Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Structure of eEF3 and the mechanism of transfer RNA release from the E-site. / Andersen, Christian Brix Folsted; Becker, T.; Blau, M. et al.
In: Nature, Vol. 443, 2006, p. 663-668.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
}
TY - JOUR
T1 - Structure of eEF3 and the mechanism of transfer RNA release from the E-site
AU - Andersen, Christian Brix Folsted
AU - Becker, T.
AU - Blau, M.
AU - Anand, M.
AU - Halic, M.
AU - Balar, B.
AU - Mielke, T.
AU - Boesen, Thomas
AU - Pedersen, Jan Skov
AU - Spahn, C.M.T.
AU - Kinzy, T.G.
AU - Andersen, Gregers Rom
AU - Beckmann, R.
PY - 2006
Y1 - 2006
N2 - Elongation factor eEF3 is an ATPase, which, in addition to the two canonical factors eEF1A and eEF2, serves an essential function in the translation cycle of fungi. eEF3 is required for the binding of the aatRNA-eEF1A-GTP ternary complex to the ribosomal A-site and has been suggested to facilitate the clearance of deacyl-tRNA from the E-site. Here, we present the crystal structure of eEF3 showing that it consists of an N-terminal HEAT repeat domain, followed by a four-helix bundle and two ABC-type ATPase domains with a chromo-domain inserted in ABC2. Moreover, we present the cryo-EM structure of the ATP-bound form of eEF3 in complex with the post-translocational state 80S ribosome from yeast. eEF3 uses an entirely new factor binding site near the ribosomal E-site, with the chromodomain stabilizing the ribosomal L1 stalk in an open conformation, thus, allowing tRNA release.
AB - Elongation factor eEF3 is an ATPase, which, in addition to the two canonical factors eEF1A and eEF2, serves an essential function in the translation cycle of fungi. eEF3 is required for the binding of the aatRNA-eEF1A-GTP ternary complex to the ribosomal A-site and has been suggested to facilitate the clearance of deacyl-tRNA from the E-site. Here, we present the crystal structure of eEF3 showing that it consists of an N-terminal HEAT repeat domain, followed by a four-helix bundle and two ABC-type ATPase domains with a chromo-domain inserted in ABC2. Moreover, we present the cryo-EM structure of the ATP-bound form of eEF3 in complex with the post-translocational state 80S ribosome from yeast. eEF3 uses an entirely new factor binding site near the ribosomal E-site, with the chromodomain stabilizing the ribosomal L1 stalk in an open conformation, thus, allowing tRNA release.
KW - translation
KW - ABC proteins
M3 - Journal article
VL - 443
SP - 663
EP - 668
JO - Nature
JF - Nature
SN - 0028-0836
ER -