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Why the bacteria don't have post translational modifications?
They in fact do. Check out a review "Postranslational Protein Modification in Archaea" by Jerry Eichler. The problem is that took a long time to discover this so it was assumed that they don't have any PTMs but this is wrong.
Eukaryotes show which kinds of control mechanisms is it transcriptional transcript processing translational post translational or all of these?
Eukaryotes exhibit control mechanisms at all levels, including transcriptional, transcript processing, translational, and post-translational regulation. These mechanisms work together to finely regulate gene expression and protein production in response to various internal and external signals.
What are Three ways to control enzyme?
One way to control an enzyme is through post-translational modification such as phosphorylation or glycosylation. Other ways to control enzymes are through enzyme induction, inhibition, or by compartmentalizing the metabolic pathways.
What are the most common post translational modifications?
Post-translation or Post-translational regulation refers to the control of the levels of active protein either by means of reversible events (Post-translational modifications, such as Phosphorylation or sequestration) or by means of irreversible events (proteolysis).
Know the correct order of the steps of protein symtem?
The correct order of protein synthesis is transcription (DNA is copied into mRNA), translation (mRNA is decoded to build a protein), and post-translational modification (protein may undergo changes like folding or addition of functional groups).
What are three types of post-translational modification?
methylation lipidation glycosylation phosphorylation
Describe the last stage before escape of a viral infection?
assembly of the virus particles and post-translational modification of the viral proteins.
What is the end product of the step in translation?
A peptide or protein. Sometimes in their "inactive" form and requiring a "post-translational modification" in order to get their full biological activity.
What are the advantages and disadvantages of in situ hybridization?
The advantages of hybridisation include: precise anatomical localisation is able to be acheived High sensitivity Disadvantages: Non-specific labelling may occur cannot provide inormation on translational and post-translational modification peace
Which aspect of lac operon regulation is an example of post-translational control?
The addition of a lactose molecule to the Lac repressor protein is an example of post-translational control in lac operon regulation. This modification prevents the Lac repressor from binding to the operator region, allowing for the transcription of the genes involved in lactose metabolism.
Do the Golgi apparatus play an important role in the modification and transportation of proteins true or false?
True. The Golgi apparatus is an important organelle responsible for modifying, sorting, and packaging proteins into vesicles for transport to their final destination within the cell or outside of the cell. It is involved in post-translational modifications, such as glycosylation, that are crucial for the functionality of many proteins.
Why the bacteria don't have post translational modifications?
They in fact do. Check out a review "Postranslational Protein Modification in Archaea" by Jerry Eichler. The problem is that took a long time to discover this so it was assumed that they don't have any PTMs but this is wrong.
What is N glycosylation and where does it occur?
N-glycosylation is a post-translational modification process where carbohydrate moieties are attached to the nitrogen atom of asparagine residues in proteins. This modification typically occurs in the endoplasmic reticulum (ER) and continues in the Golgi apparatus, playing a crucial role in protein folding, stability, and cellular signaling. N-glycosylation is essential for the proper function of many glycoproteins, which are involved in various biological processes.
Why prokaryotic cells are not prefer for eukaryotic gene expression?
Actually, for some uses prokaryotic cells are just fine for eukaryotic gene expression. That said bacteria are deficient in quite a lot of the post-translational modification systems that eukaryotes use, such as glycosylation. Since those post-translational modifications can actually be important to the protein's function you might choose a eukaryotic expression system to preserve them.
Why post-translational modification of protein does not occur in prokaryotes?
Post-translational modifications of proteins do occur in prokaryotes, but they are generally less complex than in eukaryotes. Prokaryotes lack certain cellular compartments where modifications like glycosylation occur in eukaryotes. Additionally, prokaryotes have simpler metabolic pathways that may not require extensive post-translational modifications for protein function.
Differentiation is controlled at which level?
Post translational activation of the proteins
Eukaryotes show which kinds of control mechanisms is it transcriptional transcript processing translational post translational or all of these?
Eukaryotes exhibit control mechanisms at all levels, including transcriptional, transcript processing, translational, and post-translational regulation. These mechanisms work together to finely regulate gene expression and protein production in response to various internal and external signals.
