Background:

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 TSHβ 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 β 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).

Specificity:

TEF (K224) polyclonal antibody detects endogenous levels of TEF protein.

Alternative names:

Thyrotroph embryonic factor; KIAA1655

Species reactivity:

Human,Mouse,Rat

Host:

Rabbit

Ig type:

Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Immunogen:

Synthetic peptide, corresponding to amino acids 200-250 of Human TEF.

Purification & Purity:

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Molecular weight:

~ 33 kDa

Applications:

IHC

Usage:

IHC: 1:50~1:200

Storage:

Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

Precautions:

For research use only, not for use in diagnostic procedure.

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