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Methods for identifying microRNA binding motifs
Methods for identifying microRNA binding motifs

The synthesis of peptides and proteins containing non
The synthesis of peptides and proteins containing non

... The wish to generate designer proteins that rival the properties of their natural counterparts has been a long sought after goal. The complexities involved in the de novo design of proteins are overwhelming and current computational methods do not permit any great degree of freehand protein design. ...
Whole-transcriptome RNAseq analysis from minute amount of total
Whole-transcriptome RNAseq analysis from minute amount of total

... system, TruSeqTM RNA sample preparation, which employs polyA selection for mRNA enrichment and Invitrogen’s RiboMinusTM kit which depletes rRNA. We considered the following criteria in evaluating the RNA-seq methods, some of which are described in literature (10): library complexity, the number of u ...
MedicalBiochemistry
MedicalBiochemistry

... 2. Each peptide bond is trans and planar. 3. The polypeptide is a chain of flat or planar sections connected at amino acid α-carbons. 4. The C=O and N—H groups of peptide bonds from adjacent chains point at each other and are in the same plane, so hydrogen bonding is possible between adjacent polype ...
4.3 Common carboxylic acids with practical uses . Methanoic acid
4.3 Common carboxylic acids with practical uses . Methanoic acid

... Latin butyrum = butter). It is also found in vomit, Parmesan cheese and is produced by colonic bacteria from various types of dietary fiber. A variety of contradictory claims are found in the research literature as to whether butanoic (butyric) acid in the colon increases or decreases the risk of co ...
Partial purification of fatty acid synthetase from Streptomyces
Partial purification of fatty acid synthetase from Streptomyces

... Partial purification of fatty acid synthetase from Streptomyces coelicolor mg of protein) was generally eluted in fractions Corresponding to mol.wt. 180000. A similar purification was obtained after sucrose-gradient centrifugation to give material with s20,w 8 S. Thus the synthetase migrated as a si ...
SR 52(1) 30-31
SR 52(1) 30-31

... biochemical pathway that contributes the cells from four species of bacteria. However two of the bacterial species were resistant to arsenate and two were sensitive to it. To decipher how effectively these proteins discriminate between phosphate and arsenate, the researchers placed them in solution ...
What are the intermolecular forces that lead to this compact folding
What are the intermolecular forces that lead to this compact folding

... a repeated unit of length 7 amino acids, which is called a heptad repeat. Denote those 7 positions by a through g, then position a and d are hydrophobic and define an apolar stripe, while there exist electrostatic interactions between residues at positions e and g. Prediction methods for coiled-coil ...
General base-general acid catalysis by terpenoid cyclases
General base-general acid catalysis by terpenoid cyclases

Vectors for Even Larger Genomic DNA Inserts
Vectors for Even Larger Genomic DNA Inserts

... Plasmid avoid being lost from dividing cells by carrying partitioning systems The functions involved in these systems are called par functions cis-acting site: parS trans-acting site: parA and parB ...
LIMS for the Masses - University of Alberta
LIMS for the Masses - University of Alberta

... • Limit of facile isolation/separation by many analytical methods • Excludes environmental pollutants • Most IEM indicators and other disease indicators have concentrations >1 mM • Need to draw the line somewhere ...
ADVANCING JUSTICE THROUGH DNA TECHNOLOGY
ADVANCING JUSTICE THROUGH DNA TECHNOLOGY

Analysis and Characterization of Nucleic Acids and Proteins
Analysis and Characterization of Nucleic Acids and Proteins

...  Polyclonal antibodies are products of a generalized response to a specific  antigen, usually a peptide or protein.  Polyclonal antibodies are comprised of a mixture of immunoglobulins directed at more than one epitope (molecular structure) on the antigen  Monoclonal antibodies are more difficult ...
Revision PowerPoint B2 Topic 1
Revision PowerPoint B2 Topic 1

... develop the possible structure of DNA. They used data from  other scientists and it was based on theory. • Other scientists used experiments. Rosalind Franklin and  Maurice Wilkins, working in London, used X‐ray diffraction.  • When you shine X‐rays on DNA the invisible rays bounce off  the sample a ...
LIMS for the Masses
LIMS for the Masses

... • Limit of facile isolation/separation by many analytical methods • Excludes environmental pollutants • Most IEM indicators and other disease indicators have concentrations >1 mM • Need to draw the line somewhere ...
51 - Lab Times
51 - Lab Times

