500

Gallic Acid, Anhydrous

Gallic Acid, Hydrate

Gallic Acid, Monohydrate, Purified

gamma-Butyrolactone (DEA List I Chemical), Reagent

gamma-Hexalactone

gamma-Terpinene

gamma-Undecanolactone

Gelatin, 250 Bloom, Powder, NF

Gelatin, Powder

Cas9 nuclease is an RNA-guided endonuclease that can catalyze cleavage of double stranded DNA. This kind of targeted nuclease is a powerful tool for genome editing with high precision. Cas9 protein forms a very stable ribonucleoprotein (RNP) complex with the guide RNA (gRNA) component of the CRISPR/Cas9 system. The Cas9 RNP complex can localize to the nucleus immediately upon entering the cell with the addition of a nuclear localization signal (NLS). There is no requirement for transcription and translation compared with mRNA or plasmid systems. Additionally, the Cas9 RNP complex is rapidly cleared from the cell minimizing the chance of off-target cleavage when compared to other systems (Kim, et al. 2014). This DNA-free system avoids the risk of inserting foreign DNA into the genome, which can be quite useful for gene editing-based disease therapy. GenScript has developed a Cas9-N-NLS nuclease which contains a nuclear localization sequence (NLS) on the N-terminus of the protein to meet all the researchers’ requirements (e.g. in vitro cleavage assay, RNP complex transfection, and micro injection).

Product Source:GenCrispr Cas9-N-NLS is produced by expression in an E. coli strain carrying a plasmid encoding the Cas9 gene from Streptococcus pyogenes with a N terminal nuclear localization signal (NLS).

Key Features

-DNA-free: no external DNA added to system

-High cleavage efficiency: NLS ensures the entry of Cas9 protein into nuclei

-Low off target: transient expression of Cas9 nuclease

-Time-saving: no need for transcription and translation

Applications

-Screening for highly efficient and specific targeting gRNAs by in vitro DNA cleavage.

–In vivo gene editing when combined with a specific gRNA by electroporation or injection.

GenCrispr NLS-Cas9-EGFP is a fusion protein developed by GenScript. It contains a nuclear localization sequence (NLS) on its N terminal and EGFP on the C terminal. Cas9 nuclease is an RNA-guided endonuclease that can catalyze cleavage of double stranded DNA. This kind of targeted nuclease is a powerful tool for genome editing with high precision. Cas9 protein forms a very stable ribonucleoprotein (RNP) complex with the guide RNA (gRNA) component of the CRISPR/Cas9 system. The Cas9 RNP complex can localize to the nucleus immediately upon entering the cell with the addition of a nuclear localization signal (NLS). There is no requirement for transcription and translation compared with mRNA or plasmid systems. Additionally, the Cas9 RNP complex is rapidly cleared from the cells minimizing the chance of off-target cleavage when compared to other systems (Kim, et al. 2014). The EGFP can be used as a reporter for tracking or sorting transfected cells, which enables the possibility of enriching cell populations for desired genome edits via fluorescence activated cell sorting (FACS). It significantly reduces the labor and cost associated with single cell cloning and genotyping in genome editing applications.

Product Source: GenCrispr NLS-Cas9-EGFP is produced by expression from an E. coli strain.

Key Features

-DNA-free: no external DNA added to system

-High cleavage efficiency: NLS ensures the entry of Cas9 protein into nuclei

-Low off target: transient expression of Cas9 nuclease

-Time-saving: no need for transcription and translation

Applications

-Screening for highly efficient and specific targeting gRNAs by in vitro DNA cleavage.

– In vivo gene editing when combined with a specific gRNA by electroporation or injection.

