Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Plasmid profiles of L. lactis subsp. cremoris Ropy352 and its spontaneous nonropy mutants. Lane A, supercoiled plasmid ladder (16,210, 14,174, 12,138, 10,102, 8,066, 7,045, 6,030, 5,012, 3,990, 2,972, and 2,067 bp). Lanes B, C, and D, spontaneous nonropy mutants L. lactis subsp. cremoris EK316, EK317, and EK318, respectively. Lane E, wild-type L. lactis subsp. cremoris Ropy352. The arrow indicates the plasmid absent from the nonropy mutants.
