βIII-Tubulin Antibody

About the Target

βIII-tubulin, encoded by the TUBB3 gene on chromosome 16q24. 3, is a neuron-specific β-tubulin isotype primarily expressed in the central and peripheral nervous systems and testicular Sertoli cells, with aberrant expression observed in various epithelial cancers. Structurally, it comprises 450 amino acids (or 378 in an alternatively spliced isoform) and features a conserved GTPase domain critical for microtubule dynamics, with a highly divergent C-terminal tail (residues 430-450) that contributes to its isotype-specific functions, including effects on mitochondrial architecture and resistance to paclitaxel-induced apoptosis. Depending on the literature source, TUBB3 may also be discussed as betaIII-Tubulin and TUJ1.

Reported cellular context includes cell projection, cytoplasm, cytoskeleton, and microtubule, which can matter when signal is compared across treatments or changing cell states. Following TUBB3 across matched perturbations can help separate abundance effects from shifts in localization, complex assembly, or pathway state.

Research Context

TUBB3 is commonly interpreted in the context of cancer, neuroscience, and metabolism research, and readouts are often stronger when a study separates expression changes from compartment-level redistribution. When reported signal spans cell projection, cytoplasm, and cytoskeleton, a defined reference condition can make comparisons more interpretable across perturbations, passages, or replicate sets.

Consider these angles when interpreting target-level changes:

• apparent redistribution between cell projection, cytoplasm, and cytoskeleton across matched conditions
• changes associated with proliferative state, oncogenic signaling, or treatment response
• compartment-specific patterns relevant to neuronal polarity, transport, or synaptic context
• responses linked to nutrient status, mitochondrial state, or metabolic rewiring

Variant Considerations

If your project spans exploratory questions, the regular version offers a balanced option for establishing baseline signal behavior for TUBB3. This can help when protocols evolve over time and the goal is to compare experiments using a stable reference workflow.

Standardize sampling time, control choice, and downstream analysis thresholds so apparent differences in TUBB3 reflect biology rather than handling. When interpreting TUBB3, it is often useful to decide early whether the main question is overall abundance, compartmental enrichment, or context-dependent redistribution.

For multi-run studies, a shared reference condition can keep TUBB3 trends easier to compare across datasets. That kind of consistency is especially helpful when follow-up work expands to new perturbations, model systems, or longitudinal collections.