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Entry version 101 (02 Jun 2021)
Sequence version 1 (22 Aug 2006)
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Protein

L-ascorbate peroxidase 1, cytosolic

Gene

APX1

Organism
Oryza sativa subsp. japonica (Rice)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Plays a key role in hydrogen peroxide removal.

1 Publication

Miscellaneous

Binds one cation per subunit; probably K+, but might also be Ca2+.By similarity

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

heme bBy similarityNote: Binds 1 heme b (iron(II)-protoporphyrin IX) group.By similarity

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Inhibited by p-chloromercuriphenylsulfonic acid (CMPSA).1 Publication

<p>This subsection of the 'Function' section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>Kineticsi

  1. KM=4 mM for ascorbate1 Publication
  2. KM=0.3 mM for H2O21 Publication
  1. Vmax=15 mM/min/mg enzyme with ascorbate as substrate1 Publication
  2. Vmax=1 mM/min/mg enzyme with H2O2 as substrate1 Publication

pH dependencei

Optimum pH is 6-7.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei38Transition state stabilizerPROSITE-ProRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei42Proton acceptorPROSITE-ProRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi163Iron (heme b axial ligand)PROSITE-ProRule annotation1
Metal bindingi164PotassiumBy similarity1
Metal bindingi180PotassiumBy similarity1
Metal bindingi182PotassiumBy similarity1
Metal bindingi187PotassiumBy similarity1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionOxidoreductase, Peroxidase
Biological processHydrogen peroxide, Stress response
LigandCalcium, Heme, Iron, Metal-binding, Potassium

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
1.11.1.11, 4460

SABIO-RK: Biochemical Reaction Kinetics Database

More...
SABIO-RKi
Q10N21

Protein family/group databases

PeroxiBase, a peroxidase database

More...
PeroxiBasei
1865, OsAPx01

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
L-ascorbate peroxidase 1, cytosolicCurated (EC:1.11.1.111 Publication)
Short name:
APXa1 Publication
Alternative name(s):
OsAPx11 Publication
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:APX11 Publication
Ordered Locus Names:Os03g0285700Imported, LOC_Os03g17690Imported
ORF Names:OsJ_009999Imported, OSJNBa0013D02.10Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiOryza sativa subsp. japonica (Rice)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri39947 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaLiliopsidaPoalesPoaceaeBOP cladeOryzoideaeOryzeaeOryzinaeOryzaOryza sativa
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000007752 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 3
  • UP000059680 Componenti: Chromosome 3
  • UP000000763 Componenti: Chromosome 3

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

Cytoplasm

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved2 Publications
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000555932 – 250L-ascorbate peroxidase 1, cytosolicAdd BLAST249

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q10N21

PRoteomics IDEntifications database

More...
PRIDEi
Q10N21

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Expressed in roots, aerial vegetative parts and reproductive organs (PubMed:14644501, Ref. 1). Expressed in roots, leaves, stems and flowers (PubMed:16397796).3 Publications

<p>This subsection of the 'Expression' section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

By stress and hormones. By infection with rice blast fungus (M.grisea). Circadian-regulation. Expression is higher during the light phase than during the dark phase. Induced by hydrogen peroxide in leaves (PubMed:25546583).4 Publications

Gene expression databases

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q10N21, OS

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
4530.OS03T0285700-01

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q10N21

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni113 – 137DisorderedSequence analysisAdd BLAST25

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular type of amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi121 – 137Basic and acidic residuesSequence analysisAdd BLAST17

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG502QR1E, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_036959_3_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q10N21

Identification of Orthologs from Complete Genome Data

More...
OMAi
MAKNYPV

Database of Orthologous Groups

More...
OrthoDBi
1228462at2759

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR002016, Haem_peroxidase
IPR010255, Haem_peroxidase_sf
IPR002207, Peroxidase_I
IPR019794, Peroxidases_AS
IPR019793, Peroxidases_heam-ligand_BS

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00141, peroxidase, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00459, ASPEROXIDASE
PR00458, PEROXIDASE

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF48113, SSF48113, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00435, PEROXIDASE_1, 1 hit
PS00436, PEROXIDASE_2, 1 hit
PS50873, PEROXIDASE_4, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

