What proteins are associated with Lindenwood University-Belleville?
SELECT T2.protein_name   FROM institution AS T1 JOIN protein AS T2 ON T1.institution_id   =   T2.institution_id where T1.institution = "Lindenwood University–Belleville"
proteins associated with a specific institution refers to a JOIN between tables 'institution' and 'protein' on their shared identifier 'institution_id'; the specific institution mentioned is 'Lindenwood University–Belleville'.