{"title":"氨基酸传感器","description":"用于测量活细胞中氨基酸动态的传感器","products":[{"product_id":"bcaa-sensor","title":"支链氨基酸 BCAA 传感器","description":"表达 BCAA 传感器的预制质粒，对\u003cspan class=\"fontstyle0\" data-mce-fragment=\"1\"\u003e支链\u003cbr data-mce-fragment=\"1\"\u003e氨基酸\u003c\/span\u003e。当亮氨酸饱和时， \u003cspan class=\"fontstyle0\" data-mce-fragment=\"1\"\u003eBCAA 传感器\u003c\/span\u003e\u003cspan class=\"fontstyle0\" data-mce-fragment=\"1\"\u003e在 420 和 485 nm 激发下荧光\u003c\/span\u003e\u003cspan class=\"fontstyle0\" data-mce-fragment=\"1\"\u003e分别减少 0.8 倍和\u003c\/span\u003e增加 2.5 倍\u003cspan class=\"fontstyle0\" data-mce-fragment=\"1\"\u003e。\u003c\/span\u003e \u003cbr data-mce-fragment=\"1\"\u003eBCAA 传感器对其他两种支链氨基酸（即异亮氨酸和缬氨酸）也具有高选择性\u003cspan class=\"fontstyle0\" data-mce-fragment=\"1\"\u003e。该传感器的反向方向变化导致\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan class=\"fontstyle0\" data-mce-fragment=\"1\"\u003e荧光比率变化3.0倍\u003c\/span\u003e\u003cspan class=\"fontstyle0\" data-mce-fragment=\"1\"\u003e。\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e","brand":"Provoson","offers":[{"title":"胞浆 \/ 质粒","offer_id":40054626615399,"sku":null,"price":700.0,"currency_code":"USD","in_stock":true},{"title":"胞浆 \/ 克隆至自定义向量","offer_id":40054626648167,"sku":null,"price":800.0,"currency_code":"USD","in_stock":true}]},{"product_id":"fhisj","title":"FHisJ 为组氨酸","description":"\u003cp\u003e预制质粒表达\u003cspan data-mce-fragment=\"1\"\u003eFHisJ，这是一系列比率式、高响应度、\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e基于单一荧光蛋白的宽动态范围组氨酸传感器。FHisJ 已被证实可用于测量哺乳动物\u003cspan class=\"fontstyle0\" data-mce-fragment=\"1\"\u003e细胞中组氨酸的亚细胞定位和运输。\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Provoson","offers":[{"title":"胞浆 \/ 质粒","offer_id":40054627074151,"sku":null,"price":700.0,"currency_code":"USD","in_stock":true},{"title":"胞浆 \/ 克隆至自定义向量","offer_id":40054627106919,"sku":null,"price":800.0,"currency_code":"USD","in_stock":true},{"title":"线粒体 \/ 质粒","offer_id":40054627139687,"sku":null,"price":700.0,"currency_code":"USD","in_stock":true},{"title":"线粒体 \/ 克隆至自定义向量","offer_id":40054627172455,"sku":null,"price":800.0,"currency_code":"USD","in_stock":true},{"title":"核 \/ 质粒","offer_id":40054627696743,"sku":"","price":700.0,"currency_code":"USD","in_stock":true},{"title":"核 \/ 克隆至自定义向量","offer_id":40054627729511,"sku":"","price":800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0265\/9994\/8391\/products\/FHisJ.png?v=1679223855"},{"product_id":"arginine-sensor","title":"STAR 精氨酸传感器","description":"\u003cp\u003e表达 STAR 传感器的预制质粒，该传感器对精氨酸具有高响应性和高特异性。STAR \u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold;\"\u003e在 420 nm 和 495 nm 附近有两个激发峰，在 514 nm 附近有一个发射峰。精氨酸结合后，STAR 在 485 nm 和 420 nm 处分别激发时荧光增加 11.4 倍，减少 1.3 倍，导致\u003c\/span\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;\"\u003e\u003cspan style=\"mso-bidi-font-weight: bold;\"\u003e比率荧光变化 ~ 1,640%。荧光滴定研究表明，STAR 的表观\u003ci style=\"mso-bidi-font-style: normal;\"\u003eK\u003c\/i\u003e \u003csub\u003ed\u003c\/sub\u003e\u003c\/span\u003e为 ~180 μM \u003cspan style=\"mso-bidi-font-weight: bold;\"\u003e，基本不受 20 °C 和 40 °C 之间温度波动的影响。