VSIG4 His Tag Protein, Human,specification,price,image-Bio-Equip in China

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Product Specification

Species	Human
Synonyms	VSIG4, CRIg, Z39IG
Accession	Q9Y279-1
Amino Acid Sequence	Arg20-Pro283, with C-terminal His
Expression System	HEK293
Molecular Weight	45-50kDa (Reducing)
Purity	＞95% by SDS-PAGE & >95% by SEC-HPLC
Endotoxin	<0.1EU/μg
Tag	His Tag
Physical Appearance	Lyophilized Powder
Storage Buffer	PBS, 5% trehalose, PH7.4
Reconstitution	Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.
Stability & Storage	· 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles.
Reference	1. Pan W, Huang W, Zheng J, Meng Z, Pan X. Construction of a prognosis model of head and neck squamous cell carcinoma pyroptosis and an analysis of immuno-phenotyping based on bioinformatics. Transl Cancer Res. 2024 Jan 31;13(1):299-316. 2. Miao J, Tu Y, Jiang J, Ren R, Wu Q, Liang H, Wang T, Lin B, Wu J, Pan Y, Wang X, Jin H. VSIG4 inhibits RANKL-induced osteoclastogenesis by enhancing Nrf2-dependent antioxidant response against reactive oxygen species production. Int J Biol Macromol. 2024 Mar;260(Pt 2):129357.

Background

VSIG4 (V-set and immunoglobulin domain containing 4), also known as CRIg and Z39IG, is a type I transmembrane protein of the B7 family within the Ig superfamily. VSIG4 contains two Ig-like (immunoglobulin-like) domains. VSIG4 is abundantly expressed in several fetal tissues. In adult tissues, the highest expression of VSIG4 is in lung and placenta. 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.