1ne9

Structural highlights

Function

FEMX_WEIVI Involved in the synthesis of the bacterial cell wall. Catalyzes the addition of alanine into the interchain peptide bridge of peptidoglycan precursor using aminoacyl-tRNA(Ala) as amino acid donor. This alanine is added to the epsilon-amino group of the L-lysine of the peptidoglycan UDP-N-acetyl-alpha-D-muramoyl-L-alanyl-D-glutamyl-L-lysyl-D-alanyl-D-alanine, in a ribosome-independent mechanism (PubMed:11083873, PubMed:4248527, PubMed:12679335, PubMed:15901708, PubMed:23744707). Specific for UDP-N-acetyl-muramoyl-pentapeptide. Has no activity toward UDP-N-acetyl-muramoyl-tetrapeptide or UDP-N-acetyl-muramoyl-tripeptide (PubMed:15901708). Also acts on L-seryl-tRNA(Ser) (PubMed:4248527).^{[1] [2] [3] [4] [5]}

Evolutionary Conservation

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

References

1. ↑ Hegde SS, Shrader TE. FemABX family members are novel nonribosomal peptidyltransferases and important pathogen-specific drug targets. J Biol Chem. 2001 Mar 9;276(10):6998-7003. Epub 2000 Nov 16. PMID:11083873 doi:http://dx.doi.org/10.1074/jbc.M008591200
2. ↑ Hegde SS, Blanchard JS. Kinetic and mechanistic characterization of recombinant Lactobacillus viridescens FemX (UDP-N-acetylmuramoyl pentapeptide-lysine N6-alanyltransferase). J Biol Chem. 2003 Jun 20;278(25):22861-7. doi: 10.1074/jbc.M301565200. Epub 2003 , Apr 4. PMID:12679335 doi:http://dx.doi.org/10.1074/jbc.M301565200
3. ↑ Maillard AP, Biarrotte-Sorin S, Villet R, Mesnage S, Bouhss A, Sougakoff W, Mayer C, Arthur M. Structure-based site-directed mutagenesis of the UDP-MurNAc-pentapeptide-binding cavity of the FemX alanyl transferase from Weissella viridescens. J Bacteriol. 2005 Jun;187(11):3833-8. PMID:15901708 doi:http://dx.doi.org/187/11/3833
4. ↑ Fonvielle M, Li de La Sierra-Gallay I, El-Sagheer AH, Lecerf M, Patin D, Mellal D, Mayer C, Blanot D, Gale N, Brown T, van Tilbeurgh H, Etheve-Quelquejeu M, Arthur M. The Structure of FemX in Complex with a Peptidyl-RNA Conjugate: Mechanism of Aminoacyl Transfer from Ala-tRNA to Peptidoglycan Precursors. Angew Chem Int Ed Engl. 2013 Jun 6. doi: 10.1002/anie.201301411. PMID:23744707 doi:10.1002/anie.201301411
5. ↑ Plapp R, Strominger JL. Biosynthesis of the peptidoglycan of bacterial cell walls. 18. Purification and properties of L-alanyl transfer ribonucleic acid-uridine diphosphate-N-acetylmuramyl-pentapeptide transferase from Lactobacillus viridescens. J Biol Chem. 1970 Jul 25;245(14):3675-82. PMID:4248527