The term "positioned against" is correct and usable in written English.
It is often used to refer to opposing views or stances, such as in the phrase "positioned against one another." For example, "The two sides are positioned against each other, with one supporting gun control legislation and the other advocating for less regulation."
Electrostatic potential calculated for the final stage of the DNA binding process shows that the DNA backbone is properly positioned against the positively charged regions of the protein with the DNA major/minor grooves positioned against the negatively charged regions of the DNA-binding groove along the entire DNA molecule (Figure 5B).
Do not remove either rail, even if the bed is positioned against a wall.
The main orchestra, positioned against one wall of the hall, was woefully muffled.
Cots and a table were brought in, and a handheld radio and switchboard were positioned against the green walls.
With three Islanders positioned against the boards, Jonsson received the puck in the middle from Brad Isbister.
His images are level and carefully arranged, the Yokai seemingly positioned against instead of within their environments.
The scale of Tamara Riewe and Samuel von Wentz's microscopic bodies positioned against the Hudson River was austere and astounding.
They stand like statues, apparently frozen still, positioned against the snowbound winds that drive the snow across the picture in silvery blizzards.
The land is thick with pine bushes, like huge oversized brittle dandelions, positioned against the dense green vegetation and scorched red soil.
But I am worried because, despite Alexis Tsipras' declared intentions to fight against austerity, the conservative political forces in Europe seem irremovably positioned against that prospect".
Mouths agape, we sank onto a sumptuous leather couch positioned against exposed brickwork and signalled the waiter to bring us something suitably strong.
