Catalog No.
YXX08002
Description
Protein L is a multi-domain protein found on the surface of Peptostreptococcus magnus, also known as Peptostreptococcus magnus Protein L (PPL). Unlike Protein A or Protein G, Protein L primarily binds to the kappa light chain of antibodies without interfering with the antigen-binding domain. This unique binding mechanism enables Protein L to interact with a broader range of antibody classes and subtypes, including human IgG, IgM, IgA, and IgD containing kappa light chains, as well as mouse IgG, IgM, rat IgG, Fab fragments, and single-chain variable fragments (scFv), among others.
Expression system
E. coli
Species
Peptostreptococcus magnus
Protein length
Confidential
Predicted molecular weight
41.5 kDa
Nature
Recombinant
Endotoxin level
Please contact with the lab for this information.
Purity
>90% as determined by SDS-PAGE.
Applications
Detection and purification of antibodies and antibody fragments (Fab, ScFv) that contain kappa light chains but not the Fc region.
Form
Lyophilized
Storage buffer
Lyophilized from a solution in PBS pH 7.4, 1mM EDTA, 4% Trehalose, 1% Mannitol.
Reconstitution
Reconstitute in sterile water for a stock solution. A copy of datasheet will be provided with the products, please refer to it for details.
Shipping
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
Stability and Storage
Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for one week. Store at -20 to -80°C for twelve months from the date of receipt.
Alternative Names
Protein L, Peptostreptococcus magnus Protein L, PPL
For research use only. Not for human or drug use.
