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Synonyms
nia protease, nia-pro, nia protein, nia proteins, nuclear inclusion a protease, protease nia, proteinase nia, nuclear inclusion a-protease, potyviral nuclear inclusion a, nuclear inclusion body protein a,
more
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49 kDa proteinase
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nuclear inclusion a protease
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nuclear inclusion a-protease
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nuclear inclusion body protein a
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nuclear inclusion protein A protease
nuclear inclusion protein-a protease
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nuclear inclusion-a protease
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potyviral nuclear inclusion a
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polyprotein consisting of two domains, viral protein genome-linked (VPg) and protease (NIaPro), separated by an inefficiently utilized selfproteolytic site
potyvirus NIa protease
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proteinase, polyprotein-processing, Nia
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proteins (specific proteins and subclasses), NIa (nuclear inclusion, a)
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proteins, small nuclear inclusion NIa
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tobacco vein mottling virus protease
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NIA

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NIA
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polyprotein consisting of two domains, viral protein genome-linked (VPg) and protease (NIaPro), separated by an inefficiently utilized selfproteolytic site
NIa protease

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NIa protease
turnip mosaic potyvirus
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NIa-Pro

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nuclear inclusion protein A protease

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nuclear inclusion protein A protease
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protease NIa

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acetyl-Arg-Glu-Thr-Val-Arg-Phe-Gln-Ser-Asp-amide + H2O
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acetyl-Asn-Asn-Val-Arg-Phe-Gln-Ser-Leu-amide + H2O
acetyl-Asn-Asn-Val-Arg-Phe-Gln + Ser-Leu-amide
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide + H2O
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amyloid beta + H2O
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the enzyme cleaves monomeric and oligomeric amyloid beta at a similar rate in vitro
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amyloid-beta + H2O
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amyloid-beta peptide + H2O
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degradation of oligomeric as well as monomeric forms of Amyloid-beta, presence of the consensus sequence, Val12-His-His-Gln15, near the presumptive alpha-secretase cleavage site of the amyloid-beta peptide
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nuclear inclusion protein a + H2O
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P-sG polyprotein + H2O
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Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln-Ser-Gly-Thr-Val-Asp-Arg-Arg + H2O
Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln + Ser-Gly-Thr-Val-Asp-Arg-Arg
RETVRFQSD + H2O
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TETVRFQSGTRR + H2O
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turnip mosaic virus polyprotein + H2O
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WDGGEVAHQAGESV + H2O
WDGGEVAHQ + AGESV
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additional information
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acetyl-Arg-Glu-Thr-Val-Arg-Phe-Gln-Ser-Asp-amide + H2O

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acetyl-Arg-Glu-Thr-Val-Arg-Phe-Gln-Ser-Asp-amide + H2O
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acetyl-Asn-Asn-Val-Arg-Phe-Gln-Ser-Leu-amide + H2O

acetyl-Asn-Asn-Val-Arg-Phe-Gln + Ser-Leu-amide
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acetyl-Asn-Asn-Val-Arg-Phe-Gln-Ser-Leu-amide + H2O
acetyl-Asn-Asn-Val-Arg-Phe-Gln + Ser-Leu-amide
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acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide + H2O

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turnip mosaic potyvirus
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acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide + H2O
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nuclear inclusion protein a + H2O

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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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identification of cleavage site
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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analysis of cleavage sites, specific for its own polypeptide chain, no cleavage of other potyvirus NIa proteins
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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analysis of cleavage sites, specific for its own polypeptide chain, no cleavage of other potyvirus NIa proteins
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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turnip mosaic potyvirus
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nuclear inclusion protein a + H2O
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turnip mosaic potyvirus
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the nuclear inclusion protein of potyviruses has two domains, the Vpg domain of 22 kDa and the C-terminal domain of 27 kDa which has proteolytic activity. The first cleavage at Ser223-Gly224 produces a 25 kDa protein. TuMV cleaves itself in cis, removing a 20 amino aicd peptide from the C-terminus. A second cleavage is very slow and occurs between Thr207-Ser208, resulting in a 24 kDa protein
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nuclear inclusion protein a + H2O
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the nuclear inclusion protein of potyviruses has two domains, the Vpg domain of 22 kDa and the C-terminal domain of 27 kDa which has proteolytic activity. The first cleavage at Ser223-Gly224 produces a 25 kDa protein. TuMV cleaves itself in cis, removing a 20 amino aicd peptide from the C-terminus. A second cleavage is very slow and occurs between Thr207-Ser208, resulting in a 24 kDa protein
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln-Ser-Gly-Thr-Val-Asp-Arg-Arg + H2O

Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln + Ser-Gly-Thr-Val-Asp-Arg-Arg
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Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln-Ser-Gly-Thr-Val-Asp-Arg-Arg + H2O
Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln + Ser-Gly-Thr-Val-Asp-Arg-Arg
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turnip mosaic virus polyprotein + H2O

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turnip mosaic potyvirus
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cleaved at seven differnt locations
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turnip mosaic virus polyprotein + H2O
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cleaved at seven differnt locations
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additional information

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interaction between purified recombinant NIa-Pro and VPg domains, overview
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additional information
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the enzyme interacts with proteins EIF3G, FBPA1, FK506BP, GTPBP, MSRB1, and MTL
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additional information
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the S3 and S4 pockets are mainly responsible for the substrate specificity, comparison to the specificity of the tobacco etch virus, TEV, protease, structural determinants of substrate specificity, overview. The TVMV protease is less tolerant of variation at the P1' position than TEV protease, and substitutions in the P6 position are more readily tolerated by TVMV than TEV protease
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additional information
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the S3 and S4 pockets are mainly responsible for the substrate specificity, comparison to the specificity of the tobacco etch virus, TEV, protease, structural determinants of substrate specificity, overview. The TVMV protease is less tolerant of variation at the P1' position than TEV protease, and substitutions in the P6 position are more readily tolerated by TVMV than TEV protease
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additional information
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turnip mosaic potyvirus
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consensus substrate sequence: Yaa-Val-Arg-His-Gln-/-Ser, with Yaa being a aliphatic amino acid and the scissile bond being located between Gln and Ser
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additional information
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consensus substrate sequence: Yaa-Val-Arg-His-Gln-/-Ser, with Yaa being a aliphatic amino acid and the scissile bond being located between Gln and Ser
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additional information
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NIa possesses a relatively strict substrate specificity with a preference for Val-Xaa-His-GlnQ, with the scissile bond located after Gln
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amyloid-beta + H2O
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nuclear inclusion protein a + H2O
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P-sG polyprotein + H2O
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additional information
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nuclear inclusion protein a + H2O

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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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identification of cleavage site
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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analysis of cleavage sites, specific for its own polypeptide chain, no cleavage of other potyvirus NIa proteins
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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analysis of cleavage sites, specific for its own polypeptide chain, no cleavage of other potyvirus NIa proteins
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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turnip mosaic potyvirus
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nuclear inclusion protein a + H2O
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turnip mosaic potyvirus
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the nuclear inclusion protein of potyviruses has two domains, the Vpg domain of 22 kDa and the C-terminal domain of 27 kDa which has proteolytic activity. The first cleavage at Ser223-Gly224 produces a 25 kDa protein. TuMV cleaves itself in cis, removing a 20 amino aicd peptide from the C-terminus. A second cleavage is very slow and occurs between Thr207-Ser208, resulting in a 24 kDa protein
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nuclear inclusion protein a + H2O
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the nuclear inclusion protein of potyviruses has two domains, the Vpg domain of 22 kDa and the C-terminal domain of 27 kDa which has proteolytic activity. The first cleavage at Ser223-Gly224 produces a 25 kDa protein. TuMV cleaves itself in cis, removing a 20 amino aicd peptide from the C-terminus. A second cleavage is very slow and occurs between Thr207-Ser208, resulting in a 24 kDa protein
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nuclear inclusion protein a + H2O
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nuclear inclusion protein a + H2O
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additional information

