Technical Data
CD44V7 (HCAM, Homing Cell Adhesion Molecule, Pgp-1, Phagocytic Glycoprotein-1, Hermes Antigen, Lymphocyte Homing Receptor, ECM-III, HUTCH-1)
Recent studies indicate that the expression of CD44 on the cell surface changes profoundly during tumor metastasis, particularly during the progression of various carcinomas. Sequencing analysis reveals that CD44 exists in different forms (at least 15 isoforms have been identified) that are variants of the common or standard hemopoietic form CD44s. Specifically, the human CD44 gene contains 19 exons, out of which 10 exons can potentially be alternatively spliced. In particular, CD44s contains exons 115 and exons 1519. The other exons (e.g. 614) are also spliced in a variety of different cells. For example, epithelial cells contain exons 1214 inserted into the CD44s transcripts. This isoform has been designated as CD44E. Other CD44 variants CD44v) have the same sequences at the two ends of the molecule, but differ in a middle region (with different numbers of additional exons) located on the external side of the cell membrane. It has been suggested that expression of CD44 variants with the additional exon 11 (so-called v7) is responsible for tumor progression and metastasis. In fact, CD44v7 expression has been used as an indicator of metastasis.

Suitable for use in ELISA, Flow Cytometry, Immunofluorescence, Immunohistochemistry, Immunoprecipitation, Western Blot and RIA. Other applications have not been tested.

Recommended Dilution:
ELISA: 1:1000-1:2000
Flow Cytometry: 1:500-1:1000
Immunofluorescence: 1:100-1:200
Immunohistochemisty (Paraffin): 1:150-1:250
Immunoprecipitation: 1:100-1:200
Western Blot: 1:5000-1:10,000
RIA: 1:5000
Optimal dilution determined by the researcher.

Storage and Stability:
May be stored at 4C for short-term only. For long-term storage, store at -20C. Stable for at least 12 months at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
100ug-20CBlue IceHumanRabbit
Synthetic peptide corresponding to human CD44v7.
Supplied as a liquid in PBS, 0.01% sodium azide.
Recognizes human CD44v7 (~200-250kD). Species Crossreactivity: rabbit, porcine, mouse, rat, canine and bovine.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Cancer Research (1994) 54:33373341. 2. Proc. Natl. Acad. Sci. (USA), (1992) 89:1216012164. 3. Science (1992) 257:682685.