>TIGR00485 EF-Tu translation elongation factor Tu; InterPro: IPR004541 Translation elongation factors are responsible for two main processes during protein synthesis on the ribosome , , . EF1A (or EF-Tu) is responsible for the selection and binding of the cognate aminoacyl-tRNA to the A-site (acceptor site) of the ribosome. EF2 (or EF-G) is responsible for the translocation of the peptidyl-tRNA from the A-site to the P-site (peptidyl-tRNA site) of the ribosome, thereby freeing the A-site for the next aminoacyl-tRNA to bind. Elongation factors are responsible for achieving accuracy of translation and both EF1A and EF2 are remarkably conserved throughout evolution. EF1A (also known as EF-1alpha or EF-Tu) is a G-protein. It forms a ternary complex of EF1A-GTP-aminoacyltRNA. The binding of aminoacyl-tRNA stimulates GTP hydrolysis by EF1A, causing a conformational change in EF1A that causes EF1A-GDP to detach from the ribosome, leaving the aminoacyl-tRNA attached at the A-site. Only the cognate aminoacyl-tRNA can induce the required conformational change in EF1A through its tight anticodon-codon binding , . EF1A-GDP is returned to its active state, EF1A-GTP, through the action of another elongation factor, EF1B (also known as EF-Ts or EF-1beta/gamma/delta). This entry represents EF1A (or EF-Tu) proteins found primarily in bacteria, mitochondria and chloroplasts. Eukaryotic and archaeal EF1A (IPR004539 from INTERPRO) are excluded from this entry. When bound to GTP, EF-Tu can form a complex with any (correctly) aminoacylated tRNA except those for initiation and for selenocysteine, in which case EF-Tu is replaced by other factors . More information about these proteins can be found at Protein of the Month: Elongation Factors .; GO: 0003746 translation elongation factor activity, 0005525 GTP binding, 0006414 translational elongation, 0005622 intracellular.

Probab=99.93 E-value=5.6e-26 Score=195.65 Aligned_cols=208 Identities=29% Similarity=0.343 Sum_probs=156.0 Q ss_pred EEEEECCCCCHHHHHHHHHHHH----------------HHHCCCCCCEECCCEEEEECCCCEEEEEECCCHHHHHHHHHH Q ss_conf 8986236850446777886422----------------210012310001214999517843888851661578999866 Q gi|254780787|r 386 VTIMGHVDHGKTSLLDAIRKAD----------------VAKGEIGGITQHIGAYQVAYQGKNITFLDTPGHAAFYEMRAR 449 (884) Q Consensus 386 v~v~ghvd~GKt~lld~~r~~~----------------~~~~e~ggitq~iga~~~~~~~~~~~~iDtPGh~~f~~~r~r 449 (884) T Consensus 15 ~GtiGhvdhGkttl~aa~~~~l~~~~~~~~~~y~~id~aPee~~rGiti~~~~vey~~~~rhyahvdCPGhadyvknmit 94 (394) T TIGR00485 15 IGTIGHVDHGKTTLTAAITTVLAKEGKAAAKKYDEIDKAPEEKARGITINTAHVEYETEKRHYAHVDCPGHADYVKNMIT 94 (394) T ss_pred EEEEEECCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCHHHCCEEEEEEEEEECCCCCCEEEECCCCHHHHHHHHHH T ss_conf 30121001550578999999987510035676776523721133451565335542146751576318862678887641 Q ss_pred HHHCCCCEEEEEECCCCCCHHHHHHHHHHHHCCCC-EEEECCCCCCCCCCC--CHHHHHHHCCCCCCCCCCCCCEEEEEE Q ss_conf 64206805999983667402357778989970994-156123312443320--002210000132000123474036311 Q gi|254780787|r 450 GARVTDIAVLVLAADEEIMPQAIESINHAKAADVS-IIVAINKIDKLGADP--QKVRMSLLKHDVFVESMGGDILDVEIS 526 (884) Q Consensus 450 g~~~~d~~ilvv~~~~g~~~qt~e~~~~~~~~~~p-~iva~nk~d~~~~~~--~~~~~~~~~~~~~~~~~~~~~~~~~~~ 526 (884) T Consensus 95 GaaqmdGailvv~~~d~~mPqt~ehill~~~vGvP~~vvflnk~d~~~~~el~~lv~~e~~~ll~~~~f~G~~~Pi~~Gs 174 (394) T TIGR00485 95 GAAQMDGAILVVSAADGPMPQTREHILLARQVGVPKIVVFLNKVDMVDDEELLELVELEVRELLSEYDFPGDDVPIVRGS 174 (394) T ss_pred HHHHCCCEEEEEECCCCCCCCCHHHEEEECCCCCCEEEEEEECCCCCCHHHHHHHHHHHHHHHHHHCCCCCCCCCEEECH T ss_conf 01111760799952788887411210010026876578764023322427899999999999987407898652256114 Q ss_pred ECCCCCCCCCCC-CHH-CCCCCCCCCCCC----CCCCCCEEEEEEEECCCCCCHHHHHHCCHHHCCCCCC-CCC Q ss_conf 002477411221-000-023333420003----4866641677788637762000000000000000002-566 Q gi|254780787|r 527 AKNNLNLDKLLD-AIL-LQAEMLDLKTSI----NRKAEGIVVEGKLDRGRGPVVTVLVQKGTLSKGNILV-VGD 593 (884) Q Consensus 527 ~~~~~~~~~~~~-~~~-~~~~~~~~~~~~----~~~~~~~~~~~~~~~~~~~~~~~~~~~g~~~~~~~~~-~~~ 593 (884) T Consensus 175 al~al~~~~~~~~~~~~l~~~vd~~i~~P~r~~~~~fl~~~ed~~~i~GrGtv~tGr~e~G~~~v~~~v~~~G~ 248 (394) T TIGR00485 175 ALKALEGDAEWEEKILELMEAVDEYIPTPEREVDKPFLLPIEDVFSITGRGTVVTGRVERGVVKVGEEVEIVGL 248 (394) T ss_pred HHHHHHHHHHHHHHHHHHHHHHHHHCCCCCHHHCCCEEEEEEEEEEEECCCEEEEEEEEECEEEECCEEEEEEE T ss_conf 56542003679999999999998650675113144114553104675046347850243044764464799874

HHsearch alignment for GI: 254780787 and conserved domain: TIGR00485