
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
CAF-1 p150 Double Nickase Plasmid (h) | sc-402472-NIC | 20 µg | $410.00 | |||
CAF-1 p150 Double Nickase Plasmid (h2) | sc-402472-NIC-2 | 20 µg | $410.00 |
CHAF1A encodes the p150 subunit of chromatin assembly factor 1 (CAF-1), a histone chaperone that deposits H3–H4 onto newly synthesized DNA during S phase and following DNA damage. CAF-1 p150 coordinates replication-coupled nucleosome assembly, epigenetic inheritance, and restoration of chromatin structure after repair, linking chromatin dynamics to genome stability. Through interactions with PCNA and replication/repair machinery, CHAF1A influences DNA replication, homologous recombination, and checkpoint signaling pathways. Dysregulation of CAF-1 activity is associated with replication stress, altered transcriptional programs, and genomic instability phenotypes observed in cancer biology and other chromatin-related disease models.
CAF-1 p150 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the CHAF1A locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within CHAF1A. 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 CHAF1A 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 CHAF1A-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.