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| | Protein Synthesis |
 | | This pathway was elucidated by a pulse-chase experiment. | | | This is the "pulse" phase of the experiment. | | | Certain (perscription) drugs change the rate of error and make a faulty protein (purposely). |
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http://www.dartmouth.edu/~cbbc/courses/bio4/bio4-lectures/ProteinSynthesis.html
(1589 words)
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| | Endoplasmic Reticulum |
| | Distinguish the types of secretory pathways through the Golgi Complex. | | | The first part of this presentation will focus on rough endoplasmic reticulum which gets its name from the presence of ribosomes on its surface. | | | Give one example and state where it works in the process. |
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http://cellbio.utmb.edu/cellbio/rer1.htm
(837 words)
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| | Protein 2 |
| | Proteins in our body are continually being broken down and re-synthesized (turnover). | | | Results from chronic underfeeding, both inadequate energy as well as protein. | | | Amino acids are conserved for essential functions (heart, lungs, brain) and other tissues atrophy, including the G.I. tract. |
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http://animalscience.tamu.edu/nutr/202s/LectureOutlines/protein2.html
(383 words)
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| | Protein Synthesis |
| | One of the great triumphs in biochemistry in recent years has been the determination of the structure of the ribosome and its components so that its function can be examined in atomic detail (Figure 29.1). | | | Translation is a conceptually more complex process than either replication or transcription, both of which take place within the framework of a common base-pairing language. | | | Genetic information is most important because of the proteins that it encodes, in that proteins play most of the functional roles in cells. |
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http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=stryer.chapter.4122
(351 words)
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| | Protein synthesis and engineering. Protein biosynthesis |
| | The chemistry is complicated and researchers are still uncovering new details _ we will only give an outline. | | | Proteins dictate the nature and speed of chemical reactions in an organism and so control what the organism is and does. | | | Everything about an organism depends on the proteins it makes; these differ from species to species and from individual to individual. |
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http://www.schoolscience.co.uk/content/5/chemistry/proteins/Protch4pg2.html
(994 words)
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| | Protein Synthesis Activities |
| | The exercise is considerably more abstract and will ultimately let you know who understands the mechanisms of this process. | | | Teachers may adapt this pedagogical strategy to any analogy that works for the abstract idea that is introduced. | | | There are many analogies that teachers have developed to represent the process of protein synthesis. |
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http://www.woodrow.org/teachers/bi/1994/protein_synthesis.html
(1228 words)
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| | Protein synthesis and engineering. Peptide synthesis |
| | But first we will look at the more conventional, though elegant, approach of the synthetic organic chemist. | | | In this chapter you will see the complex chemical systems that organisms use and how scientists use the techniques of protein engineering | | | The 1984 Nobel Prize for Chemistry was awarded to Professor Merrifield of Rockefeller University for developing an automated version of this technique capable of producing the |
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http://www.schoolscience.co.uk/content/5/chemistry/proteins/Protch4pg1.html
(349 words)
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| | Introductory Biology Courseware (110)- Protein Synthesis |
| | Hence, the structure and function of all of an organism's molecules (and therefore, all of the organism's characteristics) are defined by the structure of the DNA possessed by the organism. | | | Proteins are significant in that they are structural and functional components of cells and organisms. | | | The primary structure, in turn, influences other aspects of the protein's structure. |
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http://tidepool.st.usm.edu/crswr/110proteinsynthesis.html
(595 words)
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| | Protein biosynthesis - Wikipedia, the free encyclopedia |
| | This is may include the formation of disulfide bridges or attachment of any of a number of biochemical functional groups, such as acetate, phosphate, various lipids and carbohydrates. | | | In eukaryotes (higher organisms) the vital progess of splicing (genetics) occurs at this stage. | | | The term is sometimes used to refer only to protein translation but more often it refers to a multi-step process, beginning with transcription and ending with translation. |
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http://en.wikipedia.org/wiki/Protein_biosynthesis
(643 words)
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| | Protein Synthesis |
| | All three of these processes require specific proteins, some of which are ribosome associated and some of which are separate from the ribosome, but may be temporarily associated with it. | | | Although the exact effect of eIF-4E phosphorylation is not clearly defined, it may be necessary to increase affinity of eIF-4E for the mRNA cap structure and for eIF-4G. | | | There are several signal transduction pathways whose activations lead to phosphorylation of 4E-BPs. |
