help fill in the word between brackets    Serine proteases are an example of [nucleophilic/electrophilic/covalent/acid- base] catalysts because the catalytic triad [aspartate/serine/histidine] protonates the leaving group and abstracts a proton from water. Serine proteases are an example of [nucleophilic/electrophilic/covalent/acid-base] catalysts because the catalytic [aspartate/serine/histidine] is converted to an oxyanion to attack the peptide bond. Serine proteases are an example of [nucleophilic/electrophilic/covalent/acid-base] catalysts because an acyl-enzyme intermediate is formed during the catalytic cycle between part of the substrate and the catalytic [aspartate/serine/histidine].

Can you please help solve this problem?

What kind of catalysis is cysteine driving in this picture? S Los i fy R……—NHR N-H---S O. N-H H-N H-N. O Metal catalysis Covalent catalysis Base catalysis O Acid catalysis NHR²

what does the Hexa protein domain depict? (in relation with tay sachs disease)

Can you please describe the specific components that each of these structures are comprised of ( alpha helices and beta sheets) in more detail? Also, what do the different colors represent?  Your reply will be greatly appreciated.  The ligand that was assigned to me is tadalafil.

I have a fill in the blank question. "1) Heterophobic or Homotrophic effects= are changes in affinity due to substrate binding and cooperativity between different subunits. They give Allosteric rate curves their Sigmoid shape. 2) Hetero or Homotrophic effects=are changes in affinity due to binding of an effector to an Allosteric site.  Allosteric sites are usually 3)located outside or inside the active site.  Positive Allosteric effectors (activators) shift the rate curve 4) Left or Right, where Negative effectors shift it 5) right or left.  Positive Allosteric effectors usually stabalize the 6)T or R state.  Negative efftors usually satbalize the R state."   Thank You!!!

Please correct answer and don't use hend raiting