Some autoimmune diseases show a positive correlation with dr…

Some autoimmune diseases show a positive correlation with dramatically decreased expression of histone deacetylase 9 (HDAC9, an enzyme that removes acetyl groups from histones). Why would the decreased expression of HDAC9 cause immune cells to produce inflammatory genes at inappropriate times?

Many antibiotics inhibit bacterial protein synthesis. For ex…

Many antibiotics inhibit bacterial protein synthesis. For example, tetracycline blocks the A site on the bacterial ribosome, and chloramphenicol blocks peptidyl transfer. What specific effect would you expect each of these antibiotics to have on protein synthesis?Many antibiotics inhibit bacterial protein synthesis. For example, tetracycline blocks the A site on the bacterial ribosome, and chloramphenicol blocks peptidyl transfer. What specific effect would you expect each of these antibiotics to have on protein synthesis?Tetracycline would directly affect:tRNA binding to the ribosomeribosome assemblygrowth of the protein chainChloramphenicol would directly affecttRNA binding to the ribosomeribosome assemblygrowth of the protein chainTetracycline would directly affect:tRNA binding to the ribosomeribosome assemblygrowth of the protein chainChloramphenicol would directly affecttRNA binding to the ribosomeribosome assemblygrowth of the protein chain