>cd04452 S1_IF2_alpha S1_IF2_alpha: The alpha subunit of translation Initiation Factor 2, S1-like RNA-binding domain. S1-like RNA-binding domains are found in a wide variety of RNA-associated proteins. Eukaryotic and archaeal Initiation Factor 2 (e- and aIF2, respectively) are heterotrimeric proteins with three subunits (alpha, beta, and gamma). IF2 plays a crucial role in the process of translation initiation. The IF2 gamma subunit contains a GTP-binding site. The IF2 beta and gamma subunits together are thought to be responsible for binding methionyl-initiator tRNA. The ternary complex consisting of IF2, GTP, and the methionyl-initiator tRNA binds to the small subunit of the ribosome, as part of a pre-initiation complex that scans the mRNA to find the AUG start codon. The IF2-bound GTP is hydrolyzed to GDP when the methionyl-initiator tRNA binds the AUG start codon, at which time the IF2 is released with its bound GDP. The large ribosomal subunit then joins with the small subunit to c

Probab=98.10  E-value=5.8e-06  Score=60.55  Aligned_cols=39  Identities=21%  Similarity=0.361  Sum_probs=34.7

Q ss_pred             CCCCEEEEEEEEECCCCCEEEEEEC--CCCCCCCCHHHCCCCC
Q ss_conf             4287879899783638823135327--8977130222137121
Q gi|254780751|r   38 IKGNIYLAKVTRVEPSLQAAFVDYG--GNRHGFLPFLEIHPDY   78 (723)
Q Consensus        38 ~~GnIY~G~V~~V~p~lqAAFVdiG--~~k~gFL~~~ei~~~y   78 (723)
T Consensus         2 e~G~iv~G~V~~i~~--~GafV~l~e~~g~eGlihiSEis~~~   42 (76)
T cd04452           2 EEGELVVVTVKSIAD--MGAYVSLLEYGNIEGMILLSELSRRR   42 (76)
T ss_pred             CCCCEEEEEEEEEEC--CEEEEEECCCCCCEEEEEHHHCCCCC
T ss_conf             889999999999973--46999973369919999979968451