> 90 % as determined by SDS-PAGE
< 1.0 EU per μg of the protein as determined by the LAL method
Testing in progress
A DNA sequence encoding the human GBP2 (AAH73163.1) (Met1-Cys588) was expressed with a polyhistidine tag at the C-terminus.
The recombinant human GBP2 consists of 599 amino acids and predicts a molecular mass of 68.3 KDa. It migrates as an approximately 62 KDa band in SDS-PAGE under reducing conditions.
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.
2. Please contact us
for any concerns or special requirements.Please refer to the specific buffer information in the hard copy of CoA.
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 unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -70℃
Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
GBP-2 belongs to the guanylate-binding protein (GBP) family. GBPs are characterized by their ability to specifically bind guanine nucleotides (GMP, GDP, and GTP). As GTPases induced by IFN-gamma (Interferon-inducible GTPase), they are key to the protective immunity against microbial and viral pathogens. GBP-2 is a GTPase that converts GTP to GDP and GMP. It binds GTP, GDP and GMP. GBP-2 hydrolyzes GTP very efficiently. GDP rather than GMP is the major reaction product. GBP-2 is induced by interferons that have antiviral effects and inhibit tumor cell proliferation.
Strausberg RL, et al. (2003) Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences. Proc Natl Acad Sci. 99(26):16899-903.Wistow G, et al. (2002) Expressed sequence tag analysis of human RPE/choroid for the NEIBank Project: over 6000 non-redundant transcripts, novel genes and splice variants. Mol Vis. 8:205-20.Neun R, et al. (1996) GTPase properties of the interferon-induced human guanylate-binding protein 2. FEBS Lett. 390(1):69-72.