
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
3PGDH Double Nickase Plasmid (h) | sc-401405-NIC | 20 µg | $410.00 | |||
3PGDH Double Nickase Plasmid (h2) | sc-401405-NIC-2 | 20 µg | $410.00 |
PHGDH encodes 3-phosphoglycerate dehydrogenase (3PGDH), the rate-limiting enzyme that diverts the glycolytic intermediate 3-phosphoglycerate into the phosphorylated serine biosynthesis pathway. By producing 3-phosphohydroxypyruvate and supporting downstream serine and glycine availability, 3PGDH contributes to one-carbon metabolism, nucleotide synthesis, redox balance through NADPH-linked reactions, and biosynthetic flux required for proliferative states. Altered PHGDH activity has been associated with metabolic rewiring in cancer models and with neurodevelopmental disorders linked to serine deficiency, underscoring its relevance to studies of metabolism-driven cellular phenotypes. These functions make PHGDH a useful node for interrogating crosstalk between glycolysis, amino acid homeostasis, and mitochondrial/folate-cycle-dependent processes.
3PGDH Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the PHGDH locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within PHGDH. When directed to adjacent sites on opposite DNA strands, the two nickases generate offset single-strand nicks that together produce a staggered double-strand break, requiring coordinated on-target activity from both guides. The resulting DNA break is resolved by endogenous cellular repair pathways, most commonly through non-homologous end joining (NHEJ), leading to insertions or deletions that disrupt PHGDH function. By requiring dual sgRNA engagement at the target locus, the double nicking approach enhances editing specificity and provides a complementary CRISPR strategy for applications where additional control over targeting precision is desired.
To support efficient identification of edited cells, one plasmid encodes GFP for fluorescent visualization of transfected populations, while the companion plasmid carries a puromycin resistance gene for antibiotic selection. Together, these features support efficient enrichment of co-transfected populations and simplify the validation of PHGDH-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.