XRCC1 Antibody

About the Target

XRCC1 (X-ray repair cross-complementing protein 1) is a pivotal scaffold protein involved in the DNA damage response, primarily coordinating the repair of single-strand breaks (SSBs) and facilitating base excision repair (BER). It is composed of three globular domains: the N-terminal domain binds DNA polymerase β, the central BRCT domain contains a poly(ADP-ribose) (PAR)-binding motif for PARP-1-dependent recruitment to DNA damage sites, and the C-terminal BRCT domain interacts with DNA ligase IIIα. Depending on the literature source, XRCC1 may also be discussed as DNA repair protein XRCC1; X-ray repair cross-complementing protein 1; XRCC1.

Reported cellular context includes chromosome and nucleus, which can matter when signal is compared across treatments or changing cell states. Following XRCC1 across matched perturbations can help separate abundance effects from shifts in localization, complex assembly, or pathway state.

Research Context

XRCC1 is commonly interpreted in the context of dna damage / repair and cell signaling research, and readouts are often stronger when a study separates expression changes from compartment-level redistribution. When reported signal spans chromosome and nucleus, 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 chromosome and nucleus across matched conditions
• stress-induced changes after checkpoint activation or genotoxic challenge
• signal-dependent shifts after ligand, inhibitor, or growth-factor perturbation
• 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 XRCC1. 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 XRCC1 reflect biology rather than handling. When interpreting XRCC1, 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 XRCC1 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.