Influenza A H1N1 (A/Puerto Rico/8/34/Mount Sinai) Matrix protein 1/M1 Protein (His) is expressed in E. coli expression system with His tag. The predicted molecular weight is 29.3 kDa and the accession number is B4UPA8.

H1N1

E. coli

cholinergic receptor, muscarinic 1

The influenza A H1N1 Virus (A/Puerto Rico/8/34/Mount Sinai) M1 protein (NP_040978.1) (Ser 2-Lys 252) was expressed, with a polyhistidine tag at the N-terminus.

> 90 % as determined by SDS-PAGE

A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.

It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

The Influenza virus matrix protein 1 (M1) is a matrix protein of the influenza virus. M1 protein has been shown to play a crucial role in virus replication, assembly, and budding. It forms a coat inside the viral envelope. This is a bifunctional membrane/RNA-binding protein that mediates the encapsidation of RNA-nucleoprotein cores into the membrane envelope. M1 consists of two domains connected by a linker sequence. The N-terminal domain has a multi-helical structure. The C-terminal domain also contains an alpha-helical structure. The M1 protein is the most abundant structural protein in influenza A virus particles. M1 protein of the influenza A virus plays multiple roles in virion assembly and infection. M1 protein was a candidate antigen for a broad-spectrum influenza virus vaccine and the adjuvant chitosan significantly improved the efficacy of the M1 vaccine.