Phospho-YB1 (Ser102) Antibody

About the Target

YBX1 is a target of interest in many antibody-based workflows. Phospho-YB1(Y-box binding protein 1) (Ser102) is a multifunctional DNA- and RNA-binding protein that acts as both a transcription factor in the nucleus and an RNA-binding protein in the cytoplasm, regulating gene expression, mRNA stability, and translation. Structurally, YB-1 contains a conserved cold-shock domain (CSD) that mediates nucleic acid binding, flanked by an N-terminal alanine/proline-rich region and a C-terminal domain rich in arginine and lysine repeats. Depending on the literature source, YBX1 may also be discussed as Phospho-YB1 (Ser102) and RNA SCP.

Reported cellular context includes cytoplasm, nucleus, and secreted, which can matter when signal is compared across treatments or changing cell states. Following YBX1 across matched perturbations can help separate abundance effects from shifts in localization, complex assembly, or pathway state.

Research Context

YBX1 is commonly interpreted in the context of cancer and cell signaling research, and readouts are often stronger when a study separates expression changes from compartment-level redistribution. When reported signal spans cytoplasm, nucleus, and secreted, 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, nucleus, and secreted across matched conditions
• changes associated with proliferative state, oncogenic signaling, or treatment response
• 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 YBX1. 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 YBX1 reflect biology rather than handling. When interpreting YBX1, 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 YBX1 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.