I've never connected to short-haul non-Schengen from FRA...

LH199 TXL - FRA Arriving at 20:55
LH1304 FRA - IST Departing at 21:40

I'm exactly at MCT. I never like being in that position, and I should've looked closer at the layover time when I booked this.

Is this realistic to make (with checked luggage) or should I try to rebook on an earlier flight from TXL?