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Regulation of Organic Metabolism, Growth, and
Regulation of Organic Metabolism, Growth, and

... many organs and tissues protein synthesis RNA synthesis DNA synthesis cell size and number increased tissue growth and increased organ size ...
de novo
de novo

... critical, as cysteine is often a limiting amino acid in de novo GSH biosynthesis. • The -glutamyl-amino acid couple also re-enters the cell by an amino acid transporter. Once in the cell the amino acid and the -glutamyl moiety are separated. The carrier amino acid is often cystine, and this proces ...
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Lecture: Fatty Acids Synthesis Recall the physiological role of
Lecture: Fatty Acids Synthesis Recall the physiological role of

... Recognize the structural features of prostaglandins, thromboxanes and leukotrienes. Identify the common starting material for these compounds. o Prostaglandins are fatty acids  20 carbon atoms  an internal, saturated 5-carbon ring  a hydroxyl group at carbon 15  a double bond between carbons 13 ...
L-Arginine A Versatile, Conditionally Essential Amino Acid
L-Arginine A Versatile, Conditionally Essential Amino Acid

... Amino acids have many functions in the body. They are the building blocks for all body proteins—structural proteins that build muscle, connective tissues, bones and other structures, and functional proteins in the form of thousands of metabolically active enzymes. Amino acids provide the body with t ...
Highlights from the Maltese Lipids Intervention: He went over his in
Highlights from the Maltese Lipids Intervention: He went over his in

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Glycerolipids and Glycerophospholipids
Glycerolipids and Glycerophospholipids

... transfers an acyl CoA to position 3. ...
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towards the synthesis of functionalised macrocyclic receptors

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Document
Document

... The nucleotide sequence in DNA determines the amino acid sequence in proteins. A single change in that DNA sequence can affect a single amino acid, and may affect the structure and function of that protein. Because all biological processes are catalyzed by either RNA or protienaceous enzymes, and be ...
投影片 1
投影片 1

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Pathophysiology of Heme Synthesis

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Solid phase peptide synthesis (SPPS), strategies, resins and
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... 6. Fate of HMG-CoA in liver mitochondria differs from that in the cytosol  Fate of HMG- CoA :  In liver mitochondria : as a substrate in ketone bodies metabolism.  HMG-CoA undergoes oxidation reaction in liver mitochondria to form acetone and 3-hydroxybutyrate.  The enzymes used are HMG-CoA synt ...
ORGANIC CHEMISTRY CURRICULUM Subject Exam(s) Credits
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high-performance gene expression
high-performance gene expression

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Pentose Phosphate Pathway

... synthesis of G6P dehydrogenase and 6‐phosphogluconate  dehydrogenase Æ increasing the rate of glucose oxidation by PPP ...
The Action of Chloramphenicol on Protein and Nucleic Acid
The Action of Chloramphenicol on Protein and Nucleic Acid

... distinction between the Gram-positive and Gram-negative species, it seems more likely that it arose from the differencesin the experimental conditions. The studies on Staphylococcus aweus were carried out under conditions which allowed the analysis of the two relevant synthetic reactions uncomplicat ...
The Action of Chloramphenicol on Protein and Nucleic Acid
The Action of Chloramphenicol on Protein and Nucleic Acid

... distinction between the Gram-positive and Gram-negative species, it seems more likely that it arose from the differencesin the experimental conditions. The studies on Staphylococcus aweus were carried out under conditions which allowed the analysis of the two relevant synthetic reactions uncomplicat ...
presentation
presentation

... • C-terminal ester needed (can be expensive/unstable) • hydrolytic side-reactions: synthesis to hydrolysis ratio (S/H ratio) ...
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Oligonucleotide synthesis



Oligonucleotide synthesis is the chemical synthesis of relatively short fragments of nucleic acids with defined chemical structure (sequence). The technique is extremely useful in current laboratory practice because it provides a rapid and inexpensive access to custom-made oligonucleotides of the desired sequence. Whereas enzymes synthesize DNA and RNA only in a 5' to 3' direction, chemical oligonucleotide synthesis does not suffer from this limitation, although it is, most often, carried out in the opposite, 3' to 5' direction. Currently, the process is implemented as solid-phase synthesis using phosphoramidite method and phosphoramidite building blocks derived from protected 2'-deoxynucleosides (dA, dC, dG, and T), ribonucleosides (A, C, G, and U), or chemically modified nucleosides, e.g. LNA, BNA.To obtain the desired oligonucleotide, the building blocks are sequentially coupled to the growing oligonucleotide chain in the order required by the sequence of the product (see Synthetic cycle below). The process has been fully automated since the late 1970s. Upon the completion of the chain assembly, the product is released from the solid phase to solution, deprotected, and collected. The occurrence of side reactions sets practical limits for the length of synthetic oligonucleotides (up to about 200 nucleotide residues) because the number of errors accumulates with the length of the oligonucleotide being synthesized. Products are often isolated by high-performance liquid chromatography (HPLC) to obtain the desired oligonucleotides in high purity. Typically, synthetic oligonucleotides are single-stranded DNA or RNA molecules around 15–25 bases in length.Oligonucleotides find a variety of applications in molecular biology and medicine. They are most commonly used as antisense oligonucleotides, small interfering RNA, primers for DNA sequencing and amplification, probes for detecting complementary DNA or RNA via molecular hybridization, tools for the targeted introduction of mutations and restriction sites, and for the synthesis of artificial genes.
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