The amount of a epidermal growth factor receptor substrate 15-like 1 when measured in anatomical entity. The trait is Ontology of Biological Attributes term OBA_2050124 (epidermal growth factor receptor substrate 15-like 1  level). Also known as: anatomical entity epidermal growth factor receptor substrate 15-like 1 amount, epidermal growth factor receptor substrate 15-like 1 amount.