LRRC4 in Human Brain. LRRC4 was detected in immersion fixed paraffin-embedded sections of human brain (cerebellum) using 15 µg/mL Sheep Anti-Human LRRC4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4995) overnight at 4 °C. Tissue was stained with the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
LRRC4 (Leu-rich repeat/LRR-containing protein 4; also brain tumor-associated protein) is a 55 kDa (predicted) member of the Leu-rich protein family. It is expressed on neurons and astrocytes, and antagonizes the signaling pathways for cytokines and growth factors. It is reduced in expression in tumors. Human LRRC4 is a type I transmembrane protein that is 653 amino acids (aa) in length. It contains a 489 aa extracellular region (aa 39-527), and a 105 aa cytoplasmic domain. The extracellular region shows nine LRRs (aa 74-288), a C2 type Ig-like domain (aa 354-440), and a Thr rich segment (aa 455-526). Over aa 39-527, human LRRC4 is 98% aa identical to both mouse and canine LRRC4, respectively.
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