Phospho-STAT6 (Tyr641) Antibody

About the Target

Phospho-STAT6 (Tyr 641) refers to the activated form of STAT6, a transcription factor phosphorylated at tyrosine residue 641. This phosphorylation occurs upon stimulation by cytokines IL-4 and IL-13 through JAK1 activation. Phosphorylated STAT6 dimerizes and translocates to the nucleus, where it binds DNA to regulate genes involved in immune responses, particularly promoting T helper 2 (Th2) cell differentiation and IgE production. Depending on the literature source, STAT6 may also be discussed as Phospho-STAT6 (Tyr641) and STAT6 (phospho Y641).

Reported cellular context includes cytoplasm and nucleus, which can matter when signal is compared across treatments or changing cell states. Following STAT6 across matched perturbations can help separate abundance effects from shifts in localization, complex assembly, or pathway state.

Research Context

STAT6 is commonly interpreted in the context of immunology and cell signaling research, and readouts are often stronger when a study separates expression changes from compartment-level redistribution. When reported signal spans cytoplasm and nucleus, 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 cytoplasm and nucleus across matched conditions
• context differences tied to immune-cell state, activation, or lineage composition
• signal-dependent shifts after ligand, inhibitor, or growth-factor perturbation
• differences between total target abundance and site-specific regulation when modified forms are compared

Variant Considerations

If your project spans exploratory questions, the regular version offers a balanced option for establishing baseline signal behavior for STAT6. 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 STAT6 reflect biology rather than handling. When interpreting STAT6, 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 STAT6 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.