3EGV

Ribosomal protein L11 methyltransferase (PrmA) in complex with trimethylated ribosomal protein L11

Replaces:  3CJU

Summary for 3EGV

• Entry DOI: 10.2210/pdb3egv/pdb
• Related: 1UFK 2NXC 2NXE 2NXJ 2NXN 3CJQ 3CJR 3CJS 3CJT 3CJU
• Descriptor: Ribosomal protein L11 methyltransferase, 50S ribosomal protein L11, S-ADENOSYL-L-HOMOCYSTEINE, ... (7 entities in total)
• Functional Keywords: post-translational modification, multiple methyltransferase, methyltransferase, transferase, methylation, ribonucleoprotein, ribosomal protein, rna-binding, rrna-binding, transferase-ribosomal protein complex, transferase/ribosomal protein
• Biological source: Thermus thermophilus HB8; More
• Cellular location: Cytoplasm : Q84BQ9
• Total number of polymer chains: 2
• Total formula weight: 44088.05

Authors

Demirci, H.,Gregory, S.T.,Dahlberg, A.E.,Jogl, G. (deposition date: 2008-09-11, release date: 2008-09-23, Last modification date: 2023-11-15)

Primary citation

Demirci, H.,Gregory, S.T.,Dahlberg, A.E.,Jogl, G.
Multiple-site trimethylation of ribosomal protein L11 by the PrmA methyltransferase.
Structure, 16:1059-1066, 2008

PubMed Abstract: Ribosomal protein L11 is a universally conserved component of the large subunit, and plays a significant role during initiation, elongation, and termination of protein synthesis. In Escherichia coli, the lysine methyltransferase PrmA trimethylates the N-terminal alpha-amino group and the epsilon-amino groups of Lys3 and Lys39. Here, we report four PrmA-L11 complex structures in different orientations with respect to the PrmA active site. Two structures capture the L11 N-terminal alpha-amino group in the active site in a trimethylated post-catalytic state and in a dimethylated state with bound S-adenosyl-L-homocysteine. Two other structures show L11 in a catalytic orientation to modify Lys39 and in a noncatalytic orientation. The comparison of complex structures in different orientations with a minimal substrate recognition complex shows that the binding mode remains conserved in all L11 orientations, and that substrate orientation is brought about by the unusual interdomain flexibility of PrmA.

PubMed: 18611379
DOI: 10.1016/j.str.2008.03.016

Experimental method

X-RAY DIFFRACTION (1.75 Å)