protein is 226 amino acids long‚ has a molecular mass of 25 kDa and shares DNA and amino acid sequence as the C-terminus of the M and L protein. The M protein has a 55-amino acid extension to the S protein at its N-terminus‚ giving it a molecular mass of 31 kDa‚ while the L protein a further 108-119-amino acid extention to the M protein at its N-terminus and a molecular mass of 43 kDa. Virions and subviral particles contain all three proteins
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You are an amino acid in the lumen of the small intestine of a newborn mammal. You are looking at intestinal epithelial cells that bring important maternal proteins (immunoglobulins) across their apical surfaces by receptor-mediated endocytosis. Your ambition is to be part of a receptor that does that job. A. beginning from the challenge of entering the cell‚ until you have been loaded onto an appropriate tRNA. Amino acids are the building blocks of protein. Within the small intestine
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Once this has occurs‚ tRNA matches the amino acid Methionine to the codon using an anticodon- (UAC). tRNA then carries the next matching amino acid to the "A" site where a peptide bond forms between the two amino acids allowing a chain to form. The ribosome sifts one codon in the 3’ position so the next tRNA can match the codon to its amino acids for the building of another protien. Translation ends when the ribosome reaches a stop codon and an amino acid sequence‚ or a protein‚ is made. To find
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secondary structures 1. Draw the structure of a generalised amino acid 2. Using appropriate diagrams‚ show how two amino acids become chemically bonded to one another. Name the bond that is formed The bond that forms between the two amino acids is a peptide bond. This was made on MS paint 3. Using suitable diagrams where necessary‚ describe the primary structure of a protein The primary structure of a protein is a sequence of amino acids with locations of covalent bonds that affects the secondary
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that must be precisely regulated & integrated 3. Certain fundamental reactions pathways are found in all organisms 4. All orgs use same types of molecules: carbs‚ lipids‚ proteins‚ and nucleic acids 5. Instructions for growth‚ development‚ and reproduction are encoded in each organisms nucleic acids Have to know how cells are regulated and where this info is coming from Why/how energy is made or used up – always tracking that II. Cells a. Prokaryotic cells Small & structurally simple Bounded
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on Earth. Procedure: The charts below lists a portion of the amino acids found in the Cytochrome C protein of several different organisms. Use the chart to compare the amino acid sequence in humans to the sequences of the other organisms listed. For each organism‚ identify any amino acid that is different or missing when compared to the amino acids in the human sequence. 1. Click on the following link to open the activity chart: Amino Acid Sequences in Cytochome-C Proteins. 2. Compare the human/chimpanzee
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b What general name is given to solutions that have many more hydrogen ions than hydroxide ions? Solutions that have many more hydrogen ions than hydroxide ions are termed acidic. 4 Name the monomers of carbohydrates‚ proteins‚ lipids and nucleic acids. The monomers (basic building blocks) of
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Milk is the probably the most nutritionally complete food found in nature. Whole milk contains vitamins (principally thiamine‚ riboflavin‚ panthothenic acid and vitamins A‚ B12 and D)‚ minerals (calcium‚ sodium‚ phosphorus‚ potassium‚ and trace minerals)‚ proteins (which include all the essential amino acids)‚ carbohydrates (mostly lactose)‚ and lipids (fats). Whole milk is an oil in water emulsion‚ containing approximately 4% fat dispersed as very small (micron sized) globules. The fat emulsion
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Proteins are made up of long chains of amino acids‚ just a chain of ami. tacids makes up the primary structure. The secondary structure is formed by hydrogen bonds joining the chains in certain places to make an alpha helix or a beta sheet. The tertiary structure is formed by even more folding and joining of the chains to make a globular mass or fibrous mass. An example of this would be a carrier protein. Proteins are needed for many things they are needed in our diet for growth and repair of cells
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chains of amino acids that perform the most important functions in living organism. Every protein will contain an amino group‚ carboxyl group‚ a different R group and an alpha carbon with two hydrogens. There are nine types of functions proteins can have‚ enzymes‚ motor‚ receptor‚ structural‚ storage‚ transport‚ signaling‚ and special purpose proteins(antibodies). There are four levels of protein structure‚ primary‚ secondary‚ tertiary and quaternary. Level one( Primary) deals with amino acid sequencing
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