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Literature summary for 2.8.2.20 extracted from

  • Zhong, Y.; Xie, J.; Wen, S.; Wu, W.; Tan, L.; Lei, M.; Shi, H.; Zhu, J.K.
    TPST is involved in fructose regulation of primary root growth in Arabidopsis thaliana (2020), Plant Mol. Biol., 103, 511-525 .
    View publication on PubMed
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Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3'-phosphoadenylyl sulfate + phytosulfokine-alpha tyrosine Arabidopsis thaliana PSK-alpha adenosine 3',5'-bisphosphate + phytosulfokine-alpha tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + phytosulfokine-alpha tyrosine Arabidopsis thaliana Col-0 PSK-alpha adenosine 3',5'-bisphosphate + phytosulfokine-alpha tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + protein tyrosine Arabidopsis thaliana
-
 adenosine 3',5'-bisphosphate + protein tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + protein tyrosine Arabidopsis thaliana Col-0
-
 adenosine 3',5'-bisphosphate + protein tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + root meristem growth factor 7 tyrosine Arabidopsis thaliana RGF7 adenosine 3',5'-bisphosphate + root meristem growth factor 7 tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + root meristem growth factor 7 tyrosine Arabidopsis thaliana Col-0 RGF7 adenosine 3',5'-bisphosphate + root meristem growth factor 7 tyrosine-O-sulfate
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 ?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana Q3EDG5
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-
Arabidopsis thaliana Col-0 Q3EDG5
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-

Source Tissue

Source Tissue Comment Organism Textmining
root
-
 Arabidopsis thaliana
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seedling
-
 Arabidopsis thaliana
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3'-phosphoadenylyl sulfate + phytosulfokine-alpha tyrosine PSK-alpha Arabidopsis thaliana adenosine 3',5'-bisphosphate + phytosulfokine-alpha tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + phytosulfokine-alpha tyrosine PSK-alpha Arabidopsis thaliana Col-0 adenosine 3',5'-bisphosphate + phytosulfokine-alpha tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + protein tyrosine
-
 Arabidopsis thaliana adenosine 3',5'-bisphosphate + protein tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + protein tyrosine
-
 Arabidopsis thaliana Col-0 adenosine 3',5'-bisphosphate + protein tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + root meristem growth factor 7 tyrosine RGF7 Arabidopsis thaliana adenosine 3',5'-bisphosphate + root meristem growth factor 7 tyrosine-O-sulfate
-
 ?
3'-phosphoadenylyl sulfate + root meristem growth factor 7 tyrosine RGF7 Arabidopsis thaliana Col-0 adenosine 3',5'-bisphosphate + root meristem growth factor 7 tyrosine-O-sulfate
-
 ?

Synonyms

Synonyms Comment Organism
TPST
-
 Arabidopsis thaliana
TPST-2
-
 Arabidopsis thaliana

General Information

General Information Comment Organism
malfunction Arabidopsis thaliana tpst mutants are hypersensitive to fructose. In contrast to sucrose and glucose, fructose represses primary root growth of various ecotypes of Arabidopsis at low concentrations. RNA-seq analysis identified 636 differentially expressed genes (DEGs) in Col-0 seedlings in response to fructose verses glucose. Fructose downregulates genes involved in photosynthesis, glucosinolate biosynthesis and IAA biosynthesis, but upregulates genes involved in the degradation of branched amino acids, sucrose starvation response, and dark response. The fructose upregulated DEGs include genes encoding two AtTPST substrate proteins, phytosulfokine-alpha (PSK-alpha) and root meristem growth factor 7 (RGF7). Synthesized peptides of PSK-alpha and RGF7 can restore the fructose hypersensitivity of tpst mutant plants. Auxin distribution and accumulation at the root tip are affected by fructose and the tpst mutation Arabidopsis thaliana
physiological function enzyme TPST is involved in fructose signaling to regulate the root development and expression of genes in biological processes including auxin biosynthesis and accumulation in Arabidopsis thaliana. Sulfonation of proteins by tyrosine protein sulfotransferases (TPST) is implicated in many important biological processes in eukaryotic organisms. Arabidopsis thaliana possesses a single TPST gene with a role in auxin homeostasis and root development, overview. Modulation of auxin accumulation and distribution in roots by fructose might be partly mediated by the TPST substrate genes PSK-alpha and root meristem growth factor 7 (RGF7) Arabidopsis thaliana