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interaction between purified recombinant NIa-Pro and VPg domains, overview
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additional information
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the enzyme interacts with proteins EIF3G, FBPA1, FK506BP, GTPBP, MSRB1, and MTL
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?
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Alzheimer Disease
Expression of the plant viral protease NIa in the brain of a mouse model of Alzheimer's disease mitigates A? pathology and improves cognitive function.
Infections
A set of host proteins interacting with papaya ringspot virus NIa-Pro protein identified in a yeast two-hybrid system.
Infections
A viral protease relocalizes in the presence of the vector to promote vector performance.
Infections
Functional regulation of PVBV Nuclear Inclusion protein-a protease activity upon interaction with Viral Protein genome-linked and phosphorylation.
Infections
Interaction network of tobacco etch potyvirus NIa protein with the host proteome during infection.
Infections
Localization of a potyvirus and the viral genome-linked protein in wild potato leaves at an early stage of systemic infection.
Infections
Optimizing the PBS1 Decoy System to Confer Resistance to Potyvirus Infection in Arabidopsis and Soybean.
Infections
Potyviral NIa proteinase, a proteinase with novel deoxyribonuclease activity.
Infections
Soybean RNA interference lines silenced for eIF4E show broad potyvirus resistance.
Infections
Strain-specific interaction of the tobacco etch virus NIa protein with the translation initiation factor eIF4E in the yeast two-hybrid system.
Infections
The NIa-Pro protein of Turnip mosaic virus improves growth and reproduction of the aphid vector, Myzus persicae (green peach aphid).
Infections
The NIa-Protease Protein Encoded by the Pepper Mottle Virus Is a Pathogenicity Determinant and Releases DNA Methylation of Nicotiana benthamiana.
Superinfection
The Coat Protein and NIa Protease of Two Potyviridae Family Members Independently Confer Superinfection Exclusion.
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0.217
acetyl-Arg-Glu-Thr-Val-Arg-Phe-Gln-Ser-Asp-amide
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0.216
acetyl-Asn-Asn-Val-Arg-Phe-Gln-Ser-Leu-amide
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0.51 - 2.83
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
0.069 - 0.271
Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln-Ser-Gly-Thr-Val-Asp-Arg-Arg
0.082 - 0.108
TETVRFQSGTRR
0.05 - 11.4
WDGGEVAHQAGESV
0.51
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide

turnip mosaic potyvirus
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27 kDa full length protease, pH 7.0, 12°C
0.52
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 7.4, 12°C
0.62
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 8.0, 12°C
1.14
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 7.0, 25°C
1.2
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 7.4, 25°C
2.22
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease
2.64
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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25 kDa protease
2.83
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 8.0, 25°C
0.069
Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln-Ser-Gly-Thr-Val-Asp-Arg-Arg

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27 kDa full length protease
0.271
Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln-Ser-Gly-Thr-Val-Asp-Arg-Arg
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truncated protease
0.082
TETVRFQSGTRR

recombinant wild-type TVMV protease, pH 7.0, 30°C
0.108
TETVRFQSGTRR
recombinant mutant TVMV1-217 protease, pH 7.0, 30°C
0.05
WDGGEVAHQAGESV

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recombinant S129D NIa-Pro mutant, pH 8.5, 25°C
0.06
WDGGEVAHQAGESV
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recombinant S129A NIa-Pro mutant, pH 8.5, 25°C
0.15
WDGGEVAHQAGESV
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recombinant S129D NIa-Pro mutant in presence of the VPg domain, pH 8.5, 25°C
0.44
WDGGEVAHQAGESV
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recombinant wild-type NIa-Pro, pH 8.5, 25°C
0.45
WDGGEVAHQAGESV
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recombinant E191A VPg-Pro mutant, pH 8.5, 25°C
0.69
WDGGEVAHQAGESV
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recombinant W143A NIa-Pro mutant, pH 8.5, 25°C
1.67
WDGGEVAHQAGESV
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recombinant VPg-Pro, pH 8.5, 25°C
11.4
WDGGEVAHQAGESV
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recombinant W143A NIa-Pro mutant in presence of the VPg domain, pH 8.5, 25°C
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0.079
acetyl-Arg-Glu-Thr-Val-Arg-Phe-Gln-Ser-Asp-amide
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0.071
acetyl-Asn-Asn-Val-Arg-Phe-Gln-Ser-Leu-amide
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0.12 - 1.01
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
0.033 - 0.18
Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln-Ser-Gly-Thr-Val-Asp-Arg-Arg
0.092 - 0.094
TETVRFQSGTRR
0.002 - 0.23
WDGGEVAHQAGESV
0.12
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide

turnip mosaic potyvirus
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27 kDa full length protease, pH 7.0, 12°C
0.19
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 7.0, 25°C
0.22
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 7.4, 12°C
0.32
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease
0.33
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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25 kDa protease
0.34
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 7.4, 25°C
0.373
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 8.0, 12°C
1.01
acetyl-Glu-Pro-Thr-Val-Tyr-His-Gln-Thr-Leu-amide
turnip mosaic potyvirus
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27 kDa full length protease, pH 8.0, 25°C
0.033
Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln-Ser-Gly-Thr-Val-Asp-Arg-Arg

