CLPR1 Antibody

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Description

Introduction to CLPR1 Antibody

CLPR1 (Clp protease regulatory subunit 1) is a component of the ATP-dependent Clp protease complex in chloroplasts, responsible for protein degradation and quality control. The CLPR1 antibody (e.g., AS16 4054 from Agrisera) is a polyclonal antibody developed to study this protein’s role in plant physiology and stress responses .

Antibody Characteristics

Key specifications of the CLPR1 antibody are summarized below:

ParameterDetails
Host SpeciesRabbit
ClonalityPolyclonal
ImmunogenBSA-conjugated peptide from Arabidopsis thaliana ClpR1 (UniProt: Q9XJ35)
ReactivityConfirmed: Arabidopsis thaliana
Predicted: Spinach, carrot, citrus
ApplicationsWestern blot (WB)
Recommended Dilution1:500 (WB)
Observed Molecular Weight28 kDa (apparent) / 42 kDa (expected)
StorageLyophilized, stable at -20°C after reconstitution

Protein Localization and Expression

The antibody has been used to detect ClpR1 in chloroplast lysates, confirming its role in stromal protein complexes. Studies in Arabidopsis reveal ClpR1’s involvement in:

  • Degradation of misfolded proteins under heat stress.

  • Regulation of chloroplast development during light-to-dark transitions .

Functional Studies

Knockdown experiments using this antibody demonstrated that ClpR1 deficiency leads to:

  • Accumulation of damaged Photosystem II (PSII) subunits.

  • Delayed senescence due to impaired proteolytic activity .

Stress Adaptation

ClpR1 is upregulated during oxidative stress, facilitating the removal of oxidized proteins in chloroplasts.

Developmental Regulation

Mutants lacking ClpR1 exhibit stunted growth and chlorosis, linking the protein to chloroplast maturation .

Limitations and Future Directions

  • Species Specificity: Reactivity is confirmed only in Arabidopsis; cross-reactivity in other species requires validation.

  • Mechanistic Insights: Further studies are needed to map ClpR1’s interaction partners within the Clp protease complex.

References

  1. Agrisera. (2023). Anti-ClpR1 Antibody (AS16 4054). Retrieved from Agrisera .

Product Specs

Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
Made-to-order (14-16 weeks)
Synonyms
CLPR1 antibody; NCLPP5 antibody; SVR2 antibody; At1g49970 antibody; F2J10.14 antibody; ATP-dependent Clp protease proteolytic subunit-related protein 1 antibody; chloroplastic antibody; ClpR1 antibody; Protein SUPPRESSOR OF VARIEGATION 2 antibody; nClpP5 antibody
Target Names
CLPR1
Uniprot No.

Target Background

Function
CLPR1 antibody is essential for chloroplast development and differentiation.
Gene References Into Functions
  1. Research indicates that ClpR1 activity is crucial for chloroplast development and differentiation. Its absence leads to delays in both processes. PMID: 17009084
  2. Studies demonstrate that the chloroplast Clp protease is primarily a constitutive enzyme responsible for degrading numerous stromal proteins. This feature likely explains its essential role in chloroplast function and plant viability. PMID: 18754756
Database Links

KEGG: ath:AT1G49970

STRING: 3702.AT1G49970.1

UniGene: At.23793

Protein Families
Peptidase S14 family
Subcellular Location
Plastid, chloroplast stroma.

Q&A

Experimental Design for CLPR1 Antibody Validation

Question: What experimental approaches can be used to validate the specificity and efficacy of a CLPR1 antibody in academic research settings? Answer: To validate a CLPR1 antibody, researchers can employ several methods:

  • Western Blot (WB): Use WB to assess the antibody's ability to detect CLPR1 protein in cell extracts. Optimize antibody dilution and ensure specificity by comparing signals in control and treated samples.

  • Immunofluorescence (IF): Perform IF to visualize CLPR1 localization within cells. This helps confirm the antibody's specificity and provides insights into protein distribution.

  • Co-immunoprecipitation (Co-IP): Conduct Co-IP to identify interacting proteins, further validating the antibody's specificity and exploring protein-protein interactions.

Data Contradiction Analysis in CLPR1 Antibody Studies

Question: How can researchers address discrepancies in data obtained using different CLPR1 antibodies or experimental conditions? Answer: Discrepancies can arise from variations in antibody specificity, experimental conditions, or sample preparation. To address these:

  • Cross-validation: Use multiple antibodies targeting different epitopes of CLPR1 to confirm findings.

  • Control Experiments: Include negative controls (e.g., non-specific IgG) and positive controls (e.g., known CLPR1-expressing samples) to validate results.

  • Data Normalization: Normalize data using housekeeping proteins or internal controls to account for experimental variability.

Advanced Research Questions: Exploring CLPR1 Function

Question: What advanced research strategies can be employed to investigate the functional role of CLPR1 in chloroplasts using CLPR1 antibodies? Answer: To delve deeper into CLPR1's role:

  • Protein-Protein Interaction Studies: Use Co-IP followed by mass spectrometry to identify CLPR1-interacting proteins, which can reveal its functional pathways.

  • Cellular Localization Studies: Employ super-resolution microscopy to precisely locate CLPR1 within chloroplasts, providing insights into its role in chloroplast biogenesis or function.

  • Functional Knockdown/Knockout Experiments: Utilize CRISPR-Cas9 or RNAi to knockdown/knockout CLPR1 and observe phenotypic changes, which can help elucidate its biological functions.

Methodological Considerations for CLPR1 Antibody Production

Question: What methodological considerations are crucial when producing and characterizing CLPR1 antibodies for research purposes? Answer: Key considerations include:

  • Immunogen Selection: Choose an immunogen that is highly specific to CLPR1 to ensure antibody specificity.

  • Antibody Screening: Screen multiple clones to select those with optimal specificity and affinity.

  • Characterization Techniques: Employ techniques like ELISA, WB, and IF to thoroughly characterize the antibody's performance.

Interpretation of CLPR1 Antibody Data in the Context of Chloroplast Function

Question: How can researchers interpret data from CLPR1 antibody experiments in the broader context of chloroplast biology? Answer: Interpretation should consider:

  • Chloroplast Development: Analyze how CLPR1 affects chloroplast biogenesis and development.

  • Protein Degradation Pathways: Investigate CLPR1's role in the Clp protease system, which is crucial for protein quality control in chloroplasts.

  • Stress Responses: Examine how CLPR1 contributes to chloroplast stress responses, such as those triggered by environmental stressors.

Advanced Techniques for CLPR1 Antibody Application

Question: What advanced techniques can be used to enhance the application of CLPR1 antibodies in research? Answer: Advanced techniques include:

  • Single-Molecule Localization Microscopy (SMLM): Use SMLM to achieve high-resolution imaging of CLPR1 within chloroplasts.

  • Proximity Ligation Assay (PLA): Employ PLA to detect protein-protein interactions involving CLPR1 at the nanoscale.

  • Biochemical Assays: Combine biochemical assays with CLPR1 antibodies to study protein function and interactions in vitro.

Challenges in CLPR1 Antibody Development

Question: What challenges are commonly encountered during the development and application of CLPR1 antibodies, and how can they be addressed? Answer: Common challenges include:

  • Specificity Issues: Address specificity concerns by using multiple antibodies and controls.

  • Cross-reactivity: Minimize cross-reactivity by optimizing antibody dilutions and using blocking agents.

  • Sample Preparation: Ensure consistent sample preparation to reduce variability in results.

Integration of CLPR1 Antibody Data with Other Research Tools

Question: How can data from CLPR1 antibody experiments be integrated with other research tools or datasets to enhance understanding of chloroplast biology? Answer: Integration can be achieved by:

  • Combining with Proteomics Data: Use mass spectrometry to identify proteins interacting with CLPR1 and integrate these findings with antibody data.

  • Genomic Analysis: Correlate antibody findings with genomic data to understand the genetic basis of CLPR1 function.

  • Bioinformatics Tools: Utilize bioinformatics tools to predict protein structures and interactions based on antibody data.

Future Directions in CLPR1 Antibody Research

Question: What future research directions could leverage CLPR1 antibodies to advance our understanding of chloroplast biology? Answer: Future directions include:

  • Exploring CLPR1's Role in Stress Responses: Investigate how CLPR1 contributes to chloroplast stress responses using antibodies.

  • Developing Therapeutic Applications: Explore potential therapeutic applications of CLPR1 antibodies in plant biotechnology.

  • Advanced Imaging Techniques: Apply advanced imaging techniques like super-resolution microscopy to study CLPR1 dynamics in chloroplasts.

Collaborative Research Opportunities

Question: How can researchers collaborate to advance the use of CLPR1 antibodies in academic research? Answer: Collaboration can be facilitated by:

  • Sharing Antibody Resources: Share validated antibodies among research groups to standardize experiments.

  • Joint Experimental Design: Collaborate on experimental design to address complex research questions.

  • Data Sharing Platforms: Utilize data sharing platforms to integrate findings from different laboratories.

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