ENZYME

A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_09. Read more about EC 7 here.

ENZYME entry: EC 4.2.99.22

Accepted Name

Tuliposide A-converting enzyme.

Alternative Name(s)

6-O-(4 -hydroxy-2 -methylenebutyryl)-D-glucose acyltransferase (lactone- forming).

Tuliposide-converting enzyme.

Reaction catalysed

6-tuliposide A <=> tulipalin A + D-glucose

Comment(s)

Isolated from the plant Tulipa gesneriana (tulip).
The reaction is an intramolecular transesterification producing the lactone.
The enzyme also has a weak activity with 6-tuliposide B and 6-O- benzoyl-D-glucose.

Cross-references

BRENDA

EC2PDB

ExplorEnz

PRIAM enzyme-specific profiles

KEGG Ligand Database for Enzyme Nomenclature

IUBMB Enzyme Nomenclature

IntEnz

MEDLINE

MetaCyc

UniProtKB/Swiss-Prot

R4X244, TCAB1_TULGE;	R4X4V6, TCAB2_TULGE;	R4X5P0, TCAB3_TULGE;
R4X247, TCAB4_TULGE;	I4DST8, TCEA1_TULGE;	I4DST9, TCEA2_TULGE;

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