Phospho-CREB (Ser133) Antibody

About the Target

The cAMP-response element binding protein (CREB) is a nuclear protein that functions as a transcription factor, playing a critical role in gene expression regulation within dopaminergic neurons. CREB binds to cAMP response elements (CREs) within the promoters of target genes and becomes activated through phosphorylation at Ser133. Depending on the literature source, CREB may also be discussed as Phospho-CREB (Ser133) and CREB (phospho S133).

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

Research Context

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

Consider these angles when interpreting target-level changes:

• signal enrichment within nucleus relative to the broader cellular background
• compartment-specific patterns relevant to neuronal polarity, transport, or synaptic context
• stage-dependent patterns during differentiation, morphogenesis, or lineage commitment
• signal-dependent shifts after ligand, inhibitor, or growth-factor perturbation

Variant Considerations

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