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CUSABIO

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CUSABIO is a National High-Tech Enterprise which combines research, production and sales in one. They are dedicated to providing 60,000+ validated antibodies, 8,000+ recombinant proteins, 660+ cytokines and thousands of ELISA kits to global customers in the research fields of cancer, cell biology, immunology, neuroscience, epigenetics, etc. 

What CUSABIO Does:

As a manufacturer of ELISA kits, Exosome isolation kits, antibodies, proteins and related reagents, their only mission is to provide the best products and related custom service to researchers so that they can have a good start for the next breakthrough. CUSABIO's high quality has been guaranteed by many published literatures in all kinds of famous journals, such as Science, Nature, Cell, Developmental Biology, Molecular Cell, Genes & Development, and so on. Now, the publications citing CUSABIO products has reached more than 4,800, with hundreds of publications updating every year.

Kits

CUSABIO has a sound platform for the development of assay kits, mature antigen-antibody research and development systems. Assay kits offered by CASABIO are mainly two types, including ELISA kits and exosome isolation kits. They are proficient in a variety of ELISA technologies such as the double antibody sandwich method, double antigen sandwich method, direct competition ELISA method, indirect competition ELISA blocking method, indirect ELISA method, and other methods. And fine affinity purification technology for the production of Exosome Isolation Kits is also adopted.

Combined with their diagnostic kits development team, CUSABIO is able to develop ELISA kits with clinical diagnostic levels and make the quality in the leading place worldwide. Exosomes have been one of the research hotspots in recent years, and the separation technology of exosomes has been constantly updated and improved. After continuous improvement and repeated testing, CUSABIO has also developed high purity, high yield, and high-efficiency exosome isolation kits. CUSABIO now offers a broad range of ELISA kits covering over 6,000 different assay targets and two Cell Supernatant Exosome Isolation Kits.

Antibodies

CUSABIO offers 60,000+ antibodies that are specific to a variety of species and can be used in multiple applications. Furthermore, the number of CUSABIO antibodies is continuing to grow at a rate of 1000 per year.

As an original manufacturer, CUSABIO designs, produces and validates every antibody in-house. Besides advanced experimental apparatus, CUSABIO antibody line also has a professional technical team, so CUSABIO has succeeded in setting up many technology platforms. At present CUSABIO antibodies can be applied in ELISA, WB, IHC/ICC, IF, IP/Co-IP, ChIP and FC. 

Proteins

CUSABIO Protein Expression Platform has established four recombinant expression systems from prokaryotic (E.coli) to eukaryotic (Yeast, mammalian cell and insect baculovirus), and has also built unique in-vitro E.coil expression system, which enables them to express transmembrane proteins that are usually difficult to express.

CUSABIO currently has 70 native proteins, 100 small molecule antigens, 320 active proteins, 1000+ recombinant proteins in stock, 5700+ developed recombinant proteins, 10,000+ cDNA clones, 36,000+ transmembrane proteins, 500,000+ semi-customized recombinant proteins. 

Custom Service

Given the specificity of each experiment, CUSABIO provides the latest and comprehensive custom services to meet their customers request, including phage display service, antibody service, protein service, gene synthesis service and oligo synthesis service. CUSABIO is very pleased to assist their customers worldwide with all passions and great efforts.

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Recombinant Rotavirus X Outer capsid protein VP4,partial CSB-EP434929RIR



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Specifications

20ug / 100ug / 1mg price = 100ug

Alternative Name(s):

Hemagglutinin

Species: (Organism)

Rotavirus X (isolate RVX/Human/Bangladesh/NADRV-B219/2002/GXP[X]) (RV ADRV-N) (Rotavirus (isolate novel adult diarrhea rotavirus-B219))

Gene Names:

N/A

Tag info:

N-terminal 10xHis-tagged and C-terminal Myc-tagged

Target Protein AA Sequence:

MSLRSLLITTEAVGETTQTSDHQTSFSTRTYNEINDRPSLRVEKDGEKAYCFKNLDPVRYDTRMGEYPFDYGGQSTENNQLQFDLFTKDLMADTDIGLSDDVRDDLKRQIKEYYQQGYRAIFLIRPQNQEQQYIASYSSTNLNFTSQLSVGVNLSVLNKIQENKLHIYSTQPHIPSVGCEMITKIFRTDVDNENSLINYSVPVTVTISVTKATFEDTFVWNQNNDYPNMNYKDLIPAVTKNSIYHDVKR

Expression Region:

1-249aa

Subcellular Location:

Tissue Specificity:

Protein Length:

Partial

Pathway:

Mol. Weight:

33.8 kDa

Purity:

Greater than 85% as determined by SDS-PAGE.

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.

Research Areas:

Others

Function:

Involvement in disease:

Relevance:

Outer capsid protein VP4: Spike-forming protein that mediates virion attachment to the host epithelial cell receptors and plays a major role in cell penetration, determination of host range restriction and virulence. Rotavirus attachment and entry into the host cell probably involves multiple sequential contacts between the outer capsid proteins VP4 and VP7, and the cell receptors. It is subsequently lost, together with VP7, following virus entry into the host cell. Following entry into the host cell, low intracellular or intravesicular Ca2+ concentration probably causes the calcium-stabilized VP7 trimers to dissociate from the virion. This step is probably necessary for the membrane-disrupting entry step and the release of VP4, which is locked onto the virion by VP7.Outer capsid protein VP5*: Forms the spike "foot" and "body" and acts as a membrane permeabilization protein that mediates release of viral particles from endosomal compartments into the cytoplasm. During entry, the part of VP5* that protrudes from the virus folds back on itself and reorganizes from a local dimer to a trimer. This reorganization may be linked to membrane penetration.Outer capsid protein VP8*: Forms the head of the spikes and mediates the recognition of specific host cell surface glycans. It is the viral hemagglutinin and an important target of neutralizing antibodies.

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.

Protein Families:

Reference:

"Whole genomic characterization of a human rotavirus strain B219 belonging to a novel group of the genus Rotavirus." Nagashima S., Kobayashi N., Ishino M., Alam M.M., Ahmed M.U., Paul S.K., Ganesh B., Chawla-Sarkar M., Krishnan T., Naik T.N., Wang Y.-H. J. Med. Virol. 80:2023-2033(2008)