To improve security and privacy, we are moving our web pages and services from HTTP to HTTPS.
To give users of web services time to transition to HTTPS, we will support separate HTTP and HTTPS services until the end of 2017.
From January 2018 most HTTP traffic will be automatically redirected to HTTPS. [more...]
View this page in https

ENZYME entry: EC 2.1.1.158

Accepted Name
7-methylxanthosine synthase.
Alternative Name(s)
Xanthosine methyltransferase.
XMT.
XRS1.
Reaction catalysed
S-adenosyl-L-methionine + xanthosine <=> S-adenosyl-L-homocysteine + 7-methylxanthosine
Comment(s)
  • The enzyme is specific for xanthosine, as XMP and xanthine cannot act as substrates.
  • The enzyme does not have N(1)- or N(3)- methylation activity.
  • This is the first methylation step in the production of caffeine.
Cross-references
BRENDA2.1.1.158
EC2PDB2.1.1.158
ExplorEnz2.1.1.158
PRIAM enzyme-specific profiles2.1.1.158
KEGG Ligand Database for Enzyme Nomenclature2.1.1.158
IUBMB Enzyme Nomenclature2.1.1.158
IntEnz2.1.1.158
MEDLINEFind literature relating to 2.1.1.158
MetaCyc2.1.1.158
UniProtKB/Swiss-Prot
Q9AVK0, XMT1_COFAR;  A4GE69, XMT1_COFCA;  

View entry in original ENZYME format
View entry in raw text format (no links)

All UniProtKB/Swiss-Prot entries referenced in this entry, with possibility to download in different formats, align etc.
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.1.1.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.1.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.-.-.-