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Literature summary for 1.17.1.3 extracted from

  • Bogs, J.; Downey, M.O.; Harvey, J.S.; Ashton, A.R.; Tanner, G.J.; Robinson, S.P.
    Proanthocyanidin synthesis and expression of genes encoding leucoanthocyanidin reductase and anthocyanidin reductase in developing grape berries and grapevine leaves (2005), Plant Physiol., 139, 652-663.
    View publication on PubMedView publication on EuropePMC

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Vitis vinifera enzyme contributes to proanthocyanidin synthesis in fruit, and the tissue and temporal-specific regulation of the gene determines proanthocyanidin accumulation and composition during grape berry development ?
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Organism

Organism UniProt Comment Textmining
Vitis vinifera Q4W2K5 isoform LAR1; isoform LAR1
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Vitis vinifera Q4W2K6 isoform LAR2; isoform LAR2
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Source Tissue

Source Tissue Comment Organism Textmining
flower lower level of LAR2 expression than in seed Vitis vinifera
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leaf low level of LAR1 expression Vitis vinifera
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leaf lower level of LAR2 expression than in seed Vitis vinifera
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seed highest expression of LAR2 in seed, with maximum expression at veraison Vitis vinifera
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seed isoform LAR1 seed specific, with the highest expression occurring 2 weeks after flowering Vitis vinifera
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skin berry skin, low level of LAR1 expression Vitis vinifera
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skin berry skin, lower level of LAR2 expression than in seed Vitis vinifera
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2,3-trans-3,4-cis-leucocyanidin + NADPH + H+
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Vitis vinifera (2R,3S)-catechin + NADP+ + H2O
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?
additional information enzyme contributes to proanthocyanidin synthesis in fruit, and the tissue and temporal-specific regulation of the gene determines proanthocyanidin accumulation and composition during grape berry development Vitis vinifera ?
-
?