PRKAA1 Knockout HAP1 Cell Line

The choice depends on whether you are studying PRKAA1 (AMPKα1)'s role as a catalytic subunit of AMP-activated protein kinase or its specific contributions distinct from AMPKα2 (PRKAA2). The Knockout line is the standard tool for asking whether AMPKα1 is required for AMPK kinase activity — α1 and α2 are the catalytic subunits, with α1 being broadly expressed and α2 enriched in muscle and liver. Overexpression is useful for studying α1-specific AMPK functions or for testing constitutively active T172D AMPK. For AMPK signaling research, the EDITGENE PRKAA1 Knockout in HAP1 is a mechanistic platform — HAP1 expresses primarily AMPKα1, making single PRKAA1 KO substantially disrupt AMPK activity in this background. Rescue with wild-type, kinase-dead (K45R), or constitutively active (T172D phospho-mimetic) AMPKα1 enables comprehensive structure-function studies. The knockout is a critical specificity tool for AMPK direct activators (A-769662, MK-8722, PF-06409577, metformin mechanism studies) and indirect activators (metformin, AICAR).

Primary applications: • AMPK activity assays: phospho-AMPKα (T172) Western blot following energy stress; phospho-substrate analysis (phospho-ACC S79, phospho-RaPPCC1A S196, phospho-Raptor S792) characterizes AMPK kinase activity. • Energy stress responses: response to glucose deprivation, mitochondrial uncoupling, AICAR, and metformin in the AMPKα1-null background. • mTORC1 regulation: phospho-S6K1 and phospho-4E-BP1 analysis given AMPK's role in inhibiting mTORC1 under low energy. • AMPK activator specificity: critical genetic control for A-769662, MK-8722, PF-06409577, metformin, and AICAR mechanism studies. EDITGENE recommends this model for researchers investigating AMPK signaling, cellular energy homeostasis, and AMPK-targeted metabolic disease therapeutic development.

Yes. AMPKα1 rescue experiments are well-established for AMPK pathway research: • Construct design: use a codon-modified PRKAA1 sequence with a small C-terminal tag (FLAG, HA). AMPKα1 has N-terminal kinase domain with T172 activation loop site, autoinhibitory domain, and C-terminal β-binding domain — preserve all elements. • Kinase-dead rescue: the K45R mutation abolishes catalytic activity and is the standard specificity control. • Constitutively active rescue: T172D phospho-mimetic mutation enables studies of activation-locked AMPKα1. • Functional readout: rescue should restore AMPK substrate phosphorylation (phospho-ACC S79) and downstream metabolic regulation under energy stress. HAP1-specific considerations: • Diploidization: HAP1 cells gradually diploidize during extended culture — confirm ploidy by flow cytometry at the time of phenotypic assay. • Integration site sensitivity: position effects on transgene expression are more pronounced in near-haploid backgrounds; generating multiple independent rescue clones is strongly recommended. • Transduction efficiency: HAP1 transduces with lentivirus at moderate efficiency — increase MOI compared to standard immortalized lines.