It is all-but-impossible to interact with other students during class time in the front row.
The relatively rigid conformation of Lys42 due to the interaction with Glu68 makes it impossible for Lys42 to interact with Asp96 of the α3 domain of HLA-A*0201 HLA-A*0201
Immigrant rights groups fear the bill may be broadly interpreted in a way that makes it next to impossible for undocumented immigrants to interact with the government -- even when they are legally allowed to do so.
Superimposition of our tertiary model with αIIbβ3 heterodimer reveals steric clashes, making it extremely difficult, if not impossible, for both the subunits to interact with skelemin in the presence of intersubunit clasp.
"It's almost impossible for a normal human being to interact with a lender".
In past elections it was almost impossible for young voters to touch candidates, to interact with them directly, to get a feel for who they are.
The men I was being forced to interact with often didn't live in my city, or even my state, which makes it literally impossible to date.
You get to interact with people.
They want to interact with us.
