Literature DB >> 11821038

The role of 2-methyl-6-phytylbenzoquinone methyltransferase in determining tocopherol composition in Synechocystis sp. PCC6803.

David K Shintani1, Zigang Cheng, Dean DellaPenna.   

Abstract

A putative 2-methyl-6-phytylbenzoquinone (MPBQ) methyltransferase gene, SLL0418, was identified from the Synechocystis PCC6803 genome based on its homology to previously characterized gamma-tocopherol methyltransferases. Genetic and biochemical evidence confirmed open reading frame (ORF) SLL0418 encodes a MPBQ methyltransferase. An SLL0418 partial knockout mutant accumulated beta-tocopherol with no effect in the overall tocopherol content of the cell. In vitro assays of the SLL0418 gene expressed in Escherichia coli showed the enzyme efficiently catalyzes methylation of ring carbon 3 of MPBQ. In addition, the enzyme also catalyzes the methylation of ring carbon 3 of 2-methyl-6-solanylbenzoquinol in the terminal step of plastoquinone biosynthesis.

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Year:  2002        PMID： 11821038     DOI： 10.1016/s0014-5793(01)03223-9

Source DB:  PubMed          Journal:  FEBS Lett        ISSN： 0014-5793            Impact factor:   4.124


  24 in total

1.  Tocopherols protect Synechocystis sp. strain PCC 6803 from lipid peroxidation.

Authors:  Hiroshi Maeda; Yumiko Sakuragi; Donald A Bryant; Dean Dellapenna
Journal:  Plant Physiol       Date:  2005-06-17       Impact factor: 8.340

2.  Three non-allelic epistatically interacting methyltransferase mutations produce novel tocopherol (vitamin E) profiles in sunflower.

Authors:  Catherine G Hass; Shunxue Tang; Scott Leonard; Maret G Traber; Jerry F Miller; Steven J Knapp
Journal:  Theor Appl Genet       Date:  2006-08-04       Impact factor: 5.699

3.  alpha-Tocopherol plays a role in photosynthesis and macronutrient homeostasis of the cyanobacterium Synechocystis sp. PCC 6803 that is independent of its antioxidant function.

Authors:  Yumiko Sakuragi; Hiroshi Maeda; Dean Dellapenna; Donald A Bryant
Journal:  Plant Physiol       Date:  2006-03-24       Impact factor: 8.340

4.  Rapid enhancement of α-tocopherol content in Nicotiana benthamiana by transient expression of Arabidopsis thaliana Tocopherol cyclase and Homogentisate phytyl transferase genes.

Authors:  Sundararajan Sathish; Kuppuraj Sree Preethy; Rajendran Venkatesh; Ramalingam Sathishkumar
Journal:  3 Biotech       Date:  2018-11-15       Impact factor: 2.406

5.  The role of homogentisate phytyltransferase and other tocopherol pathway enzymes in the regulation of tocopherol synthesis during abiotic stress.

Authors:  Eva Collakova; Dean DellaPenna
Journal:  Plant Physiol       Date:  2003-09-25       Impact factor: 8.340

Review 6.  Progress of vitamin E metabolic engineering in plants.

Authors:  Shuangyan Chen; Hongjie Li; Gongshe Liu
Journal:  Transgenic Res       Date:  2006-10-27       Impact factor: 2.788

7.  Characterization of tocopherol cyclases from higher plants and cyanobacteria. Evolutionary implications for tocopherol synthesis and function.

Authors:  Scott E Sattler; Edgar B Cahoon; Sean J Coughlan; Dean DellaPenna
Journal:  Plant Physiol       Date:  2003-08       Impact factor: 8.340

8.  Alpha-tocopherol is essential for acquired chill-light tolerance in the cyanobacterium Synechocystis sp. strain PCC 6803.

Authors:  Yang Yang; Chuntao Yin; Weizhi Li; Xudong Xu
Journal:  J Bacteriol       Date:  2007-12-28       Impact factor: 3.490

9.  Replacement of alpha-tocopherol by beta-tocopherol enhances resistance to photooxidative stress in a xanthophyll-deficient strain of Chlamydomonas reinhardtii.

Authors:  Anchalee Sirikhachornkit; Jai W Shin; Irene Baroli; Krishna K Niyogi
Journal:  Eukaryot Cell       Date:  2009-08-28

10.  Highly divergent methyltransferases catalyze a conserved reaction in tocopherol and plastoquinone synthesis in cyanobacteria and photosynthetic eukaryotes.

Authors:  Zigang Cheng; Scott Sattler; Hiroshi Maeda; Yumiko Sakuragi; Donald A Bryant; Dean DellaPenna
Journal:  Plant Cell       Date:  2003-09-24       Impact factor: 11.277
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