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Indicator Explainer

WAP Four-Disulfide Core Domain Protein 2

WAP four-disulfide core domain protein 2 (124 aa, ~13 kDa) is encoded by the human WFDC2 gene. This protein may play a role in both proteinase inhibition and spermatogenesis.

Reviewed 2026-10-19
Read this first

This page explains what the indicator is and how results are interpreted in general terms. Reference ranges depend on the laboratory, the method, and your own situation — no single “normal value” applies to everyone. This page is health information, not a diagnosis. For symptoms, treatment, or urgent concerns, contact a healthcare professional.

When it is tested

Source: National Cancer Institute, NCI Thesaurus 26.09d, C20893. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-19. No individual clinical interpretation or human reviewer is asserted.

Reading results

Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.

Also Known As

EP4Epididymal Protein 4Epididymal Secretory Protein E4Epididymis-Specific Whey-Acidic Type Four-Disulfide Core ProteinHE4Human Epididymis Protein 4Major Epididymis-Specific Protein E4Putative Protease Inhibitor WAP5WAP Domain Containing Protein HE4-V4WAP Four-Disulfide Core Domain Protein 2WFDC2

References