PBP Deletion Mutants of Escherichia coli Exhibit Irregular Distribution of MreB at the Deformed Zones

Vijayan, Saptha; Mallick, Sathi; Dutta, Mouparna; Narayani, M.; Ghosh, Anindya S.

PBP Deletion Mutants of Escherichia coli Exhibit Irregular Distribution of MreB at the Deformed Zones

2014

Vijayan, Saptha | Mallick, Sathi | Dutta, Mouparna | Narayani, M. | Ghosh, Anindya S.

MreB is a cytoskeletal protein, which is responsible for maintaining proper cellular morphology and is essential for cell survival. Likewise, penicillin-binding protein 5 (PBP5) helps in maintaining cell shape, though non-essential for survival. The contradicting feature of these two proteins paves the way for this study, wherein we attempt to draw a relation on the nature of distribution of MreB in PBP deletion mutants. The study revealed that the uniform MreB helices/patches were destabilized/disturbed at the zone of deformities of the PBP mutants, whereas the helical patterns were retained at the regions maintaining a rod shape. We interpret that MreB remains functional irrespective of its distribution being misguided by the aberrant shapes of PBP mutants.

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