Cas9 nuclease is an RNA-guided endonuclease that can catalyze cleavage of double stranded DNA. This kind of targeted nuclease is a powerful tool for genome editing with high precision. Cas9 protein forms a very stable ribonucleoprotein (RNP) complex with the guide RNA (gRNA) component of the CRISPR/Cas9 system. The Cas9 RNP complex can localize to the nucleus immediately upon entering the cell with the addition of a nuclear localization signal (NLS). There is no requirement for transcription and translation compared with mRNA or plasmid systems. Additionally, the Cas9 RNP complex is rapidly cleared from the cell minimizing the chance of off-target cleavage when compared to other systems (Kim, et al. 2014). This DNA-free system avoids the risk of inserting foreign DNA into the genome, which can be quite useful for gene editing-based disease therapy. GenScript has developed a NLS-Cas9-NLS nuclease which contains a nuclear localization sequence (NLS) on both ends of the protein to meet all the researchers’ requirements (e.g. in vitro cleavage assay, RNP complex transfection, and micro injection).

Product Source: GenCrispr NLS-Cas9-NLS is produced by expression in an E. coli strain carrying a plasmid encoding the Cas9 gene from Streptococcus pyogenes with a nuclear localization signal (NLS) on both ends.

Key Features

-DNA-free: no external DNA added to system

-High cleavage efficiency: Double NLS ensures the efficient entry of Cas9 protein into nuclei

-Low off target: transient expression of Cas9 nuclease

Time-saving: no need for transcription and translation

Applications

-Screening for highly efficient and specific targeting gRNAs by in vitro DNA cleavage.

–In vivo gene editing when combined with a specific gRNA by electroporation or injection.

The
clustered regularly interspaced short palindromic repeats, known as CRISPR  systems are adaptive immune mechanisms commonly
present in archaea and bacteria. The CRISPR systems enable the host to specifically
target and cleave foreign nucleic acids thus targeting infectiousviruses and
plasmids. Recently, a type V CRISPR system has been identified in several
bacteria, the Cpf1 CRISPR from Prevotella and Francisella 1. In contrast to
Cas9 systems, CRISPR/Cpf1 systems are smaller in size, do not require an
additional trans-activating crRNA (tracrRNA), and allow for targeting of
additional genomic regions by cleaveing the target DNA proceeded by a short
T-rich protospacer-adjacent motif (PAM). On the other hand, the Cas9 system requires
a G-rich PAM following the target DNA. Furthermore, Cas12a/Cpf1 introduces a
staggered DNA double stranded break with a 4 or 5-nt 5’ overhang. Recombinant
Acidaminococcus sp. BV3L6 Cas12a (cpf1) nuclease is expressed in E. coli and
purified. The nuclease contains nuclear localization sequence (NLS) at the
C-terminus and 6× His-tag at the C-terminus.

GenCRISPR Cas13a (C2c2) Nuclease is an RNA-guided, RNA-targeting CRISPR enzyme, commonly referred to as C2c2. This enzyme is a member of Type VI CRISPR family containing a single protein effector with two HEPN domains. The Cas13a exhibits two RNase activities. The first activity, a cis- sequence-specific RNA guided cleavage, activates the secondary RNase activity of the enzyme, a non-specific trans- ribonuclease activity. This Cas13a protein can be applied to detect single RNA molecules with proven high specificity.

The GenCRISPR™
Cas9 v1.1 can be formed
with the guide RNA into a ribonucleoprotien (RNP) complex. The use of an RNP
complex to perform gene editing has been shown to reduce the challenges
encountered with other CRISPR gene editing techniques such as viral and plasmid
delivery. Challenges include off-target effects, cell viability and transcription/translational
challenges.

GenCRISPR™
Cas9 v1.1 is a tag free nuclease produced by expression in an E. coli strain carrying a plasmid
encoding the Cas9 gene from Streptococcus
pyogenes with a biparticle nucleus localization signal (BPNLS) at both
N-terminal and C-terminal. It has been reported that BPNLS is able to improve
the gene editing efficiency.

The GenCRISPR™
Cas9 v1.2 can be formed
with the guide RNA into a ribonucleoprotien (RNP) complex. The use of an RNP
complex to perform gene editing has been shown to reduce the challenges
encountered with other CRISPR gene editing techniques such as viral and plasmid
delivery. Challenges include off-target effects, cell viability and transcription/translational
challenges.

