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Description

Functional Role of TBL34 in Plant Immunity

TBL34 mediates acetylation of xylan in cell walls, influencing pathogen resistance:

Function	Mechanism	Impact on VW Resistance
Cell wall modification	Acetylates polysaccharides, altering cell wall integrity	Enhances physical barrier against Verticillium dahliae
Hormone signaling crosstalk	Upregulated by ethylene (ET), salicylic acid (SA), and jasmonic acid (JA)	Strengthens systemic immune response
Allelic variation	Resistant alleles (GhTBL34-2/3) show higher expression post-infection	Reduces disease index by 40–60%

Allelic Variation and Disease Resistance

Susceptible vs. Resistant Lines:
- GhTBL34-1 (susceptible): Associated with a disease index of 85–90% .
- GhTBL34-2/3 (resistant): Disease index reduced to 25–30% .
Expression Dynamics:
- Roots: 3.5-fold higher TBL34 expression in resistant cultivars post-V. dahliae inoculation .
- Stems: 2.8-fold upregulation at 12 hours post-inoculation .

Experimental Validation

VIGS Silencing: Knockdown of TBL34 increased disease severity by 70%, confirming its protective role .
Hormonal Induction:
- ET treatment: 4.2-fold TBL34 upregulation at 24 hours .
- SA/MeJA: 2.5–3.0-fold induction, peaking at 6–24 hours .

Diagnostic Use

Pathogen Response Monitoring: Quantifies TBL34 levels in cotton roots/stems to predict VW resistance .
Breeding Programs: Screens for elite alleles (GhTBL34-2/3) to develop resistant cultivars .

Mechanistic Studies

Protein-Protein Interactions: Identifies TBL34 binding partners in cell wall biosynthesis pathways .
Subcellular Localization: Confirms TBL34 presence in cell wall-associated compartments .

Technical Protocols Using TBL34 Antibody

Method	Conditions	Outcome
qRT-PCR	40 cycles, 60°C annealing, ACT14 normalization	TBL34 transcript levels in roots/stems
Western Blot	10% SDS-PAGE, anti-TBL34 (1:1,000 dilution)	Detects 65 kDa TBL34 protein band
Immunoprecipitation	Protein A/G beads, 4°C overnight incubation	Isolates TBL34 complexes for MS analysis

Challenges and Future Directions

Specificity Limitations: Cross-reactivity with other TBL family proteins requires epitope refinement .
Field Trials: Testing antibody-guided breeding strategies in diverse agroclimatic zones .
Therapeutic Potential: Engineered variants for broad-spectrum fungal resistance in crops .

Product Specs

Buffer

Preservative: 0.03% ProClin 300; Constituents: 50% Glycerol, 0.01M PBS, pH 7.4

Form

Liquid

Lead Time

14-16 weeks (Made-to-order)

Synonyms

TBL34 antibody; At2g38320 antibody; T19C21.19Protein trichome birefringence-like 34 antibody

Target Names

TBL34

Uniprot No.

O80919

Target Background

Function

This antibody targets a protein that may function as a bridging molecule, linking pectin and other cell wall polysaccharides. It is likely involved in maintaining pectin esterification and may also participate in the specific O-acetylation of cell wall polymers.

Gene References Into Functions

Relevant Research:

Studies suggest a role for acetyltransferases in xylan acetylation. For example, TBL34 and TBL35, putative acetyltransferases, are required for xylan 3-O-monoacetylation and 2,3-di-O-acetylation. Xylan acetylation is crucial for proper secondary cell wall deposition and overall plant growth. (PMID: 26795157)

Database Links

KEGG: ath:AT2G38320

STRING: 3702.AT2G38320.1

UniGene: At.12776

Protein Families

PC-esterase family, TBL subfamily

Subcellular Location

Golgi apparatus membrane; Single-pass type II membrane protein.

Q&A

The search results provided contain no references to "TBL34 Antibody," making it impossible to generate evidence-based FAQs. Below are FAQs focused on antibody research methodologies and challenges demonstrated in the available sources, organized by basic and advanced research themes:

Advanced Research Questions

How can multimodal antibody conjugates enhance mRNA delivery efficiency?

Advanced methodology:

Engineer bispecific antibodies (bsAbs) as bridges between LNPs and target cells (e.g., HA-tagged LNPs + PD-L1/CD4 bsAbs)
Quantify transfection efficiency via flow cytometry (e.g., 26-fold increase in primary T-cell transfection)

What statistical models improve seropositivity classification in antibody studies?

Analytical framework:

Model	Application Example	Advantage over Gaussian Models
Skew-Normal Mixture	Herpesvirus antibody data	Accounts for asymmetric distributions
Skew-t Mixture	Chronic Fatigue Syndrome cohorts	Robust to heavy-tailed data

How do bispecific antibody formats influence therapeutic efficacy?

Comparative analysis:

Format	Example (Source)	Key Feature
Tandem scFv	Anti-SIRP-α/EGFR pBsAb	Enables dual targeting with cyclic peptides
IgG-based trispecific	IgTT-4E1-S	Combines checkpoint blockade + conditional costimulation

Notes on Data Contradictions

Discrepancies in serological population counts: Gaussian models may suggest 3 populations for some antibodies (e.g., HHV-6), while Skew-t models reduce components to 1–2, emphasizing the need for distribution-aware analysis .
In vivo vs. in vitro efficacy gaps: Trispecific antibodies show potent TME-restricted activity in vitro but require pharmacokinetic optimization (e.g., Fc engineering) to translate to preclinical models .

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TBL34 Antibody