Gonorrhea acquires a piece of human DNA

If a human cell and a bacterial cell met at a speed-dating event, they would never be expected to exchange phone numbers, much less genetic material. In more scientific terms, a direct transfer of DNA has never been recorded from humans to bacteria.

Until now. Northwestern Medicine researchers have discovered the first evidence of a human DNA fragment in a bacterial genome – in this case, Neisseria gonorrhoeae, the bacterium that causes gonorrhea. Further research showed the gene transfer appears to be a recent evolutionary event.

The discovery offers insight into evolution as well as gonorrhea’s nimble ability to continually adapt and survive in its human hosts. Gonorrhea, which is transmitted through sexual contact, is one of the oldest recorded diseases and one of a few exclusive to humans.

“This has evolutionary significance because it shows you can take broad evolutionary steps when you’re able to acquire these pieces of DNA,” said study senior author Hank Seifert, professor of microbiology and immunology at Northwestern University Feinberg School of Medicine. “The bacterium is getting a genetic sequence from the very host it’s infecting. That could have far reaching implications as far as how the bacteria can adapt to the host.”

It’s known that gene transfer occurs between different bacteria and even between bacteria and yeast cells. “But human DNA to a bacterium is a very large jump,” said lead author Mark Anderson, a postdoctoral fellow in microbiology. “This bacterium had to overcome several obstacles in order to acquire this DNA sequence.”

  • Share/Bookmark

Leave a Reply

You must be logged in to post a comment.

Radio Archives

Fundraising with GoGetFunding
Fundraising with GoGetFunding

Give Your Support

The Global Reality represents a tireless effort to search, gather, and present information that even some alternative media channels refuse to discuss, let alone the mainstream. This effort is provided with no advertisements, no selling of products or services that are irrelevant and useless. There is only one sponsor: YOU!

Support the information that's in your right to know, that "they" dare not want you to know.

Notice: We can now take manual credit card entries for DVD's or donations. Those who do not want to use Paypal can now send your credit card number, expiration date, 3 digit security code and zip code to globalrealityshow@gmail.com along with the amount of purchase and we can process your order into our Paypal account without you having to use Paypal at all.

One-Time Donation

Donation Subscription

Monthly Recurring Donations
Your Own Amount: $

Join Us on FedBook