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Literature summary extracted from

  • Ohara, K.; Sasaki, K.; Yazaki, K.
    Two solanesyl diphosphate synthases with different subcellular localizations and their respective physiological roles in Oryza sativa (2010), J. Exp. Bot., 61, 2683-2692.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

EC Number Cloned (Comment) Organism
2.5.1.B14 expression in yeast Oryza sativa
2.5.1.84 expression in yeast Oryza sativa

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
2.5.1.B14 mitochondrion
-
 Oryza sativa 5739
-
2.5.1.B14 mitochondrion isoform SPS1 shows a putative mitochondrial signal peptide sequence Oryza sativa 5739
-
2.5.1.84 plastid
-
 Oryza sativa 9536
-
2.5.1.84 plastid isoform SPS2 shows a putative transit peptide of 57 amino acids for plastidal localization at the N-terminus Oryza sativa 9536
-

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.5.1.B14 (2E,6E)-farnesyl diphosphate + 6 isopentenyl diphosphate Oryza sativa OsSPS1 is involved in the supply of all-trans-nonaprenyl diphosphate for ubiquinone-9 biosynthesis 6 diphosphate + all-trans-nonaprenyl diphosphate
-
 ?
2.5.1.84 farnesyl diphosphate + 6 isopentenyl diphosphate Oryza sativa OsSP2 is involved in the supply of all-trans-nonaprenyl diphosphate for plastoquinone-9 biosynthesis 6 diphosphate + nonaprenyl diphosphate
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
2.5.1.B14 Oryza sativa
-
-
-
2.5.1.B14 Oryza sativa Q653T6 isoform SPS1
-
2.5.1.84 Oryza sativa
-
-
-
2.5.1.84 Oryza sativa Q75HZ9 isoform SPS2
-

Posttranslational Modification

EC Number Posttranslational Modification Comment Organism
2.5.1.B14 proteolytic modification isoform SPS1 shows a putative mitochondrial signal peptide sequence Oryza sativa
2.5.1.84 proteolytic modification isoform SPS2 shows a putative transit peptide of 57 amino acids for plastidal localization at the N-terminus Oryza sativa

