peniciline
- This is a preview of the essay.
To view the full text you must login!
acylase) is made of two subunits (dark and light blue). Bound to the active site is penicillin (green) and a calcium ion (red).
Reset View of Penicillin Acylase from E. coli.
What sort of secondary structure is present in this enzyme? Are there any disulfide bonds? No, this protein lacks any cysteines and so there are no disulfide bonds holding the two subunits together.
Isolate the smaller subunit (dark blue) or the larger one (light blue) . Which subunit binds the calcium ion? How is the active site for penicillin formed?..