The ADAL-1 antibody (e.g., catalog #27369-1-AP) targets the human ADAL1 protein, encoded by the ADAL gene (Entrez Gene ID: 161823). This antibody is widely used in research to investigate ADAL1’s enzymatic functions, including its role in hydrolyzing N6-methyl-AMP (N6-mAMP) to inosine monophosphate (IMP) and methylamine . ADAL1 is implicated in nucleotide pool sanitation and drug metabolism, particularly for N6-substituted purine analogs .
Western Blot (WB): Detects ADAL1 in Jurkat, LNCaP, and K-562 cell lysates at 1:1000–1:4000 dilution .
Immunohistochemistry (IHC): Validated in human heart and breast cancer tissues (1:50–1:500 dilution) .
| Application | Dilution Range |
|---|---|
| WB | 1:1000–1:4000 |
| IHC (Paraffin) | 1:50–1:500 |
Antigen retrieval using TE buffer (pH 9.0) or citrate buffer (pH 6.0) is advised for IHC .
ADAL1 exhibits substrate specificity for purine nucleoside monophosphates, particularly N6-alkylated derivatives. Key findings include:
Catalyzes hydrolysis at the 6-position of purine/2-aminopurine monophosphates, impacting prodrug metabolism .
Contains a catalytic zinc ion critical for enzymatic activity .
May regulate cytosolic methylated adenosine levels, linking it to nucleotide pool homeostasis .
These properties highlight its potential as a biomarker for drug development and metabolic studies.
ADAL-1 antibodies enable critical investigations into nucleotide metabolism and drug resistance mechanisms. For example, ADAL1’s role in detoxifying N6-methyl-AMP analogs suggests its involvement in chemotherapeutic drug efficacy . Further studies using this antibody could clarify its regulatory networks and therapeutic targeting potential.
ADAL-1 antibody is designed to detect the adenosine deaminase-like protein (ADAL), a member of the Adenosine and AMP deaminases protein family. In humans, the canonical ADAL protein comprises 355 amino acid residues with a molecular mass of approximately 40.3 kDa . This antibody specifically recognizes epitopes on the ADAL protein, which functions as a catalyst in the hydrolysis of free cytosolic methylated adenosine nucleotide N(6)-methyl-AMP (N6-mAMP) to produce inositol monophosphate (IMP) and methylamine . The specificity of recognition depends on the antibody's design, with some versions targeting the C-terminal region, particularly amino acids 317-344 .
ADAL-1 antibody is typically generated from rabbits immunized with a KLH-conjugated synthetic peptide corresponding to amino acids 317-344 from the C-terminal region of human ADAL protein . The antibody is commonly purified using Protein A affinity chromatography, which ensures high specificity for the target antigen . The binding domain is configured to recognize specific epitopes on the ADAL protein with high affinity, allowing for sensitive detection in various experimental applications. The antibody's structure incorporates variable regions that determine its specificity and constant regions that dictate its functional properties within experimental systems.
The ADAL-1 antibody demonstrates cross-reactivity with ADAL proteins from multiple species, making it versatile for comparative studies. Based on available data, this antibody has confirmed reactivity with human and mouse ADAL proteins . Additional cross-reactivity has been reported with ADAL from rat, bovine, dog, guinea pig, horse, pig, zebrafish, and several other vertebrate species . This broad cross-reactivity profile stems from the high conservation of ADAL protein sequences across vertebrate species, particularly in the C-terminal region where many ADAL antibodies, including ADAL-1, bind.
ADAL-1 antibody has been validated for multiple experimental applications in laboratory research. Western blotting (WB) serves as the primary application, where the antibody effectively detects ADAL protein in denatured samples . Immunohistochemistry (IHC), including paraffin-embedded section staining (IHC-P), represents another validated application allowing visualization of ADAL distribution in tissue samples . The antibody is also suitable for enzyme-linked immunosorbent assay (ELISA) analysis, enabling quantitative measurement of ADAL protein in complex samples . Each application requires specific optimization parameters to ensure reliable and reproducible results when using ADAL-1 antibody.
For optimal Western blot results with ADAL-1 antibody, researchers should follow this methodological approach:
Sample preparation: Prepare protein lysates from tissues or cells of interest using a standard lysis buffer containing protease inhibitors.
Protein separation: Separate 20-50 μg of total protein on a 10-12% SDS-PAGE gel.
Transfer: Transfer proteins to a PVDF or nitrocellulose membrane at 100V for 60-90 minutes.
Blocking: Block non-specific binding sites with 5% non-fat dry milk or 3% BSA in TBST for 1 hour at room temperature.
