@article{ETD, recid = {2413}, author = {Youngs, Heather}, title = {Structure/function studies of manganese peroxidase}, publisher = {Oregon Health and Sciences University}, school = {Ph.D.}, address = {2003-05-01}, number = {ETD}, abstract = {Lignin is a cell wall polymer that provides rigidity, cell adhesion, andmicrobial resistance to vascular plants. A sort of natural plastic, lignin contains more than 13 different randomly arranged chemical linkages and is responsible for sequestering roughly 25 % of the world's terrestrial biomass. The resulting heterogeneous three-dimensional matrix is resistant to enzymatic hydrolysis and is chemically stable under most environmental conditions. White-rot fungi are the only organisms capable of completely degrading the lignin polymer, and manganese peroxidase is a key enzyme in this process. It is the only enzyme known that selectively binds Mn2+, oxidizes it and releases Mn3+. In this work, the unique Mn- binding site of the enzyme was probed by site-directed mutagenesis.}, url = {http://digitalcollections.ohsu.edu/record/2413}, doi = {https://doi.org/10.6083/M40Z71K5}, }