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HLA-B15 Protein (AA 25-362) (rho-1D4 tag)

Crystallography grade HLA-B15 Origin: Human Host: Insect Cells Recombinant >95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot. Crys, ELISA, SDS, WB
Catalog No. ABIN3097255
  • Target See all HLA-B15 products
    HLA-B15 (HLA Class I Histocompatibility Antigen, B-15 alpha Chain (HLA-B15))
    Protein Type
    Recombinant
    Protein Characteristics
    AA 25-362
    Origin
    Human
    Source
    • 1
    Insect Cells
    Purification tag / Conjugate
    This HLA-B15 protein is labelled with rho-1D4 tag.
    Application
    Crystallization (Crys), ELISA, SDS-PAGE (SDS), Western Blotting (WB)
    Sequence
    GSHSMRYFYT AMSRPGRGEP RFIAVGYVDD TQFVRFDSDA ASPRMAPRAP WIEQEGPEYW DRETQISKTN TQTYRESLRN LRGYYNQSEA GSHTLQRMYG CDVGPDGRLL RGHDQSAYDG KDYIALNEDL SSWTAADTAA QITQRKWEAA REAEQWRAYL EGLCVEWLRR YLENGKETLQ RADPPKTHVT HHPISDHEAT LRCWALGFYP AEITLTWQRD GEDQTQDTEL VETRPAGDRT FQKWAAVVVP SGEEQRYTCH VQHEGLPKPL TLRWEPSSQS TIPIVGIVAG LAVLAVVVIG AVVATVMCRR KSSGGKGGSY SQAASSDSAQ GSDVSLTA
    Sequence without tag. Tag location is at the discretion of the manufacturer. If you have a special request, please contact us.
    Characteristics
    • Made in Germany - from design to production - by highly experienced protein experts.
    • Human HLA-B Protein (raised in Insect Cells) purified by multi-step, protein-specific process to ensure crystallization grade.
    • State-of-the-art algorithm used for plasmid design (Gene synthesis).

    This protein is a made to order protein and will be made for the first time for your order. Our experts in the lab will ensure that you receive a correctly folded protein.

    The big advantage of ordering our made-to-order proteins in comparison to ordering custom made proteins from other companies is that there is no financial obligation in case the protein cannot be expressed or purified.

    In the unlikely event that the protein cannot be expressed or purified we do not charge anything (other companies might charge you for any performed steps in the expression process for custom-made proteins, e.g. fees might apply for the expression plasmid, the first expression experiments or purification optimization).

    When you order this made-to-order protein you will only pay upon receival of the correctly folded protein. With no financial risk on your end you can rest assured that our experienced protein experts will do everything to make sure that you receive the protein you ordered.

    The concentration of our recombinant proteins is measured using the absorbance at 280nm. The protein's absorbance will be measured in several dilutions and is measured against its specific reference buffer.

    The concentration of the protein is calculated using its specific absorption coefficient. We use the Expasy's protparam tool to determine the absorption coefficient of each protein.

    Purification
    Three step purification of membrane proteins expressed in baculovirus infected SF9 insect cells:
    1. Membrane proteins are fractioned by ultracentrifugation and subsequently solubilized with different detergents (detergent screen). Samples are analyzed by Western blot.
    2. The best performing detergent is used for solubilization and the proteins are purified via their rho1D4 tag via two rho1D4 antibody columns: one DTT resistant, the other one not. Eluate fractions are analyzed by Western blot.
    3. Protein containing fractions of the best purification are subjected to second purification step through size exclusion chromatograph. Eluate fractions are analyzed by SDS-PAGE and Western blot.
    Purity
    >95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot.
    Sterility
    0.22 μm filtered
    Endotoxin Level
    Protein is endotoxin-free.
    Grade
    Crystallography grade
  • Application Notes
    In addition to the applications listed above we expect the protein to work for functional studies as well. As the protein has not been tested for functional studies yet we cannot offer a guarantee though.
    Comment

    In cases in which it is highly likely that the recombinant protein with the default tag will be insoluble our protein lab may suggest a higher molecular weight tag (e.g. GST-tag) instead to increase solubility. We will discuss all possible options with you in detail to assure that you receive your protein of interest.

    Restrictions
    For Research Use only
  • Format
    Liquid
    Buffer
    100 mM NaCL, 20 mM Hepes, 10% glycerol. pH value is at the discretion of the manufacturer.
    Handling Advice
    Avoid repeated freeze-thaw cycles.
    Storage
    -80 °C
    Storage Comment
    Store at -80°C.
    Expiry Date
    Unlimited (if stored properly)
  • Target
    HLA-B15 (HLA Class I Histocompatibility Antigen, B-15 alpha Chain (HLA-B15))
    Alternative Name
    HLA class I histocompatibility antigen, B-15 alpha chain (HLA-B15 Products)
    Synonyms
    AS Protein, HLAB Protein, SPDA1 Protein, major histocompatibility complex, class I, B Protein, HLA-B Protein
    Background
    Involved in the presentation of foreign antigens to the immune system.
    Molecular Weight
    39.0 kDa Including tag.
    UniProt
    P30464
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