Abstract
Hydroxylamine was used to induce mutants of the ColE1 derived plasmid pML2 that are inefficiently mobilized (Mob-) during conjugation by an Hfr donor. The ability of those mutants to be complemented by deletion mutants and Tn3 insertion mutants of ColE1 was examined. Three complementation groups were identified and localized on the ColE1 genetic map (Mob1, Mob2, and Mob3). One hydroxylamine mutant was not complemented by any mobilization deficient mutant but was complemented by mobilizable ColE1 mutants. Two hydroxylamine mutants were not complemented by any ColE1 derivatives. A mutant that had its relaxation nick site deleted had a markedly reduced mobilizability. The relationship between DNA relaxation nick site deleted had a markedly reduced mobilizability. THe relationship between DNA relaxation, replication and mobilization is considered.
TY - JOUR
T1 - A complementation analysis of mobilization deficient mutants of the plasmid ColE1.
AU - Inselburg,J,
AU - Ware,P,
PY - 1979/5/4/pubmed
PY - 1979/5/4/medline
PY - 1979/5/4/entrez
SP - 211
EP - 9
JF - Molecular & general genetics : MGG
JO - Mol Gen Genet
VL - 172
IS - 2
N2 - Hydroxylamine was used to induce mutants of the ColE1 derived plasmid pML2 that are inefficiently mobilized (Mob-) during conjugation by an Hfr donor. The ability of those mutants to be complemented by deletion mutants and Tn3 insertion mutants of ColE1 was examined. Three complementation groups were identified and localized on the ColE1 genetic map (Mob1, Mob2, and Mob3). One hydroxylamine mutant was not complemented by any mobilization deficient mutant but was complemented by mobilizable ColE1 mutants. Two hydroxylamine mutants were not complemented by any ColE1 derivatives. A mutant that had its relaxation nick site deleted had a markedly reduced mobilizability. The relationship between DNA relaxation nick site deleted had a markedly reduced mobilizability. THe relationship between DNA relaxation, replication and mobilization is considered.
SN - 0026-8925
UR - https://www.unboundmedicine.com/medline/citation/225640/A_complementation_analysis_of_mobilization_deficient_mutants_of_the_plasmid_ColE1_
L2 - https://doi.org/10.1007/BF00268285
DB - PRIME
DP - Unbound Medicine
ER -