ERBB3 and Alzheimer disease: Among the anal AD group, the most common mutations of ERBB3 were G284R (11.1% [5 of 45], extracellular domain II), V104L (4.4% [2 of 45], extracellular domain I), and A232V/R1118Q (2.2% [1 of 45], extracellular domain II/C-terminal tail; Appendix Table A3).19