MAK (Ab-159) Antibody is a polyclonal antibody that specifically recognizes and binds to the male germ cell-associated kinase (MAK) protein. MAK is a serine/threonine protein kinase (EC 2.7.11.22) involved in signal transduction pathways. The antibody is designed to detect endogenous levels of total MAK protein .
The target protein, MAK, has the following characteristics:
UniProtID: P20794
Molecular Weight: Approximately 66,345 Da or 70kDa (observed)
Aliases: Male germ cell-associated kinase, Serine/threonine-protein kinase MAK, RP62, dJ417M14.2
The MAK (Ab-159) Antibody has been validated for specific research applications with recommended dilutions:
| Application | Validated | Recommended Dilution |
|---|---|---|
| Western Blot (WB) | Yes | 1:500-1:3000 |
| ELISA | Yes | As specified in protocols |
| IHC | No | Not validated |
| ICC/IF | No | Not validated |
The antibody has been specifically optimized for Western blotting applications, where it can detect endogenous levels of total MAK protein . Scientific validation data shows successful detection of MAK in extracts from K562 cells .
The MAK (Ab-159) Antibody has the following key properties:
| Property | Specification |
|---|---|
| Host Species | Rabbit |
| Clonality | Polyclonal |
| Isotype | IgG |
| Immunogen | Synthesized peptide derived from internal region of human MAK |
| Conjugate | Non-conjugated |
| Purification Method | Affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen |
| Concentration | 1 mg/ml |
| Form | Liquid |
| Buffer Composition | Rabbit IgG in phosphate buffered saline (without Mg²⁺ and Ca²⁺), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol |
These properties determine the antibody's binding characteristics and stability in various experimental conditions .
Proper storage and handling are crucial for maintaining antibody activity:
Avoid repeated freeze-thaw cycles to prevent degradation of the antibody
When working with the antibody, keep it on ice
For long-term storage, consider making small aliquots to minimize freeze-thaw cycles
The inclusion of 50% glycerol in the formulation helps maintain stability during freeze-thaw cycles
Before use, centrifuge the antibody vial briefly to ensure collection of all material
These storage recommendations help preserve antibody activity and specificity for extended periods.
The species reactivity of MAK (Ab-159) Antibody varies based on the supplier. Different versions of this antibody show the following reactivity patterns:
| Supplier | Confirmed Species Reactivity |
|---|---|
| AFG Scientific | Human only |
| MyBioSource | Human, Mouse, Rat |
| Antibodies.com | Human only |
When planning cross-species experiments, researchers should verify reactivity claims with the specific supplier and consider performing validation experiments in their model system of interest .
There are important functional differences between the total protein-detecting MAK (Ab-159) Antibody and phospho-specific alternatives:
| Characteristic | MAK (Ab-159) Antibody | MAK (phospho Tyr159) Antibody |
|---|---|---|
| Detection Target | Total MAK protein regardless of phosphorylation state | Only MAK when phosphorylated at Tyr159 |
| Applications | Primarily WB, ELISA | WB, ELISA, IF (depending on supplier) |
| Immunogen | Peptide derived from internal region of human MAK | Synthetic peptide around Tyr159 phosphorylation site |
| Research Use | Quantifying total MAK expression | Studying activation state and signaling pathways |
| Control Requirements | Standard loading controls | Additional phosphorylation state controls |
For comprehensive signaling pathway studies, researchers often use both antibody types in parallel - the phospho-specific antibody to detect activated MAK and the total protein antibody (like MAK Ab-159) to normalize for total protein expression levels .
For optimal Western blotting with MAK (Ab-159) Antibody, consider these methodological aspects:
Sample Preparation:
Use appropriate lysis buffers with protease inhibitors
Denature samples completely at 95-100°C for 5 minutes in reducing sample buffer
Load equal amounts of protein (15-30μg) per lane
Gel Selection and Transfer:
Use 10-12% SDS-PAGE gels given MAK's molecular weight (approximately 70kDa)
Ensure complete transfer to PVDF or nitrocellulose membrane
Blocking and Antibody Incubation:
Block with 5% non-fat dry milk or BSA in TBST
Use MAK (Ab-159) Antibody at 1:500-1:3000 dilution
Incubate with primary antibody overnight at 4°C
Controls and Validation:
Include positive control lysates (e.g., K562 cells shown to express MAK)
Consider siRNA/shRNA knockdown controls to validate specificity
Use appropriate HRP-conjugated secondary antibody against rabbit IgG
Detection and Analysis:
Develop using enhanced chemiluminescence (ECL) substrates
Quantify band intensity relative to loading controls
This experimental design helps ensure specific detection and accurate quantification of MAK protein levels .