Primary antibody incubation: Dilute ADAL-1 antibody at 1:500 to 1:2000 in blocking buffer and incubate the membrane overnight at 4°C.
Washing: Wash membrane 3-5 times with TBST, 5 minutes each.
Secondary antibody: Incubate with HRP-conjugated or other labeled secondary antibody (species-specific to the ADAL-1 host) for 1-2 hours at room temperature.
Detection: Develop using chemiluminescent substrate and image using appropriate documentation system.
Researchers should expect to observe a specific band at approximately 40-42 kDa corresponding to ADAL protein .
For effective immunohistochemistry using ADAL-1 antibody, researchers should:
Tissue preparation: Fix tissues in 10% neutral buffered formalin and embed in paraffin.
Sectioning: Cut 4-6 μm sections and mount on positively charged slides.
Deparaffinization: Remove paraffin and rehydrate through graded alcohols to water.
Antigen retrieval: Perform heat-induced epitope retrieval in citrate buffer (pH 6.0) or EDTA buffer (pH 9.0) for 15-20 minutes.
Endogenous peroxidase blocking: Block with 3% hydrogen peroxide for 10 minutes.
Protein blocking: Block with 5% normal serum (from the same species as secondary antibody) for 30 minutes.
Primary antibody: Apply diluted ADAL-1 antibody (1:100 to 1:500) and incubate at 4°C overnight or 1-2 hours at room temperature.
Detection system: Use appropriate detection system (such as HRP-polymer) according to manufacturer's instructions.
Counterstaining: Counterstain with hematoxylin, dehydrate, and mount.
Optimization of antibody dilution and antigen retrieval conditions is essential for specific staining and minimal background .
Integrating ADAL-1 antibody into multiplex immunoassay systems requires careful consideration of antibody compatibility and detection strategies. For fluorescence-based multiplex systems, ADAL-1 antibody can be directly labeled with fluorophores such as FITC, which has been validated for this antibody . When designing multiplex panels, researchers should select antibodies raised in different host species or use isotype-specific secondary antibodies to prevent cross-reactivity. For electrochemiluminescence-based platforms, researchers can adapt methodology similar to that described for other antibody detection systems using SULFO-TAG labeled detection reagents, such as Protein-A/G for broad species reactivity . To minimize background and enhance specificity in multiplex systems, optimal blocker-diluents should be employed, such as those identified in similar antibody detection systems (ChonBlock, Assay Diluent, or Blocker casein) .
Researchers frequently encounter technical challenges when working with ADAL-1 antibody. Here are methodological approaches to overcome common issues:
High background signal:
Increase blocking time (up to 2 hours) with 5% BSA or 5% normal serum
Use optimized blocker-diluents that maximize signal-to-noise ratios
Implement a data transformation strategy involving target-coated and uncoated wells to normalize background signals
Increase washing steps (5-6 washes) with 0.1% Tween-20 in buffer
Weak or no signal detection:
Optimize protein extraction methods to ensure proper exposure of epitopes
Test different antigen retrieval methods for IHC applications
Decrease antibody dilution (increase concentration)
Extend primary antibody incubation time
Non-specific binding:
Employ more stringent washing procedures
Pre-adsorb the antibody with non-specific proteins
Use peptide competitors to confirm specificity
Implement matched isotype controls to verify signal specificity
Cross-reactivity concerns:
When analyzing quantitative data from experiments using ADAL-1 antibody, researchers should follow these methodological principles:
Standard curve preparation:
Data normalization strategies:
Establishing valid detection thresholds:
Implement screening cut points based on statistical analysis of background responses
Calculate signal-to-noise ratios to determine meaningful detection limits
Apply appropriate outlier identification and management procedures
Comparative analysis across experimental conditions:
Account for biological variation by including multiple biological replicates
Apply appropriate statistical tests (ANOVA, t-test) after confirming data meets assumptions
Consider fold-change values in addition to absolute measurements for biologically meaningful interpretation
Validation of results:
Confirm findings using complementary detection methods
Include positive and negative controls in each experimental run
Verify consistency across technical replicates
Implementing rigorous quality control measures is essential when working with ADAL-1 antibody to ensure reliable and reproducible results. Researchers should:
Validate antibody lot consistency:
Test each new lot against a reference standard
Compare staining patterns or signal intensities between lots
Document lot-specific working dilutions and conditions
Include appropriate controls in each experiment:
Positive control (tissue/cells known to express ADAL)
Negative control (ADAL-negative samples or ADAL-knockout models)
Technical controls (secondary antibody only, isotype control)
Peptide competition controls (pre-incubation with immunizing peptide)
