



Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
BLVRB Double Nickase Plasmid (h) | sc-405988-NIC | 20 µg | $410.00 | |||
BLVRB Double Nickase Plasmid (h2) | sc-405988-NIC-2 | 20 µg | $410.00 |
BLVRB (biliverdin reductase B) encodes a cytosolic NAD(P)H-dependent oxidoreductase that catalyzes the reduction of biliverdin IXβ and related tetrapyrroles to bilirubin isomers, contributing to heme catabolism and cellular redox balance. By regulating intracellular pools of biliverdin/bilirubin and associated reactive oxygen species buffering, BLVRB connects heme turnover to oxidative stress responses and metabolic homeostasis. The enzyme is expressed in multiple tissues and is often studied in contexts where iron/heme handling intersects with inflammation, mitochondrial function, and erythroid biology. Altered tetrapyrrole metabolism and redox state are frequently investigated in liver and hematologic disorders, making BLVRB a useful node for mechanistic studies of stress adaptation pathways.
BLVRB Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the BLVRB locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within BLVRB. 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 BLVRB 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 BLVRB-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.