title: A calcium-fortified viral matrix protein.
abstract: In this issue of Structure, Leyrat and colleagues provide the first structural analysis of the human metapneumovirus (HMPV) matrix protein, a key regulator of viral assembly. Though structurally similar to other matrix proteins, two calcium binding sites suggest intriguing differences in regulation.
authors.affiliation: Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO 63110, USA. Electronic address: gamarasinghe@path.wustl.edu.
authors.forename: Gaya K
authors.initials: GK
authors.lastname: Amarasinghe
authors.affiliation: Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40536, USA. Electronic address: rdutc2@uky.edu.
authors.forename: Rebecca Ellis
authors.initials: RE
authors.lastname: Dutch
mesh_terms: D002118:Calcium / Q000737:chemistry*; D002135:Calcium-Binding Proteins / Q000737:chemistry*; D006801:Humans; D029121:Metapneumovirus / Q000737:chemistry*; D014763:Viral Matrix Proteins / Q000737:chemistry*; D014771:Virion / Q000737:chemistry*
chemical_list: D002135:Calcium-Binding Proteins; D014763:Viral Matrix Proteins; D002118:Calcium