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The choice depends on whether you are studying FUS (fused in sarcoma)'s role as a multifunctional RNA-binding protein or modeling FUS-related amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). The Knockout line is the standard tool for asking whether FUS is required for these processes — FUS is a nuclear RNA/DNA-binding protein that participates in RNA processing, DNA damage response, and biomolecular condensate formation (through its low-complexity prion-like domain); FUS is one of the canonical ALS/FTD genes with mutations causing cytoplasmic FUS aggregation and motor neuron degeneration. Overexpression of mutant FUS is useful for studying gain-of-function ALS mutations. For ALS/FTD research, the EDITGENE FUS Knockout in HEK293 is highly informative — FUS loss-of-function phenotypes contribute to disease alongside aggregate-mediated gain-of-function mechanisms. Rescue with wild-type or ALS-associated mutant (R521C, R521H, P525L — these are NLS mutations that cause cytoplasmic FUS aggregation) FUS enables disease genotype-function studies. The knockout is valuable for studying RNA-binding protein biology, biomolecular condensate formation, stress granule dynamics, and emerging FUS-targeted therapeutic approaches in ALS/FTD.

Yes. FUS rescue experiments are uniquely powerful for ALS/FTD research: • Construct design: use a codon-modified FUS sequence with a small C-terminal tag (FLAG, HA). FUS has N-terminal QGSY-rich prion-like domain (low-complexity), RGG1, RRM (RNA-binding), zinc finger, RGG2/3 (RNA-binding), and C-terminal NLS — preserve all elements. • ALS NLS mutation rescue: R521C, R521H, P525L NLS mutations introduce cytoplasmic FUS aggregation, modeling FUS-ALS gain-of-function — invaluable for disease mechanism studies. • RNA-binding-deficient rescue: RRM mutations abolish RNA binding without affecting prion-like domain function. • Prion-like domain mutant rescue: ALS-associated G156E and other prion-like domain mutations affect phase separation and condensate formation. • Functional readout: rescue should restore RNA processing functions; ALS mutation rescue should reproduce cytoplasmic aggregation phenotypes. HEK293 transduces efficiently with lentivirus and supports stable rescue line generation for systematic ALS mutation analysis.

The choice depends on whether you are studying GPR65 (TDAG8)'s role as a proton-sensing GPCR or its functions in immune cell biology and inflammatory bowel disease. The Knockout line is the standard tool for asking whether GPR65 is required for these processes — GPR65 is one of four proton-sensing GPCRs (with GPR4, GPR68/OGR1, GPR132/G2A) that respond to extracellular acidification through histidine residue protonation, signaling through Gs (cAMP) and other G proteins. Overexpression is useful for studying GPR65 in heterologous expression contexts. For acid-sensing GPCR research, the EDITGENE GPR65 Knockout in HEK293 enables study of proton-sensing biology — GPR65 variants are associated with inflammatory bowel disease susceptibility (GWAS). Rescue with wild-type or histidine-mutant GPR65 enables structure-function studies of pH sensing. The knockout is valuable for studying tumor microenvironment acidosis sensing and emerging proton-sensing GPCR-targeted therapeutics.

Yes. GPR65 rescue experiments require attention to proton-sensing histidine residues: • Construct design: use a codon-modified GPR65 sequence with a small intracellular C-terminal tag (FLAG, HA). GPR65 is a seven-transmembrane GPCR with key extracellular histidine residues serving as pH sensors — preserve all elements. • Histidine-mutant rescue: extracellular histidine residue mutations (H6Q, H8Q) abolish pH-sensing and serve as the standard specificity control. • IBD risk variant rescue: I231L and other IBD-associated GPR65 variants enable disease genotype-function studies. • Functional readout: rescue should restore acidification-induced cAMP elevation and downstream Gs signaling. HEK293 transduces efficiently with lentivirus and supports stable rescue line generation.

The choice depends on whether you are studying HELLS (LSH, lymphoid-specific helicase)'s role as a chromatin remodeler supporting DNA methylation or modeling ICF syndrome 4 (immunodeficiency-centromeric instability-facial anomalies). The Knockout line is the standard tool for asking whether HELLS is required for these processes — HELLS is a SNF2-family ATP-dependent chromatin remodeler that cooperates with DNMT3A/3B to establish DNA methylation at pericentric heterochromatin, transposable elements, and other target loci. HELLS loss results in genome-wide DNA hypomethylation. Overexpression is useful for studying HELLS in heterologous expression contexts. For chromatin biology research, the EDITGENE HELLS Knockout in HEK293 is highly informative — HELLS biallelic loss-of-function mutations cause ICF syndrome 4 (immunodeficiency-centromeric instability-facial anomalies, autosomal recessive) characterized by pericentric heterochromatin demethylation. Rescue with wild-type or ATPase-deficient HELLS is the standard specificity control. The knockout is valuable for studying DNA methylation establishment, pericentric heterochromatin biology, and emerging HELLS-related cancer epigenetics — HELLS is overexpressed in multiple cancers and may be a therapeutic target.