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http://web.indstate.edu/thcme/mwking/protein-synthesis.html
(4520 words)
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| | Protein Synthesis |
| | George Beadle, during the 1940s, proposed that mutant eye colors in Drosophila was caused by a change in one protein in a biosynthetic pathway. | | | is the blueprint for construction of a protein. | | | The Beadle and Tatum experiment that suggested the one gene one enzyme hypothesis. |
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http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookPROTSYn.html
(2154 words)
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| | Protein synthesis lecture |
| | For example, the chemical structure of puromycin is similar to an aminoacyl-tRNA. | | | Therefore protein synthesis consumes more energy than any other biosynthetic process. | | | Why do mitochondria (and chloroplasts) have their own genetic systems whereas other cytoplasmic organelles do not? |
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http://www.med.uottawa.ca/patho/devel
(2239 words)
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| | [Regents Prep Living Environment] Heredity & Genetics: Protein Synthesis |
| | Regulation occurs both through changes in the activity of proteins and through the selective expression of individual genes, as humans and other organisms have genes which direct the expression of other genes. | | | As the DNA of different organisms and most individuals (except for identical twins) is different, this means the proteins produced by different humans and other organisms exhibit differences. | | | This is sometimes referred to as being the central dogma or idea of biology. |
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http://regentsprep.org/Regents/biology/units/heredity/synthesis.cfm
(560 words)
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| | HHMI News: Visualizing Protein Synthesis in Living Neurons |
| | “The soma is a potentially greater source of proteins than the dendritic spines, so we had to show convincingly that there was no way that the signal we were observing in the dendrites was coming from the soma.” The researchers isolated the dendrites by snipping them from the neurons. | | | Schuman and her colleagues are now applying their protein synthesis reporter system to more complex brain slices and whole mice. | | | Going a step further, the researchers showed that they could cause the fluorescence to disappear by treating the neurons with a drug that blocked protein synthesis. |
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http://www.hhmi.org/news/schuman.html
(887 words)
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| | Protein Synthesis |
| | Part of this genetic information is devoted to the synthesis of proteins, which are essential to our body and used in a variety of ways. | | | This genetic information is found in the nucleus, though protein synthesis actually occurs in ribosomes found in the cytoplasm and on rough endoplasmic reticulum. | | | As mentioned, a string of nucleotides represent the genetic information that makes us unique and the blueprint of who and what we are, and how we operate. |
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http://www.biology-online.org/1/6_protein_synthesis.htm
(417 words)
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| | Protein Synthesis Diagram: simplified picture of a cell with mRNA, tRNA and ribosomes working to produce protein, by ... |
| | There is considerable interest in proteomics since it follows naturally from genomics (the chracterisation of the genome) and is the domain where much drug development may occur. | | | Proteomics essentially means the identification and understanding of proteins (in a cell or organism) and is comparable to the term genomics which applies to the genes (DNA). | | | This diagram is very simplified but gives the essence of the process of protein manufacture in the cell and should be very useful for illustrating articles on proteomics or as an introduction to protein synthesis. |
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http://www.rkm.com.au/CELL/protein-synthesis.html
(464 words)
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| | streptomycin - the World's Largest Catalog |
| | A reportof "Resistant" indicates that achievable drug concentrations are unlikelyto be inhibitory and other therapy should be selected streptomycin protein synthesis. | | | A report of "Intermediate"indicates that the result be considered equivocal, and, if the organism is notfully susceptible to alternative clinically feasible drugs, the test shouldbe repeated streptomycin protein synthesis. | | | One such standard procedure 1 which has been recommended for use with disksto test susceptibility of organisms to streptomycin uses the 10 mcg streptomycindisk streptomycin protein synthesis. |
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http://s.drugs-store.org/streptomycin/streptomycin-protein-synthesis.html
(962 words)
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| | Essay or Coursework - Nucleic acid, DNA replication and Protein Synthesis |
| | This protein then will play a structural or functional role in the body. | | | Protein synthesis involves the transfer of the coded information from the nucleus to the cytoplasm (transcription) and the conversion of that information into polypeptides on the ribosome's (translation). | | | In this process, each set of 3 mRNA bases will pair with a complimentary tRNA base triplet (called an anticodon). |
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http://www.coursework.info/i/19174.html
(585 words)
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| | Protein Synthesis |
