Six phenylalanine ammonia-lyases from Camellia sinensis : Evolution, expression, and kinetics

Copyright © 2017. Published by Elsevier Masson SAS.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 118(2017) vom: 01. Sept., Seite 413-421
1. Verfasser: Wu, Yingling (VerfasserIn)
Weitere Verfasser: Wang, Wenzhao, Li, Yanzhi, Dai, Xinlong, Ma, Guoliang, Xing, Dawei, Zhu, Mengqing, Gao, Liping, Xia, Tao
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Camellia sinensis Evolution Expression Kinetics Phenylalanine ammonia-lyase Plant Proteins Phenylalanine Ammonia-Lyase EC 4.3.1.24
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520 |a Phenylalanine ammonia-lyase (PAL), the branch point enzyme controlling the flow of primary metabolism into second metabolism, converts the L-phenylalanine (L-Phe) to yield cinnamic acid. Based on the sequencing data available from eight transcriptome projects, six PAL genes have been screened out, cloned, and designated as CsPALa-CsPALf. The phylogenetic tree showed that CsPALs were divided into three subgroups, PALa and PALb, PALc and PALd, and PALe and PALf. All six CsPALs exhibited indiscriminate cytosolic locations in epidermis cells and mesophyll cells. Then, the expression profiles of six PAL genes were qualitatively investigated and they displayed tissue-/induced-expression specificity in several tissues or under different exogenous treatments. Furthermore, in vitro enzymatic assays showed that all six recombinant proteins were characterized by the strict substrate specificity toward L-Phe, but no activity toward L-Tyr, and they displayed subtle differences in kinetics and enzymatic properties. These results indicate that CsPALs play both distinct and overlapping roles in plant growth and responses to environmental cues 
650 4 |a Journal Article 
650 4 |a Camellia sinensis 
650 4 |a Evolution 
650 4 |a Expression 
650 4 |a Kinetics 
650 4 |a Phenylalanine ammonia-lyase 
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650 7 |a Phenylalanine Ammonia-Lyase  |2 NLM 
650 7 |a EC 4.3.1.24  |2 NLM 
700 1 |a Wang, Wenzhao  |e verfasserin  |4 aut 
700 1 |a Li, Yanzhi  |e verfasserin  |4 aut 
700 1 |a Dai, Xinlong  |e verfasserin  |4 aut 
700 1 |a Ma, Guoliang  |e verfasserin  |4 aut 
700 1 |a Xing, Dawei  |e verfasserin  |4 aut 
700 1 |a Zhu, Mengqing  |e verfasserin  |4 aut 
700 1 |a Gao, Liping  |e verfasserin  |4 aut 
700 1 |a Xia, Tao  |e verfasserin  |4 aut 
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