C1qA, one of three subunits of complement component C1q, contains a collagen-like domain and a globular C1q domain. Within the globular domain, human C1qA shares 73% and 77% aa sequence identity with mouse and rat C1qA, respectively. Six disulfide-linked heterodimers of C1qA and C1qB associate with three disulfide-linked homodimers of C1qC to form C1q. Deficiency in C1qA is associated with the development of autoimmunity.
Human Complement Component C1qA Antibody
R&D Systems | Catalog # MAB4035
Key Product Details
Species Reactivity
Validated:
Human
Cited:
Human
Applications
Validated:
Immunohistochemistry, Western Blot
Cited:
Western Blot
Label
Unconjugated
Antibody Source
Monoclonal Rat IgG2B Clone # 394107
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Product Specifications
Immunogen
E. coli-derived recombinant human Complement Component C1qA
Lys110-Ala245
Accession # P02745
Lys110-Ala245
Accession # P02745
Specificity
Detects recombinant human Complement Component C1qA in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human Complement Component C1qB is observed.
Clonality
Monoclonal
Host
Rat
Isotype
IgG2B
Scientific Data Images for Human Complement Component C1qA Antibody
Detection of Complement Component C1qA in Human Placenta.
Complement Component C1qA was detected in immersion fixed paraffin-embedded sections of Human Placenta using Rat Anti-Human Complement Component C1qA Monoclonal Antibody (Catalog # MAB4035) at 1 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Rat IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC005). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (Catalog # VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to endothelial cells in cytotrophoblast in chorionic villi. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.Applications for Human Complement Component C1qA Antibody
Application
Recommended Usage
Immunohistochemistry
1-15 µg/mL
Sample: Immersion fixed paraffin-embedded sections of Human Placenta
Sample: Immersion fixed paraffin-embedded sections of Human Placenta
Western Blot
1 µg/mL
Sample: Recombinant Human Complement Component C1qA
Sample: Recombinant Human Complement Component C1qA
Formulation, Preparation, and Storage
Purification
Protein A or G purified from hybridoma culture supernatant
Reconstitution
Reconstitute at 0.5 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: Complement Component C1qA
Long Name
Complement Component 1q Subcomponent, A Chain
Alternate Names
C1QA
Gene Symbol
C1QA
UniProt
Additional Complement Component C1qA Products
Product Documents for Human Complement Component C1qA 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 Complement Component C1qA Antibody
For research use only
Related Research Areas
Citations for Human Complement Component C1qA 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
- ClariTSA™ Fluorophore Kits
- 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
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