| | Others suggest they may have some as yet undiscovered function. | | | The digestive process breaks the protein chains down into individual amino acid molecules which are then absorbed by the blood and transported to the individual body cells. | | | This information is not critical for understanding the use of DNA for genealogy but does form a foundation for understanding the way genetic mutations are expressed and a basis for understanding genetic differences. |
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http://www.contexo.info/DNA_Basics/Protein_synthesis.htm
(1027 words)
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| | Protein Synthesis |
| | Muscle and immune proteins Overview of sarcopenia and potentialities of physical exercise as an prevention method of immunosenescence, correlation between the muscle mass and... | | | Congestive Heart Failure Medications A brief explanation of congestive heart failure with a very extensive listing of medications use to assist the patient. | | | White: Structural Studies of the Prokaryotic Ribosome Research on the complex between RNA and ribosomal protein, S4-RNA interaction surface and thiostrepton binding site, at St Judes Children's Hospital, Memphis,... |
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http://www.body-building-now.com/go/proteinsynthesis
(1019 words)
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| | DNA, RNA and Protein Synthesis |
| | The process of protein synthesis has been summarized on pages 4-384 of Molecular Biotechnology, and can also be found on the web at http://accessexcellence.org/AB/GG/protein_synthesis.html translation (in conjunction with transcription) and http://accessexcellence.org/AB/GG/dna_molecule.html. | | | In eukaryotes (organisms with cells containing a nucleus; in fact, any higher organism) generally the transcripts needs to be processed before they can serve as a blueprint for a protein. | | | After processing, the information in the mRNA can be used to be "translated" into a protein of specific sequence. |
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http://photoscience.la.asu.edu/photosyn/courses/BIO_343/lecture/DNA-RNA.html
(1735 words)
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| | MSN Encarta - Deoxyribonucleic Acid |
| | Their model proved to be so important for the understanding of protein synthesis, DNA replication, and mutation that they were awarded the 1962 Nobel Prize for physiology or medicine for their work. | | | As a result of the substitution, the sequence of amino acids in the resulting protein may also be changed. | | | Introduction; Structure; Protein Synthesis; Replication; Tools and Procedures; Applications; Social Issues |
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http://encarta.msn.com/encyclopedia_761561874/Deoxyribonucleic_Acid.html
(936 words)
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| | Hepatitis C: The Facts: Viruses: Protein Synthesis |
| | In a similar manner, depending on the precise details of their structure, protein molecules can serve as either structural scaffolding or as enzymes (catalysts.) The information contained in our blueprints folds back on itself in very interesting ways in that the cell is actively using its processes to make more process capacity available. | | | Each protein molecule has a precise molecular shape and a precise molecular surface, each protein being the molecular expression of a small portion of the information contained in our genetic material. | | | Protein synthesis takes place on a complex structure, the ribosome, composed of many protein molecules and a specialized set of three different RNA molecules. |
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http://www.epidemic.org/theFacts/viruses/proteinSynthesis.html
(732 words)
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| | Science NetLinks: Protein Synthesis: at the ribosome |
| | The determination of the mechanism of protein synthesis has increased understanding of many genetic processes and permitted such developments as bioengineering. | | | The similarity of human DNA sequences and the resulting similarity in cell chemistry and anatomy identify human beings as a single species.... | | | This animation will be useful to students to help them visualize the molecular basis of genetics. |
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http://www.sciencenetlinks.com/tools.cfm?DocID=53&Grade=9-12
(224 words)
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| | The Ribosome |
| | This can be done in the cytoplasm on clusters of ribosomes, called "polyribosomes". | | | Clusters of ribosomes may sit on a mRNA and make proteins, each making a strand of polypeptides. | | | Learn more about how proteins are handled in the rough endoplasmic reticulum |
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http://cellbio.utmb.edu/cellbio/ribosome.htm
(1144 words)
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| | Science of Folding@Home |
| | These clumps can often gather in the brain, where they are believed to cause the symptoms of Mad Cow or Alzheimer's disease. | | | Diseases such as Alzheimer's disease, cystic fibrosis, BSE (Mad Cow disease), an inherited form of emphysema, and even many cancers are believed to result from protein misfolding. | | | We are now working to further develop our method, and to apply it to more complex and interesting proteins and protein folding and misfolding questions. |
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http://folding.stanford.edu/science.html
(810 words)
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| | Protein Synthesis: Translation |
| | During this elongation process, the protein has assumed its three-dimensional functional shape. | | | This hydrophobicity of amino acids is often critical to a proteins final tertiary structure. | | | They may also prevent the transfer of the peptidyl tRNA from the A-site to the P-site (see Fig. |