STAR 对 L-精氨酸具有高选择性，但对 D-精氨酸没有选择性，对其他 19 种氨基酸、核苷酸、糖酵解或三羧酸循环代谢物、鸟氨酸\/瓜氨酸中的任何一种或存在这些代谢物时，也没有明显的荧光变化。 STAR 传感器已被证明可用于阐明细胞、小鼠和临床样本中的精氨酸代谢。\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;\"\u003e\u003cspan style=\"mso-bidi-font-weight: bold;\"\u003e我们还提供 STAR-H 传感器，它与精氨酸的结合亲和力更高\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold;\"\u003e，表观\u003ci style=\"mso-bidi-font-style: normal;\"\u003eK\u003c\/i\u003e \u003csub\u003ed\u003c\/sub\u003e值约为 2.0 μM。STAR-H 传感器已成功用于测定血清精氨酸水平，这是区分白癜风进展和严重程度的潜在指标。\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-bidi-font-weight: bold;\"\u003e为了精确测量 NADH 水平，使用\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 宋体; color: black; mso-font-kerning: 12.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;\"\u003eSTAR-C\u003c\/span\u003e来校正活细胞研究或体外研究中潜在的 pH 效应\u003cspan style=\"color: #ff2a00;\"\u003e\u003cb\u003e非常重要且必要\u003c\/b\u003e\u003c\/span\u003e。我们建议客户在订购 STAR 传感器时同时购买\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 宋体; color: black; mso-font-kerning: 12.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;\"\u003eSTAR-C\u003c\/span\u003e 。\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-bidi-font-weight: bold;\"\u003e促销：对于 STAR 传感器质粒，客户可享受第二件质粒 50% 折扣的促销政策。结账时有效。\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;\"\u003e\u003cspan style=\"mso-bidi-font-weight: bold;\"\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold;\"\u003e参考：\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;\"\u003e\u003cspan style=\"mso-bidi-font-weight: bold;\"\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold;\"\u003eLi R 等人。\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e \u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-bidi-font-weight: bold;\"\u003e阐明精氨酸代谢揭示其在生理学和病理学中的功能多样性。细胞代谢 2024。\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;\"\u003e\u003cspan style=\"mso-bidi-font-weight: bold;\"\u003e\u003cspan style=\"font-size: 11.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 等线; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold;\"\u003ehttps:\/\/www.cell.com\/cell-metabolism\/abstract\/S1550-4131(24)00375-9\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Provoson","offers":[{"title":"STAR \/ 胞浆 \/ 质粒","offer_id":41081221808231,"sku":null,"price":700.0,"currency_code":"USD","in_stock":true},{"title":"STAR \/ 胞浆 \/ 克隆至自定义向量","offer_id":41081221840999,"sku":null,"price":800.0,"currency_code":"USD","in_stock":true},{"title":"STAR-H \/ 胞浆 \/ 质粒","offer_id":41081228099687,"sku":null,"price":700.0,"currency_code":"USD","in_stock":true},{"title":"STAR-H \/ 胞浆 \/ 克隆至自定义向量","offer_id":41081228132455,"sku":null,"price":700.0,"currency_code":"USD","in_stock":true},{"title":"STAR-C \/ 胞浆 \/ 质粒","offer_id":41081230786663,"sku":null,"price":700.0,"currency_code":"USD","in_stock":true},{"title":"STAR-C \/ 胞浆 \/ 克隆至自定义向量","offer_id":41081230819431,"sku":null,"price":700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0265\/9994\/8391\/files\/6.png?v=1731415939"}],"url":"https:\/\/fr-biotechnology.com\/zh\/collections\/amino-acid-sensors\/amino-acid.oembed","provider":"FR Biotechnology","version":"1.0","type":"link"}