"Transcription termination factor" vs. "thyroid transcription factor" edit

Can somebody detail the distinction between the two? HGNC is pretty unclear about that, as it gives 'TTF1' both as an alias to 'NKX2-1' and as meaning 'transcription termination factor, RNA polymerase I' (http://www.genenames.org/cgi-bin/hgnc_search.pl?field=symb_prev_and_alias&andnot=AND&search_type=simple&anchor=equals&sortby=symbol&match=TTF1). Palpalpalpal (talk) 09:31, 13 August 2009 (UTC)Reply