The R gene product of bacteriophage lambda is the murein transglycosylase.
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Bienkowska-Szewczyk K, Lipinska B, Taylor A
The R gene product of bacteriophage lambda is the murein transglycosylase.
Mol Gen Genet. 1981;184(1):111-4.
- PubMed ID
- 6460914 [ View in PubMed]
- Abstract
The radioactively labeled proteins synthesised in Escherichia coli minicells infected by bacteriophage lambda R and lambda R+ were compared by polyacrylamide gel electrophoresis. lambda R mutants, which have lost the ability to lyse host cells, lack a polypeptide of molecular weight 17.5 KD corresponding to the molecular weight of murein transglycosylase - a bacteriolytic enzyme from lambda lysates which we have described previously. It has been shown by direct comparison using radio-labeled enzyme that transglycosylase comigrates with the R gene product. The enzyme was undetectable in induced cultures of E. coli W3350 su degrees (lambda cI857 Ram 5) and C600 (lambda cI857 acR301), while it was present in a lambda Rz mutant lysate. We conclude that the transglycosylase is the R gene product.