ProSci

VSIG4 Recombinant Protein

Product Code:
 
PSI-91-499
Product Group:
 
Recombinant Proteins
Supplier:
 
ProSci
Regulatory Status:
 
RUO
Target Species:
 
Human
Storage:
 
Lyophilized protein should be stored at -20˚C, though stable at room temperature for 3 weeks.
Reconstituted protein solution can be stored at 4-7˚C for 2-7 days.
Aliquots of reconstituted samples are stable at -20˚C for 3 months.
 

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PSI-91-499-0.05mg0.05mg£541.00
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Further Information

Additional Names:
V-Set and Immunoglobulin Domain-Containing Protein 4, Protein Z39Ig, VSIG4, CRIg, Z39IG
Application Note:
This recombinant protein can be used for biological assays. For research use only.
Background:
V-Set and Immunoglobulin Domain-Containing Protein 4 (VSIG4) is a 45-50 kDa macrophage-specific transmembrane glycoprotein that belongs to the B7 family-related protein and an Ig superfamily member. In contrast to the B7 family members which contain two IgG domains, VSIG4 contains one complete V-type Ig domain and a truncated C-type I g domain. VSIG4 is abundantly expressed in several fetal tissues. In adult tissues, the highest expression of VSIG4 is in lung and placenta. It is also expressed in resting macrophages. No VSIG4 expression appears to be present in T and B cells. The specific expression of VSIG4 on resting macrophages in tissue suggests that this inhibitory ligand may be important for the maintenance of T cell unresponsiveness in healthy tissues. VSIG4 functions as a negative regulator of T cell activation, and may be involved in the maintenance of peripheral T cell tolerance, and is also identified as a potent suppressor of established inflammation. VSIG4 is a phagocytic receptor, strong negative regulator of T-cell proliferation and IL2 production. It is a potent inhibitor of the alternative complement pathway convertases. Human VSIG4 is 399 amino acids (aa) in length. It is a type I transmembrane (TM) glycoprotein that contains a 264 aa extracellular domain (ECD) (aa 20 - 283) and a 95 aa cytoplasmic region.
Buffer:
Lyophilized from a 0.2 um filtered solution of 20mM PB, 150mM NaCl, pH 7.2. It is not recommended to reconstitute to a concentration less than 100 ug/ml. Dissolve the lyophilized protein in ddH2O.
Fusion Tag:
C-6 His tag
NCBI Gene ID #:
11326
NCBI Official Name:
V-set and immunoglobulin domain containing 4
NCBI Official Symbol:
VSIG4
NCBI Organism:
Homo sapiens
Physical State:
Lyophilized
Predicted Molecular Weight:
30.2 kD
Protein Accession #:
Q9Y279
Purity:
Greater than 95% as determined by reducing SDS-PAGE.
Endotoxin level less than 0.1 ng/ug (1 IEU/ug) as determined by LAL test.
Recombinant Protein Sequence:
Thr32-Gly402
Source:
Human Cells
Swissprot #:
Q9Y279

Documents