IHC testing of FFPE human thyroid tissue with TTF1 antibody (clone HBNK2-1)

Mouse anti-Human/Mouse/Rat TTF1 Antibody

Mouse anti-Human/Mouse/Rat TTF1 Antibody


Antigen Information

Accession Number:
  • P43699
Gene ID:
  • 7080
Gene Symbols:
  • NKX2-1
  • NKX2A
  • TITF1
  • TTF1
Protein Name & Synonyms:
Homeobox protein Nkx-2.1 (Homeobox protein NK-2 homolog A) (Thyroid nuclear factor 1) (Thyroid transcription factor 1) (TTF-1) (Thyroid-specific enhancer-binding protein) (T/EBP)
Target Species:
  • Human
  • Mouse
  • Rat

Antibody Specifications

Flow Cytometry: 0.5-1ug/million cells in 0.1ml
Immunofluorescence: 0.5-1ug/ml
Immunohistochemistry (FFPE): 0.5-1ug/ml for 30 min at RT (1)
Prediluted format: incubate for 30 min at RT (2)
0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide
Host Species:
Recombinant protein was used as the immunogen for the TTF1 antibody.
Protein G affinity chromatography
Species Reactivity:
Human, Mouse, and Rat. Other species not tested.
Mouse IgG1, kappa


Thyroid transcription factor-1 is a member of the NKx2 family of homeodomain transcription factors. It is expressed in epithelial cells of the thyroid gland and the lung. Anti-TTF-1 is useful in differentiating primary adenocarcinoma of the lung from metastatic carcinomas originating in the breast, mediastinal germ cell tumors, and malignant mesothelioma. TTF-1 reactivity is also seen in thyroid malignancies.


The antibody is stable for at least 1 year from the date of receipt when stored at -20°C to -70°C. Reconstituted antibody can also be aliquotted and stored at 4°C for 1 month or at -20°C to -70°C in a manual defrost freezer for many months without detectable loss activity. Please avoid freeze-thaw cycles.

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This product is furnished for LABORATORY RESEARCH USE ONLY.
Not for diagnostic or therapeutic use.