CGSC Strain#: 5506
Strain Designation: 10B5      Source of Strain: G.F. Sprague
Sex: Hfr    Point of Origin#: 2A   Map Position: 12.20   Direction of Marker Transfer: Counterclockwise
Chromosomal Markers: garB10, fhuA22, ΔphoA8, ompF627(T2R), fadL701(T2R), relA1, glpR2(glp^c), glpD3, pitA10, spoT1, pst-2, rrnB-2, mcrB1, creC510
Strain Comments:

• glpD3-- Loss of G-3-P dehydrogenase (aerobic) results in inability of strains to grow on glycerol or glycerol-3-P as sole carbon source.
• glpD3-- GlpD loss also results in stasis with gluconeogenic C sources, e.g.,succinate. glpA or glpD mutants should be grown on min.salts+1% glycerol-free casein hydrolysate+1% glucose.
• spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
• 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
• glp^c = constitutive expr.glp regulon
• T2R = T2 Resistant

References:

• Sprague, G.F., R.M. Bell, J.E. Cronan 1975. A mutant of Escherichia coli auxotrophic for organic phosphates: evidence for two defects in inorganic phosphate transport. Mol.Gen.Genet. 143:71-77