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http://www.cat.cc.md.us/courses/bio141/lecguide/unit4/genetics/protsyn/translation/translation.html
(1251 words)
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| | Protein Synthesis |
| | Mendel described that certain “factors” were responsible for the patterns of inheritance that he observed. | | | It would not make sense, from an energy point of view, if transcription and translation were occurring all the time. | | | Genes also direct the production of proteins that function as antibodies or hormones, or proteins that form structural molecules like in muscles, ligaments, hair, nails, etc. The presence or absence of certain proteins may manifest into genetic disorders as well. |
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http://www.clickandlearn.org/Bio/Protein_Synth.htm
(4411 words)
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| | Protein Synthesis: Transcription |
| | In other words, it is an RNA molecule complementary to a mRNA and as such may complementary base pair with the mRNA and prevente it from being translated into protein. | | | Once the actual transcription begins, ribonucleotides containing 3 phosphate groups form hydrogen bonds through the process of complementary base (def) pairing with the exposed deoxyribonucleotides on the unwound strand that is to be transcribed. | | | Over recent years however, it has been discovered that much of this intergenic DNA, although it does not code for protein synthesis, is transcribed into functional molecules of RNA with names such as antisense RNA microRNA, and riboswitch RNA that play important roles in whether or not a protein is actually made. |
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http://www.cat.cc.md.us/courses/bio141/lecguide/unit4/genetics/protsyn/transcription/transcription.html
(1788 words)
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| | Protein Synthesis |
| | Transcription generates not only the mRNAs that carry the information for protein synthesis but transfer, ribosomal and other RNA molecules that have structural and catalytic functions. | | | Could the tRNAs be replaced by other mechanisms? | | | Discussion question: Why should rRNA molecules exist at all, and how did they come to play an important role in the structure and function of the ribosome? |
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http://www.cryst.bbk.ac.uk/PPS2/course/section4/protsynth.html
(513 words)
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| | Protein Synthesis |
| | mRNA secondary structure, and may also cause release of bound proteins, thus facilitating the scanning process. | | | Drag and zoom in to view codon/anticodon base-pairing between mRNA and tRNAs in the A and P sites. | | | from the laboratory of V. Ramakrishnan of the MRC Laboratory of Molecular Biology, based on crystal structures of the ribosome and various protein factors. |
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http://www.rpi.edu/dept/bcbp/molbiochem/MBWeb/mb2/part1/translate.htm
(1677 words)
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| | A Science Odyssey: DNA Workshop: Protein Synthesis |
| | Although the outcome of protein synthesis can be involved and quite complex, its purpose is rather straightforward. | | | This keratin, combined with the keratin left by many other cells, emerge from your scalp as hair. | | | By controlling protein synthesis within each cell, the genes that make up DNA control the life of the entire organism. |
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http://www.pbs.org/wgbh/aso/tryit/dna/protein.html
(192 words)
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| | Lab Manual Exercise #3 |
| | RNAi may be described as a type of gene therapy that takes advantage of an intermediate step between DNA and protein in the cytoplasm of cells. | | | Just as certain strains of HIV can alter their protein shell so they are unrecognizable to your immune system, some computer viruses are able to disguise their code from your antivirus software. | | | They have no membrane-bound organelles, no ribosomes (organelle site of protein synthesis), no cytoplasm (living contents of a cell), and no source of energy production of their own. |
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http://waynesword.palomar.edu/lmexer3.htm
(4135 words)
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| | Protein synthesis:transcription |
| | Transcription relies on the principle of complementarity to make the RNA transcript. | | | Protein synthesis involves two big steps and several other smaller steps depending on the organism. | | | Protein synthesis is important because it is through the use of genetic information to synthesize proteins that the genes in the DNA are expressed in the phenotype. |
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http://staff.jccc.net/pdecell/proteinsynthesis/transcript.html
(413 words)
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| | Protein Synthesis |
| | Chain initiation phase ends when the large ribosomal subunit combines with the small subunit. | | | Elongation comes to an end when one (or more) of three stop codons (UAA, UAG, UGA) is encountered | | | Once RNA for a particular region has been made, the double helix quickly reforms, thereby displacing the growing single strand of RNA. |
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http://home.earthlink.net/~dayvdanls/ProSynLec2.htm
(767 words)
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| | The Nobel Prize in Physiology or Medicine 1999 |
| | These pages are based on material from the 1999 Physiology or Medicine Nobel Poster. | | | The Nobel Prize in Physiology or Medicine 1999 | | | SRP dissociates from the receptor and the nascent polypeptide chain is translocated through the channel into the ER lumen. |
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http://nobelprize.org/medicine/laureates/1999/illpres/protein.html
(174 words)
