Human PITX2 Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human PITX2 in direct ELISAs. In direct ELISAs, less than 5% cross-reactivity with recombinant human PITX1 is observed.
  • Source
    Polyclonal Sheep IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human PITX2
    Ala149-Val317
    Accession # Q99697
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Immunohistochemistry
    5-15 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Immunohistochemistry
PITX2 in Human Thyroid Cancer Tissue. PITX2 was detected in immersion fixed paraffin-embedded sections of human thyroid cancer tissue using Sheep Anti-Human PITX2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7388) at 3 µg/mL overnight at 4 °C. Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counter­stained with hematoxylin (blue). Specific staining was localized to nuclei. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
  • Reconstitution
    Sterile PBS to a final concentration of 0.2 mg/mL.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: PITX2
PITX2 (PITuitary homeoboX 2; also ARP1 and RIEG) is a 33-36 kDa nuclear member of the bicoid subfamily, paired homeobox family of transcription factors. It is widely expressed in the embryo, and serves as the earliest known marker for pituitary gland development. A long isoform commonly called PITX2C also plays a very key role in the establishment of left-right organ asymmetry. PITX2 appears in multiple germ layer derivatives, and it appears that one of its important functions is to integrating retinoic acid and Wnt/ beta -catenin signaling. The N- and C-terminal regions of PITX2 normally interact noncovalently, rendering PITX2 inactive.  Over aa 149‑317, human and mouse PITX2 are identical in aa sequence.
  • Long Name:
    Pituitary Homeobox 2
  • Entrez Gene IDs:
    5308 (Human); 18741 (Mouse); 54284 (Rat)
  • Alternate Names:
    all1-responsive gene 1; ALL1-responsive protein ARP1; ARP1MGC20144; Brx1; Homeobox protein PITX2; IDG2; IGDS; IGDS2; IHG2; IRID2; Otlx2; paired-like homeodomain 2; Paired-like homeodomain transcription factor 2MGC111022; pituitary homeo box 2; pituitary homeobox 2; PITX2; PTX2; RGS; RGSRIEG1Brx1; rieg bicoid-related homeobox transcription factor 1; RIEG bicoid-related homeobox transcription factor; RIEG; RIEG1; RP1; RS; Solurshin
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