GenCRISPR™ Cas9 v1.2 is a tag
free nuclease produced by expression in an E.
coli strain carrying a plasmid encoding the Cas9 gene from Streptococcus pyogenes with a biparticle
nucleus localization signal (BPNLS) at N-terminal and a nucleoplasmin nucleus
localization signal (nucleoplasmin NLS) at C-terminal. It has been reported
that BPNLS and nucleoplasmin NLS are able to improve the gene editing
efficiency. 

GenCRISPR™ ErCas12a Nuclease is an RNA-guided DNA endonuclease from Eubacterium rectale. It recognizes a T-rich protospacer adjacent motif (PAM) and results in a staggered DNA double-strand break (DSB). After the specific cleavage, Cas12a can also activate collateral cleavage activity towards adjacent non-specific ssDNA sequences. Hence, Cas12a nuclease is a good alternative for Cas9 in certain target DNA editing, and provides a novel strategy for DNA detection.

GenCRISPR™ LbCas12a Nuclease is an RNA-guided DNA endonuclease from Lachnospiraceae bacterium. Cas12-family enzymes exhibit two DNase activity modes; besides crRNA-guided cis-cleavage of cDNA targets, these nucleases also catalyze trans-cleavage of non-target ssDNA substrates introduced by target DNA, which has been exploited to develop sensitive technologies for nucleic acid detection.

GenCRISPR™ LbuCas13a Nuclease is an RNA-guided, RNA-targeting CRISPR enzyme, commonly referred to as LbuC2c2. This Cas13a protein can be applied to detect single RNA molecules with proven high specificity. Recently, Cas13a has been leveraged as a diagnostic nucleic acid detection tool.

GenCRISPR™ Ultra eSpCas9-2NLS-basic GMP is utilized for CRISPR gene editing applications. The Cas9 nuclease forms a stable ribonucleoprotein (RNP) complex with the guide RNA (gRNA) component. With the help of two nuclear localization signals (NLS) expressed with the Cas9 nuclease, the RNP complex enters the nucleus and cleaves target gene. When compared with a plasmid-based delivery system, the RNP delivery system has been observed to increase the on-target gene editing efficiency and decrease off-target effects.

GenCRISPR™ Ultra NLS-Cas9-basic GMP is utilized for CRISPR gene editing applications. The Cas9 nuclease forms a stable ribonucleoprotein (RNP) complex with the guide RNA (gRNA) component. With the help of nuclear localization signal (NLS) expressed with the Cas9 nuclease, the RNP complex enters the nucleus and cleaves the target gene. When compared with a plasmid-based delivery system, the RNP delivery system has been observed to increase the on-target gene editing efficiency and decrease off-target effects.

Gentian Violet, 1 Percent (w/v) Alcoholic Solution

Gentian Violet, 1 Percent (w/v) Aqueous Solution

Geraniol

Geranium Oil, Chinese Type

Geranyl Acetate

Ginger Oil, FCC

Glacial Acetic Acid, USP

Glacial Acetic Acid, USP

Globe 1.2 mL Narrow Short Stem LDPE Transfer Pipets, 65 mm, 500/Dispenser Box

Globe 1.3 mL Fine-Tip Small LDPE Transfer Pipets, 51 mm, 500/Dispenser Box

Globe 1.5 mL Pediatric LDPE Transfer Pipets, Graduated to 0.3 mL, 115 mm, 500/Dispenser Box

Globe 1.7 mL Non-Graduated LDPE Transfer Pipets, 87 mm, 500/Dispenser Box

Globe 16 x 101 mm STERILE Transport Tube with White Screw Cap, Sterile, Round Bottom, Self-Standing, Molded Graduations

Globe 3 mL Small Bulb LDPE Transfer Pipets, Graduated to 1 mL, 140 mm, 500/Dispenser Box

Globe 4 mL Narrow Short Stem Large Bulb LDPE Transfer Pipets, 85 mm, 500/Dispenser Box

Globe 4 mL Non-Graduated Blood Bank Transfer LDPE Pipets, 130 mm, 500/Dispenser Box

Globe 4.5 mL Narrow Stem Standard LDPE Transfer Pipets, 155 mm, 500/Dispenser Box