Recombinant Human Respiratory Syncytial Virus B Matrix M2-1 (M2-1) Protein (His&His)

Name: Recombinant Human Respiratory Syncytial Virus B Matrix M2-1 (M2-1) Protein (His&His)
Brand: Beta LifeScience
SKU: BLC-07810P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

Our products are highly customizable to meet your specific needs. You can choose options such as endotoxin removal, liquid or lyophilized forms, preferred tags, and the desired functional sequence range for proteins. Submitting a written inquiry expedites the quoting process.

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Product Overview

Description	Recombinant Human Respiratory Syncytial Virus B Matrix M2-1 (M2-1) Protein (His&His) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	O42050
Target Symbol	M2-1
Synonyms	Envelope-associated 22 kDa protein
Species	Human respiratory syncytial virus B (strain B1)
Expression System	E.coli
Tag	N-6His&C-6His
Target Protein Sequence	MSRRNPCKFEIRGHCLNGRRCHYSHNYFEWPPHALLVRQNFMLNKILKSMDKSIDTLSEISGAAELDRTEEYALGIVGVLESYIGSINNITKQSACVAMSKLLIEINSDDIKKLRDNEEPNSPKIRVYNTVISYIESNRKNNKQTIHLLKRLPADVLKKTIKNTLDIHKSIIISNPKESTVNDQNDQTKNNDITG
Expression Range	1-195aa
Protein Length	Full Length
Mol. Weight	25.5 kDa
Research Area	Cancer
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Acts as a tetrameric transcription processivity factor that binds in a competitive manner to RNA and the phosphoprotein (P) to prevent premature termination during transcription. Transcription anti-terminator that enhances readthrough of intergenic junctions during viral transcription. Preferentially binds to poly(A)-rich sequences. Plays a role in the association of the matrix protein with the nucleocapsid, which initiates assembly and budding. Also, can activate host NF-kappa-B through association with host RELA.
Subcellular Location	Virion. Host cytoplasm. Host nucleus.
Protein Families	Pneumovirinae M2-1 protein family
Database References	KEGG: vg:1489826

Gene Functions References

an overview of the current understanding of the structure and function of HRSV M2-1, drawing on additional information derived from its structural homologues from other related viruses. PMID: 29900500
M(2-1) is a highly stable, zinc binding tetramer with strong pH-dependent dissociation. PMID: 21877705
epitope mapping; n-terminus has role in protein folding PMID: 15784904
identified a new RSV-specific, H-2K(d)-restricted subdominant epitope in the M2 protein, M2(127-135) (amino acids 127 to 135) PMID: 17182672

FAQs

Please fill out the Online Inquiry form located on the product page. Key product information has been pre-populated. You may also email your questions and inquiry requests to sales1@betalifesci.com. We will do our best to get back to you within 4 business hours.

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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.