The amount of a NEDD4-like E3 ubiquitin-protein ligase WWP1 when measured in blood serum. The trait is Ontology of Biological Attributes term OBA_2040421 (level of NEDD4-like E3 ubiquitin-protein ligase WWP1 in blood serum). Also known as: blood serum NEDD4-like E3 ubiquitin-protein ligase WWP1 amount.