Search Thermo Fisher Scientific
Search Thermo Fisher Scientific
TEF (thyrotrophic embryonic factor), also known as KIAA1655, is a 303 amino acid nuclear transcription factor that belongs to the bZIP (basic region/leucine zipper) family and PAR (proline and acidic amino acid-rich) subfamily. TEF binds DNA as either a homodimer or heterodimer, and is known to transactivate the TSH beta promoter. While broadly expressed in adults, TEF is only found in developing embryonic anterior pituitary gland. TEF accumulates according to a robust circadian rhythm and has also been found to inhibit cell growth by downregulating beta chain expression of cytokine receptors. The functional domains of TEF are highly homologous with other members of the PAR-bZIP subfamily, including albumin D box-binding protein (DABP), human hepatic leukemia factor (HLF) and chicken vitellogenin gene-binding protein (VBP).
100 µL
100 µL
Searching for an antibody we don't offer? We make custom antibodies for specific targets, species and applications.
More than 18,000 custom antibodies created so far.
Talk to a specialist nowIf an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
Learn moreGet expert recommendations for common problems or connect directly with an on staff expert for technical assistance related to applications, equipment and general product use.
Contact tech support