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After the meeting ended, Young-Joon went to the lab instead of his office.
“Do we have Streptococcus pyogenes by chance?” asked Doctor Lee Ju-Chan when Young-Joon ran into him at the lab entrance.
“I’m not sure. I think you’re going to have to ask the microbes team for that.”
Young-Joon called Choi Myung-Joon right away.
“Hello. Do we have any strains of Streptococcus pyogenes stored in the lab?”
—We don’t have any of that in the building. We only have beneficial bacteria and a few types of pathogens.
Choi Myung-Joon replied.
Streptococcus pyogenes was a type of bacteria that caused necrotizing fasciitis. A-Bio didn’t have this bacteria as they had never studied the diseases related to this bacteria before, but not A-Gen; as they had a huge resource for research, there were numerous types of organisms kept at their company.
Young-Joon contacted the Research Support Department and requested for Streptococcus pyogenes. He received the bacteria that evening, and it was shipped in the form of colonies in a solid culture medium. He also ordered some short strands of DNA, and those were shipped along with the bacteria as well. Using these, Young-Joon obtained a DNA copy of one of the Streptococcus pyogenes genes.
[Cas9]
Young-Joon had named this great gene; it meant CRISPR associated protein 9.
From decades ago, there were reports about an unknown DNA sequence called CRISPR—clustered regularly interspaced short palindromic repeats—in...



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