Coli B and K-12

[Diane Stothard]

In article <1994Aug18.134716.6730 at wisipc.weizmann.ac.il>,
Malin Gennady  <comalin at dapsas1.weizmann.ac.il> wrote:
>Does anybody know, what is the principal difference in
>two wild strains of Escherichia coli, B and K-12 from metabolic,
>genetical or physiologycal point of view.
>Any information will be appreciated.

In addition, does anyone know the amount of sequence divergence between these 
two strains based on the 16S rRNA gene, or any two strains of E. coli, for that
matter? Thanks in advance!

Diane