. ‘ Department of Biology
Yale U niv er Sl { y Osborm Memorial Laboratories
PO. Box 6666
New Haven, Connecticut 06511-7444

Telephone: 203 432-3850
Telex: 9103500618

July 20, 1992

Dear Josh:

I neglected to include, on the description
sent to you for strain ZIP514, the latest word on
474,

The descriptions for deletions keep changing as
more detailed information becomes available. Only
after they are sequenced does one know the extent of
the deletion exactly.

It has now been shown thata/4 deleted cyn
(Sung et al. 1987 J.Bacteriol.169:2639) and
codA (Kilstrup et al.1987 J.Bacteriol. 171:2124).

ek woushes.
Fee va, if
ue
Rehree—

ajo 624