
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
HSF1 Double Nickase Plasmid (m) | sc-420971-NIC | 20 µg | $410.00 | |||
HSF1 Double Nickase Plasmid (m2) | sc-420971-NIC-2 | 20 µg | $410.00 |
Heat shock factor 1 (HSF1), encoded by the mouse Hsf1 gene, is a master transcriptional regulator of the heat shock response that maintains proteostasis during thermal and proteotoxic stress. Upon activation, HSF1 trimerizes and binds heat shock elements to induce molecular chaperones such as HSP70 and HSP90, coordinating protein folding, quality control, and recovery from cellular damage. HSF1 integrates with pathways controlling protein homeostasis, autophagy, apoptosis, and metabolic adaptation, shaping cell survival under stress. Dysregulated HSF1 activity has been linked to processes relevant to neurodegeneration, aging, inflammation, and cancer-associated stress programs, making it a key node for mechanistic studies in mouse models.
HSF1 Double Nickase Plasmid (m) consists of a matched pair of plasmids engineered for high-specificity editing of the Hsf1 locus in mouse cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within Hsf1. 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 Hsf1 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 Hsf1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.