Nucleic Acids Convey polypeptide c' minal directi This ques similar to t' carboxy-ter- hesis ing synth to direct sis, the Secon yase aft e genetic groups of 44. Why is ATP important to protein function, and how is it used to accomplish this? which st is. The m fatthaei, synthetic able of r ataining r thus mus ucleotid h of mor Cwas the chemis re critir a 1966 ponded han our PROT mine the s tetail sizer
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- If transition happend at one of teh bases colored red, deterimne the consequent sequence of the protein product. If this is a part of a larger protein, how wold it affect the function of this protein product if it's an enzyme?Glycine is a highly conserved amino acidresidue in proteins (i.e., it is found in the same position in theprimary structure of related proteins). Suggest a reason why thismight occur.you have isolated a new protein called STICKY. you can predict from comparisons with other known proteins that STICKY contains bHLH domain. Predict the function of STICKY and rationale forthe importnce of these domains in sticky function.
- In the fungus Neurospora, some mutants were obtainedthat lacked activity for a certain enzyme. The mutationswere found, by mapping, to be in either of two unlinkedgenes. Provide a possible explanation in reference to quaternary protein structureThe Consequences of Ribosome Complexity Eukaryotic ribosomes are larger and more complex than prokaryotic ribosomal. What advantages and disadvantages might this greater ribosomal complexity bring to a eukaryotic cell?The glycosaminoglycan polysaccharide chainsthat are linked to specific core proteins to form the pro-teoglycan components of the extracellular space arehighly negatively charged. How do you suppose thesenegatively charged polysaccharide chains help to estab-lish a hydrated gel-like environment around the cell? Howwould the properties of these molecules differ if the poly-saccharide chains were uncharged?
- All 20 of the amino acids coded for by DNA are L configuration. With one exception, theyalso all have S absolute configuration. Which amino acid is the odd one out, having Rabsolute configuration?The earlier that two genes arose from a duplicated gene, themore their nucleotide sequences can have diverged, which mayresult in amino acid differences in the protein products. (a) Basedon that premise, identify which two genes are most divergentfrom each other. What is the percent amino acid identity betweentheir polypeptides? (b) Using the same approach, identify whichtwo globin genes are the most recently duplicated. What is thepercent identity between them?What would be the molecular sequence of the amino acid chain asp-leu-leu? (i.e. draw the whole sequence out as molecules joined together)
- The first amino acid in protein synthesis inthe chloroplast is N-formylmethionine. What is the significance ofthis fact?Adenine, cytosine, guanine, and thymineare the four nitrogenous bases found inDNA. For each molecule, identify all of thenonhydrogen atoms that are required to bein the same plane.. Because of the structural similarity between isoleucine andvaline, the aminoacyl-tRNA synthetases that link them totheir respective tRNAs possess proofreading sites. Examinethe structures of the other a-amino acids and determineother sets of amino acids whose structural similarities mightalso require proofreading