Figure 1 Analysis of pIJ8600-based transconjugants
of S. rimosus. (a) Schematic representation
of pIJ8600 integration at the attB site
of the S. rimosus chromosome. pIJ8600
carries attP (striped box) and the thiostrepton
resistance gene (tsr) (dotted box) and integrates
at the attB region (shaded box) on the
wild-type chromosome (thick line). The
attachment sites attL and attR are the left
and right hybrid sites formed after integration.
The 2Æ05-kb HindIII ⁄ SacI fragment used
as hybridization probe is indicated as a thick
bar. Arrowed lines represent the expected
HindIII and SacI fragments with their sizes (in
kb). (b) Southern blot probed with the 2Æ05-
kb HindIII ⁄ SacI fragment containing the attP
site of pIJ8600. HindIII ⁄ SacI digested DNAs
from S. rimosus R7 (lane 1), S. rimosus
M4018 (lane 2), pIJ8600 (lane 3), transconjugants
of R7 (lanes 4–7), transconjugants of
M4018 (lanes 8–11).