
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
Calponin 1 Lentiviral Activation Particles (m) | sc-419719-LAC | 200 µl | $455.00 |
Cnn1 encodes calponin 1, an actin-binding protein enriched in differentiated smooth muscle that modulates actomyosin contractility and cytoskeletal organization. Calponin 1 contributes to regulation of stress fiber assembly, focal adhesion dynamics, and Ca2+-dependent signaling through its interactions with actin filaments and calmodulin, influencing smooth muscle tone and cellular motility. Altered CNN1 expression is frequently used as a molecular indicator of smooth muscle cell phenotypic switching, a process linked to vascular remodeling and fibrosis-associated changes in contractile gene programs. In mouse systems, Cnn1 serves as a functional readout for pathways governing myofibroblast-like differentiation and cytoskeletal reprogramming during tissue injury responses.
Calponin 1 Lentiviral Activation Particles (m) address this need by packaging the complete synergistic activation mediator (SAM) transcriptional activation system into transduction-ready, high-titer lentiviral particles, enabling efficient Cnn1 upregulation across a broader range of human cell types.
Calponin 1 Lentiviral Activation Particles (m) 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 Cnn1 transcriptional start site, where VP64, p65, and HSF1 act cooperatively to recruit endogenous transcriptional machinery and drive sustained upregulation of endogenous Calponin 1 expression. The use of nuclease-inactive dCas9 avoids the introduction of double-strand DNA breaks and preserves the native Cnn1 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.