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Pcs2 cas9 msa

Manufactured by Addgene

The PCS2+Cas9-mSA is a gene editing tool that facilitates the delivery of Cas9 protein and single guide RNA (sgRNA) into cells. It enables efficient CRISPR-Cas9 mediated genome editing.

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2 protocols using pcs2 cas9 msa

1

Cas9 RNA In Vitro Transcription

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Cas9 or Cas9-streptavidin plasmid (this protocol is intended for plasmids containing a T7 promoter)

Cas9: pT7-Cas9 (available commercially from OriGene Cat. No. GE100014)

Cas9-streptavidin: PCS2+Cas9-mSA (available from Addgene Plasmid No. 103882)

NOTE: The SP6 promoter in this plasmid was replaced with a T7 promoter using standard cloning techniques.

NOTE: Protocol can be adapted to use a plasmid containing an SP6 promoter.

Restriction enzyme appropriate to linearize Cas9 plasmid (see note 1c)

Phenol/Chloroform

3 M NaOAc, pH 5.3

100% ethanol

mMessage mMachine T7 Ultra kit (Thermo Fisher Cat. No. AM1345)

NOTE: Use SP6 in vitro transcription kit if using a plasmid containing an SP6 promoter.

RNeasy Mini Kit (Qiagen Cat. No. 74104)

Dry ice

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2

CRISPR Cas9 mRNA and sgRNA Synthesis

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Plasmid pCS2+Cas9-mSA (Addgene plasmid #103882), a kind gift from Janet Rossant [14 (link)] was linearized with Not I and used as a template for in vitro transcription with the mMESSAGE mMACHINE Sp6 Transcription kit (ThermoFisher) according to the manufacturer’s instructions. RNA was purified using the MEGAClear Transcription Clean-Up Kit (ThermoFisher) and further ethanol precipitated. sgRNA templates were prepared as described in Bassett et al. [51 (link)], with primers LA137 and LA138 (sgRNA-64), LA137 and LA2676 (sgRNA-145), LA137 and LA139 (sgRNA-190), LA137 and LA140 (sgRNA-234). sgRNAs were transcribed using the MEGAScript T7 Transcription Kit (ThermoFisher) and purified using the MEGAClear Transcription Clean-Up Kit (ThermoFisher).
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