TSG101 Antibody

About the Target

TSG101 (Tumor Susceptibility Gene 101) encodes a highly conserved, ubiquitously expressed multidomain protein that plays essential roles in cell proliferation, survival, and intracellular protein trafficking. Structurally, TSG101 contains a ubiquitin-conjugating enzyme E2 variant (UEV) domain that binds ubiquitin and PTAP motifs but lacks enzymatic activity, a proline-rich domain (PRD), a coiled-coil domain (CC), and a C-terminal steadiness box (SB) responsible for autoregulating protein levels. Depending on the literature source, TSG101 may also be discussed as Tumor susceptibility gene 101 protein and ESCRT-I complex subunit TSG101.

Reported cellular context includes cytoplasm, cytoskeleton, endosome, and membrane, which can matter when signal is compared across treatments or changing cell states. Following TSG101 across matched perturbations can help separate abundance effects from shifts in localization, complex assembly, or pathway state.

Research Context

TSG101 is commonly interpreted in the context of cancer and cell cycle research, and readouts are often stronger when a study separates expression changes from compartment-level redistribution. When reported signal spans cytoplasm, cytoskeleton, and endosome, 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, cytoskeleton, and endosome across matched conditions
• changes associated with proliferative state, oncogenic signaling, or treatment response
• cell-cycle linked differences in abundance, timing, or compartmental enrichment
• 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 TSG101. 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 TSG101 reflect biology rather than handling. When interpreting TSG101, 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 TSG101 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.