ISDA: 3CES

Deposition Date 2008-02-29

Release Date 2009-03-03

Last Version Date 2024-02-21

Entry Detail

PDB ID:

3CES

Keywords:

RNA BINDING PROTEIN

Title:

Crystal Structure of E.coli MnmG (GidA), a Highly-Conserved tRNA Modifying Enzyme

Biological Source:

Source Organism:

Escherichia coli (Taxon ID: 562)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.41 Å

R-Value Free:

0.23

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 1 21 1

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:tRNA uridine 5-carboxymethylaminomethyl modification enzyme gidA
Gene (Uniprot):mnmG
Chain IDs:A, B, C, D
Chain Length:651
Number of Molecules:4
Biological Source:Escherichia coli

UniProt ID:P0A6U3 Pfam ID:PF01134, PF21680, PF13932

Primary Citation

Structure-function analysis of Escherichia coli MnmG (GidA), a highly conserved tRNA-modifying enzyme.

Shi, R, Villarroya, M, Ruiz-Partida, R, Li, Y, Proteau, A, Prado, S, Moukadiri, I, Benitez-Paez, A, Lomas, R, Wagner, J, Matte, A, Velazquez-Campoy, A, Armengod, M.E, Cygler, M.Show

J.Bacteriol. 191 7614 7619 (2009)

PMID: 19801413 DOI: 10.1128/JB.00650-09

Abstact

The MnmE-MnmG complex is involved in tRNA modification. We have determined the crystal structure of Escherichia coli MnmG at 2.4-A resolution, mutated highly conserved residues with putative roles in flavin adenine dinucleotide (FAD) or tRNA binding and MnmE interaction, and analyzed the effects of these mutations in vivo and in vitro. Limited trypsinolysis of MnmG suggests significant conformational changes upon FAD binding.

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