Seymour Jonathan Singer (May 23, 1924 – February 2, 2017) was an American cell biologist and professor of biology, emeritus, at the University of California, San Diego.
[2] In 1961 he joined the faculty at University of California, San Diego as a Professor in the Department (now Division) of Biology.
He initiated the landmark work on the conformation of membrane proteins in 1965, resulting in the publication of two foundational papers (Lenard, John and Singer, S.J.
Protein conformation in cell membrane preparations as studied by optical rotatory dispersion and circular dichroism.
[3] He later made important discoveries on the interaction between the cytoskeleton and the cell membrane, resulting in, among other things, the identification of the cytoskeletal proteins vinculin and talin.