Yes. HELLS rescue experiments require attention to SNF2 helicase architecture: • Construct design: use a codon-modified HELLS sequence with a small C-terminal tag (FLAG, HA). HELLS has N-terminal coiled-coil, central SNF2 ATPase domain (helicase superfamily II), and C-terminal regulatory region — preserve all elements. • ATPase-deficient rescue: K254R or K237R mutations in the Walker A motif abolish ATP hydrolysis and serve as the standard specificity control. • ICF mutation rescue: patient-derived HELLS mutations enable disease genotype-function studies of ICF syndrome 4. • Functional readout: rescue should restore DNA methylation at pericentric heterochromatin and DNMT3B cooperation. HEK293 transduces efficiently with lentivirus and supports stable rescue line generation.

The choice depends on whether you are studying GCH1's role as the rate-limiting enzyme of tetrahydrobiopterin (BH4) biosynthesis in a high-transfection-efficiency mechanistic platform. The Knockout line is the standard tool for asking whether GCH1 is required for de novo BH4 biosynthesis — GCH1 catalyzes the first and rate-limiting step (GTP → 7,8-dihydroneopterin triphosphate), generating BH4 as an essential cofactor for aromatic amino acid hydroxylases (PAH, TH, TPH), nitric oxide synthases (NOS), and alkylglycerol monooxygenase. Overexpression is useful for studying GCH1 gain-of-function effects. For systematic BH4 biology, the EDITGENE GCH1 Knockout in HEK293 is a workhorse mechanistic platform — HEK293 supports systematic structure-function studies. This product complements the parallel GCH1 Knockout in HaCaT (also available); HEK293 is preferred for biochemistry, HaCaT for skin/keratinocyte context. GCH1 dominant-negative mutations cause dopa-responsive dystonia (Segawa syndrome); GCH1 polymorphisms are associated with chronic pain susceptibility (one of the strongest pain GWAS loci). Rescue with wild-type or catalytically-dead GCH1 enables structure-function studies. The knockout is valuable for studying BH4-dependent enzymes and BH4-related therapeutics (sapropterin/Kuvan for PKU).

Yes. GCH1 rescue experiments are well-established for BH4 research: • Construct design: use a codon-modified GCH1 sequence with a small C-terminal tag (FLAG, HA). GCH1 functions as a homodecamer — preserve oligomerization regions. • Catalytically-dead rescue: active site residue mutations abolish GTP cyclohydrolase activity. • Dopa-responsive dystonia rescue: patient-derived dominant-negative GCH1 mutations for disease genotype-function studies. • Functional readout: rescue should restore cellular BH4 levels measured by HPLC. HEK293 transduces efficiently with lentivirus and supports stable rescue line generation.

The choice depends on whether you are studying FADS2 (Δ6-desaturase, fatty acid desaturase 2)'s role as a critical enzyme in long-chain polyunsaturated fatty acid (LC-PUFA) biosynthesis or modeling FADS2 polymorphism effects on PUFA metabolism. The Knockout line is the standard tool for asking whether FADS2 is required for these processes — FADS2 catalyzes the Δ6-desaturation step in PUFA biosynthesis (ALA → SDA in ω-3 pathway; LA → GLA in ω-6 pathway), generating precursors for downstream elongation and Δ5-desaturation (FADS1) to produce EPA, DHA (ω-3) and arachidonic acid (ω-6). Overexpression is useful for studying FADS2 gain-of-function effects. For lipid metabolism research, the EDITGENE FADS2 Knockout in HEK293 enables study of LC-PUFA biosynthesis. FADS2 polymorphisms are associated with serum PUFA levels and ethnic variation in PUFA capacity (Inuit, South Asians have FADS2 variants affecting PUFA metabolism). Rescue with wild-type or catalytically-dead FADS2 enables structure-function studies. The knockout is valuable for studying ω-3/ω-6 PUFA metabolism, dietary PUFA requirements in FADS2-deficient contexts (DHA dietary necessity), and FADS2 polymorphism pharmacogenomic studies.

Yes. FADS2 rescue experiments require attention to ER membrane targeting: • Construct design: use a codon-modified FADS2 sequence with a small C-terminal tag (FLAG, HA). FADS2 has N-terminal cytochrome b5-like domain, central diiron-binding catalytic region, and ER membrane-anchoring hydrophobic regions — preserve all elements. • ER localization validation: confirm endoplasmic reticulum localization before functional assays. • Catalytically-dead rescue: histidine cluster mutations affecting Fe coordination abolish desaturase activity. • Polymorphism rescue: FADS2 polymorphic variants (e.g., rs174575) enable pharmacogenomic studies. • Functional readout: rescue should restore Δ6-desaturation activity measured by ¹³C-ALA conversion to SDA or LA conversion to GLA. HEK293 transduces efficiently with lentivirus and supports stable rescue line generation.

