Merck Drug discovery > Target Discovery Products & Reviews

This Lentiviral Packaging Mix is an optimized formulation of two plasmids expressing the key HIV packaging genes and a heterologous viral envelope gene.

Universal negative control CRISPRs have been designed not to recognize any sequence in the human, mouse or rat genome. 

Compare and contrast the features of a wide variety of guide RNA (gRNA) and Cas9 products for in vitro and in vivo CRISPR experiments. Select the best formats for your mammalian or plant applications: SygRNA ® synthetic gRNA, plasmid DNA, lentiviral particles, and proteins.

An easy-to-use, modular platform to co-culture different cell types in discrete 3D and 2D compartments.

Exclusive human or mouse whole genome arrayed libraries developed with the Wellcome Sanger institute

Pooled CRISPR screening with 10x Genomics compatibility

for Latex Agglutination and Latex Turbidimetry Immunoassay

from Saccharomyces cerevisiae, ≥99%.

Powder, γ-irradiated, BioXtra, suitable for cell culture.

Our Smart SPME fibers are equipped with a unique Smart chip that offers traceability, ease-of-use, and increased productivity. The smart SPME fibers are an extension of our expertise and innovation from traditional SPME coatings to smart SPME format for accurate, reliable, and consistent results.

The over coating of fibers is a new technology in fiber coating to protect the SPME fiber from matrix components. This allows for immersion of the fiber directly into complex samples ensuring a more efficient extraction (e.g. of semivolatile compounds). Polydimethylsiloxane (PDMS) is used to overcoat a PDMS/divinylbenzene (DVB) fiber. The resulting fiber is more physically robust and resistant to chemical fouling and allows f…

The nitinol-core of SPME fibers enhances the fiber performance and the precision of chromatographic results to enhance lot-to-lot and fiber-to-fiber reproducibility, increase fiber durability, and maintain selectivity and inertness compared to fused silica core fibers.

Pooled and Arrayed Genome-Wide LentiORF Libraries for High-Throughput Screens or Targeted Experiments

Recombinant PURedit Cas9 protein from Streptococcus pyogenes is a ready-to-use reagent for genome engineering experiments

Recombinant Cas9 Plus protein from Streptococcus pyogenes is a ready-to-use reagent for genome engineering experiments.

Recombinant Cas9-GFP protein from Streptococcus pyogenes is a ready-to-use reagent for genome engineering experiments.

Trusted TRC (The RNAi Consortium) content with shRNA targting 20,000+ human or 21,000+ mouse genes including TRC 1.5 and 2.0 (unique and validated) add-ons which are exclusive to Sigma

The human CRISPR ′Brunello′ pooled library is designed using optimized metrics, as published by, Doench et al. Nat Biotechnol. (2016) and described further in Sanson, K.R., et al. Nat Commun (2018)

The Human Whole Genome Toronto KnockOut Library v3 (TKOv3) is optimized for editing efficiency using empirical data described in the findings by the Moffat lab.

The human, paired guide Poison (pgPoison) library targets 3` splice sites with paired guide RNAs for alternative exon removal (pgRNAs), induce skipping of "poison" cassette exons and corresponding upstream constitutive exons in ultraconserved regions.

The mouse CRISPR "Brie" lentiviral pooled libraries are designed using optimized metrics, as published by Sanson, K.R., et al. Nat Commun 9, 5416 (2018), which combine improved on-target activity predictions (Rule Set 2) with an off-target score, the Cutting Frequency Determination (CFD)

The Human CRISPR inhibition (CRISPRi) library (Dolcetto) is a single compact library that inhibits over 18,000 human genes and is used for genome-wide inhibition screening using a KRAB-dCas9 effector.

The 10x Compatible Human CRISPRi Kinase Phosphatase Drug Targets Kit (Druggable Genome) contains one sub-pool of the top two ranked sgRNAs per gene for increased sensitivity and includes non-targeting controls built-in.

The Human CRISPR activation library (Calabrese) activates over 18,000 human genes and is used for genome-wide activation screening. The library is designed to be compact and efficient to maximize screening efficiency and performance, as published by Sanson, K.R., et al. Nat Commun 9, 5416 (2018).

The mouse CRISPR activation library (Caprano) activates over 22,000 mouse genes and is used for genome-wide activation screening.