Translation of proteins

Genetics as it applies to evolution, molecular biology, and medical aspects.

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Translation of proteins

Post by ccBiologist » Thu Nov 03, 2011 7:09 am

Im having a hard time getting the translation of proteins down so here is what i understand so far ( please tell me if i have the right idea or if i forgot to mention something )

OK so before the translation of proteins the you first need to have the transcription phase. This is occurs when an enzyme(helixase) splits a strand of DNA . The mRNA then positions itself close to the gene that will be replicated and starts to replicate the information on this gene. This is done by the assembling of complementary bases on the mRNA to match the sequence on the gene. Once the information is replicated the mRNA leaves the gene and exist via the nuclear pore and binds to the smaller sub unit of a ribosome. The ribosome then reads the information on the mRNA sequentially and then starts to use tRNA to transport the amino acids. The codon of the tRNA that matches the codon on the mRNA binds to the mRNA and releases an amino acid . one tRNA holds this protein molecule and while another tRNA with another amino acid is brought to the ribosome and the complementary codons of the mRNA and the tRNA bind and release another amino acid which will be joined to the previous one that was released. the process repeats itself until a polypeptide chain is formed.

N.B I apologize if this post was too long

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Post by JackBean » Thu Nov 03, 2011 7:25 am

the RNA polymerase then positions itself...

Cis or trans? That's what matters.

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