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Low input NEBNext Ultra II RNA libraries retain complexity even at low input amounts
Nondir_RNA_Complexity_Figure3
Ribosomal RNA was depleted from 1 µg, 100 ng and 5 ng of Human Universal Reference RNA (Agilent #740000) with recommended amounts of ERCC RNA Spike-In Mix I (Thermo Fisher Scientific #4456740) using the NEBNext rRNA Depletion Kit (Human/Mouse/Rat) and libraries were then prepared using the NEBNext Ultra II RNA Kit. Libraries were sequenced on an Illumina NextSeq® 500 using paired-end mode (2x76 bp). Salmon 0.4.0 was used for read mapping and quantification of all ERCC transcripts. R2 values for linear fit are shown. TPM (Transcripts Per Kilobase Million) correlation analysis of the transcripts indicates excellent transcript expression correlation between the different inputs for Ultra II RNA libraries (A), including ERCC transcripts (B).

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Available Kits:

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NEBNext® Ultra™ II Directional RNA Library Prep Kit for Illumina®
Includes optimized mixes for directional RNA library preparation (fragmentation, cDNA synthesis, end repair/dA-tailing, adaptor ligation and PCR enrichment steps) for sequencing on the Illumina platform.
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NEBNext® Ultra™ II Directional RNA Library Prep with Sample Purification Beads
Includes optimized mixes for directional RNA library preparation (fragmentation, cDNA synthesis, end repair/dA-tailing, adaptor ligation and PCR enrichment steps) plus SPRIselect® beads for size selection and cleanup.