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Literature summary for 3.4.22.29 extracted from

  • Duan, H.; Zhu, M.; Xiong, Q.; Wang, Y.; Xu, C.; Sun, J.; Wang, C.; Zhang, H.; Xu, P.; Peng, Y.
    Regulation of enterovirus 2A protease-associated viral IRES activities by the cell's ERK signaling cascade implicating ERK as an efficiently antiviral target (2017), Antiviral Res., 143, 13-21 .
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
in vitro transcription of transcript RNAs from the mono-cistronic reporter plasmid, the bi-cistronic reporter plasmid, the wild type EV-A71 replicon, the EV-A71 AITTL deleted replicon, the EV-A71 2Apro mutated replicon, and the EV-A71 2Apro deleted replicon Enterovirus A71

Protein Variants

Protein Variants Comment Organism
H21N/D39E/C110A site-directed mutagenesis, a EV-A71 2Apro deleted replicon plasmid is constructed by deletion mutagenesis of the wild-type EV-A71 replicon by mutation at three positions (mutations of H21N, D39E, and C110A) of the 2Apro coding sequence Enterovirus A71

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
cellular eukaryotic translation initiation factor 4G + H2O Enterovirus A71
-
?
-
?
EV-A71 viral polyprotein + H2O Enterovirus A71
-
?
-
?

Organism

Organism UniProt Comment Textmining
Enterovirus A71
-
EV-A71
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
cellular eukaryotic translation initiation factor 4G + H2O
-
Enterovirus A71 ?
-
?
cellular eukaryotic translation initiation factor 4G + H2O eIF4GI, trans-cleavage Enterovirus A71 ?
-
?
EV-A71 viral polyprotein + H2O
-
Enterovirus A71 ?
-
?
EV-A71 viral polyprotein + H2O cis-cleavage Enterovirus A71 ?
-
?

Synonyms

Synonyms Comment Organism
2A protease
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Enterovirus A71
2Apro
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Enterovirus A71
EV-A71 2Apro
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Enterovirus A71

General Information

General Information Comment Organism
malfunction viral 2Apro proteolytic activity is key process by disrupting the ERK signaling cascade. Disruption of the ERK signaling cascade interrupts viral 2Aprocatalysed processing of eIF4GI, overview. Inhibition of the ERK signaling cascade decreases 2Apro-mediated vIRES-dependent translation in other enteroviruses Enterovirus A71
metabolism regulation of enterovirus 2A protease-associated viral IRES activities by the cell's ERK signaling cascade. The positive regulation of virus replication by the ERK cascade is mediated through effects on both the cis-cleavage of the viral polyprotein by 2Apro and its trans-cleavage of cellular eIF4GI. The ERK cascade positively regulates EV-A71-mediated cleavage of eIF4GI that establishes the cellular conditions which favour vIRES-dependent translation. This ERK-2Apro linked network coordinating vIRES efficiency is also found in other important human enteroviruses Enterovirus A71
physiological function the enzymatic activity of virally encoded 2Apro is essential to the stimulation of vIRES mediated translation. Key role of ERK cascade in maintaining 2Apro proteolytic activity required to maximize EV IRES activity at different stages of viral lifecycle Enterovirus A71