>cd01888 eIF2_gamma eIF2-gamma (gamma subunit of initiation factor 2). eIF2 is a heterotrimeric translation initiation factor that consists of alpha, beta, and gamma subunits. The GTP-bound gamma subunit also binds initiator methionyl-tRNA and delivers it to the 40S ribosomal subunit. Following hydrolysis of GTP to GDP, eIF2:GDP is released from the ribosome. The gamma subunit has no intrinsic GTPase activity, but is stimulated by the GTPase activating protein (GAP) eIF5, and GDP/GTP exchange is stimulated by the guanine nucleotide exchange factor (GEF) eIF2B. eIF2B is a heteropentamer, and the epsilon chain binds eIF2. Both eIF5 and eIF2B-epsilon are known to bind strongly to eIF2-beta, but have also been shown to bind directly to eIF2-gamma. It is possible that eIF2-beta serves simply as a high-affinity docking site for eIF5 and eIF2B-epsilon, or that eIF2-beta serves a regulatory role. eIF2-gamma is found only in eukaryotes and archaea. It is closely related to SelB, the sel

Probab=92.42  E-value=0.39  Score=26.16  Aligned_cols=65  Identities=11%  Similarity=0.077  Sum_probs=45.9

Q ss_pred             CCEEEECCCCC--CCHHHHHHHHHCCCCCCCCCCCHHH-HHHHHHHHHHHHHCCCCCCCCEEEEECCCCC
Q ss_conf             88899738888--8989999986201254357877688-9999999999998198767538999565898
Q gi|254780725|r  275 FPLVILDVPHV--WNSWTQEVLTLSDKVVITTSLDLAG-LRNSKNLIDVLKKLRPADKPPYLVLNQVKTP  341 (427)
Q Consensus       275 yd~VIiD~p~~--~~~~~~~~L~~AD~vviV~~p~~~s-lr~a~~ll~~l~~~~~~~~~~~iVlNr~~~~  341 (427)
T Consensus        83 r~~tiiD~PGH~df~~nmi~Gas~aD~aiLvVdA~eG~~~~QT~eH~~l~~~lgv--~~iIV~vNKmDlv  150 (203)
T cd01888          83 RHVSFVDCPGHEILMATMLSGAAVMDGALLLIAANEPCPQPQTSEHLAALEIMGL--KHIIIVQNKIDLV  150 (203)
T ss_pred             EEEEEEECCCHHHHHHHHHHHHHHCCEEEEEEECCCCCCHHHHHHHHHHHHHCCC--CCEEEEEECCCCC
T ss_conf             4799986898799999999766434766898643667750779999999998499--8636775077778