH of the matrix drops.Burst 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".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.N-(p-amylcinnamoyl)anthranilic acidSymmetry 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.Nucleoside analogue: Nucleoside analogues are nucleosides which contain a nucleic acid analogue and a sugar. Nucleotide analogs are nucleotides which contain a nucleic acid analogue, a sugar and one to three phosphate groups.Specificity 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.Protein primary structure: The primary structure of a peptide or protein is the linear sequence of its amino acid structural units, and partly comprises its overall biomolecular structure. By convention, the primary structure of a protein is reported starting from the amino-terminal (N) end to the carboxyl-terminal (C) end.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.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.Phosphotransferase: Phosphotransferases are a category of enzymes (EC number 2.7) that catalyze phosphorylation reactions.Energy charge: Energy charge is an index used to measure the energy status of biological cells. It is related to ATP, ADP and AMP concentrations.WGAViewer: WGAViewer is a bioinformatics software tool which is designed to visualize, annotate, and help interpret the results generated from a genome wide association study (GWAS). Alongside the P values of association, WGAViewer allows a researcher to visualize and consider other supporting evidence, such as the genomic context of the SNP, linkage disequilibrium (LD) with ungenotyped SNPs, gene expression database, and the evidence from other GWAS projects, when determining the potential importance of an individual SNP.Thymidine diphosphateUVB-induced apoptosis: UVB-induced apoptosis is the programmed cell death of cells that become damaged by ultraviolet rays. This is notable in skin cells, to prevent melanoma.Reaction coordinateEthyl groupYjdF RNA motifDNA 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.Ligation-independent cloning: Ligation-independent cloning (LIC) is a form of molecular cloning that is able to be performed without the use of restriction endonucleases or DNA ligase. This allows genes that have restriction sites to be cloned without worry of chopping up the insert.Base excision repair: frame|right|Basic steps of base excision repair|Basic steps of base excision repair