Recombinant Human VSTM1 Protein (Fc Tag)

Name: Recombinant Human VSTM1 Protein (Fc Tag)
Brand: Beta LifeScience
SKU: BLPSN-4845
Availability: InStock

Collections: Other recombinant proteins, Recombinant proteins

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Product Overview

Tag	Fc
Host Species	Human
Accession	Q6UX27
Synonym	MGC119160, MGC119161, SIRL-1, SIRL1, UNQ3033, VSTM1
Background	V-set and transmembrane domain containing 1 (VSTM1) is a protein containing the V-set domains. V-set domains are immunoglobulin-like domains resembling the antibody variable region. V-set domains are found in many kinds of protein families, including immunoglobulin light and heavy chains, several T-cells such as CD2, CD4, CD8, and CD86, myelin membrane adhesion molecules, junction adhesion molecules (JAM), tyrosine-protein kinase receptors, and the programmed cell death protein1.
Description	A DNA sequence encoding the human VSTM1 (Q6UX27-16) extracellular domain (Met 1-Thr 135) was fused with the Fc region of human IgG1 at the C-terminus.
Source	HEK293
Predicted N Terminal	Tyr 17
AA Sequence	Met 1-Thr 135
Molecular Weight	The recombinant human VSTM1/Fc is a disulfide-linked homodimeric protein. The reduced monomer consists of 360 a.a. and has a predicted molecular mass of 40.6 kDa. The apparent molecular mass of the reduced monomer is approximately 50-60 kDa in SDS-PAGE under reducing conditions.
Purity	>90% as determined by SDS-PAGE
Endotoxin	< 1.0 EU per μg of the protein as determined by the LAL method
Bioactivity	Please contact us for detailed information
Formulation	Lyophilized from sterile PBS, pH 7.4.
Stability	The recombinant proteins are stable for up to 1 year from date of receipt at -70°C.
Usage	For Research Use Only
Storage	Store the protein under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated 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.