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.
Key Product Details
Species Reactivity
Validated:
Human
Cited:
Mouse
Applications
Validated:
Immunohistochemistry, Western Blot
Cited:
Western Blot
Label
Unconjugated
Antibody Source
Polyclonal Sheep IgG
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Product Specifications
Immunogen
Chinese hamster ovary cell line CHO-derived recombinant human LRRC4
Ala39-Lys527
Accession # Q9HBW1
Ala39-Lys527
Accession # Q9HBW1
Specificity
Detects human LRRC4 in direct ELISAs and Western blots. In direct ELISAs and Western blots, approximately 5% cross-reactivity with recombinant human LRRC3 is observed.
Clonality
Polyclonal
Host
Sheep
Isotype
IgG
Scientific Data Images for Human LRRC4 Antibody
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.
Applications for Human LRRC4 Antibody
Application
Recommended Usage
Immunohistochemistry
5-15 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human brain (cerebellum)
Sample: Immersion fixed paraffin-embedded sections of human brain (cerebellum)
Western Blot
0.1 µg/mL
Sample: Recombinant Human LRRC4
Sample: Recombinant Human LRRC4
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
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Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
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.
Calculators
Background: LRRC4
Long Name
Leucine-rich Repeat Containing 4
Alternate Names
BAG, NAG14
Gene Symbol
LRRC4
UniProt
Additional LRRC4 Products
Product Documents for Human LRRC4 Antibody
Certificate of Analysis
To download a Certificate of Analysis, please enter a lot or batch number in the search box below.
Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human LRRC4 Antibody
For research use only
Related Research Areas
Citations for Human LRRC4 Antibody
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Antigen Retrieval Protocol (PIER)
- Antigen Retrieval for Frozen Sections Protocol
- Appropriate Fixation of IHC/ICC Samples
- Cellular Response to Hypoxia Protocols
- Chromogenic IHC Staining of Formalin-Fixed Paraffin-Embedded (FFPE) Tissue Protocol
- Chromogenic Immunohistochemistry Staining of Frozen Tissue
- Detection & Visualization of Antibody Binding
- Fluorescent IHC Staining of Frozen Tissue Protocol
- Graphic Protocol for Heat-induced Epitope Retrieval
- Graphic Protocol for the Preparation and Fluorescent IHC Staining of Frozen Tissue Sections
- Graphic Protocol for the Preparation and Fluorescent IHC Staining of Paraffin-embedded Tissue Sections
- Graphic Protocol for the Preparation of Gelatin-coated Slides for Histological Tissue Sections
- IHC Sample Preparation (Frozen sections vs Paraffin)
- Immunofluorescent IHC Staining of Formalin-Fixed Paraffin-Embedded (FFPE) Tissue Protocol
- Immunohistochemistry (IHC) and Immunocytochemistry (ICC) Protocols
- Immunohistochemistry Frozen Troubleshooting
- Immunohistochemistry Paraffin Troubleshooting
- Preparing Samples for IHC/ICC Experiments
- Preventing Non-Specific Staining (Non-Specific Binding)
- Primary Antibody Selection & Optimization
- Protocol for Heat-Induced Epitope Retrieval (HIER)
- Protocol for Making a 4% Formaldehyde Solution in PBS
- Protocol for VisUCyte™ HRP Polymer Detection Reagent
- Protocol for the Preparation & Fixation of Cells on Coverslips
- Protocol for the Preparation and Chromogenic IHC Staining of Frozen Tissue Sections
- Protocol for the Preparation and Chromogenic IHC Staining of Frozen Tissue Sections - Graphic
- Protocol for the Preparation and Chromogenic IHC Staining of Paraffin-embedded Tissue Sections
- Protocol for the Preparation and Chromogenic IHC Staining of Paraffin-embedded Tissue Sections - Graphic
- Protocol for the Preparation and Fluorescent IHC Staining of Frozen Tissue Sections
- Protocol for the Preparation and Fluorescent IHC Staining of Paraffin-embedded Tissue Sections
- Protocol for the Preparation of Gelatin-coated Slides for Histological Tissue Sections
- R&D Systems Quality Control Western Blot Protocol
- TUNEL and Active Caspase-3 Detection by IHC/ICC Protocol
- The Importance of IHC/ICC Controls
- Troubleshooting Guide: Immunohistochemistry
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars