How is the genetic information in DNA translated into protein?
- Thread starter Jhiizee
- Start date
that can easily be found in your textbook if you opened it up
please don't take my post as a commant to detour from the discussion thread. It was my way at smiling that we have a topic about the proteome.
It really stinks me off when someoone posts a suggestion to go read a book. Discussion Threads are meant to be a meeting place. You spread your propaganda and you read the lies, or perhaps you ask stupid questions. Maybe the thread starter doesn't want to read a book. That's OK.
I think I spend 1/2 my reading and posting time to moderating jerks.
back to the topic: DNA to Protein....A DNA strand unzips itself, and a matching RNA strand matches up to the exposed DNA strand.
To make a long story short, mRNA leaves and travels to a different cell. Some other zipping and unzipping occurs. Amino acids are linked together by peptide bonds, eventually forming a protein.
If someone else can paint a prettier picture...whip out your canvas and conte.
It really stinks me off when someoone posts a suggestion to go read a book. Discussion Threads are meant to be a meeting place. You spread your propaganda and you read the lies, or perhaps you ask stupid questions. Maybe the thread starter doesn't want to read a book. That's OK.
I think I spend 1/2 my reading and posting time to moderating jerks.
back to the topic: DNA to Protein....A DNA strand unzips itself, and a matching RNA strand matches up to the exposed DNA strand.
To make a long story short, mRNA leaves and travels to a different cell. Some other zipping and unzipping occurs. Amino acids are linked together by peptide bonds, eventually forming a protein.
If someone else can paint a prettier picture...whip out your canvas and conte.
I won't get into the mechanics of the enzymes involved and such, but what happens is this:
1) DNA is transcribed into mRNA in the nucleus. There are particular codons that the enzymes are looking for that begin the transcription.
2) The mRNA travels to, and attaches itself to a ribosome, which is either free floating in the cytosol or attached to the RER. There, the nucleotides are read from the start codon, in three letter sections, each of which code for a particular amino acid (some amino acids have multiple codons that code for them).
3) tRNA brings amino acids from the surrounding cytosol to the ribosome, and attach them in the order coded by the mRNA.
4) The amino acids are bonded together by peptide bonds, like proteome said. They are in a long linear chain, which is the primary conformation. The conformation to secondary structure is usually spontaneous, based on the interactions between the amino acids within the polypeptide. However, when going to the tertiary and quarternary conformations, there are usually larger proteins called chaperones that assist in the folding.
This is a rough outline. For more details, just ask. I don't know what grade level it's for, but I, or someone else here, can extrapolate for you if there isn't enough detail.
1) DNA is transcribed into mRNA in the nucleus. There are particular codons that the enzymes are looking for that begin the transcription.
2) The mRNA travels to, and attaches itself to a ribosome, which is either free floating in the cytosol or attached to the RER. There, the nucleotides are read from the start codon, in three letter sections, each of which code for a particular amino acid (some amino acids have multiple codons that code for them).
3) tRNA brings amino acids from the surrounding cytosol to the ribosome, and attach them in the order coded by the mRNA.
4) The amino acids are bonded together by peptide bonds, like proteome said. They are in a long linear chain, which is the primary conformation. The conformation to secondary structure is usually spontaneous, based on the interactions between the amino acids within the polypeptide. However, when going to the tertiary and quarternary conformations, there are usually larger proteins called chaperones that assist in the folding.
This is a rough outline. For more details, just ask. I don't know what grade level it's for, but I, or someone else here, can extrapolate for you if there isn't enough detail.
As a tutor I get really miffed when students want to be told all the answers without even bothing to try themselves first. I insist that they have all the material read before coming to an appointment. Hence my reply.
Try these sites for a good descrpition:
http://www.people.virginia.edu/~rjh9u/trtrpict.html
http://edtech.clas.pdx.edu/gene_expression_tutorial/transcription.html
http://www.agresearch.co.nz/scied/search/molecular/dnatranslation.htm
If I run into any more I might post them.
If this is not enough, try a search for "translation" or "transcription"
http://www.people.virginia.edu/~rjh9u/trtrpict.html
http://edtech.clas.pdx.edu/gene_expression_tutorial/transcription.html
http://www.agresearch.co.nz/scied/search/molecular/dnatranslation.htm
If I run into any more I might post them.
If this is not enough, try a search for "translation" or "transcription"
the answer on a different level:
by first specifying other temporal and spatial information
by first specifying other temporal and spatial information