Lentivirus Packaging

◆ Description

• Lentiviral transfer plasmid encoding your insert of interest: The transgene sequence is flanked by long terminal repeat (LTR) sequences, which facilitates integration of the transfer plasmid sequences into the host genome. Typically, it is the sequences between and including the LTRs that is integrated into the host genome upon viral transduction. For safety reasons, transfer plasmids are all replication incompetent and may contain an additional deletion in the 3'LTR, rendering the virus “self-inactivating” (SIN) after integration.
• Packaging plasmids: One encoding Rev and one encoding Gag and Pol.
• Envelop plasmid.

Self-inactivating VSV-G pseudotyped lentivirus

◆ Lentivirus Production

Transfect 293T packaging cells with transfer plasmid, envelope plasmid and packaging plasmids. Remove media, replace with fresh media. After 48~72 hours, harvest virus. Harvested virus can be used in vitro study. After further purification, ultra-purified lentivirus can be used in vivo study.

◆ Quality Control for Virus

Lentiviral titer test will be conducted to make sure only qualified lentivirus entering into your laboratory. For luciferase reporter gene labeled lentivirus, we will perform viral transduction assay and further confirm the titer by qPCR.

◆ Service

Cyagen can also provide custom shRNA and gRNA lentivirus packaging services.

◆ Targeted Gene Editing Gene Knockout Lentiviral Vector Construction

The Targeted Gene Editing system can be used for knocking out gene expression in vivo or in vitro. By using lentiviral-based Targeted Gene Editing constructs, expressed gRNA and Targeted Gene Editing can be used in dividing or non-dividing cells or whole model organisms.

Two vector Targeted Gene Editing system: Lentiviral gRNA vector and Lentiviral Targeted Gene Editing vector.

1. Lentiviral-based gRNA Vector

Lentiviral gRNA vector consists of lentiviral genome sequence from 5’ LTR to 3’ LTR and bacterial plasmid sequence which contains an Ampicillin selection cassette and a pUC origin of replication.

2. Lentiviral-based Targeted Gene Editing Vector

CBh promoter drives co-expression of spTargeted Gene Editing and resistance gene.

For two vector Targeted Gene Editing system, two different drug selection cassettes will be used to select gRNA and Targeted Gene Editing co-expressed clones.

◆ Quality Control for Vector

We will perform sequencing assay as well as restriction enzyme analysis for every project to make sure only qualified vectors enter your laboratory.

◆ Inquiries and Quote Requests

Request a quote now. Alternatively, you can always email service-apac@cyagen.com to inquire about our services or obtain a quote for your project.