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Friday, 18 January 2013

Insulin

I . Introduction is a hormone secreted by the pancreas . , a type of protein , regulates the amount of glucose (a form of sugar ) in the job When a person has insufficient insulin the amount of sugar in the blood increases . The increase may result in diabetes mellitus , a metabolic disease . Too much insulin lowers the blood -sugar take . This may cause insulin shock , which is marked by convulsions and swooning and is sometimes fatal is prescribed in severe cases of diabetes mellitus . For healthful purposes , most insulin is obtained from the pancreas of cattle and hogs . The extract is mixed with zinc chloride and either of two proteins , globin or protamine . These proteins prolong into the bloodstream . recombinant human insulin is synthetic human insulin produced by a strain of bacteria created in a laboratory through a growth called agent splicing . was discovered in 1921-22 by Frederick G . Banting , Charles H Best , James B Collip , and hindquarters J .R . Macleod of the University of Toronto (Banting and Macleon shared the 1923 Nobel Prize in medicine for this domesticate . It was named insulin (from insula , Latin for island ) because it is produced by certain jail cells is the islets of Langerhans , small bodies in the pancreas . recombinant human insulin was first produced in 1978The intents of this are to (1 ) know the three features of the insulin grain that might create problems for its production in a recombinant protein expression system (2 ) figure prohibited the features which create problems and how would you solve these problems using an Eschericia coli or Saccharomyces cerevisae expression system and (3 find out why is microbial expression over vertebrate cell expressionII . DiscussionA . Three features of the insulin moleculeTo construct any protein , the cell requires a mean which contains all the information to build , modify and deliver it to the desired place This plan is called gene , which is embedded in a double stranded string along with assorted genes for other proteins .
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Alto featureher they form the genome of a cell which is in eukaryotes meet by a membrane to form the nucleus . as yet in a multicellular organism the genome in different cells is forever and a day exactly the sameThese genes are make of four groundworks coordinate in a double helix where the adenine nucleotide always pairs with the thymine nucleotide and the cytosine nucleotide always pair with the guanine nucleotide These sequences of nucleotides which encode a gene are copied into mRNA where the thymine nucleotides are replaced by uracil nucleotides capped , polyadenylated and spliced . This process is called transcription . Transcription is highly set because of its direct responsibility for the concentration of a certain protein . several(prenominal) types of cancer occur partly because one or more(prenominal) regulation mechanisms are knocked out . The reason for copying the desoxyribonucleic acid to mRNA is simply to protect the genome and when multiple copies are made a higher level of protein is achieved in a shorter pointedness of time . After the transcription the mRNA is transferred from the...If you want to get a full essay, order it on our website: Ordercustompaper.com

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