CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
|   | 3 | Alpha Beta | 
|   | 3.40 | 3-Layer(aba) Sandwich | 
|   | 3.40.1010 | Cobalt-precorrin-4 Transmethylase; domain 1 | 
|   | 3.40.1010.10 | Cobalt-precorrin-4 Transmethylase; Domain 1 | 
Domain Context
CATH Clusters
| Superfamily | Cobalt-precorrin-4 Transmethylase; Domain 1 | 
| Functional Family | Putative diphthine synthase | 
Enzyme Information
| 2.1.1.98 | Diphthine synthase. based on mapping to UniProt O58456 3 S-adenosyl-L-methionine + 2-((3S)-3-carboxy-3-aminopropyl)-L-histidine- [translation elongation factor 2] = 3 S-adenosyl-L-homocysteine + diphthine-[translation elongation factor 2]. -!- This archaeal enzyme produces the trimethylated product diphthine, which is converted into diphthamide by EC 6.3.1.14. -!- Different from the eukaryotic enzyme, which produces diphthine methyl ester (cf. EC 2.1.1.314). -!- In the archaeon Pyrococcus horikoshii the enzyme acts on His(600) of elongation factor 2. | 
UniProtKB Entries (1)
| O58456 | DPHB_PYRHO Pyrococcus horikoshii OT3 Diphthine synthase | 
PDB Structure
| PDB | 2ED5 | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | Escherichia | 
| Primary Citation | Mutant S147M structure of PH0725 from Pyrococcus horikoshii OT3 To be Published | 
