ID2 (Inhibitor of DNA binding 2; also known as inhibitor of differentiation 2) is a 15 kDa member of the small ID HLH family of proteins. It is a nuclear protein that forms inactivating heterodimers with bHLH transcription factors. bHLH proteins activate lineage-specific genes and ID2. Human ID2 is 134 amino acids (aa) in length. It contains one HLH domain (aa 36-76) but no DNA-binding motif. Full-length human ID2 is 98% aa identical to both mouse and porcine ID2.
Key Product Details
Species Reactivity
Human
Applications
Western Blot, Immunocytochemistry
Label
Unconjugated
Antibody Source
Polyclonal Goat IgG
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Product Specifications
Immunogen
E. coli-derived recombinant human ID2
Met1-Gly134
Accession # Q02363
Met1-Gly134
Accession # Q02363
Specificity
Detects human ID2 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human (rh) ID1, rhID3, and rhID4 is observed.
Clonality
Polyclonal
Host
Goat
Isotype
IgG
Scientific Data Images for Human ID2 Antibody
ID2 in A549 Human Cell Line.
ID2 was detected in immersion fixed A549 human lung carcinoma cell line using 10 µg/mL Human ID2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4660) for 3 hours at room temperature. Cells were stained with the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red, upper panel; Catalog # NL001) and counterstained with DAPI (blue, lower panel). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Detection of Human ID2 by Western Blot.
Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line. PVDF membrane was probed with 1 µg/mL of Human ID2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4660) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for ID2 at approximately 15 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.
Applications for Human ID2 Antibody
Application
Recommended Usage
Immunocytochemistry
5-15 µg/mL
Sample: Immersion fixed A549 human lung carcinoma cell line
Sample: Immersion fixed A549 human lung carcinoma cell line
Western Blot
1 µg/mL
Sample: HeLa human cervical epithelial carcinoma cell line
Sample: HeLa human cervical epithelial carcinoma cell line
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: ID2
Long Name
Inhibitor of DNA Binding 2
Alternate Names
GIG8
Gene Symbol
ID2
UniProt
Additional ID2 Products
Product Documents for Human ID2 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 ID2 Antibody
For research use only
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Appropriate Fixation of IHC/ICC Samples
- Cellular Response to Hypoxia Protocols
- Detection & Visualization of Antibody Binding
- ICC Cell Smear Protocol for Suspension Cells
- ICC Immunocytochemistry Protocol Videos
- ICC for Adherent Cells
- Immunocytochemistry (ICC) Protocol
- Immunocytochemistry Troubleshooting
- Immunofluorescence of Organoids Embedded in Cultrex Basement Membrane Extract
- Immunohistochemistry (IHC) and Immunocytochemistry (ICC) Protocols
- Preparing Samples for IHC/ICC Experiments
- Preventing Non-Specific Staining (Non-Specific Binding)
- Primary Antibody Selection & Optimization
- Protocol for VisUCyte™ HRP Polymer Detection Reagent
- Protocol for the Fluorescent ICC Staining of Cell Smears - Graphic
- Protocol for the Fluorescent ICC Staining of Cultured Cells on Coverslips - Graphic
- Protocol for the Preparation and Fluorescent ICC Staining of Cells on Coverslips
- Protocol for the Preparation and Fluorescent ICC Staining of Non-adherent Cells
- Protocol for the Preparation and Fluorescent ICC Staining of Stem Cells on Coverslips
- Protocol for the Preparation of a Cell Smear for Non-adherent Cell ICC - Graphic
- 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: 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