Monitor antibody stability and storage conditions:
Store according to manufacturer recommendations (typically at -20°C)
Avoid repeated freeze-thaw cycles (aliquot upon receipt)
Track antibody performance over time to detect potential degradation
Standardize experimental protocols:
Document detailed protocols including all parameters
Use consistent reagents and instruments across experiments
Implement regular calibration of detection instruments
Employ statistical quality control:
Establish acceptance criteria for control samples
Monitor inter-assay and intra-assay coefficients of variation
Implement Levey-Jennings charts for longitudinal quality tracking
When facing inconsistent results between antibody batches, researchers should systematically:
Perform side-by-side comparison testing:
Run parallel experiments with both old and new antibody batches
Use identical samples, conditions, and protocols
Quantify and document differences in signal intensity, specificity, or background
Adjust working concentrations:
Titrate each new batch to determine optimal working dilution
Consider that different batches may require different dilution factors
Document batch-specific dilutions for future reference
Modify incubation conditions:
Test different incubation times and temperatures
Examine if longer primary antibody incubation improves consistency
Optimize secondary antibody parameters independently
Enhance blocking and washing procedures:
Test alternative blocking reagents to reduce background
Increase washing stringency to improve signal-to-noise ratio
Consider different buffer compositions to stabilize antibody-antigen interactions
Implement epitope retrieval optimization:
For IHC applications, test different antigen retrieval methods
Adjust retrieval duration and temperature conditions
Consider dual retrieval approaches for challenging samples
To rigorously validate ADAL-1 antibody specificity, researchers should implement these methodological approaches:
Genetic validation:
Test antibody on samples from ADAL knockout models
Examine samples with ADAL knockdown via siRNA/shRNA
Use CRISPR-Cas9 edited cell lines with ADAL modifications
Peptide competition assays:
Pre-incubate antibody with increasing concentrations of immunizing peptide
Observe dose-dependent reduction in signal
Include irrelevant peptide controls to confirm specificity
Orthogonal detection methods:
Compare antibody results with orthogonal techniques (mass spectrometry)
Correlate protein detection with mRNA expression data
Verify cellular/tissue distribution patterns match known biology
Immunoprecipitation followed by mass spectrometry:
Perform IP using ADAL-1 antibody
Analyze precipitated proteins by mass spectrometry
Confirm ADAL protein as the predominant target
Cross-reactivity assessment:
Test against closely related family members (other adenosine deaminases)
Evaluate performance across multiple species
Document any unexpected cross-reactivity patterns
ADAL-1 antibody offers valuable methodological approaches for investigating enzyme-substrate interactions of the adenosine deaminase-like protein. Researchers can:
Implement co-immunoprecipitation studies:
Use ADAL-1 antibody to pull down ADAL protein complexes
Identify interaction partners through western blotting or mass spectrometry
Analyze how substrate binding affects complex formation
Develop activity-based enzyme assays:
Employ ADAL-1 antibody to capture the enzyme from complex mixtures
Measure enzymatic activity on N6-methyl-AMP substrate
Analyze how antibody binding affects catalytic function
Perform conformational change studies:
Use ADAL-1 antibody in combination with proteolytic fingerprinting
Detect substrate-induced conformational changes
Map regions protected from proteolysis upon substrate binding
Analyze post-translational modifications:
Combine ADAL-1 antibody with phospho-specific or other PTM antibodies
Determine how PTMs affect substrate recognition and catalysis
Track dynamic modifications during enzyme-substrate interactions
Conduct structure-function relationship studies:
Use epitope-specific antibodies to block particular domains
Correlate domain accessibility with enzymatic function
Map critical regions for substrate recognition and processing
When incorporating ADAL-1 antibody into clinical research, investigators should address these methodological considerations:
Assay validation for clinical samples:
Establish reproducibility across different patient cohorts
Develop standardized protocols suitable for clinical specimens
Determine reference ranges in healthy versus disease states
Sample preparation optimization:
Evaluate compatibility with various clinical sample types (serum, plasma, tissue)
Standardize collection, processing, and storage procedures
Assess potential interfering substances in clinical specimens
Regulatory compliance:
Document validation parameters according to regulatory guidelines
Consider FDA/EMA requirements if developing diagnostic applications
Implement quality control systems appropriate for clinical research
Clinical correlation studies:
Design studies to correlate ADAL expression/activity with clinical outcomes
Incorporate appropriate disease controls and matched healthy samples
