Recombinant Human IGSF8 Protein

Name: Recombinant Human IGSF8 Protein
Brand: Beta LifeScience
SKU: BL-3892PS
Availability: InStock

Collections: Other recombinant proteins, Recombinant proteins

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Product Overview

Tag	His
Host Species	Human
Synonym	Immunoglobulin Superfamily Member 8, Keratinocytes-Associated Transmembrane Protein 4, Glu-Trp-Ile EWI Motif-Containing Protein 2, Prostaglandin Regulatory-Like Protein, CD81 Partner 3, CD81P3, LIR-D1, EWI-2, KCT-4, EWI2, PGRL, Immunoglobulin Superfamily Member 8, CD316 Antigen, CD316, IgSF8, KCT4.
Background	Immunoglobulin superfamily member 8 (IGSF8) belongs to the immunoglobulin protein superfamily. IGSF8 interacts with the tetraspanins CD81 and CD9 and may regulate their role in a number of cellular functions including cell migration and viral infection. In addition, the IGSF8 protein may function as a tumor suppressor by inhibiting the proliferation of certain cancers.
Description	IGSF8 Human Recombinant expressed in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 561a.a. (28-579a.a.) and having a molecular weight of 59.6kDa (Molecular size on SDS-PAGE will appear at approximately 50-70kDa). IGSF8 is expressed with a 6a.a. His tag at C-Terminus and purified by unique purification methods.
Source	Sf9
AA Sequence	ADLREVLVPE GPLYRVAGTA VSISCNVTGY EGPAQQNFEW FLYRPEAPDT ALGIVSTKDT QFSYAVFKSR VVAGEVQVQR LQGDAVVLKI ARLQAQDAGI YECHTPSTDT RYLGSYSGKV ELRVLPDVLQ VSAAPPGPRG RQAPTSPPRM TVHEGQELAL GCLARTSTQK HTHLAVSFGR SVPEAPVGRS TLQEVVGIRS DLAVEAGAPY AERLAAGELR LGKEGTDRYR MVVGGAQAGD AGTYHCTAAE WIQDPDGSWA QIAEKRAVLA HVDVQTLSSQ LAVTVGPGER RIGPGEPLEL LCNVSGALPP AGRHAAYSVG WEMAPAGAPG PGRLVAQLDT EGVGSLGPGY EGRHIAMEKV ASRTYRLRLE AARPGDAGTY RCLAKAYVRG SGTRLREAAS ARSRPLPVHV REEGVVLEAV AWLAGGTVYR GETASLLCNI SVRGGPPGLR LAASWWVERP EDGELSSVPA QLVGGVGQDG VAELGVRPGG GPVSVELVGP RSHRLRLHSL GPEDEGVYHC APSAWVQHAD YSWYQAGSAR SGPVTVYPYM HALDTHHHHH H.
Purity	>95.0% as determined by SDS-PAGE.
Endotoxin	<1.0 EU per μg by the LAL method.
Formulation	IGSF8 protein solution (0.5mg/ml) contains Phosphate Buffered Saline (pH 7.4) and 30% glycerol.
Stability	Recombinant protein is stable for 12 months at -70°C
Usage	For Research Use Only
Storage	Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.