LRIG1 (Leucine-rich Repeats, Ig-like domains-1, LIG-1, LIG1)

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£863.00

SKU:: 145509
Reinheit:: Purified by Protein A affinity chromatography from hybridoma culture supernatant.
Lagerbedingungen:: -20°C
Hersteller:: United States Biological
Host:: Mouse
Immunogen:: HEK293 human embryonic kidney cell line transfected with Ala35-Ser779 of human LRIG1.
Klon:: 789211
Format:: Supplied as a lyophilized powder from PBS, 5% trehalose. Reconstitute in 200ul sterile PBS.
Weitere Details:: LRIG1 (leucine-rich repeats and Ig-like domains-1; also LIG-1) is an approximately 134-145 kDa glycoprotein that belongs to the LRIG gene family. It is widely expressed and appears on the surface of prostatic epithelium, endothelial cells, vascular and visceral smooth muscle, mammary epithelium, cardiac muscle, keratinocytes and neurons. LRIG1 is believed to negatively regulate the ErbB family of receptors. In particular, and in a ligand-independent manner, LRIG1 complexes with all four ErbBs, promoting their ubiquitination and decreasing their number. Alternatively, LRIG1 is suggested to bind to the ErbBs, preventing their dimerization and signal transduction. Mature human LRIG1 is a 1059 amino acid (aa) type I transmembrane protein. It contains a large 760 amino acid (aa) extracellular domain (ECD) (aa 35-794) plus a 278 aa cytoplasmic region. The ECD contains 17 LRRs (aa 35‑491) and three C2-type Ig-like domains (aa 495-780). These two domain types are each sufficient for EGFR binding. There are two potential alternative splice forms. One contains a 27 aa insertion after Gly874, while another shows a 24 aa insertion after Lys387 coupled to a Gln substitution for aa 644-691. The LRIG1 ECD undergoes proteolysis, generating 100-110 and 55-60 kDa soluble fragments. Over aa 35‑779, human LRIG1 shares 90% aa sequence identity with mouse LRIG1. Applications: Suitable for use in Flow Cytometry, Immunohistochemistry and Immunocytochemistry. Other applications not tested. Recommended Dilution: Flow Cytometry: 2.5ug/10e6 cells using LNCaP human cell line Immunohistochemistry: 8-25ug/ml using immersion fixed paraffin-embedded sections of human kidney Immunocytochemistry: 8-25ug/ml using immersion fixed SK-BR-3 human breast cancer cell line Optimal dilutions to be determined by the researcher. Storage and Stability: Lyophilized and reconstituted products are stable for 12 months after receipt at -20°C. Reconstitute with sterile PBS. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Versandbedingungen:: Blue Ice