Recombinant Avian infectious bronchitis virus Spike glycoprotein (S), partial | CSB-EP320142ARP

Recombinant Avian infectious bronchitis virus Spike glycoprotein (S), partial | CSB-EP320142ARP | Cusabio

Alternative Name(s): Spike glycoprotein(S glycoprotein)(E2)(Peplomer protein) [Cleaved into: Spike protein S1; Spike protein S2; Spike protein S2']

Gene Names: S

Research Areas: Microbiology

Organism: Avian infectious bronchitis virus (strain D274) (IBV)

AA Sequence: ASDYMYGSYHPSCKFRLETINNGLWFNSLSVSLGYGPIQGGCKQSVFANRATCCYAYSYNGPSLCKGVYRGELTKSFECGLLVFVTKTDGSRIQTRNEPFTLTQHNYNNITLDRCVEYNIYGRVGQGFITNVTNYAINYNYLADGGMAILDTSGAIDIFVVQGEYGLNYYKVNPCEDVNQQFVVSGGKLVGILTSRNETGSQPLENQFYIKIINGTRRSRR

Source: E.coli

Tag Info: C-terminal 6xHis-tagged

Expression Region: 318-538aa

Sequence Info: Partial

MW: 27.2 kDa

Purity: Greater than 85% as determined by SDS-PAGE.

Relevance: [Spike protein S1]: attaches the virion to the host cell membrane by interacting with sialic acids, initiating the infection.; [Spike protein S2]: mediates fusion of the virion and cellular membranes by acting as a class I viral fusion protein. Under the current model, the protein has at least 3 conformational states: pre-fusion native state, pre-hairpin intermediate state, and post-fusion hairpin state. During viral and target cell membrane fusion, the coiled coil regions (heptad repeats) assume a trimer-of-hairpins structure, positioning the fusion peptide in close proximity to the C-terminal region of the ectodomain. The formation of this structure appears to drive apposition and subsequent fusion of viral and target cell membranes.; [Spike protein S2']: Acts as a viral fusion peptide after S2 cleavage occurring upon virus endocytosis.

Reference: "Nucleotide sequence of the gene coding for the peplomer protein (= spike protein) of infectious bronchitis virus, strain D274." Jordi B.J.A.M., Kremers D.A.W.M., Kusters H.G., van der Zeijst B.A.M. Nucleic Acids Res. 17:6726-6726(1989)

Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20?/-80?. The shelf life of lyophilized form is 12 months at -20?/-80?.

Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4? for up to one week.

Function:

Involvement in disease:

Subcellular Location:

Protein Families:

Tissue Specificity:

Paythway:

Form: Liquid or Lyophilized powder

Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20?/-80?. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Uniprot ID: P12722

HGNC Database Link: N/A

UniGene Database Link: N/A

KEGG Database Link: N/A

STRING Database Link: N/A

OMIM Database Link: N/A