Abstract: The present invention relates to combinations of a linker bridged gene or domain fusion reverse transcriptase enzyme, and more particularly, combinations of a linker bridged gene or domain fusion reverse transcriptase enzyme and their fusion construction utilizing for more efficient and quality DNA synthesis in reverse transcription. The composition of the invention includes a polymerase domain; a linker, consisting of 3-40 amino acids; and an RNase H domain, wherein the RNase H domain is either unmodified or modified with point mutations. The composition may further include another mutated RNase H, a mutated RNase A, and an additional linker which consists of 3-40 amino acids.

Abstract: The present invention relates to methods and compositions having trehalose and DNA polymerase for facilitating the rapid and efficient amplification of nucleic acid molecules and the detection and quantitation of RNA molecules, and for increasing the detection sensitivity and reliability through generation of secure cDNA molecules prior to gene-specific primer dependent amplification. The reagent mixture comprises a ready to use reagent solution, wherein the solution comprises: (a) trehalose in a concentration between about 5% and about 35%; (b) a viral reverse transcriptase; and (c) at least one DNA polymerases, in a buffer suitable for use in a reverse transcription reaction, wherein the buffer comprises a co-factor metal ion and nucleoside triphosphates.

Abstract: The present invention relates to compositions and methods having propylene glycol and DNA polymerase for facilitating the rapid and efficient amplification of nucleic acid molecules and the detection and quantitation of RNA molecules, and for increasing the detection sensitivity and reliability through generation of secure cDNA molecules prior to gene-specific primer dependent amplification. The reagent mixture comprises a ready to use reagent solution, wherein the solution comprises: (a) propylene glycol in a concentration between about 20% and about 50%; (b) a viral reverse transcriptase; and (c) at least one DNA polymerases, in a buffer suitable for use in a reverse transcription reaction, wherein the buffer comprises a co-factor metal ion and nucleoside triphosphates.

Abstract: The methods and compositions for preparing cDNAs, and more particularly, compositions having propylene glycol for synthesizing a cDNA molecule or molecules from an mRNA template or population of mRNA templates under conditions sufficient to increase the detection sensitivity and cDNA yield and to simplify and improve the reliability of reverse transcription are provided. The reagent mixture comprises a ready to use reagent solution, wherein the solution comprises: (a) propylene glycol in a concentration between about 25% and about 50%; and (b) a viral reverse transcriptase selected from the group consisting of AMV RT, RSV RT, MMLV RT, HIV RT, EIAV RT, RAV2 RT, ASLV RT, RNaseH (?) RT, SuperScript II RT, and ThermoScript RT, in a buffer suitable for use in a reverse transcription reaction, wherein the buffer further comprises a co-factor metal ion and nucleoside triphosphates.

Abstract: The present invention relates to combinations of a linker bridged gene or domain fusion reverse transcriptase enzyme, and more particularly, combinations of a linker bridged gene or domain fusion reverse transcriptase enzyme and their fusion construction utilizing for more efficient and quality DNA synthesis in reverse transcription. The composition of the invention includes a polymerase domain; a linker, consisting of 3-40 amino acids; and an RNase H domain, wherein the RNase H domain is either unmodified or modified with point mutations. The composition may further include another mutated RNase H, a mutated RNase A, and an additional linker which consists of 3-40 amino acids.

Abstract: The present invention relates to methods and compositions having trehalose and DNA polymerase for facilitating the rapid and efficient amplification of nucleic acid molecules and the detection and quantitation of RNA molecules, and for increasing the detection sensitivity and reliability through generation of secure cDNA molecules prior to gene-specific primer dependent amplification. The reagent mixture comprises a ready to use reagent solution, wherein the solution comprises: (a) trehalose in a concentration between about 5% and about 35%; (b) a viral reverse transcriptase; and (c) at least one DNA polymerases, in a buffer suitable for use in a reverse transcription reaction, wherein the buffer comprises a co-factor metal ion and nucleoside triphosphates.

Abstract: The present invention relates to methods and compositions for preparing cDNAs, and more particularly, compositions having trehalose for synthesizing a cDNA molecule or molecules from an mRNA template or population of mRNA templates under conditions sufficient to increase the detection sensitivity and cDNA yield and to simplify and improve the reliability of reverse transcription. The reagent mixture comprises a ready to use reagent solution, wherein the solution comprises: (a) trehalose in a concentration between about 5% and about 35%; and (b) a viral reverse transcriptase selected from the group consisting of AMV RT, RSV RT, MMLV RT, HIV RT, EIAV RT, RAV2 RT, ASLV RT, RNaseH (?) RT, SuperScript II RT, and ThermoScript RT, in a buffer suitable for use in a reverse transcription reaction, wherein the buffer further comprises a co-factor metal ion and nucleoside triphosphates.