KRas4b interacts with eIF2Bδ through its C-terminal
HVR.
(a) Heavy/light ratio of eIF2Bδ in KRas4a/b SILAC and the primary
mass spectra of one eIF2Bδ peptide (residues 210–225)
in forward and reverse KRas4b SILAC. (b) Immunoprecipitation of FLAG-tagged
KRas4b, but not KRas4a, pulled out endogenous eIF2Bδ in HEK293T
cells. (c) Immunoprecipitation of FLAG-tagged HRas(1–164)-KRas4b
(165–188), but not HRas(1–164)-KRas4a (165–189),
pulled out endogenous eIF2Bδ as FLAG-tagged KRas4b did. (d)
Immunoprecipitation of FLAG-tagged KRas4b WT, G12D and S17N pulled
out similar levels of endogenous eIF2Bδ. (e) Heavy/light ratios
of eIF2Bα, eIF2Bβ, eIF2Bγ, and eIF2Bε in KRas4a/b
SILAC.