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.5.1.B14 leaf
-
 Oryza sativa
-
2.5.1.B14 root high expression level Oryza sativa
-
2.5.1.B14 root expression is highest in root Oryza sativa
-
2.5.1.B14 stem
-
 Oryza sativa
-
2.5.1.84 leaf high expression Oryza sativa
-
2.5.1.84 leaf high expression level Oryza sativa
-
2.5.1.84 root high expression Oryza sativa
-
2.5.1.84 root high expression level Oryza sativa
-
2.5.1.84 stem low expression Oryza sativa
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.5.1.B14 (2E,6E)-farnesyl diphosphate + 6 isopentenyl diphosphate best substrate Oryza sativa 6 diphosphate + all-trans-nonaprenyl diphosphate products range from C 15 to C45 ?
2.5.1.B14 (2E,6E)-farnesyl diphosphate + 6 isopentenyl diphosphate OsSPS1 is involved in the supply of all-trans-nonaprenyl diphosphate for ubiquinone-9 biosynthesis Oryza sativa 6 diphosphate + all-trans-nonaprenyl diphosphate
-
 ?
2.5.1.B14 (2E,6E)-farnesyl diphosphate + 6 isopentenyl diphosphate farnesyl diphosphate is the preferred substrate, OsSPS1 Oryza sativa 6 diphosphate + all-trans-nonaprenyl diphosphate
-
 ?
2.5.1.B14 dimethylallyl diphosphate + 8 isopentenyl diphosphate 6% of the activity with farnesyl diphosphate, OsSPS1 Oryza sativa 8 diphosphate + all-trans-nonaprenyl diphosphate
-
 ?
2.5.1.B14 dimethylallyl diphosphate + isopentenyl diphosphate 6% of the rate with farnesyl diphosphate Oryza sativa diphosphate + ?
-
 ?
2.5.1.B14 geranyl diphosphate + 7 isopentenyl diphosphate 59.3% of the activity with farnesyl diphosphate, OsSPS1 Oryza sativa 7 diphosphate + all-trans-nonaprenyl diphosphate
-
 ?
2.5.1.B14 geranyl diphosphate + 7 isopentenyl diphosphate 59% of the rate with farnesyl diphosphate Oryza sativa 7 diphosphate + all-trans-nonaprenyl diphosphate
-
 ?
2.5.1.B14 geranylgeranyl diphosphate + 5 isopentenyl diphosphate 8.23% of the activity with farnesyl diphosphate, OsSPS1 Oryza sativa 5 diphosphate + all-trans-nonaprenyl diphosphate
-
 ?
2.5.1.B14 geranylgeranyl diphosphate + 5 isopentenyl diphosphate 8.2% of the rate with farnesyl diphosphate Oryza sativa 5 diphosphate + all-trans-nonaprenyl diphosphate products range from C 15 to C45 ?
2.5.1.84 (2E,6E)-farnesyl diphosphate + 6 isopentenyl diphosphate 44% of the rate with geranyl diphosphate Oryza sativa 6 diphosphate + all-trans-nonaprenyl diphosphate products range from C 15 to C45 ?
2.5.1.84 dimethylallyl diphosphate + 8 isopentenyl diphosphate 18.1% of the activity with geranyl diphosphate, OsSPS2 Oryza sativa 8 diphosphate + nonaprenyl diphosphate
-
 ?
2.5.1.84 dimethylallyl diphosphate + isopentenyl diphosphate 18% of the rate with geranyl diphosphate Oryza sativa diphosphate + ?
-
 ?
2.5.1.84 farnesyl diphosphate + 6 isopentenyl diphosphate OsSP2 is involved in the supply of all-trans-nonaprenyl diphosphate for plastoquinone-9 biosynthesis Oryza sativa 6 diphosphate + nonaprenyl diphosphate
-
 ?
2.5.1.84 farnesyl diphosphate + 6 isopentenyl diphosphate 44% of the activity with geranyl diphosphate, OsSPS2 Oryza sativa 6 diphosphate + nonaprenyl diphosphate
-
 ?
2.5.1.84 geranyl diphosphate + 7 isopentenyl diphosphate best substrate Oryza sativa 7 diphosphate + all-trans-nonaprenyl diphosphate
-
 ?
2.5.1.84 geranyl diphosphate + 7 isopentenyl diphosphate geranyl diphosphate is the preferred substrate, OsSPS2 Oryza sativa 7 diphosphate + nonaprenyl diphosphate
-
 ?
2.5.1.84 geranylgeranyl diphosphate + 5 isopentenyl diphosphate 35% of the rate with farnesyl diphosphate Oryza sativa 5 diphosphate + all-trans-nonaprenyl diphosphate products range from C 15 to C45 ?
2.5.1.84 geranylgeranyl diphosphate + 5 isopentenyl diphosphate 34.6% of the activity with geranyl diphosphate, OsSPS2 Oryza sativa 5 diphosphate + nonaprenyl diphosphate
-
 ?

Synonyms

EC Number Synonyms Comment Organism
2.5.1.B14 OsSPS1
-
 Oryza sativa
2.5.1.B14 SPS1
-
 Oryza sativa
2.5.1.84 OsSPS2
-
 Oryza sativa
2.5.1.84 Sps2
-
 Oryza sativa

General Information

EC Number General Information Comment Organism
2.5.1.B14 physiological function isoform SPS1 is able to complement the yeast coq1 disruptant, which does not form ubiquinone. tranformants produce ubiquinone 9 instead of the native yeast product ubiquinone 6 Oryza sativa
2.5.1.84 physiological function isoform SPS2 weakly complements the yeast coq1 disruptant, which does not form ubiquinone. Transformants produce ubiquinone 9 instead of the native yeast product ubiquinone 6. SPS2 is involved in providing solanesyl diphosphate for plastochinone-9 formation Oryza sativa