摘要:
L-lysine produced by Brevibacterium or Corynebacterium mutants that are resistant to .alpha.-aminolauryllactam, .gamma.-methyl-lysine or N.sup..omega. -carbobenzoxy lysine.
摘要:
A method for producing L-proline by fermentation which comprises culturing an L-proline producing mutant in a culture medium until L-proline is accumulated in the culture medium, and recovering the accumulated L-proline; said mutant belonging to the genus Brevibacterium, Corynebacterium or Microbacterium and being resistant to DL-3,4-dehydroproline.
摘要:
This invention relates to a human T or B cell line carrying at least one Ela human adenovirus 12-type gene or fragment thereof; said cell line being capable of spontaneously producing an immmunologically active substance. This invention also relates to a process for producing an immunologically active substance comprising culturing a human B- or T- cell line carrying at least one human Ela adenovirus 12-type gene or fragment thereof in a culture medium capable of supporting growth thereof for a period of time effective to attain a spontaneous production of the substance thereof.