Fig1M. Copyright: This image is from [doi:10.1073/pnas.0407577101] Gotoh N; Ito M; Yamamoto S; Yoshino I; Song N; Wang Y; Lax I; Schlessinger J; Shibuya M; Lang RA, Proc Natl Acad Sci U S A 2004 Dec 7;101(49):17144-9. [PMID:15569927] Copyright 2004 National Academy of Sciences, U.S.A.