xCT/SLC7A11 Antibody

About the Target

xCT, also known as SLC7A11, is the light chain subunit of the cystine/glutamate antiporter system x_c^−, a sodium-independent transporter that facilitates a 1:1 exchange of extracellular cystine for intracellular glutamate across the plasma membrane. It is a multi-pass transmembrane protein that heterodimerizes with the heavy chain 4F2hc (SLC3A2) and adopts a conserved ‘5+5’ inverted topology fold, with a central binding site lined by positively charged residues that confer substrate specificity. Depending on the literature source, SLC7A11 may also be discussed as xCT/SLC7A11 and Cystine/glutamate transporter.

Reported cellular context includes cellmembrane and membrane, which can matter when signal is compared across treatments or changing cell states. Following SLC7A11 across matched perturbations can help separate abundance effects from shifts in localization, complex assembly, or pathway state.

Research Context

SLC7A11 is commonly interpreted in the context of cancer and oxidative stress research, and readouts are often stronger when a study separates expression changes from compartment-level redistribution. When reported signal spans cellmembrane and membrane, 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 cellmembrane and membrane across matched conditions
• changes associated with proliferative state, oncogenic signaling, or treatment response
• redox-associated shifts that may alter abundance, localization, or pathway coupling
• 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 SLC7A11. 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 SLC7A11 reflect biology rather than handling. When interpreting SLC7A11, 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 SLC7A11 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.