Protein
Isoaspartyl peptidase/L-asparaginase
Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
Function
Degrades proteins damaged by L-isoaspartyl residue formation (also known as beta-Asp residues). Probably performs the final step in the degradation of the reserve polymer cyanophycin (depolymerizes the building block L-beta-Asp-Arg). Also has L-asparaginase activity.
Similarity
Belongs to the Ntn-hydrolase family.
Sequence
MTPKLIIHGGASSLDDKGGLATVRQSLHQIVAAVYETLTAGGSAMDAVVQGCELLENEPRFNAGTGSVLQSDGQVRMSASLMDGDRQNFSGVINVSRIKNPIQMAQFLQGQTDRILSDYGAADLAREMQLPIYDPATDFRIQEWMEERGEDVRKKMARLIADPTVGIEARKGTIGVVALDANGKIAAGTSTGGKGLERIGRVSDSAMPAGNYATRFAGVSCTGVGEDIINECLAAKVVIRVKDGQNLAQAMAKSITEALENNTDLGAIALDHQGHIAWGKTCPVLLAAYHTGTAIGDTLELTDGDHYGNASILKLQKTVKKIQTKTRGK