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Human TSPAN1 Protein (aa 110-211, His Tag)

NET1,TM4C,TM4SF,TSPAN1

Catalog Number P13073-H07H
Organism Species Human
Host Human Cells
Synonyms NET1,TM4C,TM4SF,TSPAN1
Molecular Weight The recombinant human TSPAN1 comprises 122 amino acids and has a predicted molecular mass of 14.1 kDa. The apparent molecular mass of the protein is approximately 32, 27, 18 and 14 kDa in SDS-PAGE under reducing conditions due to glycosylation.
predicted N His
SDS-PAGE
Purity (35.8+ 40.6+11.0+9.6) % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the human TSPAN1 (O60635) (Tyr110-Asn211) was expressed with an N-terminal polyhistidine tag.
Bio-activity
Research Area Immunology |Signal Transduction |Protein Trafficking |Vesicle Transport |Adapters |Transmembrane |
Formulation Lyophilized from sterile PBS, pH 7.4.
1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background TSPAN1 belongs to the transmembrane 4 superfamily, also known as the tetraspanin family. Tetraspanins have four hydrophobic domains, intracellular N- and C-termini and two extracellular domains. Tetraspanins act as scaffolding proteins, anchoring multiple proteins to one area of the cell membrane. They also mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. TSPAN1 interacts with human thiamine transporter-1 (hTHTR-1). HTHTR-1 contributes to intestinal thiamine uptake, and its function is regulated at both the transcriptional and posttranscriptional levels. TSPAN1 and hTHTR-1 colocalize in human intestinal epithelial HuTu-80 cells. Coexpression of TSPAN1 in these cells led to a significant decrease in the rate of degradation of hTHTR-1 compared with cells expressing the hTHTR-1 alone; in fact the half-life of the TSPAN1 protein was twice longer in the former cell type compared with the latter cell type.
Reference
  • Chen L. et al., 2010, J Korean Med Sci. 25 (10): 1438-42.
  • Chen L. et al., 2010, Tumori. 96 (5): 744-50.
  • Nabokina SM. et al., 2011, Am J Physiol Gastrointest Liver Physiol. 301 (5): G808-13.