+------------------------OBJ:V-N-----------------------+     
                                                                          +-------------COMP_with:N-N------------+                  |             +----------MOD_ATT:N-N----------+        |     
+---SUBJ:V-N--+--------COMP_by:V-V--------+------------OBJ:V-N------------+-------COMP_with:N-N------+           |                  |             |         +-----MOD_ATT:N-N-----+        |     
|     +MOD:V-A+---OBJ:V-N---+             |           +COMP_in:A+MOD_ATT:N+               +MOD_ATT:N-+           +COMP_of:+-SUBJ:V-N+             |         |             +MOD_ATT+MOD_ATT:+     
|     |       |             |             |           |         |         |               |          |           |        |         |             |         |             |       |        |     
We directly tested this hypothesis by performing in vitro transcription assays with reconstituted GENEXXX and a set of plasmids containing the GENEXXX , GENEXXX , and GENEXXX promoter regions .
COMP_by:V-V (tested,performing)
COMP_with:N-N (assays,set)
COMP_with:N-N (assays,GENEXXX)
MOD_ATT:N-N (promoter,GENEXXX)
OBJ:V-N (containing,regions)
MOD_ATT:N-ADJ (GENEXXX,reconstituted)
SUBJ:V-N (tested,We)
MOD_ATT:N-N (assays,transcription)
OBJ:V-N (performing,assays)
MOD_ATT:N-N (promoter,GENEXXX)
COMP_in:ADJ-N (transcription,vitro)
MOD:V-ADV (tested,directly)
MOD_ATT:N-N (regions,promoter)
SUBJ:V-N (containing,plasmids)
MOD_ATT:N-N (promoter,GENEXXX)
OBJ:V-N (tested,hypothesis)
COMP_of:N-N (set,plasmids)