lactoperoxidase

Lactoperoxidase

Short name=LPO
EC=1.11.1.7
Alternative name(s):
Salivary peroxidase
Short name=SPO
:Function
May contribute to airway host defense against infection. Ref.7
Catalytic activity
2 phenolic donor + H2O2 = 2 phenoxyl radical of the donor + 2 H2O.
Cofactor
Binds 1 calcium ion per heterodimer By similarity.
Binds 1 heme B (iron-protoporphyrin IX) group covalently per heterodimer By similarity.
Subcellular location
Secreted › extracellular space.
Tissue specificity
Mammary gland; milk and salivary gland. Found in bronchial submucosal glands. Ref.7
Sequence similarities
Belongs to the peroxidase family. XPO subfamily.