Sentence examples for but these structures do from inspiring English sources

But these structures don't identify themselves.

Their role is currently unclear but these structures do reveal how the canonical 12 TM MFS fold, observed previously for other members of this superfamily [12,13,18,33,37,38], can accommodate additional helices.

However, these structures do not correspond to all the community, but are rather used as seeds for computing communities.

These structures don't seem to be needed either.

These structures do not emerge spontaneously.

These structures do not provide adequate protection from lightning.

Hanneman and Wilson feel that these structures do a lot to improve feline behavioral issues.

These structures do not exist in Gram-positive bacteria.

However, these structures do not contain components of the stator and the export apparatus.

These structures do not induce antibody production, allowing for repeated delivery and therapy.

Which one of these structures does the United States have, and why do you think this?