6C8R image
Deposition Date 2018-01-25
Release Date 2018-02-07
Last Version Date 2023-10-04
Entry Detail
PDB ID:
6C8R
Keywords:
TRANSFERASE
Title:
Loganic acid O-methyltransferase complexed with SAH and loganic acid
Biological Source:
Source Organism:
Catharanthus roseus (Taxon ID: 4058)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.95 Å
R-Value Free:
0.21
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 21 21 21
6C8R validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Loganic acid O-methyltransferase
Gene (Uniprot):LAMT
Chain IDs:A, B
Chain Length:379
Number of Molecules:2
Biological Source:Catharanthus roseus
UniProt ID:B2KPR3 Pfam ID:PF03492 EC:2.1.1.50
Ligand Molecules
EQV
SAH
Primary Citation
Loganic Acid Methyltransferase: Insights into the Specificity of Methylation on an Iridoid Glycoside.
Chembiochem 19 784 788 (2018)
PMID: 29399933 DOI: 10.1002/cbic.201700679

Abstact

Loganin is an iridoid glycoside of interest as both an intermediate in the biosynthesis of indole alkaloids in plants and as a bioactive compound itself. Loganic acid methyltransferase catalyzes the methylation of a monoterpenoid glycoside precursor to produce loganin and demonstrates stereospecificity for the (6S,7R) substrate. We have biochemically characterized this biocatalyst and elucidated the basis for its strict substrate specificity. These studies could help facilitate the design of new classes of monoterpenoid indole alkaloids of pharmaceutical interest.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
6C8R