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. 1985 Apr;162(1):391-7.
doi: 10.1128/jb.162.1.391-397.1985.

Release of cell wall peptides into culture medium by exponentially growing Escherichia coli

E W Goodell, U Schwarz

Release of cell wall peptides into culture medium by exponentially growing Escherichia coli

E W Goodell et al. J Bacteriol. 1985 Apr.

Abstract

Escherichia coli W7 cells were found to release three different muropeptides into the culture medium: tetrapeptide (L-Ala-D-Glu-meso-diaminopimelic acid-D-Ala), tripeptide (L-Ala-D-Glu-meso-diaminopimelic acid), and a previously undescribed dipeptide (meso-diaminopimelic acid-D-Ala). From the rate of release of these three peptides, it was calculated that 6 to 8% of the murein in the sacculus was lost per generation.

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