Human CellExp™ sCD14, Human Recombinant

Biomolecule/Target: sCD14

Synonyms: soluble CD14, Cluster of differentiation 14, Myeloid cell-specific leucine-rich glycoprotein, Monocyte differentiation antigen CD14

Alternates names: soluble CD14, Cluster of differentiation 14, Myeloid cell-specific leucine-rich glycoprotein, Monocyte differentiation antigen CD14

Taglines: A surface glycoprotein involved in signaling in response to bacterial lipopolysaccharide (LPS) binding

Taglines: USA

Country of Animal Origin: USA

NCBI Gene ID #.: 929

NCBI Gene Symbol: CD14

Gene Source: Human

Accession #: P08571

Recombinant: Yes

Source: HEK 293 cells

Purity by SDS-PAGE #: ≥95%

Assay: SDS-PAGE

Purity: N/A

Assay #2: HPLC

Endotoxin Level: < 0.1 ng/μg of protein (<1EU/μg).

Activity (Specifications/test method): Determined by the dose dependent activation of NF-kappaB in a RAW264 cell line based reporter system, using a sCD14 concentration range of 20 ng/ul to 200 ng/ul. The NF-kappaB activation is enhanced when the assay is done in the presence of 0.25 ng/ul to 1.0 ng/ul bacterial LPS.

Biological activity: Determined by the dose dependent activation of NF-kappaB in a RAW264 cell line based reporter system, using a sCD14 concentration range of 20 ng/ul to 200 ng/ul. The NF-kappaB activation is enhanced when the assay is done in the presence of 0.25 ng/ul to 1.0 ng/ul bacterial LPS.

Results: N/A

Binding Capacity: N/A

Unit Definition: N/A

Molecular Weight: ~35 kDa

Concentration: N/A

Appearance: Lyophilized powder

Physical form description: Sterile filtered through a 0.2 micron filter. Lyophilized from 10 mM Sodium phosphate, pH 7.5.

Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Background Information: CD14 is a cell surface anchored glycoprotein that is expressed predominantly by monocytes and tissue macrophages. CD14 associates with MD-2 (LY-96) and TLR4 to form a receptor complex, which signals specifically in response to bacterial lipopolysaccharide (LPS) binding. The CD14/MD-2/TLR4 receptor complex signals via MyD88, TIRAP, and TRAF6, and ultimately activates NF-kappa-β. CD14 also exists in a soluble form, designated as sCD14, which is capable of specifically binding LPS in the extracellular space. Recombinant sCD14 is a 331 amino acid glycoprotein comprising the extracellular portion of the CD14 receptor.

Amino acid sequence: TTPEPCELDD EDFRCVCNFS EPQPDWSEAF QCVSAVEVEI HAGGLNLEPF LKRVDADADP RQYADTVKAL RVRRLTVGAA QVPAQLLVGA LRVLAYSRLK ELTLEDLKIT GTMPPLPLEA TGLALSSLRL RNVSWATGRS WLAELQQWLK PGLKVLSIAQ AHSPAFSCEQ VRAFPALTSL DLSDNPGLGE RGLMAALCPH KFPAIQNLAL RNTGMETPTG VCAALAAAGV QPHSLDLSHN SLRATVNPSA PRCMWSSALN SLNLSFAGLE QVPKGLPAKL RVLDLSCNRL NRAPQPDELP EVDNLTLDGN PFLVPGTALP HEGSMNSGVV P

Handling: Centrifuge the vial prior to opening.

Usage: For Research Use Only! Not to be used in humans