LOC4344397 L-ascorbate peroxidase 2, cytosolic-like [Oryza sativa Japonica Group (Japanese rice)] - Gene

Summary

Gene symbol: LOC4344397
Gene description: L-ascorbate peroxidase 2, cytosolic-like
Locus tag: OSNPB_070694700
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Oryza sativa Japonica Group
Lineage: Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade; Oryzoideae; Oryzeae; Oryzinae; Oryza; Oryza sativa
Also known as: APX2; APXb; SS622; OsAPx2; OsAPx02; OsJ_25704
Expression: Ubiquitous expression in flowers (RPKM 239.4), flower buds (RPKM 180.3) and 6 other tissues See more
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Genomic context

Location:: chromosome: 7

Exon count:: 9

Annotation release	Status	Assembly	Chr	Location
102	current	IRGSP-1.0 (GCF_001433935.1)	7	NC_029262.1 (29584030..29586347, complement)

Chromosome 7 - NC_029262.1 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:: NC_029262.1 Chromosome 7 Reference IRGSP-1.0 Primary Assembly

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Expression

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See details

Project title: Transcriptome profiling of various organs at different developmental stages in rice
Description: Transcriptom profiling in flower buds, flowers, flag leaves and roots sampled before flowering and after flowering, milk grains and mature seeds
BioProject: PRJNA243371
Publication: PMID 26387578
Analysis date: Fri Dec 15 20:02:59 2017

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

The different functions of OsAPX2 correlate strongly with its structural conformation. The high-molecular-weight (HMW) complexes had chaperone activity, whereas the low-molecular-weight (LMW) forms displayed predominantly APX activity. The APX activity was effectively inhibited by sodium azide, which is an inhibitor of haem-containing enzymes, but this did not affect the protein's activity as a chaperone.
Title: Functional switching of ascorbate peroxidase 2 of rice (OsAPX2) between peroxidase and molecular chaperone.
cytosolic APX2 is a pleiotropic protein and an important regulator in reactive oxygen species homeostasis, chloroplast protection, carbohydrate metabolism as well as plant architecture and fertility maintenance.
Title: Cytosolic APX2 is a pleiotropic protein involved in H(2)O(2) homeostasis, chloroplast protection, plant architecture and fertility maintenance.
Higher APX activity enhances H2O2-scavenging capacity and protects spikelets from lipid peroxidation, thereby increasing spikelet fertility under cold stress.
Title: Enhanced chilling tolerance at the booting stage in rice by transgenic overexpression of the ascorbate peroxidase gene, OsAPXa.
Exogenously applied H2O2 enhanced the activity and expression of ascorbaate peroxidase.
Title: Expression of ascorbate peroxidase and glutathione reductase in roots of rice seedlings in response to NaCl and H2O2.
These findings reveal the functional diversity of the rice APx genes and suggest complementation and coordination of the antioxidant defenses in different cellular compartments during development and abiotic stress.
Title: Rice ascorbate peroxidase gene family encodes functionally diverse isoforms localized in different subcellular compartments.

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General gene information

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Gene Ontology Provided by RefSeq

Function	Evidence Code	Pubs
enables heme binding	IEA Inferred from Electronic Annotation more info	PubMed
enables peroxidase activity	IEA Inferred from Electronic Annotation more info	PubMed

Process	Evidence Code	Pubs
involved_in cellular response to oxidative stress	IEA Inferred from Electronic Annotation more info	PubMed
involved_in hydrogen peroxide catabolic process	IEA Inferred from Electronic Annotation more info	PubMed
involved_in response to reactive oxygen species	IEA Inferred from Electronic Annotation more info	PubMed

General protein information

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Preferred Names: L-ascorbate peroxidase 2, cytosolic

Names: LOC_Os07g49400; P0627E10.14; ascorbate peroxidase

XP_015646556.1

EC 1.11.1.11

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

NM_001403284.1 → NP_001390213.1 L-ascorbate peroxidase 2, cytosolic

Status: VALIDATED

Source sequence(s)

AK068430, CI248327, CI759458, GQ848056

UniProtKB/Swiss-Prot

Q0D3B8, Q40735, Q9FE01

UniProtKB/TrEMBL

A0A345YV75, B8B6B6

RefSeqs of Annotated Genomes: Oryza sativa Japonica Group Annotation Release 102 details...

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference IRGSP-1.0 Primary Assembly

Genomic

NC_029262.1 Reference IRGSP-1.0 Primary Assembly

Range

29584030..29586347 complement

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GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

XM_015791070.2 → XP_015646556.1 L-ascorbate peroxidase 2, cytosolic

UniProtKB/Swiss-Prot

Q9FE01

Conserved Domains (1) summary

cl00196
Location:3 → 248

plant_peroxidase_like; Heme-dependent peroxidases similar to plant peroxidases