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| | Protein synthesis - Wikipedia, the free encyclopedia |
| | This is a disambiguation page: a list of articles associated with the same title. | | | Biological and artificial methods for creation of proteins differ significantly. |
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http://en.wikipedia.org/wiki/Protein_synthesis
(83 words)
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| | Protein Synthesis: The Ingredients |
| | Addition of the formyl group to the N-terminal methionine effectively provides it with a peptide bond. | | | Each factor has a specific role to play which will be described in Protein Synthesis: The Nine Steps. | | | The aminoacyl group in these cases is subsequently transferred by a transesterification reaction from the 2' hydroxyl to the 3' hydroxyl of the 3' terminal nucleotide. |
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http://www.mun.ca/biochem/courses/3107/Lectures/Topics/Ingredients.html
(2247 words)
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| | Protein Synthesis - why you have dna in the first place |
| | Each of those two parts is called a 'subunit' and is made up of many proteins and RNA. | | | Do you see how the ribosome are split into a small part and a large part. | | | This is the beginning of my ribosome buddys making protein. |
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http://www.eurekascience.com/ICanDoThat/protein_syn.htm
(691 words)
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| | Protein Synthesis (Animation) |
| | During the second phase of protein translation, elongation, events occur which cause the protein/polypeptide to grow in length as additional amino acids are sequentially attached to one another. | | | Initiation is the first phase of protein translation. | | | During a preparatory step, acylation, tRNA molecules are linked to their respective amino acids, forming complexes called aminoacyl-tRNAs. |
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http://tidepool.st.usm.edu/crswr/protsynthmov.html
(238 words)
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| | PROTEIN SYNTHESIS |
| | Also, the two halves of the ribosome disassociate and again become free in the cytoplasm. | | | Protein synthesis (description works for both eukaryotes and prokaryotes.): Transcription: | | | There is no fully known function or cause for introns: Introns can be artificially removed from certain genes of DNA and replaced into cells. |
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http://www.mrs.umn.edu/~goochv/CellBio/lectures/synthesis/synthesis.html
(970 words)
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| | Protein Synthesis |
| | Prior to the beginning of the protein synthesis, all of the component parts are assembled in the ribosome which is the brown/tan structure in the left graphic. | | | At some other prior time, the various other types of RNA have been synthesized using the appropriate DNA. | | | The N-formyl-methionine that was used to initiate the protein synthesis is also hydrolyzed from the completed peptide at this time. |
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http://www.elmhurst.edu/~chm/vchembook/584proteinsyn.html
(415 words)
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| | Wiley::Protein Synthesis and Ribosome Structure: Translating the Genome |
| | Based on more than 30 years of ribosome research and incorporating the most recent structural evidence, this book presents a uniform picture of the largest enzyme complex found in living cells, shedding light on many decades-old questions in molecular biology. | | | A premier resource for anyone with an interest in ribosomal protein synthesis, whether in the context of molecular biology, biotechnology, pharmacology or molecular medicine. | | | Protein Synthesis and Ribosome Structure: Translating the Genome |
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http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527306382.html
(259 words)
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| | A Science Odyssey: You Try It: DNA Workshop |
| | In 1953, an accurate model of the DNA molecule was presented, thanks to the work of Rosalind Franklin, James Watson, and Francis Crick. | | | The activity in this section places you within the cell, involving you with the processes of DNA replication and protein synthesis. | | | The cells of your hair follicles somehow generate all of the protein that make up this hair. |
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http://www.pbs.org/wgbh/aso/tryit/dna
(191 words)
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| | Protein Synthesis |
| | Beadle and Tatum, who won a Nobel prize for their work, demonstrated the role of enzymes in biochemical reactions and that genes code for specific enzymes | | | DNA is in cell nucleus yet protein synthesis takes place in cytoplasm | | | Transfer RNA (tRNA) transfers a particular amino acid to a ribosome |
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http://arnica.csustan.edu/boty1050/Proteinsyn/proteinsyn.htm
(912 words)
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| | Protein Synthesis |
| | In RNA uracil is found instead of thymine. | | | A length of DNA which codes for the whole of one protein is called a gene. | | | There are also three codes for stopping the formation of an amino acid chain. |
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http://www.revision-notes.co.uk/revision/849.html
(163 words)
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| | Biology I Interactive Animations |
| | Movie of Protein Synthesis Gary Anderson - BSG Courseware | | | Protein Synthesis (advanced) by Nancy Hughes at Carnegie Mellon |
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http://science.nhmccd.edu/biol/bio1int.htm
(568 words)
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