... type II and only one to endonucleases. The fortype III and IV, respecmer recognise speciftively (REBASE doesn’t ic DNA sequences and Fast and accurate cuts like the ones list a single type I restrictransfer methyl groups from Edward Scissorhand. That’s tion enzyme under the to particular bases of wh ...
Lehninger-Principles-of-Biochemistry-Nelson-5th-Edition-1
Lehninger-Principles-of-Biochemistry-Nelson-5th-Edition-1

... Page: 14 Difficulty: 2 Name two functions of (a) proteins, (b) nucleic acids, (c) polysaccharides, (d) lipids. Ans: Many answers are possible including: (a) proteins function as enzymes, structural elements, signal carriers, transporters; (b) nucleic acids store and transmit genetic information and ...
DNA binding
DNA binding

... Processes that regulate gene expression in the lactose operon In the absence of inducer, the lac repressor is bound to DNA in a manner that blocks RNA polymerase from transcribing the z, y, and a genes. Thus, very little b-galactosidase, permease, or transacetylase are produced. The addition of lac ...
Title Heterochromatin Blocks Constituting the Entire
Title Heterochromatin Blocks Constituting the Entire

... primates is that of chimpanzees and bonobos.9 – 12 These species, together with humans, belong to family Hominidae (hominids) and are phylogenetically closest to humans among extant species. Interestingly, humans do not have visible subtelomeric heterochromatin blocks. Another clear example of large ...
Microbial alteration of stable nitrogen and carbon isotopic
Microbial alteration of stable nitrogen and carbon isotopic

... with growth on the other amino acids. Bacteria metabolize the amino sugar by first cleaving off the acetyl group, then deaminating the sugar. Most of the ammonia is probably fixed into biosynthetic products, and little is excreted. Glycine uptake results in an oversupply of nitrogen to the cell rela ...
Molecular Cloning and Nucleotide Sequence of the 3
Molecular Cloning and Nucleotide Sequence of the 3

... completely, recircularized with ligase and used this DNA to transform E. coli R R l . As all the ampicillin-resistant transformants were also Leu+, there should be no missing fragments. Nucleotide sequences of the 3-IMDH genes of S . cerevisiue (LEU2)and T. thermophilus (IeuB) have already been dete ...
Application Note
Application Note

... advanced. This highly reactive amine derivatization reagent can be used in an easy one step procedure. The compound reacts with amines through nucleophilic attack on the carbonyl carbon of AQC. This reaction results in the loss of N-hydroxysuccinimide (NHS) and CO2 (Fig. 1). Excess AQC is rapidly hy ...
Directional mutational pressure affects the amino acid composition
Directional mutational pressure affects the amino acid composition

... amino acids (F, L, I, M, V, Y, and W) are hydrophobic and tend to be buried on the inside of a protein; and ambivalent amino acids (all others) are neither strongly hydrophobic nor strongly hydrophilic so that they can be either external or internal. In dnaA gene, we have shown that both the frequen ...
Biochemical Screening of Pyrimidine
Biochemical Screening of Pyrimidine

... Orotic acid (uracil-4-carboxylic acid) has been the livers were quickly excised and placed in a chilled bath of isotonic saline solution. A 20 per cent homogenate in chilled shown under both in vivo and in vitro conditions, 0.25 M sucrose was made with the use of an all-glass Potterin both microorga ...
Amino Acids - Abbott Nutrition
Amino Acids - Abbott Nutrition

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Nucleic acid analogue



Nucleic acid analogues are compounds which are analogous (structurally similar) to naturally occurring RNA and DNA, used in medicine and in molecular biology research.Nucleic acids are chains of nucleotides, which are composed of three parts: a phosphate backbone, a pucker-shaped pentose sugar, either ribose or deoxyribose, and one of four nucleobases.An analogue may have any of these altered. Typically the analogue nucleobases confer, among other things, different base pairing and base stacking properties. Examples include universal bases, which can pair with all four canonical bases, and phosphate-sugar backbone analogues such as PNA, which affect the properties of the chain (PNA can even form a triple helix).Nucleic acid analogues are also called Xeno Nucleic Acid and represent one of the main pillars of xenobiology, the design of new-to-nature forms of life based on alternative biochemistries.Artificial nucleic acids include peptide nucleic acid (PNA), Morpholino and locked nucleic acid (LNA), as well as glycol nucleic acid (GNA) and threose nucleic acid (TNA). Each of these is distinguished from naturally occurring DNA or RNA by changes to the backbone of the molecule.In May 2014, researchers announced that they had successfully introduced two new artificial nucleotides into bacterial DNA, and by including individual artificial nucleotides in the culture media, were able to passage the bacteria 24 times; they did not create mRNA or proteins able to use the artificial nucleotides. The artificial nucleotides featured 2 fused aromatic rings.
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