Diphthine synthase (DPS) is a S-adenosyl-L-methionine (SAM)-dependent methyltransferase. DPS catalyzes the trimethylation of a specific histidine residue in elongation factor 2 forming a diphthine and producing S-adenosyl-L-homocysteine (SAH). DPS participates in the diphthamide biosynthesis.[1]

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(2owu), water molecules shown as red spheres.

Diphthine synthase complex with S-adenosyl-L-homocysteine (SAH) and Na+ ion 2owu

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3D structures of diphthine synthase3D structures of diphthine synthase

Updated on 15-July-2020

1vhv – DPS – Archaeoglobus fulgidus
2dsg, 2dsh, 2dsi, 2hr8, 2dv3, 2dv4, 2dv5, 2dv7, 2dxv, 2dxw, 2dxx, 2e07, 2e08, 2e15, 2e16, 2e17, 2e4n, 2e4r, 2e7r, 2ed3, 2ed5, 2eeq, 2owf, 2owg, 2owk, 2owu, 2owv, 2egb, 2z6r, 2egl, 2egs, 2eh2, 2eh4, 2eh5, 2ehc, 2ehl, 2ejj, 2ejk, 2p5c, 2p5f, 2p6d, 2p6i, 2p6k, 2ejz, 2ek2, 2ek3, 2ek4, 2ek7, 2eka, 2p6l, 2p9d, 2el0, 2el1, 2el2, 2el3, 2eld, 2ele, 2emr, 2emu, 2en5, 2eni, 2pb4, 2pb5, 2pb6, 2pca, 2pcg, 2pch, 2pci, 2pck, 2pcm – PhDPS (mutant) + SAH – Pyrococcus horikoshii
1vce - PhDPS + SAH
3i4t - DPS (mutant) – Entamoeba histolytica

ReferencesReferences

  1. Zhu X, Kim J, Su X, Lin H. Reconstitution of diphthine synthase activity in vitro. Biochemistry. 2010 Nov 9;49(44):9649-57. doi: 10.1021/bi100812h. PMID:20873788 doi:http://dx.doi.org/10.1021/bi100812h

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