Subject: Helping FlyBase: ADRC-50196 Dear William, We are currently curating the abstracts for the upcoming 46th (San Diego) Annual Drosophila Research Conference, for FlyBase. I am writing in connection with your abstract: A role for the Fray kinase in nerve glia to regulate ion homeostasis. You mention a gene symbol that is new to FlyBase, NCC69. Do you know which of the Genome Project CG annotations your gene corresponds to? All the CGs have corresponding gene records in FlyBase already and we don't like to make duplicate records for what is actually the same gene unless we can't avoid it. The CG symbols become synonyms when an annotation is named with a more descriptive or functional name. Also, if you have let me know the full name for NCC69 I can enter it into the database from the outset. With best wishes, Rachel. Subject: Re: Helping FlyBase: ADRC-50196 Hi Rachel, NCC69 corresponds to CG4357. I have tentatively named it that because it is a homolog of the mammalian NCC (sodium chloride cotransporter) and NKCC (sodium potassium chloride cotransporter). I don't yet know which ions pass through NCC69. The '69' refers to its location in the Drosophila genome (to distinguish it from NCC83). Since I submitted the abstract, it has come to my attention that some people object to the 'cotransporter' nomenclature, and prefer to use the term 'solute carrier.' This is to distinguish this family of molecules from the ABC transporters. Flybase uses the term 'symporter' for CG4357. However, the vast majority of the 'functional' literature refers to this class of molecules as cotransporters. That's the story behind NCC69. I don't know if Flybase wants to rename CG4357 at this point, or if it would be better to wait until we more information on its function and/or decide whether flies will follow the 'solute carrier' nomenclature of the genome jocks. Hope this is helpful. Please let me know what you decide. Best, Billy