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Gene and DNA Sequence
Record information and status
Record ID
48365
Status
Published
Date of creation
2009-03-05 14:38 UTC (manoela.miranda@cbd.int)
Date of last update
2012-07-06 18:26 UTC (dina.abdelhakim@cbd.int)
Date of publication
2012-07-06 18:26 UTC (dina.abdelhakim@cbd.int)

General information
Name of the gene or DNA sequence
Apyrase-gene
Abbreviation
CS-apyrase
Category of DNA sequence
  • Protein coding sequence
Is the gene / DNA sequence is a synthetic molecule?
No
Donor organism
Donor organism
Solanum tuberosum - Potato, SOLTU
Characteristics of the protein coding sequence
Name of the protein expressed by the coding sequence
Apyrase
Biological function
Apyrases are enzymes that transform NTP (nucleoside triphosphates) via NDP to NMP without triggering an endergonic reaction in the process. These enzymes have been identified in the tissues of animals, plants (among others in Arabidopsis thaliana, legumes and potatoes) and fungi and apparently have predominantly regulatory functions.

Double knockout mutations of both apyrase genes from A. thaliana inhibit pollen germination and give rise to male sterile plants. Apyrases play a role in the formation of nodules in leguminous plants, and are also thought to be involved in phosphate uptake. 

Regulation of transporters that, amongst other things, facilitate the transport of xenobiotics out of the plant cell has been demonstrated for plant apyrases. The blocking of apyrase by specific inhibitors increases the sensitivity of the plants to different herbicides, as well as the concentration of the applied herbicides in the plants.  Over-expression of the apyrase psNTP9 from Pisum sativum in A. thaliana increases the resistance of the plants to herbicides and phytohormones.

Apyrase activity in the potato tubers is very high and is probably localised in the area of the cell wall. Together with other enzymes that influence the ATP/ADP/AMP ratio, apyrase activity is suspected to have a regulatory effect on starch biosynthesis in the potato tubers.
Related trait(s) or use(s) in biotechnology
  • Other growth, development and product quality

Records referencing this document (3)
IDDescription
3record(s) found
Country's Decision or any other Communication1 record
Modified Organism1 record
Risk Assessment1 record