CD97 Active Protein | ADGRE5 active protein

CD97 Protein, Human, Recombinant (His Tag)

Cat. Num. AAA8120771

• Gene Names: ADGRE5; CD97; TM7LN1
• Purity: >85% as determined by SDS-PAGE
• Synonyms: CD97; CD97 Protein; Human; Recombinant (His Tag); Human ADGRE5/CD97 Protein (His Tag); TM7LN1 Protein; adhesion G protein-coupled receptor E5; ADGRE5 active protein

• Host: HEK293 Cells
• Purity/Purification: >85% as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH7.4. Normally 5%-8% trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
• Sequence: Met1-Gln398

• Species: Human
• Endotoxin: <1.0EU per ug of the protein as determined by the LAL method
• Predicted N Terminal: Gln 21
• Tag: C-His
• Protein Construction: A DNA sequence encoding the first 398 amino acids (Met 1-Gln 398) of human CD97 isoform 2 (NP_001775.2) extracellular domain was fused with a polyhistidine tag at the C-terminus.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
• Activity: 1. Measured by its binding ability in a functional ELISA. Immobilized recombinant human CD97 at 10ug/ml (100uL/well) can bind recombinant human CD55 at a linear range of 0.46-30ug/ml.; 2. Using the Octet RED System. The affinity constant (Kd) of Anti-CD97 Antibody bound to CD97 Protein, Human, Recombinant (His Tag)
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -20 degree C to -80 degree C. Store it under sterile conditions at -20 degree C to -80 degree C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.; In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid.; They are shipped out with blue ice.

SDS-Page

Testing Data

(Using the Octet RED System, the affinity constant (Kd) of CD97 Protein, Human, Recombinant (His Tag) bound to Anti-CD97 Antibody was 0.1 nM.)

Testing Data

(Loaded Anti-CD97 Antibody on AMC Biosensor, can bind CD97 Protein, Human, Recombinant (His Tag) with an affinity constant of 0.2 nM as determined by Octet RED System.)

Related Product Information for ADGRE5 active protein

Background: The cluster of differentiation (CD) system is commonly used as cell markers in immunophenotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules which associating with the immune function of the cell. There are more than 32 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. The CD97 is a receptor predominantly expressed in leukocytes and belongs to a new group of seven-span transmembrane molecules, which is also designed EGF-TM7 family. The family members are characterized by an extended extracellular region with several N-terminal epidermal growth factor-like domains two of which contain a calcium-binding site. Mature CD 97 has two noncovalently associated subunits and is composed of a large extracellular protein (CD97 alpha) and a seven-membrane spanning protein (CD97 beta). CD97 is considered as a defining feature of G protein-coupled receptors. The effects that lymphocytes and erythrocytes adhere to CD97-transfected COS cells suggest that CD97 has the ability to bind cellular ligands. CD97 alpha has three alternatively spliced isoforms that are related to the calcium-binding EGF-like repeats in the microfibril protein fibrillin. Leukocytes strongly positive for CD97 are concentrated at sites of inflammation relative to CD97 expression in normal lymphoid tissues.

References

Ho IC, et al. (2009) GATA3 and the T-cell lineage: essential functions before and after T-helper-2-cell differentiation. Nat Rev Immunol. 9 (2): 125-35.Matesanz-Isabel J, et al. (2011) New B-cell CD molecules. Immunology Letters.134 (2): 104-12.Gray JX, et al. (1996) CD97 is a processed, seven-transmembrane, heterodimeric receptor associated with inflammation. The journal of Immunology. 157 (12): 5438-47.Hamann J,et al. (1998) Characterization of the CD55 (DAF)-binding site on the seven-span transmembrane receptor CD97.European Journal of Immunology. 28 (5): 1701-7.

NCBI and Uniprot Product Information

• NCBI GI #: 17978489
• NCBI GeneID: 976
• NCBI Accession #: NP_001775.2
• NCBI GenBank Nucleotide #: NM_001784.4
• UniProt Accession #: P48960; O00718; O76101; Q8NG72; Q8TBQ7; A8K7Z4; B2RBJ9
• Molecular Weight: 86,628 Da
• NCBI Official Full Name: CD97 antigen isoform 2 preproprotein
• NCBI Official Synonym Full Names: adhesion G protein-coupled receptor E5
• NCBI Official Symbol: ADGRE5
• NCBI Official Synonym Symbols: CD97; TM7LN1
• NCBI Protein Information: CD97 antigen
• UniProt Protein Name: CD97 antigen
• Protein Family: CD97 antigen
• UniProt Gene Name: CD97
• UniProt Entry Name: CD97_HUMAN

NCBI Description

This gene encodes a member of the EGF-TM7 subfamily of adhesion G protein-coupled receptors, which mediate cell-cell interactions. These proteins are cleaved by self-catalytic proteolysis into a large extracellular subunit and seven-span transmembrane subunit, which associate at the cell surface as a receptor complex. The encoded protein may play a role in cell adhesion as well as leukocyte recruitment, activation and migration, and contains multiple extracellular EGF-like repeats which mediate binding to chondroitin sulfate and the cell surface complement regulatory protein CD55. Expression of this gene may play a role in the progression of several types of cancer. Alternatively spliced transcript variants encoding multiple isoforms with 3 to 5 EGF-like repeats have been observed for this gene. This gene is found in a cluster with other EGF-TM7 genes on the short arm of chromosome 19. [provided by RefSeq, Jun 2011]

Uniprot Description

CD97: Receptor potentially involved in both adhesion and signaling processes early after leukocyte activation. Plays an essential role in leukocyte migration. Belongs to the G-protein coupled receptor 2 family. LN-TM7 subfamily. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Receptor, GPCR; GPCR, family 2; Membrane protein, multi-pass; Membrane protein, integral

Chromosomal Location of Human Ortholog: 19p13.12

Cellular Component: extracellular space; focal adhesion; membrane; integral to plasma membrane; plasma membrane

Molecular Function: G-protein coupled receptor activity; protein binding; transmembrane receptor activity; calcium ion binding

Biological Process: G-protein coupled receptor protein signaling pathway; cell surface receptor linked signal transduction; cell-cell signaling; immune response; cell motility; inflammatory response; cell adhesion