Claudin-19 (CLDN19) HiRe Antibody - FFPE Validated

Protein Function

Use this antibody to characterize Claudin-19 when mapping complex behavior and signaling context. Claudin-19 is a membrane-associated component that helps organize cell-cell contacts and polarity. Many projects interpret this target alongside interacting partners, upstream cues, and downstream readouts.

Following Claudin-19 across perturbations can help separate expression effects from compartment shifts.

Experimental Applications

Shifts in junction organization can accompany migration, tissue morphogenesis, and altered mechanical tension. Considering complex membership and compartment shifts can clarify whether changes reflect signaling or redistribution.

Many workflows benefit from tracking both signal intensity and compartment distribution, especially when the target participates in multi-protein assemblies.

Common experimental questions that benefit from target tracking include:

• co-localization patterns with cytoskeletal elements
• subcellular redistribution at contact sites versus cytoplasm
• changes in complex assembly with scaffold or adaptor proteins

Workflow Perspective

For paraffin-embedded samples, fixation history and retrieval strategy matter; this option is aligned to those constraints. To keep comparisons consistent, align sample preparation steps and define a clear baseline for each series. If interactions are a focus, consider parallel readouts for key partners.

When interpreting Claudin-19, consider whether changes track with compartment identity, cell density, or perturbation timing; these factors can influence apparent signal without implying a direct causal link.

If your study spans multiple model systems, it can help to define a shared reference condition for Claudin-19 so cross-sample contrasts stay meaningful.

The fixed-section option supports mechanistic reading of Claudin-19 when interactions and context are the focus.