{"product_id":"npas4-reporter-lentivirus-bhv19400216","title":"NPAS4 Reporter Lentivirus","description":"\u003cdiv class=\"bhp-desc\"\u003e\n\u003cstyle\u003e.bhp-desc{font-size:16px;color:#1a1a1a;line-height:1.7}.bhp-desc h2{font-size:18px;font-weight:700;color:#003366;margin:24px 0 10px;padding-bottom:6px;border-bottom:2px solid #003366}.bhp-desc p{margin:0 0 12px}.bhp-desc ul{margin:0 0 12px 22px}.bhp-desc li{margin:0 0 6px}\u003c\/style\u003e\n\u003ch2\u003e\u003cstrong\u003eBackground\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eNPAS4 (neuronal PAS domain protein 4) is an activity-dependent, calcium-regulated transcription factor expressed predominantly in the brain. Induced rapidly by neuronal activity and calcium influx, NPAS4 functions as an immediate-early gene that orchestrates the development and refinement of neural circuits. It is a key regulator of the balance between excitatory and inhibitory synaptic inputs, controlling downstream targets such as Bdnf, Nptx2, and Frmpd3 that shape synaptic plasticity. By tuning excitatory-inhibitory balance, NPAS4 contributes to learning, memory, and protection against hyperexcitability disorders such as epilepsy, making it a central factor in neuroscience research.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eProduct Description \u0026amp; Applications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe NPAS4 Reporter Lentivirus is a transcription-factor reporter system for robust detection of human and mouse NPAS4 activity. It contains tandem repeats of NPAS4 response elements, based on the central midline element, coupled to a minimal TATA-box promoter and an upstream enhancer that maximizes signal-to-noise to drive a fluorescent or luminescent reporter (including BFP2, d2GFP, EGFP, GFP, mCherry, RFP, firefly, Gaussia, or Renilla luciferase). A constitutively expressed selection marker (blasticidin, hygromycin, puromycin, or zeocin) supports stable polyclonal cell line generation. Stable lentiviral integration provides consistent reporter expression in dividing and post-mitotic cells, including primary neurons and cryopreserved material, with readout by microscopy, flow cytometry, or luminometry. It is used to study activity-dependent NPAS4 transcription in neuroscience research. Supplied as purified lentiviral particles.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAbout This Product\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis reporter lentivirus places a BFP2, d2GFP, EGFP, Firefly Luc, Gaussia Luc, GFP, GFP + Firefly Luc, mCherry, Renilla Luc, RFP, RFP + Firefly Luc reporter gene under the control of tandem consensus response elements specific for the NPAS4 transcription factor, coupled to a minimal TATA-box promoter and a proprietary upstream enhancer that maximizes signal-to-noise. The constitutively expressed selection marker (Blasticidin, Hygromycin, Puromycin, Zeocin) and\/or secondary reporter enables stable polyclonal cell line generation and flexible readout by fluorescence microscopy, flow cytometry, or luminometry.\u003c\/p\u003e\n\u003cp\u003eStable integration via the lentiviral backbone ensures consistent, clonally representative reporter expression in dividing and post-mitotic target cells — including primary T cells, macrophages, organoids, and cryopreserved material — eliminating the variability inherent to transient transfection. The self-inactivating LTR design and third-generation packaging minimize insertional mutagenesis risk and ensure biosafety classification at BSL-2.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"LipExoGen Biotech","offers":[{"title":"GFP \/ Puromycin \/ 5x10^6","offer_id":53251620995437,"sku":"LTV-0107-1S","price":595.0,"currency_code":"USD","in_stock":true},{"title":"RFP \/ Blasticidin \/ 5x10^6","offer_id":53362030182765,"sku":"LTV-0107-2S","price":595.0,"currency_code":"USD","in_stock":true},{"title":"Firefly Luc \/ Puromycin \/ 2x10^6","offer_id":53362030215533,"sku":"LTV-0107-3S","price":595.0,"currency_code":"USD","in_stock":true},{"title":"Firefly Luc \/ Blasticidin \/ 2x10^6","offer_id":53362030248301,"sku":"LTV-0107-4S","price":595.0,"currency_code":"USD","in_stock":true},{"title":"GFP \/ Blasticidin \/ 5x10^6","offer_id":53362030281069,"sku":"LTV-0107-5S","price":595.0,"currency_code":"USD","in_stock":true},{"title":"RFP \/ Puromycin \/ 5x10^6","offer_id":53362030313837,"sku":"LTV-0107-6S","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/NPAS4-TAG-PURO-FIG2.jpg?v=1776934213","url":"https:\/\/www.ebiohippo.com\/products\/npas4-reporter-lentivirus-bhv19400216","provider":"BioHippo","version":"1.0","type":"link"}