Phospho-VAV1 (Tyr174) Antibody

About the Target

Phospho-VAV1 (Tyr174) refers to the phosphorylated form of the Vav1 protein at tyrosine residue 174, a critical regulatory site within its acidic (Ac) region. Structurally, Vav1 is a multi-domain guanine nucleotide exchange factor (GEF) containing a Dbl homology (DH) domain essential for activating Rho family GTPases, flanked by a pleckstrin homology (PH) domain, with additional calponin homology (CH), C1, SH2, and SH3 domains. Depending on the literature source, VAV1 may also be discussed as Phospho-VAV1 (Tyr174) and VAV.

Reported cellular context includes cell-cell junction, cytoplasm, cytosol, and plasma membrane, which can matter when signal is compared across treatments or changing cell states. Following VAV1 across matched perturbations can help separate abundance effects from shifts in localization, complex assembly, or pathway state.

Research Context

VAV1 is commonly interpreted in the context of cell signaling research, and readouts are often stronger when a study separates expression changes from compartment-level redistribution. When reported signal spans cell-cell junction, cytoplasm, and cytosol, 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-cell junction, cytoplasm, and cytosol across matched conditions
• signal-dependent shifts after ligand, inhibitor, or growth-factor perturbation
• differences between total target abundance and site-specific regulation when modified forms are compared
• co-patterning with orthogonal markers and control conditions that clarify pathway state

Variant Considerations

If your project spans exploratory questions, the regular version offers a balanced option for establishing baseline signal behavior for VAV1. 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 VAV1 reflect biology rather than handling. When interpreting VAV1, 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 VAV1 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.