S-Adenosyl-S-carboxymethyl-l-homocysteine: a novel cofactor found in the putative tRNA-modifying enzyme CmoA

Byrne, R.T.; Whelan, F.; Aller, P.; Bird, L.E.; Dowle, A.; Lobley, C.M.C.; Reddivari, Y.; Nettleship, J.E.; Owens, R.J.; Antson, A.A.; Waterman, D.G.

doi:10.1107/S0907444913004939

Acta Crystallographica Section D
Acta Crystallographica
Section D STRUCTURAL BIOLOGY

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Figure 5
Modelling of SCM-SAH into YecO. The re-refined coordinates with either (a) the originally modelled Se-substituted SAH and Cl⁻ ion or (b) remodelled SCM-SAH are displayed along with the 2mF_o − DF_c electron-density maps contoured at 1σ and the mF_o − DF_c difference electron-density maps contoured at 3σ. SCM-SAH is depicted with C atoms in cyan, while C atoms of protein residues are shown in green.

STRUCTURAL
BIOLOGY

ISSN: 2059-7983

Volume 69| Part 6| June 2013| Pages 1090-1098

https://doi.org/10.1107/S0907444913004939

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