Reflecting on Protein synthesis

References :

http://www.credoreference.com/topic/protein_synthesis

http://commons.wikimedia.org/wiki/File:Protein_synthesis.svg

When proteins are being synthesised, there is a corresponding gene which is encoded in the DNA, this is now transcribed into RNA via transcription. When this is finished it is called mRNA which can be changed before it undergoes the translation process, which results in an amino acid sequence.

These processes take place on the ribosomes. Proteins can be synthesised using the 20 standard amino acids, but additional amino acids can also be en-cooperated. With the amino acid it can only be a part of protein synthesis if the enzyme tRNA synthetases attaches it to the specific transfer RNA. The tRNA is located at the translation site of DNA and RNA to amino acid sequence, this is directed by the genetic code. The structure is L- shaped and binds the amino acid at one end while the corresponding codon attaches to the other.

On the ribosomes there are three binding sites for the tRNAs.

1. The tRNA charged with amino acid goes into A (acceptor site)

2. The tRNA that is attached to the last amino acid in located at P ( peptidyl ) site.

3. The last site being E (exit ) site.

This now leads to a cycle where the polypeptide chain from the P – bound tRNA is transferred to the amino acid in site A. Which forms a new polypeptide bond this catalytic activity is the only one for the ribosomes. There is now an empty tRNA in the P site, which moves to the E site; and the other tRNA moves another chain into the P site. The cycle has now restarted.

Image

Advertisements

11 thoughts on “Reflecting on Protein synthesis

  1. Homöopathie says:

    Every weekend i used to pay a quick visit this site,
    for the reason that i want enjoyment, since
    this this website conations actually good funny information too.

  2. Wow, this paragraph is fastidious, my younger sister is analyzing these
    things, so I am going to tell her.

  3. Have you ever considered about adding a little bit more than
    just your articles? I mean, what you say is fundamental and all.

    But imagine if you added some great pictures or
    video clips to give your posts more, “pop”! Your content is excellent
    but with images and video clips, this site could definitely be one of the greatest in its field.
    Fantastic blog!

  4. Very shortly this site will be famous amid all blogging and site-building viewers, due to it’s fastidious content

  5. Remarkable! Its really amazing post, I have got much clear
    idea on the topic of from this piece of writing.

  6. I was curious if you ever considered changing the layout of your site?
    Its very well written; I love what youve got to
    say. But maybe you could a little more in the way of content so people
    could connect with it better. Youve got an awful lot of text for only having one or two pictures.
    Maybe you could space it out better?

  7. I tend not to comment, however I browsed a few of the remarks here Reflecting on Protein synthesis | justanotherbiochemian.
    I do have a few questions for you if it’s okay. Is it only me or does it seem like a few of these responses come across like they are left by brain dead people? 😛 And, if you are posting on additional sites, I would like to keep up with you. Would you post a list of every one of your social community pages like your linkedin profile, Facebook page or twitter feed?

    • Hello! I’m so happy that you found my blog to be this interesting, but it was just a school assignment so I don’t really do much blogging outside of school. But thank you for your comment, maybe I’d continue to blog In the future

  8. Hi, I do believe this is an excellent site. I stumbledupon it 😉 I am going to
    come back yet again since i have saved as a favorite it.
    Money and freedom is the best way to change, may you be
    rich and continue to help other people.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s