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LUTHOR HD Pool

High-Definition single-cell RNA sequencing in one tube

LUTHOR HD POOL

Down to single cells or 10 pg RNA input

Extraction-free RNA-Seq library preparation from as low as one single cell
Icon_142-Money-Discount

Down to 2 EUR per library

Reduced costs with bulk configurations
Icon_27-Sequencing

Up to 36,864 samples per run

Triple-indexing allows up to 36,864 samples to be sequenced simultaneously

Up to 2,548 saved pipet tips (96 preps)

>8x less consumables with LUTHOR HD Pool than with conventional TSO-based methods

LUTHOR High-Definition Pool Single-Cell 3′ mRNA-Seq Library Prep Kit

LUTHOR HD Pool benefits from the original THOR technology to amplify minute amounts of input RNA. The Pool version includes carefully selected LPi1 sample barcodes, which are added at the very start of the library preparation. Once LPi1 barcodes are linked to each sample, pooling of 8 – 96 samples in one tube simplifies the protocol significantly reducing hands-on time and consumable costs. LUTHOR HD Pool is ideal for experiments with homogeneous sample types.


Running large scale projects?

For more samples, we recommend adding Lexogen’s patented 12 nt UDI for triple indexing (LPi1, i5, i7), and up to 36,864 different barcode combinations. Lexogen UDI Sets are available in 96-well plates and allow mixing of different Lexogen libraries (e.g., CORALL, QuantSeq, LUTHOR) with LUTHOR HD Pool libraries in sequencing lanes, contact support@lexogen.com for more information.

Scaling up? Large project? Benefit from our bulk configurations and dynamic pricing schemes! Contact us at sales@lexogen.com for a personalized quotation. When opting for bulk configurations, UDI are included in each kit.


RNA-Seq directly from lysates

LUTHOR HD Pool does not require RNA extraction. If you start from isolated cells, a dedicated lysis buffer is provided in the kit.

Sample input ranges from 10 pg (equivalent to the RNA content in one single cell) up to 10 ng. Read depth of 1 M reads / sample is usually sufficient to capture the full gene diversity, while 5 M reads / sample may be necessary for a comprehensive analysis of all transcripts (typically, there are multiple transcripts for each gene).

Add-on kits:

  • If you want to combine more than 96 libraries at once, we recommend our 12 nt UDI Sets.
  • If you prepare 7 or more pools from a single LUTHOR HD Pool Kit, your will require the PCR Add-on Kit for Illumina (Cat. No. 208)

Performance

LUTHOR HD Pool provides the same ultra-high sensitivity as the original LUTHOR HD kit with added convenience of sample pooling. It is also the ideal complement to QuantSeq-Pool for inputs < 10 ng. At Lexogen, we will always have a 3’ mRNA-Seq solution for pooled samples!
LUTHOR HD Pool provides exceptional sensitivity and high correlation, even for inputs as low as one cell.
Figure 1| LUTHOR HD Pool 3’ mRNA-Seq Read Statistics. DU145 cell line, separate pools of 8 single cells, 8x 10 cells, and 8x 100 cells. A) Scatter plot showing average gene number (after UMI collapsing) per cell for 8x 1 cell (light green), 8x 10 cells (dark blue), and 8x 100 cells (light gray) as a function of read depth. Gene detection threshold: ≥1 CPM. B) Same as A, but UMI counts (gene-based collapsed). C) Correlation plots with two exemplary samples for each pool, orthogonal R2 value computed on 8 samples (28 combinations); downsampled to 1 M read depth at CPM ≥1.
A)
(cells) RSD: 1.6%
86.385.788.286.685.485.1
87.685.585.482.186.688.3
82.186.688.386.187.287.8
87.788.887.286.486.286.6
86.286.188.488.585.885.2
84.585.586.787.986.287.0
85.487.387.086.986.486.8
87.387.289.388.187.687.5
(UHRR) RSD: 1.4%
80.681.480.980.880.180.779.977.780.680.080.881.5
79.981.381.381.181.580.680.880.880.681.380.079.6
81.080.780.780.279.880.580.875.580.379.180.481.3
80.581.680.780.679.181.080.781.881.380.679.679.6
80.080.781.079.680.879.280.978.081.481.080.681.0
82.380.480.977.080.581.482.280.980.181.780.381.2
80.980.780.681.177.381.581.680.279.780.080.079.6
79.982.080.380.879.880.581.879.179.978.378.780.9
B)
(cells) RSD: 6.7%
11’16010’18010’44710’14910’39310’503
10’8809’9709’8787’69711’25710’942
9’43711’17810’09511’00010’91010’807
10’7939’60711’0169’75810’22510’550
10’66711’1169’2759’66110’39110’012
11’67610’55710’96711’43810’12610’073
10’31110’19611’03910’52610’2259’465
10’51510’53110’64411’93410’52310’446
(UHRR) RSD: 3.2%
119561229011935121101219712185116391089412123111571196312265
109761218011932124001246112101117241176912219122071188510923
124951272612152118991192511943125311210412281124641237012426
120901256512283120651183911758119871257812016120901197412225
116041213312103120041181811873121781139212158120571189612233
128161178712238116961240312353121711182711552121361199112356
121341197712463123581168112359128491225111902105411175011679
119181185112390121751199511889118271188811972115881165212136

