A novel Arabidopsis chloroplast envelope membrane protein containing a putative LrgB domain related

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  A protein encoded by Atlg32080 was uniformly identified in proteomics of Arabidopsis chloroplast envelope membrane proteins, but its function remained unclear.The protein, designated AtLrgB, has a putative LrgB domain in the C-terminus, while its N-terminal domain is similar to bacterial LrgA proteins.In bacteria, two homologous operons, lrgAB and cidAB, participate in an emerging mechanism to control cell death and lysis.Arabidopsis AtLrgB is expressed in leaves, stems and flowers, but not in roots.
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