Proteins what they are and how theyre made proteins are expressed from genes all organisms make proteins in essentially the same way the process starts with a the genetic code is essentially the same throughout nature remarkably across all life each codon has the same which proteins . The information to produce a protein is encoded in the cells dna when a protein is produced a copy of the dna is made called mrna and this copy is transported to a ribosome ribosomes read the information in the mrna and use that information to assemble amino acids into a protein if the protein is going to be used within the cytoplasm of the cell the ribosome creating the protein will be free floating in the cytoplasm if the protein is going to be targeted to the lysosome become a . Sometimes a protein needs some help to fold into its required tertiary structure modifications can be made after translation by enzymes such as methylation phosphorylation and glycosylation these modifications tend to occur in the endoplasmic reticulum with a few occurring in the golgi body. Proteins are large biomolecules made of a long chain of amino acids they play a crucial part in normal biological functions and structures the amino acid sequence of the protein and in some
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