Figure 2 | Series of 48 (cells) and 96 (UHRR) Pooled Libraries Prepared with LUTHOR HD Pool. Single DU 145 cells and 10 pg Universal Human Reference RNA input (UHRR, Agilent Cat No 740000). A) exonic read percentage (vs. intronic/intergenic, unique, and multimapped reads). B) number of genes. For B, data was downsampled (gene-based collapsing) to 1M reads (cells) and 1M*, 0.5M**, 0.25M** reads (UHRR). RSD: Relative Standard Deviation.

* samples in bold italic received less than 1M reads during sequencing.
** data not shown (patterns are very similar to 1M)

Pooled ngs library preparation approaches are inherently prone to some level of contamination between samples. At Lexogen, we made sure that cross-contamination is reduced to almost undetectable levels. Even when tips are not changed!

A)
UHRRArabidopsis thalianaCross-contamination
UHRR (6 samples)3,096,0736490.0%
Arabidopsis thaliana (2 samples)3,2991,128,3680.3%
total0.1%
B)
UHRRArabidopsis thalianaCross-contamination
UHRR (6 samples)3,245,0245950.0%
Arabidopsis thaliana (2 samples)3,2081,175,7750.3%
total0.1%
Figure 3 | Assessment of Cross-contamination between Pooled Samples. 2 samples of Arabidopsis thaliana RNA (200 pg each) and 6 samples of UHRR (200 pg each) were pooled and prepared with LUTHOR HD Pool. Gene counts measured on data downsampled to 1M read/sample (read counts are cumulated in the table). Cross-contamination calculated as the percentage of cross-species gene counts over total species-specific gene counts. A) Tips are changed between each sample. B) Tips are not changed between samples during THOR reaction.

Workflow

Step1:
Total time for Step:
Hands-on time for Step :

Single animal cells (e.g., sorted by FACS) or ultra-low input RNA (10 pg - 10 ng)

The primer contains Unique Molecular Identifiers (UMI, in red), a sample barcode (LPi1, in light blue), a partial Illumina-compatible P7 linker (blue), and a T7 promoter sequence (light brown).
The proprietary end repair step removes the single-stranded 3’ poly(A) overhang and generates a double stranded T7 promoter sequence for RNA amplification.
After the initial THOR reaction, samples are combined by pooling, therefore saving time and effort during the subsequent protocol steps.

During a 2-hour (optional: overnight) in vitro transcription step the original mRNA template is copied repeatedly by linear amplification.

Antisense-RNA copies are generated which contain the partial Illumina compatible P7 linker at the 5’ end.
LUTHOR library generation is initiated by random priming using Lexogen’s proprietary Displacement Stop technology. Random primers contain partial Illumina-compatible P5 sequences (green).
During the library amplification step sequences required for cluster generation are introduced. Optionally, i5 and i7 indices (e.g., Lexogen 12 nt UDI) can be introduced. These optional indices are required for multiplexing more than 96 samples.
LUTHOR HD Pool contains the Read 1 linker sequence in the random primer, hence NGS reads are generated towards the poly(A) tail and directly correspond to the mRNA sequence. LUTHOR HD Pool libraries should be sequenced in asymmetric PE mode: Read 1 for the insert, Read 2: 24 nt, i.e., 12 nt for the LPi1 sample barcode and 12 nt for the UMI.

FAQ

Frequently Asked Questions

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LUTHOR HD Pool Single-Cell 3' mRNA-Seq

Safety Data Sheet

If you need more information about our products, please contact us through support@lexogen.com or directly under +43 1 345 1212-41.

Ordering Information

Cat. №Product Name
205.96LUTHOR High-Definition Pool Single-Cell 3' mRNA-Seq Library Prep Kit, 96 preps

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