Escherichia coli strain K-12 substrain MG1655 Study
Model organism for genetics, physiology, biochemistry
<i><B>Escherichia coli</i> str. K-12 substr. MG1655</B>. Non-pathogenic strain MG1655 approximates wild-type <i>E. coli</i> as it has been maintained with very little genetic manipulation except for the curing (removal) of bacteriophage lambda and the F plasmid. MG1655 was derived from strain W1485, which was derived by Joshua Lederberg from the original K-12 isolate obtained from a patient in 1922.