In biotechnology area, the product claims of patents which are based vector(carrier) and the sequence always starts as "protein encoded by bla bla"
However, what i understand is the sequence are implemented in vector and the vector with sequence produces protein (enzymes) after the product was placed in proper medium (petri dish or human). There is no protein before the use.
My question, When the third party sells the product, the product doesn't comprise any kind of protein, however the patent claim defines protein as an essential so there is no infringement, in my opinion.
In biotechnology, is an infrigment assesment is different? If not, is it more make sense that draft claim as a "vector comprising x sequence"?
P.S: I'm an electronic engineer who knowns very little about this technical area so let me know if i have wrong assumption about the subject.
From a comment by the OP
After more research, i found below claim structure. "X Vector (plasmid) comprising sequence Y encoding protein Z". Maybe, that one is right way to draft such a claim however i'm not still sure why there is "protein encoded" claim