The authors have agreed to standardizing, where possible, the nomenclature of genes encoding Serpin family members in FlyBase according to the system used in FBrf0213937 and FBrf0209216. In essence, this means: - gene symbols will have the stem 'Spn*' - this stem will be followed by the gene's cytological location - genes that map to the same cytological band are distinguished by a lowercase letter - gene fullnames will have the form 'Serpin *' This means that genes currently named Spn1-7 will be renamed in FlyBase. However, 'nec' ('necrotic') and 'Acp76A' (Accessory gland-specific peptide 76A) will retain their current nomenclature as these were first named for alternative, and entirely appropriate, reasons. Other comments: i) I think full name should be Serpin XXX rather than serine protease inhibitor XXX; for one thing, not all proteins identified as being a serpin or belonging to the serpin family, say, by homology, will actually be a serine protease inhibitor, that is, have that activity. (C. Hashimoto) ii) A large proportion of serpins are not protease inhibitors (and many serine protease inhibitors belong to the other families like kazal) that is unfortunate, but we are stuck with it. So I would call these proteins serpins rather than serine protease inhibitors. (D. Gubb) The complete list of standardized symbols/names is therefore: Spn27A Serpin 27A Spn28B Serpin 28B Spn28Da Serpin 28Da Spn28Db Serpin 28Db Spn28Dc Serpin 28Dc Spn28F Serpin 28F Spn31A Serpin 31A Spn38F Serpin 38F Spn42Da Serpin 42Da Spn42Db Serpin 42Db Spn42Dc Serpin 42Dc Spn42Dd Serpin 42Dd Spn42De Serpin 42De Spn43Aa Serpin 43Aa Spn43Ab Serpin 43Ab nec necrotic Spn43Ad Serpin 43Ad Spn47C Serpin 47C Spn53F Serpin 53F Spn55B Serpin 55B Spn75F Serpin 75F Acp76A Accessory gland-specific peptide 76A Spn77Ba Serpin 77Ba Spn77Bb Serpin 77Bb Spn77Bc Serpin 77Bc Spn85F Serpin 85F Spn88Ea Serpin 88Ea Spn88Eb Serpin 88Eb Spn100A Serpin 100A