• Product name
  • Description
    Rabbit polyclonal to Zhangfei
  • Host species
  • Tested applications
    Suitable for: WBmore details
  • Species reactivity
    Reacts with: Mouse, Human
  • Immunogen

    Synthetic peptide conjugated to KLH derived from within residues 250 to the C-terminus of Human Zhangfei.

    (Peptide available as ab28713.)

  • Positive control
    • This antibody gave a positive signal in the following whole cell lysates: 293T Embryonic Kidney cell line (Human), HepG2 (Human hepatocellular liver carcinoma cell line), MCF7 (Human breast adenocarcinoma cell line), HeLa (Human epithelial carcinoma cell line), PC3 (Human prostate cancer cell line), NIH 3T3 (Mouse embryonic fibroblast cell line). This antibody also gave a positive signal in the following tissue lysates: Human Heart, Human Brain, Human Kidney, Human Liver.


  • Form
  • Storage instructions
    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage buffer
    Preservative: 0.02% Sodium Azide
    Constituents: 1% BSA, PBS, pH 7.4
  • Concentration information loading...
  • Purity
    Immunogen affinity purified
  • Clonality
  • Isotype
  • Research areas


Our Abpromise guarantee covers the use of ab28700 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 1 µg/ml. Detects a band of approximately 50 kDa (predicted molecular weight: 30 kDa).


  • Function
    Strongly activates transcription when bound to HCFC1. Suppresses the expression of HSV proteins in cells infected with the virus in a HCFC1-dependent manner. Also suppresses the HCFC1-dependent transcriptional activation by CREB3 and reduces the amount of CREB3 in the cell. Able to down-regulate expression of some cellular genes in CREBZF-expressing cells.
  • Tissue specificity
    In adults, expressed most abundantly in heart, liver and skeletal muscle, moderately abundant in kidney and pancreas, and barely detectable in lung. In fetal tissues, expressed most abundantly in kidney and very low amounts in heart, lung and liver.
  • Sequence similarities
    Belongs to the bZIP family. ATF subfamily.
    Contains 1 bZIP domain.
  • Cellular localization
    Nucleus. Colocalizes at punctate nuclear structures with CREB3 and HCFC1.
  • Information by UniProt
  • Database links
  • Alternative names
    • 1110034C16Rik antibody
    • 6330417B10Rik antibody
    • AI225749 antibody
    • AI606244 antibody
    • CREB/ATF bZIP transcription factor antibody
    • Crebzf antibody
    • FLJ94018 antibody
    • HCF-binding transcription factor Zhangfei antibody
    • Host cell factor-binding transcription factor Zhangfei antibody
    • LAZip antibody
    • LAZipII antibody
    • SHP-interacting leucine zipper protein antibody
    • SMILE antibody
    • ZF antibody
    • ZHANG_HUMAN antibody
    see all


  • All lanes : Anti-Zhangfei antibody (ab28700) at 1 µg/ml

    Lane 1 : Human heart tissue lysate - total protein (ab29431)
    Lane 2 : Human brain tissue lysate - total protein (ab29466)
    Lane 3 : Human kidney tissue lysate - total protein (ab30203)
    Lane 4 : Human liver tissue lysate - total protein (ab29889)
    Lane 5 : 293T Embryonic Kidney cell line (Human) Whole Cell Lysate
    Lane 6 : HepG2 (Human hepatocellular liver carcinoma cell line) Whole Cell Lysate
    Lane 7 : MCF7 (Human breast adenocarcinoma cell line) Whole Cell Lysate
    Lane 8 : HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate
    Lane 9 : PC3 whole cell lysate (ab3954)
    Lane 10 : NIH 3T3 (Mouse embryonic fibroblast cell line) Whole Cell Lysate

    Lysates/proteins at 20 µg per lane.

    All lanes : Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution

    Performed under reducing conditions.

    Predicted band size: 30 kDa
    Observed band size: 50 kDa (why is the actual band size different from the predicted?)

    Exposure time: 2 minutes

    In the literature Zhangfei is also referred to as SMILE (SHP-interacting leucine zipper protein). The SMILE gene generates two isoforms, SMILE-L (long isoform of SMILE, 50–60 kDa) and SMILE-S (short isoform of SMILE, 40 kDa), and ab28700 predominantly recognizes the SMILE-L form.


This product has been referenced in:
  • Chen F  et al. Construction and expression of lentiviral vectors encoding recombinant mouse CREBZF in NIH 3T3 cells. Plasmid 76C:24-31 (2014). Read more (PubMed: 25195838) »
  • López-Mateo I  et al. The transcription factor CREBZF is a novel positive regulator of p53. Cell Cycle 11:3887-95 (2012). Read more (PubMed: 22983008) »

See all 5 Publications for this product

Customer reviews and Q&As

Further to my previous message, our lab has retested this antibody and produced the attached results. Ab28700 primarily detects the Smile-L isoform. I hope this helps, please let me know if you need any additional information. All lanes : Anti-Zhangfei...

Read More

Thank you for contacting us. I apologize for the delay in my reply. Our lab provided the following explanation for the WB data: This seems to be a challenging target; in Biochem. J. (2008) 416 (463–473) they state: “SMILE (SHP-interact...

Read More
Abcam has not validated the combination of species/application used in this Abreview.
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Human Tissue sections (breast)
Antigen retrieval step
Heat mediated

Dr. fathima sheriff

Verified customer

Submitted Jul 08 2010


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