CGSC Strain#: 5439
Strain Designation: H12R3a      
Source of Strain:  Sex: Hfr 
   Point of Origin#: 2A
   Map Position:  12.20
   Direction of Marker Transfer:  Counterclockwise 
 Chromosomal Markers: garB10, 
fhuA22, 
phoA37, 
ompF627(T2R)
, 
fadL701(T2R)
, 
relA1, 
pitA10, 
spoT1, 
phoT-35, 
rrnB-2, 
mcrB9999, 
creC510Strain Comments: - spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
- phoT-35-- is a  phoS or  phoT mutation.                                                                                                                                                                                                                    
- rrnB-2-- : loss of spacer loop sequence                                                                                                                                                                                                                                
- creC510-- The constitutive phenotype is due to an R77P amino acid substitution
- creC510 was formerly called phoM510
- Const = constitutive
- T2R = T2 Resistant
References: