The provided sources ( – ) include extensive data on antibody structure, therapeutic applications, and commercial products but lack any reference to "PROLM25." Key highlights from these sources include:
LSBio’s Prominin 2 (PROM2) antibody (LS-A9927), targeting a transmembrane glycoprotein involved in cancer and stem cell biology .
Structural insights into IgG antibodies, including heavy/light chains, Fab/Fc regions, and hinge flexibility .
Clinical applications of monoclonal antibodies, such as rituximab in autoimmune diseases and SARS-CoV-2 neutralizing antibodies .
Therapeutic antibody databases listing FDA-approved agents like margetuximab and necitumumab .
None of these sources mention "PROLM25," and no cross-referenced identifiers (e.g., UniProt codes, CAS numbers) align with this designation.
Typographical error: "PROLM25" may be a misspelling of PROM2 (Prominin 2), a validated target with antibodies listed in source .
Proprietary name: The term could represent an internal identifier from a non-public research program or unpublished dataset.
| Parameter | Detail |
|---|---|
| Target | Prominin 2 (PROM2), a pentaspan membrane protein |
| Applications | Immunohistochemistry (IHC), cancer research |
| Format | Rabbit polyclonal, unconjugated |
| Catalog | LS-A9927-50 (50 µg, $395) |
UniGene: Os.7248
PROLM25 Antibody belongs to the family of antibodies targeting progranulin proteins, which are secreted proteins that act as key regulators of lysosomal function and growth factors involved in inflammation, wound healing, and cell proliferation . This antibody is designed for research applications involving human protein targets and can be utilized in various experimental contexts. Like other progranulin-targeting antibodies, PROLM25 recognizes specific epitopes within the propeptide domain region of the protein .
The PROLM25 Antibody has been validated for several research applications, including:
Enzyme-linked immunosorbent assays (ELISA)
Western blotting/immunoblotting
Immunoprecipitation (IP)
Immunofluorescence (IF) techniques
Potential applications in flow cytometry and multiplex imaging
When selecting this antibody for your research, verify the specific validation data for your intended application, as performance can vary between experimental contexts.
For optimal preservation of antibody activity:
Store at -20°C for long-term storage
Avoid repeated freeze-thaw cycles by aliquoting upon receipt
Keep working solutions at 4°C for short-term use (typically 1-2 weeks)
Protect from light if the antibody is conjugated to a fluorophore
Follow manufacturer recommendations for specific formulations, as carrier-free preparations may have different stability profiles than those containing BSA or other stabilizers
To locate comprehensive validation data:
Search specialized antibody data repositories that share validation and experimental results
Utilize antibody search engines to compare available data across vendors
Review target-specific repositories for information on progranulin antibodies
Check application-specific repositories (e.g., imaging repositories for IF/IHC applications)
Examine validation data in repositories specific to relevant disease models
These resources provide critical information to help determine if the antibody is suitable for your specific experimental system and conditions.
A methodologically sound experimental design should include:
Positive controls:
Known samples expressing the target protein
Recombinant target protein at known concentrations
Negative controls:
Samples with target protein knockdown/knockout
Isotype-matched irrelevant antibodies
Secondary antibody-only controls
Specificity controls:
These controls help validate results and troubleshoot potential issues with antibody specificity or experimental conditions.
Optimization strategy should follow a systematic approach:
Begin with manufacturer-recommended dilutions as a starting point
Perform titration experiments using 2-3 fold serial dilutions
For immunoblotting: Test 1:500 to 1:5000 dilutions
For immunofluorescence: Begin with 1:100 to 1:1000 dilutions
For ELISA: Create a standard curve using 1:100 to 1:10,000 dilutions
Evaluate signal-to-noise ratio at each concentration to determine optimal working dilution for your specific sample type and experimental conditions. Document optimization procedures thoroughly to ensure reproducibility across experiments .
