does protein synthesis use ATP?

Question

if it does, any ideas how, the more detailed the better!!!!!!!!

Answer 1

Energy for binding the amino acid to tRNA comes from ATP conversion to adenosine monophosphate.

Activation of amino acids requires energy in the form of ATP and occurs in a two step reaction catalyzed by the aminoacyl-tRNA synthetases. First the enzyme attaches the amino acid to the a-phosphate of ATP with the concomitant release of pyrophosphate. This is termed an aminoacyl-adenylate intermediate. In the second step the enzyme catalyzes transfer of the amino acid to either the 2'- or 3'-OH of the ribose portion of the 3'-terminal adenosine residue of the tRNA generating the activated aminoacyl-tRNA. Although these reaction are freely reversible, the forward reaction is favored by the coupled hydrolysis of PPi.

Answer 2

Atp Protein Synthesis

Answer 3

Generally no, protein synthesis in isolation is a passive process. But the whole business of moving products that are used in protein synthesis in and around the cell, through the cytoplasm and across cell and nuclear membranes likely uses ATP in many cases. Also, when protein synthesis takes place as a necessity of mitosis, the consumption of ATP within the cell will increase dramatically.

Edit: just looked at the answer above, sounds plausible, have to go and dig into my text books on that one. I like it when I get something wrong - opportunity to learn something! :)

Edit2: Okay, so ATP is consumed by Aminoacyl-tRNA when it binds tRNA to an amino acid. This is somewhat beyond the level I need to get my head round but from what I can gather this still isn't protein synthesis proper and forms part of the transport and preparation of substrates prior to protein synthesis. Protein synthesis itself - that is, the joining of one amino acid to the next does NOT consume ATP but does involve another energy yielding molecule called GTP (guanosine triphosphate). So I still stand by my original assertion that protein synthesis proper, does not consume ATP (although it does consume energy and is therefore not a passive process).

Answer 4

Yup. First ATP in the formation of the Ribosome- mRNA complex. The second in the the completion of the ribosome. he third in the attachment of t-rna and one more fopr each amino acid attached.
The basic is for n+1 where n is the no. of amino acids to be attached.

Answer 5

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First DNA is transcribed to mRNA which is then translated to protein. In the mRNA each triplet nucleoitide (codon) codes for a particular Amino acid. This can be read using the genetic code, a table which contain all the codons and the amino acid they code for. In translation, mRNA synthesized in the nucleus moves to the ribosomes. An anticodon containing the desired amino acid pairs with the corresponding codon in the mRNA in an orientation such that the amino acid is added to the polypeptide chain.

Answer 6

I went to the pub and asked for a pint of adenosine triphosphate. The barmain said that'll be ATP.

80p....well, the english chemists will be pi55ing themselves :)

Answer 7

it uses only atp

Answer 8

Yes.

Answer 9

OFF-COURSE

Answer 10

no