Purification, crystallization and preliminary crystallographic analysis of peroxidase from the palm tree Chamaerops excelsa

Plant peroxidases are presently used extensively in a wide range of bio­technological applications owing to their high environmental and thermal stability. As part of efforts towards the discovery of appealing new biotechnological enzymes, the peroxidase from leaves of the palm tree Chamaerops excelsa (CEP) was extracted, purified and crystallized in its native form. An X-­ray diffraction data set was collected at a synchrotron source and data analysis showed that the CEP crystals belonged to the orthorhombic space group P2₁2₁2₁, with unit-cell parameters a = 70.2, b = 100.7, c = 132.3 Å.