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EC 2.3.2.18 Details

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EC number

2.3.2.18

Accepted name

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

Reaction

MurNAc-L-Ala-D-isoglutaminyl-L-Lys-(N⁶-tri-Gly)-D-Ala-D-Ala-diphospho-ditrans,octacis-undecaprenyl-GlcNAc + 2 glycyl-tRNA^Gly = MurNAc-L-Ala-D-isoglutaminyl-L-Lys-(N⁶-penta-Gly)-D-Ala-D-Ala-diphospho-ditrans,octacis-undecaprenyl-GlcNAc + 2 tRNA^Gly

Other name(s)

femB (gene name), N-acetylmuramoyl-L-alanyl-D-glutamyl-L-lysyl-(N⁶-triglycine)-D-alanyl-D-alanine-ditrans,octacis-diphosphoundecaprenyl-N-acetylglucosamine:glycine glycyltransferase

Systematic name

MurNAc-L-Ala-D-isoglutaminyl-L-Lys-(N⁶-tri-Gly)-D-Ala-D-Ala-diphospho-ditrans,octacis-undecaprenyl-GlcNAc:glycine glycyltransferase

Comment

This Staphylococcus aureus enzyme catalyses the successive transfer of two Gly moieties from charged tRNAs to MurNAc-L-Ala-D-isoglutaminyl-L-Lys-(N⁶-tri-Gly)-D-Ala-D-Ala-diphosphoundecaprenyl-GlcNAc, attaching them to the three Gly molecules that were previously attached to the N⁶ of the L-Lys at position 3 of the pentapeptide by EC 2.3.2.16 (lipid II:glycine glycyltransferase) and EC 2.3.2.17 (N-acetylmuramoyl-L-alanyl-D-glutamyl-L-lysyl-(N⁶-glycyl)-D-alanyl-D-alanine-diphosphoundecaprenyl-N-acetylglucosamine:glycine glycyltransferase). This is the last step in the synthesis of the pentaglycine interpeptide bridge that is used in this organism for the crosslinking of different glycan strands to each other.

History

created 2010

EC Tree

1 Oxidoreductases

1.1 Acting on the CH-OH group of donors

1.2 Acting on the aldehyde or oxo group of donors

1.3 Acting on the CH-CH group of donors

1.4 Acting on the CH-NH₂ group of donors

1.5 Acting on the CH-NH group of donors

1.6 Acting on NADH or NADPH

1.7 Acting on other nitrogenous compounds as donors

1.8 Acting on a sulfur group of donors

1.9 Acting on a heme group of donors

1.10 Acting on diphenols and related substances as donors

1.11 Acting on a peroxide as acceptor

1.12 Acting on hydrogen as donor

1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)

1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen

1.15 Acting on superoxide as acceptor

1.16 Oxidizing metal ions

1.17 Acting on CH or CH₂ groups

1.17.1 With NAD⁺ or NADP⁺ as acceptor

1.17.2 With a cytochrome as acceptor

1.17.3 With oxygen as acceptor

1.17.4 With a disulfide as acceptor

1.17.5 With a quinone or similar compound as acceptor

1.17.7 With an iron-sulfur protein as acceptor

1.17.8 With a flavin as acceptor

1.17.9 With a copper protein as acceptor

1.17.98 With other, known, physiological acceptors

1.17.98.1 bile-acid 7α-dehydroxylase

1.17.98.2 bacteriochlorophyllide c C-7¹-hydroxylase

1.17.98.3 formate dehydrogenase (coenzyme F₄₂₀)

1.17.98.4 formate dehydrogenase (hydrogenase)

1.17.99 With unknown physiological acceptors

1.18 Acting on iron-sulfur proteins as donors

1.19 Acting on reduced flavodoxin as donor

1.20 Acting on phosphorus or arsenic in donors

1.20.1 With NAD⁺ or NADP⁺ as acceptor

1.20.2 With a cytochrome as acceptor

1.20.4 With disulfide as acceptor

1.20.9 With a copper protein as acceptor

1.20.98 With other, known, physiological acceptors

1.20.99 With unknown physiological acceptors

1.21 Catalysing the reaction X-H + Y-H = X-Y

1.22 Acting on halogen in donors

1.23 Reducing C-O-C group as acceptor

1.97 Other oxidoreductases

1.98 Enzymes using H₂ as reductant (deleted subclass)

1.99 Other enzymes using O₂ as oxidant (deleted subclass)

2.1 Transferring one-carbon groups

2.2 Transferring aldehyde or ketonic groups

2.3 Acyltransferases

2.3.1 Transferring groups other than aminoacyl groups

2.3.2 Aminoacyltransferases

2.3.2.1 D-glutamyltransferase

2.3.2.2 γ-glutamyltransferase

2.3.2.3 lysyltransferase

2.3.2.4 γ-glutamylcyclotransferase

2.3.2.5 glutaminyl-peptide cyclotransferase

2.3.2.6 lysine/arginine leucyltransferase

2.3.2.7 aspartyltransferase

2.3.2.8 arginyltransferase

2.3.2.9 agaritine γ-glutamyltransferase

2.3.2.10 UDP-N-acetylmuramoylpentapeptide-lysine N⁶-alanyltransferase

2.3.2.11 alanylphosphatidylglycerol synthase

2.3.2.12 peptidyltransferase

2.3.2.13 protein-glutamine γ-glutamyltransferase

2.3.2.14 D-alanine γ-glutamyltransferase

2.3.2.15 glutathione γ-glutamylcysteinyltransferase

2.3.2.16 lipid II:glycine glycyltransferase

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

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

2.3.2.19 ribostamycin:4-(γ-L-glutamylamino)-(S)-2-hydroxybutanoyl-[BtrI acyl-carrier protein] 4-(γ-L-glutamylamino)-(S)-2-hydroxybutanoate transferase

2.3.2.20 cyclo(L-leucyl-L-phenylalanyl) synthase

2.3.2.21 cyclo(L-tyrosyl-L-tyrosyl) synthase

2.3.2.22 cyclo(L-leucyl-L-leucyl) synthase

2.3.2.23 E2 ubiquitin-conjugating enzyme

2.3.2.24 (E3-independent) E2 ubiquitin-conjugating enzyme

2.3.2.25 N-terminal E2 ubiquitin-conjugating enzyme

2.3.2.26 HECT-type E3 ubiquitin transferase

2.3.2.27 RING-type E3 ubiquitin transferase

2.3.2.28 L-allo-isoleucyltransferase

2.3.2.29 aspartate/glutamate leucyltransferase

2.3.2.30 L-ornithine N^α-acyltransferase

2.3.2.31 RBR-type E3 ubiquitin transferase

2.3.2.32 cullin-RING-type E3 NEDD8 transferase

2.3.2.33 RCR-type E3 ubiquitin transferase

2.3.2.34 E2 NEDD8-conjugating enzyme

2.3.2.35 capsaicin synthase

2.3.2.36 RING-type E3 ubiquitin transferase (cysteine targeting)

2.3.3 Acyl groups converted into alkyl groups on transfer

2.4 Glycosyltransferases

2.5 Transferring alkyl or aryl groups, other than methyl groups

2.6 Transferring nitrogenous groups

2.7 Transferring phosphorus-containing groups

2.8 Transferring sulfur-containing groups

2.9 Transferring selenium-containing groups

2.10 Transferring molybdenum- or tungsten-containing groups

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Release 2023.1 (January 2023)