Protein
Elongation factor G, mitochondrial
Organism
Drosophila pseudoobscura pseudoobscura
Function
Mitochondrial GTPase that catalyzes the GTP-dependent ribosomal translocation step during translation elongation. During this step, the ribosome changes from the pre-translocational (PRE) to the post-translocational (POST) state as the newly formed A-site-bound peptidyl-tRNA and P-site-bound deacylated tRNA move to the P and E sites, respectively. Catalyzes the coordinated movement of the two tRNA molecules, the mRNA and conformational changes in the ribosome. Essential during development as it acts as a retrograde signal from mitochondria to the nucleus to slow down cell proliferation if mitochondrial energy output is low (By similarity).
Similarity
Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. EF-G/EF-2 subfamily.
Sequence
MSLITRVLQGNLTRKNALQTLTRCGYSSHAKFAEHRPIEKIRNIGISAHIDSGKTTLTERILFYTGRIAEMHEVRGKDNVGATMDSMELERQRGITIQSAATYTMWKDTNVNIIDTPGHVDFTVEVERALRVLDGAVLVLCAVGGVQSQTLTVNRQMKRYNVPCLAFINKLDRLGSNPYRVLSQMRSKMNHNAAFIQLPIGVESNCKGLVDLVREQAIYFEGENGMDVRLDEIPQDMRVESQERRQELIEHLSNADETFGEFFLEEKPFSEADLRAALRRTCINRTFTPVLVGTALKNKGVQPLLDAVIDYLPNPGEVENLGFIEREGKDPEKIVLNPARDGKDPFVGLAFKLEAGRFGQLTYLRCYQGVLRKGDNIFNARTNKKVRIARLVRLHSSQMEDVNEVYAGDIFALFGVDCASGDTFTTNPKNNLAMESIFVPEPVVSMAIKPNNTKDRDNFSKAIARFTKEDPTFHFFFDNDVKETLVSGMGELHLEIYAQRMEREYGCPVTLGKPKVAFRETLVGPCEFDYLHKKQSGGSGQYARIIGVMEPLPPNQNTLLEFVDETVGTNVPKQFVPGVEKGYREMAERGMLSGHRLSGIKFRLQDGGHHIVDSSELAFMLAAHGAIKEVFQNGSWQILEPIMMVEVTAPEEFQGAVMGHLSKRHGIITGTEGTEGWFTVYAEVPLNDMFGYAGELRSSTQGKGEFTMEYSRYSPCLPDVQDQIVRQYQETQGASQPDKKKKKN