Analysis of evolution of carbonic anhydrases IV and XV reveals a rich history of gene duplications and a new group of isozymes.

Martti E E Tolvanen, Csaba Ortutay, Harlan R Barker, Ashok Aspatwar, Maarit Patrikainen, Seppo Parkkila

Institute of Biomedical Technology, University of Tampere, Finland and BioMediTech, FI-33014 Tampere, Finland. martti.tolvanen@uta.fi

Bioorganic & medicinal chemistry 2013 Mar 15

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Carbonic anhydrase (CA) isozymes CA IV and CA XV are anchored on the extracellular cell surface via glycosylphosphatidylinositol (GPI) linkage. Analysis of evolution of these isozymes in vertebrates reveals an additional group of GPI-linked CAs, CA XVII, which has been lost in mammals. Our work resolves nomenclature issues in GPI-linked fish CAs. Review of expression data brings forth previously unreported tissue and cancer types in which human CA IV is expressed. Analysis of collective glycosylation patterns of GPI-linked CAs suggests functionally important regions on the protein surface. Copyright © 2012 Elsevier Ltd. All rights reserved.

Citation

Martti E E Tolvanen, Csaba Ortutay, Harlan R Barker, Ashok Aspatwar, Maarit Patrikainen, Seppo Parkkila. Analysis of evolution of carbonic anhydrases IV and XV reveals a rich history of gene duplications and a new group of isozymes. Bioorganic & medicinal chemistry. 2013 Mar 15;21(6):1503-10