in a significantly higher proportion of 7Sa0 and, more interestingly,
total 7S+11S (70.57% vs. 67.26%). A possible 7S subunit, temporarily
termed 7Sb0
, has been reported in earlier work to be part of the
7S globulins (Coates, Medeiros, Thanh, & Nielsen, 1985; Morita,
Fukase, Yamaguchi, Fukuda, & Morita, 1996) although its structure
and properties have not been defined. Based on the limited results
from literature, the band (#6) immediately below 7Sb was possibly
7Sb0 although our LC–MS/MS work and data base searches indicated
it was likely a 7S subunit fragment.