{"id":586,"date":"2026-05-14T15:54:59","date_gmt":"2026-05-14T14:54:59","guid":{"rendered":"http:\/\/seamlessbio.de\/?page_id=586"},"modified":"2026-06-21T12:35:59","modified_gmt":"2026-06-21T11:35:59","slug":"fbs-tet-free","status":"publish","type":"page","link":"https:\/\/seamlessbio.de\/de\/fbs-tet-free\/","title":{"rendered":"FBS Tet-Free"},"content":{"rendered":"
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\n Startseite<\/a>\n \/<\/span>\n Rinderserum aus F\u00f6ten<\/a>\n \/<\/span>\n FBS Tet-Free<\/strong>\n <\/div>\n\n
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\n SeamlessBio \u2013 F\u00f6tales Rinderserum<\/span>\n

FBS Tet-Free<\/h1>\n

\n South American-origin fetal bovine serum, processed and quality-controlled in Germany, screened to be free of tetracycline\n and tetracycline derivatives \u2014 for use with Tet-On \/ Tet-Off\n inducible expression systems.\n <\/p>\n

\n Informationen anfordern<\/a>\n Im Shop ansehen<\/a>\n <\/div>\n <\/div>\n
\n \"FBS\n
Platzhalter f\u00fcr Produktbild<\/div>\n <\/div>\n <\/div>\n\n
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\n 01<\/span>\n

Tetracycline-Free<\/h3>\n

\n Screened to confirm the absence of tetracycline and tetracycline\n derivatives that could interfere with inducible expression.\n <\/p>\n <\/div>\n\n

\n 02<\/span>\n

Tet-On \/ Tet-Off Compatible<\/h3>\n

\n Suited to cell lines and assays relying on tetracycline-inducible\n gene expression systems.\n <\/p>\n <\/div>\n\n

\n 03<\/span>\n

Batch Documentation<\/h3>\n

\n CoA, CoO and TSE\/BSE documentation available with every shipment.\n <\/p>\n <\/div>\n\n

\n 04<\/span>\n

Cold-Chain Delivery<\/h3>\n

\n Temperature-controlled shipment across the EU and UK, with no\n minimum order quantity.\n <\/p>\n <\/div>\n\n <\/div>\n\n

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Why Tet-Free serum matters for inducible expression<\/h2>\n

\n Standard fetal bovine serum can contain trace levels of\n tetracycline or related compounds, originating from veterinary use\n in source herds. For most cell culture applications this is\n irrelevant \u2014 but for experiments relying on tetracycline-inducible\n (Tet-On \/ Tet-Off) expression systems, even trace contamination can\n cause unintended, low-level activation or leakiness of the\n inducible promoter, confounding experimental results.\n <\/p>\n

\n SeamlessBio FBS Tet-Free is screened specifically to confirm the\n absence of tetracycline and its derivatives, providing a clean\n baseline for experiments where inducible system control is\n essential to data interpretation.\n <\/p>\n <\/div>\n\n

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Typical applications<\/h3>\n