N-acetylmuramoyl-L-alanyl-D-glutamyl-L-lysyl-(N6-triglycine)-D-alanyl-D-alanine-diphosphoundecaprenyl-N-acetylglucosamine:glycine glycyltransferase

N-acetylmuramoyl-L-alanyl-D-glutamyl-L-lysyl-(N6-triglycine)-D-alanyl-D-alanine-diphosphoundecaprenyl-N-acetylglucosamine:glycine glycyltransferase (EC 2.3.2.18, femB (gene)) is an enzyme with systematic name N-acetylmuramoyl-L-alanyl-D-glutamyl-L-lysyl-(N6-triglycine)-D-alanyl-D-alanine-ditrans,octacis-diphosphoundecaprenyl-N-acetylglucosamine:glycine glycyltransferase.[1][2][3] This enzyme catalyses the following chemical reaction

N-acetylmuramoyl-L-alanyl-D-isoglutaminyl-L-lysyl-(N6-triglycyl)-D-alanyl-D-alanine-diphospho-ditrans,octacis-undecaprenyl-N-acetylglucosamine + 2 glycyl-tRNA N-acetylmuramoyl-L-alanyl-D-isoglutaminyl-L-lysyl-(N6-pentaglycyl)-D-alanyl-D-alanine-diphospho-ditrans,octacis-undecaprenyl-N-acetylglucosamine + 2 tRNA
N-acetylmuramoyl-L-alanyl-D-glutamyl-L-lysyl-(N6-triglycine)-D-alanyl-D-alanine-diphosphoundecaprenyl-N-acetylglucosamine:glycine glycyltransferase
Identifiers
EC number2.3.2.18
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

This Staphylococcus aureus enzyme catalyses the successive transfer of two glycine moieties from charged tRNAs to N-acetylmuramoyl-L-alanyl-D-isoglutaminyl-L-lysyl-(N6-triglycyl)-D-alanyl-D-alanine-diphosphoundecaprenyl-N-acetylglucosamine.

References

  1. Ehlert K, Schröder W, Labischinski H (December 1997). "Specificities of FemA and FemB for different glycine residues: FemB cannot substitute for FemA in staphylococcal peptidoglycan pentaglycine side chain formation". Journal of Bacteriology. 179 (23): 7573–6. doi:10.1128/jb.179.23.7573-7576.1997. PMC 179711. PMID 9393725.
  2. Rohrer S, Berger-Bächi B (October 2003). "Application of a bacterial two-hybrid system for the analysis of protein-protein interactions between FemABX family proteins" (PDF). Microbiology. 149 (Pt 10): 2733–8. doi:10.1099/mic.0.26315-0. PMID 14523106.
  3. Schneider T, Senn MM, Berger-Bächi B, Tossi A, Sahl HG, Wiedemann I (July 2004). "In vitro assembly of a complete, pentaglycine interpeptide bridge containing cell wall precursor (lipid II-Gly5) of Staphylococcus aureus". Molecular Microbiology. 53 (2): 675–85. doi:10.1111/j.1365-2958.2004.04149.x. PMID 15228543.
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