PPP1R3B Knockout HAP1 Cell Line

The choice depends on whether you are studying PPP1R3B (GL/PTG)'s role as a liver/muscle PP1 glycogen-targeting subunit or its established functions in glycogen metabolism and metabolic disease genetics. The Knockout line is the standard tool for asking whether PPP1R3B is required for PP1 targeting to glycogen — PPP1R3B (also called GL or PTG) is a major glycogen-targeting subunit in liver and muscle with documented metabolic disease relevance. Overexpression is useful for studying glycogen accumulation in heterologous systems. For metabolic disease research, the EDITGENE PPP1R3B Knockout in HAP1 enables study of PP1-glycogen targeting biology. Common PPP1R3B polymorphisms have been associated with fasting glucose, HbA1c, and hepatic glycogen content in GWAS studies. Rescue with wild-type or disease variant PPP1R3B enables genotype-function studies. The knockout is valuable for studying genetics of glycogen storage and Type 2 diabetes pharmacogenomics.

Primary applications: • Glycogen synthase dephosphorylation: phospho-glycogen synthase (S641, S645) analysis to characterize PPP1R3B-dependent PP1 activity. • Cellular glycogen content: PAS staining and biochemical glycogen assays in various glucose conditions. • Diabetes-associated polymorphism studies: rescue with PPP1R3B polymorphic variants (e.g., disease-associated SNPs) for pharmacogenomic studies of glycogen metabolism. • Hepatic glycogen storage: in hepatic-relevant contexts, characterization of PPP1R3B's role in liver glycogen handling. EDITGENE recommends this model for researchers investigating glycogen metabolism, type 2 diabetes pharmacogenomics, and PP1 glycogen-targeting biology.

Yes. PPP1R3B rescue experiments are well-established for glycogen metabolism research: • Construct design: use a codon-modified PPP1R3B sequence with a small C-terminal tag (FLAG, HA). Preserve carbohydrate-binding module and PP1-binding RVxF motif. • PP1-binding-deficient rescue: RVxF mutations abolish PP1 binding and serve as standard specificity controls. • Polymorphism rescue: rescue with PPP1R3B variants (T2T-classified polymorphisms affecting glucose handling) for pharmacogenomic studies. • Functional readout: rescue should restore PP1-glycogen targeting, glycogen synthase activation, and cellular glycogen accumulation. 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.