GNB1 & GNB2 Knockout HEK293 Cell Line

The choice depends on whether you are studying combined Gβ1/Gβ2 function or distinguishing Gβ1/Gβ2-dependent from Gβ3/Gβ4/Gβ5-dependent G-protein signaling. The Double Knockout line is uniquely valuable for asking whether Gβ1/Gβ2 are required for these processes — GNB1 (Gβ1) and GNB2 (Gβ2) are the two most highly and broadly expressed Gβ subunits, sharing >90% sequence identity and substantial functional overlap as part of Gβγ dimers that signal through PI3K, PLCβ, GIRK channels, and adenylyl cyclase. Combined GNB1+GNB2 loss eliminates the dominant Gβ pool. Single-isoform rescue (GNB1 alone or GNB2 alone) enables paralog-specific functional dissection. For G-protein signaling research, the EDITGENE GNB1 & GNB2 Double Knockout in HEK293 is the gold-standard genetic tool — combined loss is required to eliminate Gβ1/Gβ2-dependent signaling. GNB3, GNB4, GNB5 paralog expression analysis aids interpretation. Single-isoform rescue is the gold-standard experimental design for paralog dissection. The double knockout is valuable for studying somatic GNB1 mutations in cancer (K57E activating mutations in myeloid malignancies) and emerging Gβγ-targeted therapeutics.

Primary applications: • Complete Gβ1/Gβ2 elimination: GPCR-induced Gβγ-dependent signaling (PLCβ activation, PI3K activation, GIRK channel) — double KO eliminates Gβ1/Gβ2-dependent signaling. • Single-isoform rescue: re-introduction of GNB1 alone or GNB2 alone enables paralog-specific functional dissection — gold-standard experimental design. • GNB1 mutation modeling: rescue with K57E and other GNB1 oncogenic mutations for cancer genotype-function studies. • Gβ paralog studies: GNB3, GNB4, GNB5 expression analysis to interpret the residual Gβ pool. EDITGENE recommends this double knockout as the gold-standard genetic tool for Gβ1/Gβ2-targeted G-protein signaling research.

Yes, and rescue experiments are uniquely powerful in this double knockout: • Single-isoform rescue: re-introduction of GNB1 alone or GNB2 alone enables paralog-specific functional dissection — gold-standard experimental design. • Construct design: use codon-modified GNB1 or GNB2 sequences with small C-terminal tags (FLAG, HA). Gβ subunits have seven-bladed WD40 propeller architecture — preserve domain integrity. • Gγ partnership: Gβ subunits require Gγ for stability — rescue interpretation considers Gγ availability. • GNB1 oncogenic mutation rescue: K57E and other GNB1 cancer mutations enable disease genotype-function studies. • Functional readout: rescue should restore Gβγ-dependent signaling (PLCβ, PI3K, GIRK channels). HEK293 transduces efficiently with lentivirus and supports systematic isoform-specific rescue experiments.