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Human CD99 Protein, ECD (Extracellular Domain), Fc-fusion, Recombinant

Product ID: CD99-Fc (SKU#: FCL0129)

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$398.00
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Description

CD99, also known as MIC2, HBA71 and T-cell surface glycoprotein E2, is a single-pass type I transmembrane protein, which is the founding member of the CD99 protein family, including CD99, CD99L2, and XG. Human CD99 contains a 100-aa extracellular domain (ECD) with no identifiable motifs, N­linked glycosylation sites, or cysteine residues but with potential sites for O­linked glycosylation. The cytoplasmic region, albeit short, has signal transduction capability. CD99 is expressed on most hematopoietic cells, endothelial cells and at the borders between confluent cells. Cells known to express CD99 include fibroblasts, neutrophils, T cells, double­positive thymocytes, CD34+ stem cells, monocytes and endothelial cells.  There are multiple isoforms for human CD99, which appears to activate distinctive signal pathways and mediate different biological outcomes. CD99 may be a receptor for PILR-alpha and -beta, which are found on selected leukocytes. CD99 is involved in leukocyte migration, T-cell adhesion, ganglioside GM1 and transmembrane protein transport, and T-cell death by a caspase-independent pathway. Homophilic interaction between CD99 on the neutrophil and on the endothelial cell regulates the transendothelial migration of neutrophils during inflammation.  CD99 possesses the ability to rearrange the actin cytoskeleton and may function as an oncosuppressor in osteosarcoma. CD99 is a specific marker for Ewing's sarcoma, primitive neuroectodermal tumor, and sex cord-stromal tumors.  The degree of CD99 reactivity correlates with the degree of differentiation in Sertoli-Leydig cell tumors.

 

CD99, also known as MIC2, HBA71 and T-cell surface glycoprotein E2, is a single-pass type I transmembrane protein, which is the founding member of the CD99 protein family, including CD99, CD99L2, and XG. Human CD99 contains a 100-aa extracellular domain (ECD) with no identifiable motifs, N­linked glycosylation sites, or cysteine residues but with potential sites for O­linked glycosylation. The cytoplasmic region, albeit short, has signal transduction capability. CD99 is expressed on most hematopoietic cells, endothelial cells and at the borders between confluent cells. Cells known to express CD99 include fibroblasts, neutrophils, T cells, double­positive thymocytes, CD34+ stem cells, monocytes and endothelial cells.  There are multiple isoforms for human CD99, which appears to activate distinctive signal pathways and mediate different biological outcomes. CD99 may be a receptor for PILR-alpha and -beta, which are found on selected leukocytes. CD99 is involved in leukocyte migration, T-cell adhesion, ganglioside GM1 and transmembrane protein transport, and T-cell death by a caspase-independent pathway. Homophilic interaction between CD99 on the neutrophil and on the endothelial cell regulates the transendothelial migration of neutrophils during inflammation.  CD99 possesses the ability to rearrange the actin cytoskeleton and may function as an oncosuppressor in osteosarcoma. CD99 is a specific marker for Ewing's sarcoma, primitive neuroectodermal tumor, and sex cord-stromal tumors.  The degree of CD99 reactivity correlates with the degree of differentiation in Sertoli-Leydig cell tumors.

 

Product Details

 

Gene Symbol: CD99; MIC2; HBA71; MIC2X; MIC2Y; MSK5X; E2; 12E7

 

NCBI Gene ID: 4267

 

Uniprot Entry: P14209

 

Construct Details: The recombinant human CD99-Fc is expressed as a 329 amino acid protein consisting of Asp23 - Ala123 region of CD99 (UniProt #P14209 - isoform 1) and a C-terminal Fc fusion from human IgG1, which exists as a dimer under non-reducing condition.

 

Source: Human cells stably expressing human CD99-Fc and growing in chemical-defined media with no animal components or antibiotics

 

Deduced Amino Acid Sequence:

DGGFDLSDALPDNENKKPTAIPKKPSAGDDFDLGDAVVDGENDDPRPPNPPKPMPNPNPNH

PSSSGSFSDADLADGVSGGEGKGGSDGGGSHRKEGEEADASTGTHTCPPCPAPELLGGPSV

FLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYR

VVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSREEMTKNQ

VSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVF

SCSVMHEALHNHYTQKSLSLSPGK

 

M.W.: Calculated molecular mass (kDa): 35.7; Estimated by SDS-PAGE under reducing condition (kDa): 50-55

 

Calculated PI: 5.18

 

Calculated extinction coefficients (M-1 cm-1, at 280nm):  35785

 

Purity: >95% judged by SDS-PAGE under reducing condition (see the gel image above, labeled as "DTT: +")

 

Formulation: Supplied at 0.5 mg/ml in sterile PBS pH7.4 (carrier & preservative free).

 

Endotoxin Level: <0.1 EU per 1 μg of purified recombinant protein determined by the LAL method

 

Biological Activity: Immobilized CD99-Fc protein supports homophillic interaction with CD99 itself (e.g., via biotinylated CD99 protein) by a functional ELISA.

 

 

  

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

Restriction: This product is not transferable or re-sellable.  Customer obtain no right to transfer, assign, or sublicense its use rights, or to transfer, resell, package, or otherwise distribute the product, or to use the product for the benefit of any third party or for any commercial purpose.  Customer may only use the product in compliance with applicable local, state and federal laws, regulations and rules.  Customer may not directly or indirectly use the product or allow the transfer, transmission, export or re-export of all or any part of the product in violation of any export control law or regulation of the united states or any other relevant jurisdiction.  Your use of this product constitutes acceptance of the terms of this limited use agreement.  Please refer to our “terms & conditions” for details.  If you are not willing to accept the limitation of this agreement, G&P Biosciences will accept return of the product for a full/partial refund.

 

Storage

 

The product is shipped at 4°C. Upon receipt, centrifuge the product briefly before opening the vial. It is recommended to store small aliquots at the temperature below –20°C for long-term storage and the product is stable for 3 months. The undiluted protein can be stored at 4°C for no more than 2 weeks.

 

 

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

 

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

 

References

 

1. EMBO J. 8:3253 (1989).   

2. Blood 83:415 (1994).  

3. J. Immunol. 159:2250 (1997).  

4. Nat. Immunol. 3:143 (2002).  

5. J. Exp. Med. 199:525 (2004). 

6. J. Biol. Chem. 281:34833 (2006).   

 

 



 

Documentation

 

Product datasheet (pdf) can be downloaded here: FCL0129-PDS.pdf

 

 

 

Additional supporting documents, including COA and MSDS are available upon request.

 

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

Restriction: This product is not transferable or re-sellable.  Customer obtain no right to transfer, assign, or sublicense its use rights, or to transfer, resell, package, or otherwise distribute the product, or to use the product for the benefit of any third party or for any commercial purpose.  Customer may only use the product in compliance with applicable local, state and federal laws, regulations and rules.  Customer may not directly or indirectly use the product or allow the transfer, transmission, export or re-export of all or any part of the product in violation of any export control law or regulation of the united states or any other relevant jurisdiction.  Your use of this product constitutes acceptance of the terms of this limited use agreement.  Please refer to our “terms & conditions” for details.  If you are not willing to accept the limitation of this agreement, G&P Biosciences will accept return of the product for a full/partial refund.

 

Molecule Class 1-Pass Type I Transmembrane
Gene Synonym MIC2; HBA71; MIC2X; MIC2Y; MSK5X; E2; 12E7
Gene Family CD99 Family
Research Area Immunology
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C
Pathway/Disease Cell Adhesion
Species
Human
CD Antigen CD99

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