1gh8

From Proteopedia

SOLUTION STRUCTURE OF THE ARCHAEAL TRANSLATION ELONGATION FACTOR 1BETA FROM METHANOBACTERIUM THERMOAUTOTROPHICUM

PDB ID 1gh8

Drag the structure with the mouse to rotate

Structural highlights

1gh8 is a 1 chain structure with sequence from Methanothermobacter thermautotrophicus. This structure supersedes the now removed PDB entry 1d5k. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	Solution NMR
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT, TOPSAN

Function

EF1B_METTH Promotes the exchange of GDP for GTP in EF-1-alpha/GDP, thus allowing the regeneration of EF-1-alpha/GTP that could then be used to form the ternary complex EF-1-alpha/GTP/AAtRNA.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The tertiary fold of the elongation factor, aEF-1beta, from Methanobacterium thermoautotrophicum was determined in a high-throughput fashion using a minimal set of NMR experiments. NMR secondary structure prediction, deuterium exchange experiments and the analysis of chemical shift perturbations were combined to identify the protein fold as an alpha-beta sandwich typical of many RNA binding proteins including EF-G. Following resolution of the tertiary fold, a high resolution structure of aEF-1beta was determined using heteronuclear and homonuclear NMR experiments and a semi-automated NOESY assignment strategy. Analysis of the aEF-1beta structure revealed close similarity to its human analogue, eEF-1beta. In agreement with studies on EF-Ts and human EF-1beta, a functional mechanism for nucleotide exchange is proposed wherein Phe46 on an exposed loop acts as a lever to eject GDP from the associated elongation factor G-protein, aEF-1alpha. aEF-1beta was also found to bind calcium in the groove between helix alpha2 and strand beta4. This novel feature was not observed previously and may serve a structural function related to protein stability or may play a functional role in archaeal protein translation.

Rapid fold and structure determination of the archaeal translation elongation factor 1beta from Methanobacterium thermoautotrophicum.,Kozlov G, Ekiel I, Beglova N, Yee A, Dharamsi A, Engel A, Siddiqui N, Nong A, Gehring K J Biomol NMR. 2000 Jul;17(3):187-94. PMID:10959626^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Kozlov G, Ekiel I, Beglova N, Yee A, Dharamsi A, Engel A, Siddiqui N, Nong A, Gehring K. Rapid fold and structure determination of the archaeal translation elongation factor 1beta from Methanobacterium thermoautotrophicum. J Biomol NMR. 2000 Jul;17(3):187-94. PMID:10959626