Translation elongation | translation in prokaryotes lecture 4
200.9 هزار بار بازدید -
9 سال پیش
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Prokaryotic translation lecture 4 –
Prokaryotic translation lecture 4 – This lecture explains about the protein translation elongation in prokaryotes. With the formation of the complex containing fMet-tRNA within the peptidyl website online, an aminoacyl tRNA with the complementary anticodon sequence can bind to the mRNA passing through the acceptor web page. This binding is aided by using elongation factors which can be based upon the vigor from the hydrolysis of GTP. Elongation explanations go by way of a cycle to regenerate GTP after its hydrolysis.
Now, with tRNA bearing a sequence of amino acids in the p website online and tRNA containing a single amino acid in the A web site, the addition of a link to the chain can be made. This addition occurs by means of the formation of a peptide bond, the nitrogen-carbon bond that types between amino acid subunits to form a polypeptide chain. This bond is catalyzed via the enzyme peptidyl transferase.
The peptide bond occurs between the carboxyl workforce on the lowest link in the peptide chain located on the p website and the amine crew on the amino acid within the gaggle. Accordingly, the peptide chain shifts over to the A site, with the common amino acid on the A website because the lowest link in the chain. The tRNA in the A website turns into peptidyl RNA, and shifts over to the P site. In the meantime, the ribosome engages in a method called translocation: spurred via elongation explanations, the ribosome strikes three nucleotides within the three' high path alongside the mRNA. In other words, the ribosome strikes so that a brand new mRNA codon is out there in the A site.
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Now, with tRNA bearing a sequence of amino acids in the p website online and tRNA containing a single amino acid in the A web site, the addition of a link to the chain can be made. This addition occurs by means of the formation of a peptide bond, the nitrogen-carbon bond that types between amino acid subunits to form a polypeptide chain. This bond is catalyzed via the enzyme peptidyl transferase.
The peptide bond occurs between the carboxyl workforce on the lowest link in the peptide chain located on the p website and the amine crew on the amino acid within the gaggle. Accordingly, the peptide chain shifts over to the A site, with the common amino acid on the A website because the lowest link in the chain. The tRNA in the A website turns into peptidyl RNA, and shifts over to the P site. In the meantime, the ribosome engages in a method called translocation: spurred via elongation explanations, the ribosome strikes three nucleotides within the three' high path alongside the mRNA. In other words, the ribosome strikes so that a brand new mRNA codon is out there in the A site.
For more information, log on to-
http://www.shomusbiology.com/
Get Shomu's Biology DVD set here-
http://www.shomusbiology.com/dvd-store/
Download the study materials here-
http://shomusbiology.com/bio-material...
Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology-
Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store
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We are social. Find us on different sites here-
Our Website – www.shomusbiology.com
Facebook page- Facebook: ShomusBiology
Twitter - Twitter: shomusbiology
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Youtube- thefunsuman
Thank you for watching
9 سال پیش
در تاریخ 1394/02/14 منتشر شده
است.
200,959
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