Consider longitudinal sampling to track changes over disease course
Data interpretation in clinical context:
Establish clinical decision thresholds and reference ranges
Analyze results in context of other clinical parameters
Implement blinded assessment procedures to minimize bias
ADAL-1 antibody provides powerful tools for elucidating ADAL's role in enzymatic pathways through these methodological approaches:
Pathway analysis through protein complex identification:
Use ADAL-1 antibody in proximity ligation assays to detect in situ interactions
Identify pathway components through co-immunoprecipitation followed by proteomics
Map dynamic changes in protein interactions under different cellular conditions
Subcellular localization studies:
Functional inhibition experiments:
Use ADAL-1 antibody to block specific domains
Analyze pathway perturbations following inhibition
Correlate functional outcomes with biochemical changes
Temporal dynamics investigations:
Apply ADAL-1 antibody in time-course experiments
Track expression and activity changes following pathway stimulation
Identify regulatory feedback mechanisms
Cross-talk analysis with related enzymatic systems:
Compare ADAL activity with other adenosine deaminases
Investigate compensatory mechanisms upon ADAL inhibition
Analyze effects of pathway modulators on ADAL expression and function
Integration of ADAL-1 antibody with single-cell technologies offers powerful new research capabilities. Methodologically, researchers should:
Optimize antibody parameters for single-cell applications:
Test different fixation and permeabilization protocols compatible with single-cell retention
Determine optimal concentrations that maximize signal while minimizing background
Evaluate compatibility with multiplexed antibody panels
Adapt for mass cytometry (CyTOF) applications:
Conjugate ADAL-1 antibody with rare earth metals
Validate metal-conjugated antibody performance against standard methods
Incorporate into multiplexed panels with minimal signal overlap
Implement in spatial transcriptomics platforms:
Combine ADAL-1 antibody staining with spatial transcriptomics methods
Correlate protein expression with transcript localization
Develop computational approaches to integrate protein and RNA data
Apply to microfluidic-based single-cell proteomics:
Adapt ADAL-1 antibody for microfluidic antibody capture systems
Validate sensitivity at single-cell resolution
Develop quantification standards for absolute protein measurement
Incorporate into live-cell imaging systems:
Use fluorescently labeled ADAL-1 antibody fragments for live-cell applications
Monitor dynamic changes in protein localization and abundance
Correlate with functional readouts in real-time
When combining ADAL-1 antibody with CRISPR-based technologies, researchers should methodologically address:
Validation of gene editing efficiency:
Use ADAL-1 antibody to quantify protein reduction following CRISPR knockout
Establish quantitative relationships between genomic modification and protein levels
Compare temporal dynamics of mRNA versus protein reduction
Phenotypic characterization:
Apply ADAL-1 antibody to analyze cellular phenotypes in edited cells
Track protein expression in clonal populations versus mixed edited pools
Correlate protein levels with functional readouts
Domain-specific functional analysis:
Design CRISPR strategies to target specific protein domains
Use ADAL-1 antibody to verify truncated protein expression
Analyze domain-specific functions through antibody detection of modified proteins
Rescue experiments:
Confirm specificity of CRISPR effects through rescue expression
Use ADAL-1 antibody to verify appropriate expression of rescue constructs
Quantify restoration of protein levels in correlation with functional rescue
Off-target effect assessment:
Examine potential alterations in related protein family members
Implement proteome-wide analysis in conjunction with targeted antibody detection
Correlate phenotypic changes with specific protein alterations
Emerging antibody engineering technologies will expand ADAL-1 antibody capabilities through:
Development of site-specific conjugation methods:
Engineer ADAL-1 antibody with precisely positioned conjugation sites
Improve orientation control for surface immobilization applications
Enhance performance in biosensor and diagnostic platforms
Antibody fragment adaptation:
Generate Fab, scFv, or nanobody formats of ADAL-1 antibody
Improve tissue penetration for in vivo applications
Reduce non-specific binding while maintaining specificity
Bispecific antibody development:
Create bispecific formats targeting ADAL and interacting proteins
Enable simultaneous detection of pathway components
Facilitate pull-down of protein complexes in their native state
Incorporation of environmentally responsive elements:
Develop pH-sensitive or protease-activated ADAL-1 antibody variants
Enable conditional binding in specific cellular compartments
Create activity-based sensing capabilities
Integration with synthetic biology approaches:
Combine ADAL-1 antibody with engineered cellular circuits
Develop antibody-based feedback control systems
Create synthetic regulatory networks responsive to ADAL protein levels or activity