>cd05787 LbH_eIF2B_epsilon eIF-2B epsilon subunit, central Left-handed parallel beta-Helix (LbH) domain: eIF-2B is a eukaryotic translation initiator, a guanine nucleotide exchange factor (GEF) composed of five different subunits (alpha, beta, gamma, delta and epsilon). eIF2B is important for regenerating GTP-bound eIF2 during the initiation process. This event is obligatory for eIF2 to bind initiator methionyl-tRNA, forming the ternary initiation complex. The eIF-2B epsilon subunit contains an N-terminal domain that resembles a dinucleotide-binding Rossmann fold, a central LbH domain containing 4 turns, each containing three imperfect tandem repeats of a hexapeptide repeat motif (X-[STAV]-X-[LIV]-[GAED]-X), and a C-terminal domain of unknown function that is present in eIF-4 gamma, eIF-5, and eIF-2B epsilon. The epsilon and gamma subunits form the catalytic subcomplex of eIF-2B, which binds eIF2 and catalyzes guanine nucleotide exchange.

Probab=99.30  E-value=8.1e-13  Score=88.34  Aligned_cols=47  Identities=43%  Similarity=0.678  Sum_probs=27.6

Q ss_pred             EEECCCCCCCCHHCCCCCCCCCCCCCEEEEEEEEEEEECCCCCEEEEC
Q ss_conf             331122100000002332100233220233100244201000002321
Q gi|254780771|r  149 IGRKTYVGPGSVIGAGVRIGRNCSIGAGSSIYSSLIGNSVILHSGVRI  196 (347)
Q Consensus       149 IG~~~~I~~~~~I~~~~~IG~~~~I~~~~~I~~~iIG~~~~I~~~~vI  196 (347)
T Consensus         2 IG~~t~Ig~~~~I~-~svIG~nc~Ig~~~~I~~svi~d~~~Ig~~~~i   48 (79)
T cd05787           2 IGRGTSIGEGTTIK-NSVIGRNCKIGKNVVIDNSYIWDDVTIEDGCTI   48 (79)
T ss_pred             CCCCCEECCCCEEE-CCEECCCCEECCCCEEECCEEECCCEECCCCEE
T ss_conf             99989999999995-999899999999988948999197899999999