definiens: shall mean transcription - based nucleic acid amplification using reverse transcriptase, RNApolymerase and [ ... * * * ... ] wherein ( a ) the reverse transcriptase and RNase H activities are provided by a [ ... * * * ... ] ( b ) said protein has a minimal reverse transcriptase activity of [ ... * * * ... ] ( where the unit definition and assay conditions areequivalent to those set forth below ) ; and ( c ) the amplification reaction is performed at [ ... * * * ... ] shall mean transcription - based nucleic acid amplification using reverse transcriptase, RNApolymerase and [ ... * * * ... ] wherein ( a ) [ ... * * * ... ] ( b ) [ ... * * * ... ] and ( c ) the amplification reaction is performed at [ ... * * * ... ] ENZYME ASSAYS[ ... *** ... ][ ... *** ... ]***Confidential Treatment Requested1 [ ... * * * ... ] [ ... * * * ... ] [ ... * * * ... ] Equivalent unit definitions and assay conditions may be substituted as long as they produce results that may be quantitativelyconverted by established valid procedures ( e.g., multiplication by a conversion factor or by reference to a standard curve ) tothe assay conditions and unit definitions set forth above