GenScript M-MuLV Reverse Transcriptase (M-MLV) is derived from a cloned region of the pol gene of MMLV and isolated from an E. coli strain overexpressing this construct. To increase cDNA yields and get a higher percentage of longer transcripts, the M-MLV Reverse Transcriptase has been modified with reduced RNase H activity, and expressed free of exogenous RNases and other nucleases. The enzyme can synthesize a complementary cDNA strand initiating from a primer using RNA as template (cDNA synthesis), making it ideal for a wide range of applications.