What is Protein Synthesis?
Protein Synthesis or Translation is process in
which the sequence of nucleotides on the mRNA is
used to make different protein of different
functions.
How does it work?
When transcription ends mRNA is produced and
then the mRNA moves to the ribosome to start
the translation process.
Step 1
Translation begins at AUG (codes for methionine), the start
codon. Each tRNA has an anticodon whose bases are
complementary to the bases of a codon on the mRNA strand.
The ribosome positions the start codon and then a lot of
tRNA try matching their complementary anticodon until one
matches. The ribosome then continues matching tRNAs to
mRNAs.
Step 2
The ribosome joins two amino acids together forming a
peptide chain and breaks the bond between the previous
amino acid and its tRNA.
Then that tRNA leaves the ribosome allowing the next
tRNA to match its anticodon to the mRNAs codon.
Step 3
This process continues until the stop codon is found
(UAA, UAG, UGA) which code for no amino acid,
indicating that the polypeptide chain is done and the
mRNA is released from the ribosome.
And from there one the amino acid chain is formed
making a protein.
Done By:
Ismail Mousa
Osama Al-Amoudi
Ahmed Saber
Abdulaziz Omran
Jihad Omara