MreB
MreB is a protein found in bacteria that has been identified as a homologue of actin, as indicated by similarities in tertiary structure and conservation of active site peptide sequence. The conservation of protein structure suggests the common ancestry of the cytoskeletal elements formed by actin, found in eukaryotes, and MreB, found in prokaryotes. Indeed, recent studies have found that MreB proteins polymerize to form filaments that are similar to actin microfilaments. It has been shown to form multilayer sheets comprising diagonally interwoven filaments in the presence of ATP or GTP.
| Cell shape determining protein MreB/Mbl | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| Symbol | MreB | ||||||||
| Pfam | PF06723 | ||||||||
| InterPro | IPR004753 | ||||||||
| CDD | cd10225 | ||||||||
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MreB along with MreC and MreD are named after the mre operon (murein formation gene cluster E) to which they all belong.
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