Sample preparation should be tailored to both the antibody requirements and experimental application:
For cell/tissue lysates:
Use lysis buffers containing appropriate protease inhibitors
Determine if denaturing or non-denaturing conditions are optimal
Adjust protein concentration to 0.5-2 mg/ml for most applications
For immunohistochemistry/immunofluorescence:
Test multiple fixation methods (paraformaldehyde, methanol, acetone)
Optimize antigen retrieval methods (heat-induced vs. enzymatic)
Determine optimal blocking solutions to minimize background
For flow cytometry:
Evaluate cell permeabilization requirements if the epitope is intracellular
Test different fixation protocols to preserve epitope recognition
To systematically evaluate antibody specificity against related isoforms:
Perform immunoblotting against recombinant proteins of all known isoforms
Test samples from knockdown/knockout models for residual signal
Conduct epitope mapping to identify specific binding regions
Employ mass spectrometry to identify all proteins captured in immunoprecipitation
Compare reactivity patterns with other antibodies targeting the same protein through different epitopes
This comprehensive approach helps identify potential cross-reactivity issues that could confound experimental results .
To address epitope masking challenges:
Sample preparation modifications:
Test multiple extraction buffers with varying detergent compositions
Optimize denaturation conditions (temperature, reducing agents)
Evaluate different antigen retrieval methods for fixed samples
Experimental approaches:
Consider using antibody combinations targeting different epitopes
Test both native and denaturing conditions in parallel
Employ epitope unmasking techniques specific to your sample type
Analytical considerations:
When evaluating cross-species reactivity:
Verify sequence homology of the target epitope across species of interest
Perform side-by-side validation using positive control samples from each species
Adjust experimental conditions (buffer composition, incubation time/temperature) for optimal performance with each species
Consider epitope conservation analysis to predict potential cross-reactivity
Document species-specific optimization parameters to ensure reproducibility
If working with non-validated species, additional validation steps should be performed before proceeding with full experiments .
To address potential artifacts in imaging applications:
Experimental design considerations:
Include fluorophore-only controls to assess background fluorescence
Test multiple fixation and permeabilization methods
Compare staining patterns between living and fixed cells when possible
Advanced validation approaches:
Perform super-resolution microscopy to confirm subcellular localization
Use complementary techniques like proximity ligation assays
Conduct antibody competition assays with unlabeled antibody
Image analysis strategies:
To address potential variability between antibody lots:
Proactive assessment:
Request certificate of analysis with lot-specific validation data
Perform side-by-side testing of old and new lots on identical samples
Quantify differences in sensitivity and specificity between lots
Management strategies:
Maintain detailed records of lot numbers used for each experiment
Purchase larger quantities of a single lot for long-term studies
Develop standardized validation protocols for testing new lots
Experimental adjustments:
When facing contradictory results:
Systematic troubleshooting:
Verify antibody specificity using knockout/knockdown controls
Compare results with alternative antibodies targeting the same protein
Evaluate potential interference from buffer components or blocking agents
Technical considerations:
Assess if differences relate to native vs. denatured protein detection
Examine epitope accessibility across different sample preparations
Consider post-translational modifications that might affect epitope recognition
Integrative analysis:
For multiplexed experimental validation:
Compatibility assessment:
Test for spectral overlap if using fluorescent conjugates
Evaluate antibody performance in multiplexing buffers
Assess potential cross-reactivity with other antibodies in the panel
Optimization strategies:
Determine optimal antibody concentration for balanced signal across targets
Establish appropriate sequential staining protocols if needed
Validate signal specificity with appropriate single-stain controls
Analysis considerations:
For integration into single-cell technologies:
Sample preparation considerations:
Optimize fixation protocols compatible with single-cell techniques
Evaluate potential impact of dissociation methods on epitope integrity
Develop protocols minimizing non-specific binding in low-input samples
Technology-specific adaptations:
For flow cytometry/mass cytometry: Optimize staining conditions for suspension cells
For imaging mass cytometry: Validate metal-conjugated antibody performance
For single-cell protein analysis: Test compatibility with microfluidic systems
Data analysis approaches:
Lessons from therapeutic antibody combinations applicable to research contexts:
Epitope mapping considerations:
Select antibodies targeting non-overlapping epitopes
Verify simultaneous binding capability through competition assays
Evaluate potential cooperative binding effects
Resistance mitigation strategies:
Use antibody combinations targeting different domains/epitopes
Consider triple antibody combinations for enhanced coverage
Monitor for emergence of escape variants during longitudinal studies
Experimental design approaches:
Advanced computational methods for antibody data analysis:
Machine learning applications:
Apply image analysis algorithms for automated quantification
Develop predictive models for antibody binding affinity
Use clustering approaches to identify patterns in complex datasets
Bioinformatic integration:
Map epitopes to protein structural models
Predict potential cross-reactivity based on sequence homology
Integrate antibody-based data with other -omics datasets
Quantitative analysis: