let-363 Antibody

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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
let-363 antibody; CeTor antibody; B0261.2 antibody; Target of rapamycin homolog antibody; EC 2.7.11.1 antibody; CeTOR antibody; Lethal protein 363 antibody
Target Names
let-363
Uniprot No.

Target Background

Function
Let-363 is a serine/threonine-protein kinase that plays a crucial role in regulating the mRNA translation machinery. It is believed to modulate the activity of translation factors such as eIF-4G and eIF-2, potentially influencing protein synthesis. While its function is primarily attributed to lipid kinase activity, it may exhibit some protein kinase activity as well. In addition, Let-363 is implicated in P-granule degradation through autophagy during embryogenesis in somatic cells. It is essential for proper germline progenitor establishment during larval development, acting upstream of rsks-1 and ife-1. Let-363 is vital for larval development and is thought to mediate lifespan regulation through insulin signaling and nutrient sensing pathways.
Gene References Into Functions
  1. Dafachronic acid signaling via let-363 is crucial for diet restriction-mediated longevity. PMID: 25209682
  2. Let-363 exerts a significant influence on lifespan. PMID: 14668850
  3. In C. elegans, the target of rapamycin (TOR) and the DAF-2/insulin-signaling pathways exhibit cross-talk with pep-2. PMID: 15155758
  4. Mutations in let-363 lead to dauer-like larval arrest, suggesting that CeTOR (let-363) regulates dauer diapause. PMID: 15253933
Database Links

KEGG: cel:CELE_B0261.2

STRING: 6239.B0261.2a.2

UniGene: Cel.19302

Protein Families
PI3/PI4-kinase family
Subcellular Location
Nucleus.
Tissue Specificity
Ubiquitous. Expressed in all major tissues and organs, including the intestine, gonads and hypodermal cells. Expressed in neurons.

Q&A

Here’s a structured collection of FAQs tailored to academic research on the let-363 Antibody, integrating data and methodologies from peer-reviewed studies and patents:

Advanced Research Questions

How to resolve contradictory data in let-363-dependent lifespan studies?

Methodological Answer: Contradictions often arise from tissue-specific mTORC1 effects. Recommended approaches:

  • Tissue-selective degradation: Compare neuronal vs. somatic mTORC1 inhibition using rab-3 (neuronal) and eft-3 (somatic) promoters .

  • Dose-response analysis: Titrate auxin concentrations to modulate degradation efficiency (e.g., 0.1–1 mM auxin) .

Example Conflict Resolution:
A study reported inconsistent lifespan extension in cgef-1 mutants under let-363 RNAi. This was resolved by standardizing auxin exposure durations and normalizing to neuronal TIR1 expression levels .

What frameworks optimize humanized let-363 Antibodies for translational research?

Methodological Answer: Humanization strategies from antibody engineering patents include:

  • CDR grafting: Transplant non-human CDRs onto human frameworks while retaining critical FR residues (e.g., Kabat positions 4L, 36H) .

  • Affinity maturation: Use phage display libraries to improve binding after humanization .

Key Framework Residues for Stability:

ChainCritical Residues (Kabat numbering)Function
Heavy24H, 49H, 93HCDR anchoring
Light46L, 58L, 71LFR-CDR interaction
Adapted from

How to integrate let-363 Antibody studies with omics datasets?

Methodological Answer:

  • Transcriptomic correlation: Pair antibody-based mTORC1 activity assays with RNA-seq data from let-363 RNAi animals .

  • Proteomic validation: Use immunoprecipitation followed by mass spectrometry to identify mTORC1 interactomes under let-363 inhibition.

Data Contradiction Analysis Framework

For conflicting results (e.g., variable lifespan effects):

  • Control for genetic background: Compare isogenic strains (e.g., cgef-1(gk261) vs. N2) .

  • Standardize auxin protocols: Ensure consistent auxin exposure (e.g., 24-hour pre-treatment) .

  • Cross-validate with orthogonal methods: Confirm RNAi efficacy via qPCR and antibody-based protein quantification .

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