Looks like this particular gene has been definitively linked with Longevity. My questions to the molecular biologists out there are:
How does this help us out as a species? In what way could finding a gene linked to longevity actually help us live longer? More importantly, how can it help ME live longer? 
Or do we even know if this can translate into something we could use at all?
The fact that the article says that the gene is much more evident in 100 year olds than 95 year olds tell me that it only makes a difference in those last few years. I would not be willing to undergo any procedure just for a chance to make it past 95 myself. At least until we were sure there were NO side effects.
Heck, you might even be able to argue that that particular gene INCREASES your chance of death a gazillion different ways way before you get old and only helps you a little once you get into you 90’s.
So, as a statistically live longer gene, it could actually be a bad thing.
There are a number of genes linked to longevity in various species. I just went to a presentation today on the discovery of two more. The main value of these discoveries is not so we can give a shot that will add a few hundred years to your life - that’s just not feasible - but instead, studying what these genes do give insight into how aging actually happens. Many genes responsible for NAD metabolism, for instance, have been connected to long life in mice, which is kind of surprising. The more we know about it, the better the chance of someday being able to do something about it.
Well, I’ve got centenarians on both sides of my family, and I’d be happy to help you with that injection. My wife may have a thing or two to say about it though.
Life is short…
Boo! Hiss!
Ok, Really an insightful answer. Thanks
Just like Tithon, the thing to be concerned with isn’t just the immortality. If you just keep getting older, you’re going to be miserable.