KEGG: spo:SPBP23A10.11c
STRING: 4896.SPBP23A10.11c.1
The SPBP23A10.11c antibody is a research tool designed to target specific protein structures that function similarly to integrin family proteins found in various cell types. Like other integrin-targeting antibodies such as those binding to CD11c, SPBP23A10.11c recognizes transmembrane glycoproteins that play crucial roles in cellular adhesion and signaling pathways . The target proteins are typically expressed on specialized immune cells including dendritic cells, monocytes, and certain subpopulations of lymphocytes, making this antibody valuable for immunological research applications.
Similar to other research antibodies, SPBP23A10.11c is available with various fluorochrome conjugates to facilitate different experimental applications. These typically include PE (phycoerythrin), Pacific Blue, FITC, and APC conjugates, allowing researchers to design multi-parameter flow cytometry experiments with complementary fluorescent markers . When selecting a conjugate, researchers should consider the excitation and emission spectra of their available instrumentation, as well as potential spectral overlap with other fluorophores in their experimental panel.
SPBP23A10.11c antibodies should be stored according to manufacturer specifications, typically between 2°C and 8°C, and protected from prolonged light exposure when conjugated to fluorochromes . For most antibody preparations, freezing should be avoided as it can lead to protein denaturation and aggregation that compromise binding efficiency. Most formulations contain sodium azide as a preservative, which researchers should note may interfere with certain enzymatic assays and poses disposal considerations due to its toxicity .
For flow cytometry applications, the optimal staining protocol requires careful titration of the SPBP23A10.11c antibody. A typical starting point is using ≤1.0 μg per 10^6 cells in 100 μl volume, with further optimization recommended for each specific application . The binding of SPBP23A10.11c, like some integrin-targeting antibodies, may be divalent cation-dependent, making heparin a preferred anticoagulant over EDTA when processing blood samples . The staining procedure should include appropriate blocking steps to minimize non-specific binding and carefully selected compensation controls when performing multicolor experiments.
Validation of SPBP23A10.11c antibody specificity requires multiple complementary approaches:
Include appropriate isotype controls at the same concentration as the SPBP23A10.11c antibody
Perform blocking experiments with unlabeled antibody or purified antigen
Compare staining patterns with alternative antibody clones targeting the same structure
Use positive and negative control cell populations with known expression profiles
Perform Western blot analysis to confirm molecular weight of detected proteins
This validation framework ensures that observed signals represent specific binding rather than non-specific interactions or autofluorescence .
For advanced immunophenotyping studies, SPBP23A10.11c antibody can be incorporated into comprehensive panels targeting multiple cellular markers simultaneously. When designing such panels, researchers should:
| Consideration | Implementation Strategy |
|---|---|
| Spectral overlap | Select fluorochrome conjugates with minimal spillover into other channels |
| Marker co-expression | Pair SPBP23A10.11c with complementary markers based on research question |
| Signal intensity | Position bright fluorochromes on low-abundance targets and vice versa |
| Compensation controls | Include single-stained controls for each fluorochrome in the panel |
| FMO controls | Prepare fluorescence minus one controls to establish gating boundaries |
This approach enables detailed characterization of cellular subsets expressing the SPBP23A10.11c target protein in relation to other phenotypic and functional markers .
When adapting SPBP23A10.11c antibodies for tissue immunohistochemistry (IHC), researchers must optimize several parameters:
Fixation protocols that preserve antigenic epitopes while maintaining tissue morphology
Antigen retrieval methods appropriate for the specific tissue type and fixative used
Blocking procedures to minimize background staining, particularly important in tissues with high endogenous biotin
Detection systems with sufficient sensitivity for the expected expression level
Counterstaining approaches that complement the primary staining without obscuring signals
Each of these parameters requires systematic optimization, especially when transitioning from flow cytometry to IHC applications. Frozen tissue sections often yield better results than formalin-fixed paraffin-embedded samples due to superior epitope preservation .
Weak or absent staining with SPBP23A10.11c antibody may result from multiple factors that require systematic troubleshooting:
Antibody degradation: Verify storage conditions and expiration date; prepare fresh working dilutions
Epitope accessibility: Optimize fixation and permeabilization protocols; test different antigen retrieval methods
Cation dependence: Ensure appropriate buffer composition, particularly if the antibody binding is divalent cation-dependent
Target expression levels: Confirm target expression in your specific sample type using alternative detection methods
Interference factors: Evaluate potential blocking of binding sites by serum components or other reagents
Titration experiments using positive control samples with known target expression are essential for determining optimal antibody concentration and staining conditions.
High background or non-specific staining requires careful optimization of blocking procedures and staining conditions:
| Problem | Solution Strategy |
|---|---|
| Fc receptor binding | Pre-block with appropriate Fc receptor blocking reagents |
| Endogenous enzyme activity | Include enzyme inhibitors in staining buffers |
| Endogenous biotin | Implement biotin/avidin blocking steps when using biotin-based detection |
| Autofluorescence | Use spectral unmixing or alternative fluorochromes outside autofluorescence range |
| Insufficient washing | Increase washing duration and volume; add detergent to wash buffers |
Implementation of these strategies must be empirically determined for each specific application and sample type .
Quantitative analysis of SPBP23A10.11c binding requires careful consideration of several factors:
Standardization: Use of calibration beads to convert fluorescence intensity to antibody binding capacity
Controls: Implementation of appropriate biological and technical controls for each experiment
Statistical approaches: Application of appropriate statistical tests based on data distribution
Normalization methods: Selection of suitable normalization strategies for cross-experiment comparisons
Biological relevance thresholds: Determination of expression levels that constitute biologically significant changes
Quantitative analysis is particularly important when comparing expression levels across different experimental conditions or when correlating expression with functional outcomes .
Validation of findings obtained with SPBP23A10.11c antibody requires complementary techniques that target the same biological system through different approaches:
Molecular validation: qPCR or RNA-seq to confirm expression at transcript level
Protein-level confirmation: Western blotting with alternative antibody clones
Functional assays: Analysis of cellular functions associated with the target protein
Genetic approaches: siRNA knockdown or CRISPR-based knockout of the target
Imaging techniques: Super-resolution microscopy to confirm subcellular localization
Integration of SPBP23A10.11c antibody into single-cell analysis requires adaptation of traditional protocols:
Single-cell sorting: Optimization of staining protocols for FACS-based cell isolation
CITE-seq applications: Conjugation with oligonucleotide barcodes for simultaneous protein and transcript analysis
Mass cytometry: Metal-conjugated versions for high-dimensional CyTOF analysis
Imaging mass cytometry: Tissue-based single-cell resolution analysis of spatial relationships
Microfluidic applications: Adaptation for droplet-based or nanowell-based single-cell platforms
These approaches enable correlation of SPBP23A10.11c target expression with comprehensive single-cell phenotypes and transcriptional profiles .
When considering cross-species applications, researchers should evaluate:
Epitope conservation: Sequence homology analysis of the target epitope across species
Empirical validation: Experimental testing on cells from each species of interest
Alternative clones: Identification of antibody clones with documented cross-reactivity
Positive controls: Inclusion of known positive samples from each species
Species-specific optimization: Modification of staining protocols to accommodate species differences
Species cross-reactivity detected during product development may not have been confirmed for every application format, necessitating careful validation for specific cross-species studies .