6c8s | pdb_00006c8s

Loganic acid methyltransferase with SAH

spinqualitylabelsall models 6c8s, resolution 2.20Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6c8s is a 2 chain structure with sequence from Catharanthus roseus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.2Å Ligands: SAH Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function LAMT_CATRO Component of the seco-iridoid and derivatives monoterpenoid indole alkaloids (MIAs, e.g. vinblastine and ajmalicine) biosynthesis pathway. Catalyzes the methylation of loganic acid (6S,7R) to produce loganin (PubMed:29399933, PubMed:18326827, PubMed:24104568). Weak activity with secologanic acid as substrate. Inactive on deoxyloganic, dehydrologanic, epiloganic and loganetic acid (PubMed:18326827). Publication Abstract from PubMed 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. The loganic acid methyltransferase catalyzes the methylation of a monoterpenoid glycoside precursor to produce loganin, and demonstrates stereospecificity for the (6S,7R) substrate. Here, we biochemically characterize this biocatalyst and elucidate the basis for its strict substrate specificity. These studies may help facilitate the design of new classes of monoterpenoid indole alkaloids of pharmaceutical interest. Loganic Acid Methyltransferase: Insights into the specificity of methylation on an iridoid glycoside.,Petronikolou N, Hollatz A, Schuler MA, Nair SK Chembiochem. 2018 Feb 5. doi: 10.1002/cbic.201700679. PMID:29399933 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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