The choice depends on whether you are studying DHX30's role as a mitochondrial DEAH-box RNA helicase or modeling DHX30-associated neurodevelopmental disorder. The Knockout line is the standard tool for asking whether DHX30 is required for these processes — DHX30 is a DEAH-box helicase principally localized to mitochondrial RNA granules where it participates in mitoribosome assembly and mitochondrial RNA processing; DHX30 also has roles in cytoplasmic stress granule formation and translation regulation. Overexpression is useful for studying DHX30 in heterologous expression contexts. For mitochondrial RNA biology research, the EDITGENE DHX30 Knockout in HEK293 enables study of DHX30 biology. DHX30 heterozygous missense mutations in the helicase motifs cause autosomal dominant intellectual disability with severe motor impairment and absent speech (NEDMIAS, DHX30-related neurodevelopmental disorder). Rescue with wild-type or patient-derived DHX30 mutants enables disease genotype-function studies. The knockout is valuable for studying mitochondrial RNA processing and emerging DHX30-related neurodevelopmental disorder mechanisms.

Yes. DHX30 rescue experiments require attention to mitochondrial targeting and helicase architecture: • Construct design: use a codon-modified DHX30 sequence with a small C-terminal tag (FLAG, HA). DHX30 has N-terminal mitochondrial targeting sequence and DEAH-box helicase core — preserve mitochondrial localization. • Mitochondrial localization validation: confirm mitochondrial localization by appropriate compartment markers. • NEDMIAS mutation rescue: patient-derived missense mutations in helicase motifs enable disease genotype-function studies. • ATPase-dead rescue: Walker A motif mutations abolish ATPase activity. • Functional readout: rescue should restore mitoribosome assembly and mitochondrial RNA processing. HEK293 transduces efficiently with lentivirus and supports stable rescue line generation.

The choice depends on whether you are studying ESYT3 (extended synaptotagmin 3)'s role as an ER-plasma membrane contact site protein or its functions in non-vesicular lipid transfer between organelles. The Knockout line is the standard tool for asking whether ESYT3 is required for these processes — extended synaptotagmins (ESYT1, ESYT2, ESYT3) are tethering and lipid transfer proteins at ER-PM contact sites, containing N-terminal hairpin (ER anchor), SMP (synaptotagmin-like mitochondrial-lipid-binding protein) domain for glycerophospholipid transfer, and C-terminal C2 domains (PM binding). Overexpression is useful for studying ESYT3 gain-of-function effects. Important consideration: ESYT family members (ESYT1, ESYT2, ESYT3) share substantial functional overlap — single ESYT3 knockout may show modest phenotypes if ESYT1/2 compensate. This product complements the parallel ESYT2 Knockout and the ESYT2 & ESYT3 Double Knockout in HEK293 (both also available) for systematic ESYT family functional dissection. Rescue with wild-type or lipid-transfer-deficient ESYT3 is the standard specificity control.

Yes. ESYT3 rescue experiments require attention to ER-PM contact site architecture: • Construct design: use a codon-modified ESYT3 sequence with a small C-terminal tag (FLAG, HA). ESYT3 has N-terminal hairpin (ER membrane anchor), SMP domain (lipid transfer), and three C2 domains (PM binding) — preserve all elements. • SMP-domain-mutant rescue: SMP domain mutations disrupt lipid transfer activity without affecting tethering. • C2-domain-mutant rescue: C2 domain mutations disrupt PM PI(4,5)P2 binding and ER-PM tethering. • Functional readout: rescue should restore ER-PM contact site formation and glycerophospholipid transfer. HEK293 transduces efficiently with lentivirus and supports stable rescue line generation.

The choice depends on whether you are studying ESYT2's role as an ER-PM contact site tether or its functions in non-vesicular lipid transfer and calcium-regulated signaling. The Knockout line is the standard tool for asking whether ESYT2 is required for these processes — ESYT2 has been the most-characterized ESYT family member, mediating phospholipid transfer at ER-PM junctions and showing calcium-regulated tethering. Overexpression is useful for studying ESYT2 gain-of-function effects. Important consideration: ESYT1, ESYT3 paralog expression analysis aids interpretation given functional overlap. This product complements the parallel ESYT3 Knockout and the ESYT2 & ESYT3 Double Knockout in HEK293 (both also available) for paralog-specific functional dissection. Rescue with wild-type, SMP-domain-mutant (lipid-transfer-deficient), or C2-domain-mutant (PM-binding-deficient) ESYT2 enables structure-function studies.