Q10N21-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAKNYPVVSA EYQEAVEKAR QKLRALIAEK SCAPLMLRLA WHSAGTFDVS
60 70 80 90 100
SKTGGPFGTM KTPAELSHAA NAGLDIAVRM LEPIKEEIPT ISYADFYQLA
110 120 130 140 150
GVVAVEVSGG PAVPFHPGRE DKPAPPPEGR LPDATKGSDH LRQVFGAQMG
160 170 180 190 200
LSDQDIVALS GGHTLGRCHK ERSGFEGPWT RNPLQFDNSY FTELLSGDKE
210 220 230 240 250
GLLQLPSDKA LLSDPAFRPL VEKYAADEKA FFEDYKEAHL KLSELGFADA
Length:250
Mass (Da):27,156
Last modified:August 22, 2006 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i637D70B191CC92E9
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
D45423 mRNA Translation: BAA08264.1
GQ848050 mRNA Translation: ADM86863.1
AC134232 Genomic DNA Translation: AAO17000.1
DP000009 Genomic DNA Translation: ABF95353.1
AP008209 Genomic DNA Translation: BAF11683.1
AP014959 Genomic DNA Translation: BAS83623.1
CM000140 Genomic DNA Translation: EAZ26516.1
AK061841 mRNA Translation: BAG88141.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T03595

NCBI Reference Sequences

More...
RefSeqi
XP_015630498.1, XM_015775012.1

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
Os03t0285700-01; Os03t0285700-01; Os03g0285700

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
4332474

Gramene; a comparative resource for plants

More...
Gramenei
Os03t0285700-01; Os03t0285700-01; Os03g0285700

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
osa:4332474

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D45423 mRNA Translation: BAA08264.1
GQ848050 mRNA Translation: ADM86863.1
AC134232 Genomic DNA Translation: AAO17000.1
DP000009 Genomic DNA Translation: ABF95353.1
AP008209 Genomic DNA Translation: BAF11683.1
AP014959 Genomic DNA Translation: BAS83623.1
CM000140 Genomic DNA Translation: EAZ26516.1
AK061841 mRNA Translation: BAG88141.1
PIRiT03595
RefSeqiXP_015630498.1, XM_015775012.1

3D structure databases

SMRiQ10N21
ModBaseiSearch...

Protein-protein interaction databases

STRINGi4530.OS03T0285700-01

Protein family/group databases

PeroxiBasei1865, OsAPx01

Proteomic databases

PaxDbiQ10N21
PRIDEiQ10N21

Genome annotation databases

EnsemblPlantsiOs03t0285700-01; Os03t0285700-01; Os03g0285700
GeneIDi4332474
GrameneiOs03t0285700-01; Os03t0285700-01; Os03g0285700
KEGGiosa:4332474

Phylogenomic databases

eggNOGiENOG502QR1E, Eukaryota
HOGENOMiCLU_036959_3_0_1
InParanoidiQ10N21
OMAiMAKNYPV
OrthoDBi1228462at2759

Enzyme and pathway databases

BRENDAi1.11.1.11, 4460
SABIO-RKiQ10N21

Gene expression databases

GenevisibleiQ10N21, OS

Family and domain databases

InterProiView protein in InterPro
IPR002016, Haem_peroxidase
IPR010255, Haem_peroxidase_sf
IPR002207, Peroxidase_I
IPR019794, Peroxidases_AS
IPR019793, Peroxidases_heam-ligand_BS
PfamiView protein in Pfam
PF00141, peroxidase, 1 hit
PRINTSiPR00459, ASPEROXIDASE
PR00458, PEROXIDASE
SUPFAMiSSF48113, SSF48113, 1 hit
PROSITEiView protein in PROSITE
PS00435, PEROXIDASE_1, 1 hit
PS00436, PEROXIDASE_2, 1 hit
PS50873, PEROXIDASE_4, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiAPX1_ORYSJ
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q10N21
Secondary accession number(s): B7E6Z4
, P93404, Q84QS3, Q8GZZ2
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: September 11, 2007
Last sequence update: August 22, 2006
Last modified: June 2, 2021
This is version 101 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Direct protein sequencing, Reference proteome

Documents

  1. Oryza sativa (rice)
    Index of Oryza sativa entries and their corresponding gene designations
  2. SIMILARITY comments
    Index of protein domains and families
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