SPCC1020.03 Antibody

What is SPCC1020.03 and why is it significant in research?

SPCC1020.03 is an uncharacterized metal transporter protein (UniProt ID: O59758) from Schizosaccharomyces pombe (fission yeast). It consists of 397 amino acids and functions as a predicted mitochondrial iron ion transporter . The protein belongs to the metal transporter family and appears to be involved in iron homeostasis, a critical cellular process.

The significance of this protein lies in its role within the broader context of metal transport mechanisms. SPCC1020.03 expression is regulated by iron availability and functions within the cellular network that maintains metal ion homeostasis . Understanding this protein contributes to fundamental knowledge about how eukaryotic cells coordinate metal transport and metabolism.

What applications can SPCC1020.03 antibodies be used for?

SPCC1020.03 antibodies have been validated for the following applications:

The most robust and well-established application is Western blotting, where these antibodies can detect the native protein in S. pombe cell lysates as well as recombinant versions of the protein .

What are the recommended storage conditions for SPCC1020.03 antibodies?

To maintain antibody integrity and functionality, follow these evidence-based storage recommendations:

Research has shown that repeated freeze-thaw cycles significantly decrease antibody activity. Aliquoting the antibody upon receipt is strongly recommended to maintain consistent performance across experiments .

How can I validate the specificity of SPCC1020.03 antibodies?

Validation of SPCC1020.03 antibody specificity should employ multiple complementary approaches following the "five pillars" framework for enhanced antibody validation:

Research indicates that antibodies validated using genetic approaches (knockdown/knockout) show significantly higher specificity (89%) compared to those validated using orthogonal approaches alone (80%) .

For S. pombe proteins like SPCC1020.03, creating knockout strains through homologous recombination provides the most rigorous validation approach, though this requires specialized expertise in fission yeast genetics .

What is the optimal protocol for using SPCC1020.03 antibodies in co-immunoprecipitation experiments?

For co-immunoprecipitation of SPCC1020.03 and its interaction partners in S. pombe, follow this evidence-based protocol:

Sample Preparation:

• Cultivate S. pombe cells to mid-log phase (OD595 = 0.5-0.8) in appropriate media

• Harvest cells by centrifugation (3,000g, 5 min, 4°C)

• Wash cells twice with cold water

• Resuspend in lysis buffer containing:

  • 50 mM HEPES-KOH, pH 7.5

  • 140 mM NaCl

  • 1 mM EDTA

  • 1% Triton X-100

  • 0.1% Na-deoxycholate

  • Protease inhibitor cocktail

  • Phosphatase inhibitors (if studying phosphorylation)

Immunoprecipitation:

• Use 900 μL normalized cell extract per immunoprecipitation

• Add 2-5 μg of SPCC1020.03 antibody

• Rotate samples for 1-2 hours at 4°C

• Add 30 μL protein A agarose slurry (20 μL packed beads)

• Continue rotation for 1 hour at 4°C

• Wash beads 4 times with lysis buffer

• Elute proteins by adding 50 μL of 2× Laemmli buffer and heating at 95°C for 5 minutes

Research on S. pombe proteins indicates that this protocol has successfully identified interaction partners for multiple metal transporters, including those in the same family as SPCC1020.03 . Critical controls should include:

• A pre-immune serum or IgG control

• Input sample (typically 5-10% of lysate used for IP)

• When possible, a SPCC1020.03 knockout strain as negative control

How do I distinguish between specific and non-specific binding in SPCC1020.03 antibody experiments?

Distinguishing specific from non-specific binding requires systematic analysis and proper controls:

Research on S. pombe proteins shows that common cross-reactivity occurs with related metal transporters. Specifically for SPCC1020.03, potential cross-reactivity has been observed with SPBC359.05 due to sequence similarity in certain domains .

Studies indicate that approximately 35% of unreproducible research may be attributed to reagent issues, including antibody cross-reactivity . Preincubation of antibodies with recombinant SPCC1020.03 protein (competitive inhibition) can significantly reduce non-specific binding in Western blot applications.

What controls should I include when using SPCC1020.03 antibodies?

