
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
OIP5 Lentiviral Activation Particles (h) | sc-409486-LAC | 200 µl | $455.00 |
OIP5 (Opa-interacting protein 5, also known as Mis18β) is a conserved cell-cycle–regulated factor that supports centromere identity and faithful chromosome segregation. It participates in centromere/kinetochore assembly by contributing to CENP-A loading and maintenance, linking OIP5 function to mitotic progression and genome stability. Dysregulated OIP5 expression has been reported across multiple tumor contexts and is often associated with proliferative signatures, highlighting its relevance to studies of chromosomal instability, aneuploidy, and cell division control. As a result, OIP5 is frequently investigated in pathways governing mitosis, DNA replication stress responses, and proliferative cell-state programs.
OIP5 Lentiviral Activation Particles (h) address this need by packaging the complete synergistic activation mediator (SAM) transcriptional activation system into transduction-ready, high-titer lentiviral particles, enabling efficient OIP5 upregulation across a broader range of human cell types.
OIP5 Lentiviral Activation Particles (h) deliver all functional components of the synergistic activation mediator (SAM) system via lentiviral transduction. The system comprises three particle preparations co-transduced into target cells: one encoding catalytically inactive dCas9 (D10A and N863A mutations) fused to the VP64 transactivation domain with a blasticidin resistance gene; one encoding the MS2-p65-HSF1 fusion protein with a hygromycin resistance gene; and one encoding a target-specific 20 nt sgRNA fused to two MS2 RNA aptamers with a puromycin resistance gene. Following lentiviral transduction and genomic integration of the expression cassettes, the SAM components are stably expressed and assemble at the target locus within the proximal promoter region upstream of the OIP5 transcriptional start site, where VP64, p65, and HSF1 act cooperatively to recruit endogenous transcriptional machinery and drive sustained upregulation of endogenous OIP5 expression. The use of nuclease-inactive dCas9 avoids the introduction of double-strand DNA breaks and preserves the native OIP5 genomic locus and regulatory architecture.
The lentiviral format offers several practical advantages: stable genomic integration supports heritable activation across cell divisions; high-titer particle preparations eliminate the need for in-house viral production; and compatibility with primary, non-dividing, and transfection-resistant cell types expands experimental accessibility. Successful transduction can be confirmed and enriched through triple antibiotic selection using puromycin, hygromycin, and blasticidin.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.