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protein synthesis pdf

endobj endobj PROTEIN SYNTHESIS R.J. Schneider INTRODUCTION The regulation of protein synthesis is an important part of the regulation of gene expression. %PDF-1.5 endobj 32 0 obj <> endobj

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The short answer is that the code of letters in DNA is a recipe to make proteins. How exactly do all those letters in DNA code for making a living thing?

x���Mk�@����9�JMf7�Ā~c��jh)���jlM��]fg�w��Ypch6�qw�j����—m�CDR) A ribosome Protein synthesis involves three distinct stages: transcription; translation; and protein folding 1.

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Ribosome Reads mRNA Directs tRNA Creates peptide bonds between AAs (makes polypeptide chain) What Do We Need For Protein Synthesis? )+Z���>�I�s���%��$���$�I��d ��C)��8#Y����I��1� !T�&���\�¶��܇e�A�VU�- +��(��d�@��_�5�z�-菻 g��Y�UR�"�+�; wH�,T>$ے,$��Q��H_A�6���*�ж^1�n��U�*`.|�)����Rh\�� �{��'�9��|q����ã9Q������8=LA�=�O��"��t�R��T[(����Y�3�p�Vp2�ך��#�_�Aʣ�v�!� Steps of Protein Synthesis 1. h��V]o�6�+|�0�7)��N����:�Py�%Z&JI.E���! In eukaryotic cells, DNA is housed in the nucleus. Chapter 11 Nucleic Acids and Protein Synthesis 25 Genes • Individual sections of DNA molecules make up the genes, which are the fundamental units of heredity that direct the synthesis of proteins. 4 0 obj 1 0 obj <> endobj Proteins form structures, enzymes, or other chemicals to create the building blocks of organisms and maintain homeostasis. AA order determines f(x) of protein ?s 8-12. 26

<> Protein Synthesis: Transcription & Translation Proteins have multiple roles within the cell: as enzymes, signals, structural components, defense, transport, and storage among other things.

endobj The types of protein produced within a cell depend on the information stored in the cell’s DNA (deoxyribonucleic acid). endstream

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Transcription Transcription is the making of messenger RNA using a DNA template.Enzymes unwind the double helix and separate the two strands by breaking the hydrogen bonds…

47 0 obj <>stream lO�Ev;a��O�S���d��{٪NuP���Q��]o��t٨��y�k�)�Q���@��~�G�j��{�xڑ��0�N+�j�>����Q(�߃���aH\&t*u���� %���� Protein Synthesis? %PDF-1.6 %���� 3. –Escherichia coli (E. coli) contains ~1000 genes. h�b```"ɮ� Ā B�@������r���y�$�>0�00��)�~fI.�$��E�x�J 0 Protein Synthesis . AS 8 PROTEIN SYNTHESIS QUESTIONSHEET 19 (a) when lactose is absent gene i becomes active; gene i codes for the synthesis of a repressor protein; the repressor protein binds to the operator site; this blocks the process of transcription of genes z, y and a (onto messenger RNA); since it blocks the action of RNA polymerase/will not allow RNA polymerase to move along DNA (from the promotor region 6 0 obj –Viruses contain a few to several hundred genes. Contents Introduction .....1 DNA Transcription .....1 The Primary Transcript .....4 Translation .....7 Protein Structure.....11 References .....11 Resources .....11 Introduction The genetic message carried on the DNA molecule is a code. 3 0 obj Amino Acids (AAs) Building blocks of proteins (20 AAs essential) Protein = AA chain = polypeptide chain ORDER MATTERS!

It is carried out by a ribosome.

<> endstream endobj 33 0 obj <> endobj 34 0 obj <>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/Thumb 17 0 R/Type/Page>> endobj 35 0 obj <>stream 2 0 obj n x�+T0421�3 �4F�&��{�&���+��+ � <>>> ���$ޙG�L&�O^)�-sc���R�b�l��Å�Gf��W;�8�c��`�ߕ���M���>�p�s This code is ultimately translated into a sequence of amino acids that, when complete, becomes a protein.

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2020-11-14 | Posted in 自治会からのお知らせComments Closed