CGSC Strain#: 4017
Strain Designation: HfrH 165/70     
Source of Strain: F. Bonhoeffer
Sex: Hfr
Point of Origin#: 1
Map Position: 96.80
Direction of Marker Transfer: Clockwise
Chromosomal Markers: λ-,
relA1,
thyA11,
spoT1,
thiE1,
dnaB70(ts)
Strain Comments: - Derivation given p.9.2. Also called X1006, p.9.2.
- thyA11-- Strains with this marker must have their medium supplemented with thymine (25ug/ml). This is true even for rich medium such as LB. Otherwise thymine starvation can lead to thymineless death.
- spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
- thiE1 was formerly called thi-1
- ts = Temperature Sensitive
References: - Bonhoeffer, F 1966. DNA transfer and DNA synthesis during bacterial conjugation. Z. Vererbungsl. 98(2):141-9.