×

Network disruptions

We have been experiencing disruptions on our local network which has affected the stability of these web pages. We have been working with IT support team to get this fixed as a matter of urgency and apologise for any inconvenience.

CATH Classification

Domain Context

CATH Clusters

Superfamily Diphtheria toxin, translocation domain
Functional Family Diphtheria toxin

Enzyme Information

2.4.2.36
NAD(+)--diphthamide ADP-ribosyltransferase.
based on mapping to UniProt P00588
NAD(+) + diphthamide-[translation elongation factor 2] = nicotinamide + N-(ADP-D-ribosyl)diphthamide-[translation elongation factor 2].
-!- Dihtheria toxin and some other bacterial toxins catalyze this reaction, which inactivates translation elongation factor 2 (EF2). -!- The acceptor is diphthamide, a unique modification of a histidine residue in the elongation factor found in archaebacteria and all eukaryotes, but not in eubacteria. -!- Cf. EC 2.4.2.31. -!- The relevant histidine of EF2 is His(715) in mammals, His(699) in yeast and His(600) in Pyrococcus horikoshii.

UniProtKB Entries (1)

P00588
DTX_CORBE
Corynephage beta
Diphtheria toxin

PDB Structure

PDB 1F0L
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Characterization of High-Order Oligomerization and Energetics in Diphtheria Toxin
Steere, B.
Thesis
CATH-Gene3D is a Global Biodata Core Resource Learn more...