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Fatty Acid Synthesis Chapter 28, Stryer Short Course
Fatty Acid Synthesis Chapter 28, Stryer Short Course

... • Opposite of beta oxidation in the sense that 2carbon acetate units are linked to form evenchain, saturated fatty acids • Differs from Fatty acid degradation – In cytoplasm, not matrix – Acyl carrier protein rather than CoA – Enzymes linked in a complex – Utilizes NADPH – Energetically linked to AT ...
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... CO2 removed to give amine H removed and replaced to give D form N removed to give alpha keto acid Glutamine as N carrier glutamine synthetase and glutaminase Aspartate as N carrier The urea cycle, also called the ornithine cycle two compartments ...
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1 - u.arizona.edu

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... 1. Synthesis of PE and PC from preexisting choline and ethanolamine These synthetic pathways involve the phosphorylation of choline or ethanolamine by ‫ انزيم‬kinases, followed by conversion to the activated form, CDP-choline or CDP-ethanolamine ‫ارجع الى‬ ‫الطريقه الثانيه لتصنيع الفسفولبدز لكي تتو ...
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... Analogues and Synthesis: A rich array of puromycin analogues with modified amino acid, carbohydrate, and/or base moieties has been prepared and evaluated biologically to study the structure-activity correlations….. ...
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Protein Synthesis - Workforce Solutions
Protein Synthesis - Workforce Solutions

... amino acid differ only in the third base; therefore fewer different tRNAs are needed because a given tRNA can base-pair with several codons – the existence of wobble minimizes the damage that can be caused by a misreading of the code; for example, if the Leu codon CUU were misread as CUC or CUA or C ...
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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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