UDP-glycosyltransferase derived from ginseng and use thereof

US9670469B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9670469-B2
Application numberUS-201214431868-A
CountryUS
Kind codeB2
Filing dateDec 24, 2012
Priority dateSep 27, 2012
Publication dateJun 6, 2017
Grant dateJun 6, 2017

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The present invention relates to a novel uridine diphosphate (UDP)-glycosyltransferase, and particularly to a novel UDP-glycosyltransferase derived from ginseng and use thereof, a method for preparing glycosylated ginsenoside by converting protopanaxadiol (PPD)-type ginsenoside using the UDP-glycosyltransferase, a composition for converting the PPD-type ginsenoside into glycosylated ginsenoside, comprising the UDP-glycosyltransferase, a transformant or a culture thereof as active ingredients, a method for enhancing the expression of the UDP-glycosyltransferase using MeJA (methyl jasmonate), and a composition for enhancing the expression of the UDP-glycosyltransferase, which comprises MeJA as an active ingredient.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for preparing a glycosylated ginsenoside by converting a protopanaxadiol (PPD)-type ginsenoside, comprising reacting the PPD-type ginsenoside with an isolated Uridine diphosphate (UDP)-glycosyltransferase protein of having the sequence of SEQ ID NO:1, a transformant introduced with an expression vector comprising a polynucleotide that encodes the protein having the sequence of SEQ ID NO:1, or a culture of the transformant comprising the protein having the sequence of SEQ ID NO:1 in the presence of UDP-sugar, wherein the UDP-glycosyltransferase protein has a sugar-transfer activity to the C-3 position of PPD-type ginsenoside and wherein the PPD-type ginsenoside is PPD or Compound K (C-K). 2. The method according to claim 1 , wherein the glycosylated ginsenoside is ginsenoside Rh2 or F2. 3. The method according to claim 1 , which further comprises reacting the glycosylated PPD-type ginsenoside with an isolated UDP-glycosyltransferase protein having the amino acid sequence of SEQ ID NO: 3, a transformant introduced with a vector comprising a polynucleotide that encodes the protein having the sequence of SEQ ID NO:3, or a culture of the transformant comprising the protein having the sequence of SEQ ID NO:3. 4. The method according to claim 3 , which comprises conversion of ginsenoside Rh2 into ginsenoside Rg3 or conversion of ginsenoside F2 into ginsenoside Rd by the isolated UDP-glycosyltransferase protein which is represented by the amino acid sequence of SEQ ID NO: 3.

Assignees

Inventors

Classifications

  • containing within the same carbon skeleton a carboxylic group or a thio analogue, or a derivative thereof, and a carbon atom having only two bonds to hetero atoms with at the most one bond to halogen, e.g. keto-carboxylic acids · CPC title

  • Preparation of steroids · CPC title

  • C12N9/1051Primary

    Hexosyltransferases (2.4.1) · CPC title

  • having an oxygen atom of the saccharide radical directly bound to a condensed ring system having three or more carbocyclic rings, e.g. daunomycin, adriamycin · CPC title

  • Glucuronosyltransferase (2.4.1.17) · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9670469B2 cover?
The present invention relates to a novel uridine diphosphate (UDP)-glycosyltransferase, and particularly to a novel UDP-glycosyltransferase derived from ginseng and use thereof, a method for preparing glycosylated ginsenoside by converting protopanaxadiol (PPD)-type ginsenoside using the UDP-glycosyltransferase, a composition for converting the PPD-type ginsenoside into glycosylated ginsenosi…
Who is the assignee on this patent?
Korea Advanced Inst Sci & Tech, Intelligent Synthetic Biology Ct
What technology area does this patent fall under?
Primary CPC classification C12N9/1051. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jun 06 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).