Genetic Approaches:
Compare signals in wild-type versus MAK knockout/knockdown samples
Overexpress MAK in low-expressing cell lines to confirm band identity
Use CRISPR-Cas9 to generate MAK-deficient controls
Biochemical Validation:
Perform immunoprecipitation followed by mass spectrometry
Confirm molecular weight matches predicted size for MAK (~70kDa)
Compete binding with immunizing peptide when available
Cross-Platform Confirmation:
Compare results with alternative MAK antibodies targeting different epitopes
Correlate protein detection with mRNA expression data
Use orthogonal methods like mass spectrometry to confirm presence of MAK
Controls in Experimental Setting:
Include tissue/cells known to express or lack MAK expression
Test antibody performance in different sample preparation conditions
Systematic validation ensures experimental observations reflect true MAK biology rather than antibody artifacts .
When utilizing MAK (Ab-159) Antibody in single-subject experimental designs (SSEDs), researchers should address these methodological considerations:
These considerations help maximize internal and external validity when using MAK (Ab-159) Antibody in single-subject research designs .
When integrating antibody-based detection with structural analysis, conflicting results may emerge. To resolve these discrepancies:
Understanding Method Limitations:
Recognize that antibodies detect specific epitopes while structural methods provide holistic protein information
MAK (Ab-159) Antibody targets a specific internal epitope that may be inaccessible in certain protein conformations
Consider that computational predictions (e.g., AlphaFold Multimer) sometimes fail to accurately model antibody-antigen interactions
Complementary Approaches:
Use X-ray crystallography to definitively determine epitope-antibody interactions
Compare experimental structures with computational predictions
Implement multiple detection methods targeting different MAK regions
Reconciliation Strategies:
Test whether sample preparation affects epitope accessibility (native vs. denatured conditions)
Identify potential post-translational modifications that might affect antibody recognition
Consider protein-protein interactions that could mask epitopes
Integrated Analysis:
Develop a concordance model that accommodates both structural and immunological data
Weight evidence based on methodological strengths of each approach
Document methodological differences that might explain discrepancies
As demonstrated in structural immunology studies, experimental validation remains essential even as computational methods advance .
When designing co-localization experiments with MAK (Ab-159) Antibody and other antibodies:
Antibody Compatibility:
Ensure primary antibodies are raised in different host species to avoid cross-reactivity of secondary antibodies
If using multiple rabbit antibodies, consider direct conjugation or sequential staining protocols
Test for potential cross-reactivity between antibodies in control experiments
Optimizing Multiplex Detection:
Titrate each antibody individually before combining in multiplex assays
Consider the use of Fab fragments or monovalent antibodies to reduce steric hindrance
Validate signal specificity with appropriate controls (single stain, secondary-only, blocking peptides)
Technical Considerations:
Select fluorophores with minimal spectral overlap
Account for potential differences in fixation/permeabilization requirements
Implement appropriate antigen retrieval methods if needed
Analysis Approaches:
Use quantitative co-localization metrics (Pearson's coefficient, Manders' coefficient)
Implement appropriate thresholding methods
Consider 3D analysis when appropriate
These considerations help ensure valid interpretation of co-localization data between MAK and other proteins of interest .
While MAK (Ab-159) Antibody is primarily a research tool rather than a therapeutic candidate, understanding its properties in comparison to therapeutic antibodies provides valuable insights:
Structural Considerations:
Research-grade polyclonal antibodies like MAK (Ab-159) contain heterogeneous antibody populations
Therapeutic antibodies require monoclonal production with defined epitope binding
MAK (Ab-159)'s rabbit IgG isotype differs from therapeutic human(ized) antibodies
Fc-Mediated Functions:
Different IgG subclasses exhibit varying effector functions
Therapeutic antibodies are engineered with specific Fc regions (e.g., LALA mutations) to modulate effector functions
Research antibodies like MAK (Ab-159) have not been optimized for in vivo activity
Methodological Applications:
MAK (Ab-159) serves as a detection tool in model systems studying antibody-antigen interactions
Can be used to validate epitope accessibility in developing therapeutic candidates
Helps establish expression patterns of target proteins in disease models
Development Pipeline Integration:
Research antibodies provide preliminary target validation
Structural insights from research antibodies inform therapeutic antibody design
Epitope mapping with research antibodies guides optimization of therapeutic candidates
This comparison highlights how research antibodies like MAK (Ab-159) contribute to the broader therapeutic antibody development process .