GFP-LAMA-F98 a GFP enhancer nanobody with cpDHFR insertion,Dihydrofolate reductase,GFP-LAMA-F98 a GFP enhancer nanobody with cpDHFR insertion,Dihydrofolate reductase,Dihydrofolate reductase,GFP-LAMA-F98 a GFP enhancer nanobody with cpDHFR insertion,Dihydrofolate reductase,GFP-LAMA-F98 a GFP enhancer nanobody with cpDHFR insertion