Proper experimental controls are essential for generating reliable data with SPCC1020.03 antibodies:

Research has demonstrated that approximately 20% of commercial antibodies fail to recognize their intended targets , making proper controls critical for result interpretation. For S. pombe proteins like SPCC1020.03, using deletion strains as negative controls provides the most definitive validation .

How should I optimize SPCC1020.03 antibody dilutions for Western blot?

Systematic optimization of SPCC1020.03 antibody concentrations is crucial for obtaining specific signal with minimal background:

Recommended Optimization Protocol:

• Initial Titration Matrix:

• Blocking Optimization:

  • Test 5% non-fat milk vs. 3% BSA in TBS-T

  • For phospho-specific antibodies, BSA is recommended over milk

• Fine-tuning Parameters:

  • Incubation time: 1 hour at room temperature vs. overnight at 4°C

  • Washing stringency: 3 × 5 min vs. 5 × 5 min washes

  • Membrane type: PVDF vs. nitrocellulose

Research on S. pombe proteins indicates that the optimal signal-to-noise ratio for many antibodies targeting metal transporters is achieved at 1:1,000 dilution with overnight incubation at 4°C . The dilution providing clear specific signal with minimal background should be selected.

For SPCC1020.03 specifically, empirical testing shows that a 1:1,000 dilution typically yields optimal results, though this may vary with different antibody lots and experimental conditions.

What cell lines or strains are best for studying SPCC1020.03 expression and function?

Selection of appropriate experimental systems is critical for SPCC1020.03 research:

Research indicates that SPCC1020.03 expression is tightly regulated by iron availability, with increased expression under iron-deficient conditions . For studying metal transport function, the S. pombe Δfep1 strain provides a useful background as it constitutively expresses SPCC1020.03 and other iron-regulated genes regardless of iron status.

What are common problems with SPCC1020.03 antibodies and how can I solve them?

The most critical factor for SPCC1020.03 detection is understanding its expression pattern. Research indicates that this protein is upregulated under iron-deficient conditions, so experimental design should account for this regulation .

How can I quantitatively analyze SPCC1020.03 expression data?

For reliable quantification of SPCC1020.03 protein levels:

• Normalization Approaches:

• Statistical Analysis:

  • Perform at least three biological replicates

  • Use appropriate statistical tests (t-test for two conditions, ANOVA for multiple conditions)

  • Report both p-values and effect sizes

  • Consider power analysis to determine sample size

Research on quantitative Western blotting indicates that total protein normalization reduces technical variation by approximately 30% compared to housekeeping protein normalization . For SPCC1020.03 specifically, data from S. pombe studies suggests that normalizing to total protein is particularly important when studying metal stresses, as traditional housekeeping genes may be affected by these conditions.

How does SPCC1020.03 antibody performance compare in different experimental applications?

Comparative performance analysis across applications helps optimize experimental design:

Research indicates that antibody performance varies significantly across applications, with only 30-50% of antibodies validated for one application performing well in others . For SPCC1020.03 specifically, Western blot remains the most thoroughly validated and reliable application .

How can I use SPCC1020.03 antibodies to study protein-protein interactions in S. pombe?

Several advanced methodologies can identify SPCC1020.03 interaction partners:

Research on metal transporters in S. pombe has shown that coupling immunoprecipitation with mass spectrometry (IP-MS) provides the most comprehensive identification of protein interaction networks . For SPCC1020.03 specifically, cross-linking approaches may be necessary to capture transient interactions with other components of the iron transport machinery.

What advanced analytical techniques can I combine with SPCC1020.03 antibodies?

Integration of antibody-based detection with other analytical platforms enhances research insights:

Research indicates that combining antibody-based detection with orthogonal approaches significantly increases confidence in results and provides complementary insights . For metal transporters like SPCC1020.03, coupling immunolocalization with functional assays (e.g., metal uptake measurements) is particularly valuable for correlating localization with activity.

How can I design experiments to study SPCC1020.03 function under different metal stress conditions?

Experimental design for studying SPCC1020.03 regulation and function:

Research on SPCC1020.03 and related transporters indicates complex regulation by metal availability, with evidence suggesting roles in both uptake and detoxification pathways . Experimental designs should systematically probe these functions under controlled conditions with appropriate genetic and chemical perturbations.