Abcam, ab158811, Recombinant Human LAMB3 protein

Size: 10µg
Recombinant Human LAMB3 protein is a Human Fragment protein, in the 1064 to 1171 aa range, expressed in Wheat germ, suitable for ELISA, WB.
Key facts
Expression system:Wheat germ,
Tags:GST tag N-Terminus,
Applications:ELISA, WBSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Biologically active:No,
Accession:Q13751,
Animal free:No,
Carrier free:No,
Species:Human,
Storage buffer:pH: 8Constituents: 0.79% Tris HCl, 0.31% Glutathione

Properties and Storage Information:
Shipped at conditions-Dry Ice, Appropriate short-term storage conditions--80°C, Appropriate long-term storage conditions--80°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Laminin subunit beta-3 (LAMB3) is a protein that is part of the laminin family commonly referred to as Laminin-332 or Laminin-5. It weighs approximately 117 kDa. LAMB3 is expressed in the epithelial basement membranes of various tissues including skin and mucous membranes. The protein forms a network essential for maintaining the structural integrity of these membranes playing a mechanical role in cellular adhesion and migration.
Biological function summary
LAMB3 functions within a heterotrimeric complex that includes Laminin-3 (alpha subunit) and Laminin-3 (gamma subunit). These interactions lead to the formation of Laminin-332 which serves as a backbone for cell attachment and spreading. It is important in processes such as epithelial cell proliferation and wound healing. By stabilizing attachments between the basement membrane and epithelial cells LAMB3 supports tissue integrity and repair mechanisms.
Pathways
LAMB3 plays a role in both the integrin signaling and epidermal growth factor receptor (EGFR) pathways. It connects with proteins like the integrin alpha-6 beta-4 complex facilitating cell adhesion and communication with the extracellular matrix. In the EGFR pathway LAMB3's interactions enhance signaling that promotes cellular proliferation and survival playing a part in skin development and maintenance.
Mutations or dysregulations in LAMB3 relate notably to junctional epidermolysis bullosa and certain cancers like squamous cell carcinoma. In junctional epidermolysis bullosa the protein loses its adhesive function affecting the epithelial junctions and causing severe skin blistering. LAMB3 also associates with integrin proteins in cancer contributing to tumor progression and metastasis when dysfunctional affecting cell adhesion and integrity.