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truncated protease
0.18
Pro-Thr-Thr-Glu-Leu-Tyr-Phe-Gln-Ser-Gly-Thr-Val-Asp-Arg-Arg
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27 kDa full length protease
0.092
TETVRFQSGTRR

recombinant wild-type TVMV protease, pH 7.0, 30°C
0.094
TETVRFQSGTRR
recombinant mutant TVMV1-217 protease, pH 7.0, 30°C
0.002
WDGGEVAHQAGESV

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recombinant W143A NIa-Pro mutant, pH 8.5, 25°C
0.004
WDGGEVAHQAGESV
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recombinant S129D NIa-Pro mutant, pH 8.5, 25°C
0.005
WDGGEVAHQAGESV
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recombinant S129A NIa-Pro mutant, pH 8.5, 25°C
0.006
WDGGEVAHQAGESV
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recombinant S129D NIa-Pro mutant in presence of the VPg domain, pH 8.5, 25°C
0.01
WDGGEVAHQAGESV
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recombinant W143A NIa-Pro mutant in presence of the VPg domain, pH 8.5, 25°C
0.034
WDGGEVAHQAGESV
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recombinant wild-type NIa-Pro, pH 8.5, 25°C
0.063
WDGGEVAHQAGESV
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recombinant E191A VPg-Pro mutant, pH 8.5, 25°C
0.23
WDGGEVAHQAGESV
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recombinant VPg-Pro, pH 8.5, 25°C
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physiological function

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the nuclear inclusion a protease of turnip mosaic virus is responsible for the processing of the viral polyprotein into functional proteins. Degradation of Amyloid-beta in the cytoplasm can be a novel strategy to control the levels of Amyloid-beta, plaque formation, and the associated cell death
physiological function
the TVMV genome is translated into a single large polyprotein that is subsequently processed by three virally encoded proteases. Seven of the nine cleavage events are carried out by the NIa protease
physiological function
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oligomeric amyloid beta-induced cytotoxicity and mitochondrial dysfunction are significantly ameliorated by the enzyme. The enzyme prevents mitochondrial deposition of amyloid beta
physiological function
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potyviral protein genome-linked, established as an intrinsically disordered domain, undergoes plausible structural alterations upon interaction with globular nuclear inclusion-a protease which induces the ATPase activity
physiological function
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protease NIa not only reduces amyloid-beta pathology, but also improves behavioral deficits in mice
physiological function
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the nuclear inclusion a-protease domain increases Myzus persicae growth and reproduction on both Nicotiana benthamiana and Arabidopsis thaliana
physiological function
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NIa-Pro responds to the presence of the aphid vector during infection by relocalizing to the vacuole. Remarkably, vacuolar localization is required for the ability of NIa-Pro to enhance aphid reproduction on host plants, vacuole localization disappears when aphids are removed
physiological function
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potyviral NIa targets many host elements during infection, establishing a network in which information is efficiently transmitted
additional information

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overexpression of NIa in rat B103 neuroblastoma cells results in a significant reduction in cell death caused by both intracellularly generated and exogenously added Amyloidbeta. Moreover, lentiviral-mediated expression of NIa in APPsw/PS1 transgenic mice significantly reduces the levels of Amyloid-beta and plaques in the brain
additional information
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the full-length potyviral genome protease, VPg-Pro, has two domains: an N-terminal viral protein genome-linked, VPg, and a C-terminal protease NIa-Pro. Regulation of nuclear inclusion protein-a protease is crucial for polyprotein processing and hence, for successful infection by potyviruses, mechanisms regulating nuclear inclusion protein-a protease activity. Firstly, the influence of the VPg domain on the proteolytic activity of NIa-Pro increases when the two domains interact each other. Secondly, the protease activity of NIa-Pro can also be modulated by phosphorylation at Ser129. interaction with VPg as well as phosphorylation of Ser129 relays a signal through Trp143 present at the protein surface to the active site pocket by subtle conformational changes, thus modulating protease activity of NIa-Pro, molecular modeling, homology modeling, and molecular dynamics simulations, overview
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