@misc{indiciaeb489a525fc57, title = {lac repressor mutants with double or triple exchanges in the recognition helix bind specifically to lac operator variants with multiple exchanges.}, author = {J Sartorius and N Lehming and B Kisters and B von Wilcken-Bergmann and B Müller-Hill}, year = {1989}, doi = {10.1002/j.1460-2075.1989.tb03500.x}, url = {https://pubmed.ncbi.nlm.nih.gov/2663473/}, note = {Source identifier: 2663473} }