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Entry version 115 (12 Aug 2020)
Sequence version 1 (01 Jun 2002)
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Protein

Purple acid phosphatase 22

Gene

PAP22

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score:

Annotation score:3 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 transcript 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

<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

Protein has several cofactor binding sites:

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 bindingi148IronBy similarity1
Metal bindingi175IronBy similarity1
Metal bindingi175ZincBy similarity1
Metal bindingi178IronBy similarity1
Metal bindingi208ZincBy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei208SubstrateBy similarity1
Metal bindingi292ZincBy similarity1
<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 sitei302Proton donorBy similarity1
Metal bindingi329ZincBy similarity1
Metal bindingi331IronBy 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

  • acid phosphatase activity Source: TAIR
  • metal ion binding Source: UniProtKB-KW

<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 functionHydrolase
LigandIron, Metal-binding, Zinc

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
ARA:AT3G52820-MONOMER

<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:
Purple acid phosphatase 22 (EC:3.1.3.2)
<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:PAP22
Synonyms:AT6
Ordered Locus Names:At3g52820
ORF Names:F3C22.220
<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>OrganismiArabidopsis thaliana (Mouse-ear cress)
<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 identifieri3702 [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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
<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
  • UP000006548 <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

Organism-specific databases

Arabidopsis Information Portal

More...
Araporti
AT3G52820

The Arabidopsis Information Resource

More...
TAIRi
locus:2083238, AT3G52820

<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

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Secreted

<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 'PTM / Processing' section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 22Sequence analysisAdd BLAST22
<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_000037282523 – 434Purple acid phosphatase 22Add BLAST412

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi116N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi403N-linked (GlcNAc...) asparagineSequence analysis1

Keywords - PTMi

Glycoprotein

Proteomic databases

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

More...
PaxDbi
Q8S340

PRoteomics IDEntifications database

More...
PRIDEi
Q8S340

ProteomicsDB: a multi-organism proteome resource

More...
ProteomicsDBi
249023

<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, stems, leaves, flowers and siliques.1 Publication

Gene expression databases

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q8S340, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q8S340, AT

<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

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer.

By similarity

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
3702.AT3G52820.1

<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
Q8S340

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>Regioni329 – 331Substrate bindingBy similarity3

<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

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1378, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_013387_0_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q8S340

KEGG Orthology (KO)

More...
KOi
K22390

Identification of Orthologs from Complete Genome Data

More...
OMAi
NGPEFSF

Database of Orthologous Groups

More...
OrthoDBi
426430at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q8S340

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00839, MPP_PAPs, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.60.40.380, 1 hit
3.60.21.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR004843, Calcineurin-like_PHP_ApaH
IPR029052, Metallo-depent_PP-like
IPR041792, MPP_PAP
IPR039331, PPA-like
IPR008963, Purple_acid_Pase-like_N
IPR015914, Purple_acid_Pase_N
IPR025733, Purple_acid_PPase_C_dom

The PANTHER Classification System

More...
PANTHERi
PTHR22953, PTHR22953, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00149, Metallophos, 1 hit
PF14008, Metallophos_C, 1 hit
PF16656, Pur_ac_phosph_N, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF49363, SSF49363, 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.

Q8S340-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKLFGLFLSF TLLFLCPFIS QADVPELSRQ PPRPIVFVHN DRSKSDPQQV
60 70 80 90 100
HISLAGKDHM RVTFITEDNK VESVVEYGKQ PGKYDGKATG ECTSYKYFFY
110 120 130 140 150
KSGKIHHVKI GPLQANTTYY YRCGGNGPEF SFKTPPSTFP VEFAIVGDLG
160 170 180 190 200
QTEWTAATLS HINSQDYDVF LLPGDLSYAD THQPLWDSFG RLVEPLASKR
210 220 230 240 250
PWMVTEGNHE IEFFPIIEHT TFKSYNARWL MPHTESFSTS NLYYSFDVAG
260 270 280 290 300
VHTVMLGSYT DFDCESDQYQ WLQADLAKVD RKTTPWVVVL LHAPWYNTNE
310 320 330 340 350
AHEGEGESMR EAMESLLFNA RVDVVFSGHV HAYERFKRVY NNKADPCGPI
360 370 380 390 400
HITIGDGGNR EGLALSFKKP PSPLSEFRES SFGHGRLKVM DGKRAHWSWH
410 420 430
RNNDSNSLLA DEVWLDSLST SSSCWPSSRS NDEL
Length:434
Mass (Da):49,357
Last modified:June 1, 2002 - 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:i103381F91CB4EB00
GO

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence CAB89243 differs from that shown. Reason: Erroneous gene model prediction.Curated

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
AF492668 mRNA Translation: AAM15917.1
AL353912 Genomic DNA Translation: CAB89243.1 Sequence problems.
CP002686 Genomic DNA Translation: AEE78997.1
AK118546 mRNA Translation: BAC43148.1
BT006218 mRNA Translation: AAP12867.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T49035

NCBI Reference Sequences

More...
RefSeqi
NP_190850.2, NM_115142.5

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
AT3G52820.1; AT3G52820.1; AT3G52820

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
824448

Gramene; a comparative resource for plants

More...
Gramenei
AT3G52820.1; AT3G52820.1; AT3G52820

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ath:AT3G52820

<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
AF492668 mRNA Translation: AAM15917.1
AL353912 Genomic DNA Translation: CAB89243.1 Sequence problems.
CP002686 Genomic DNA Translation: AEE78997.1
AK118546 mRNA Translation: BAC43148.1
BT006218 mRNA Translation: AAP12867.1
PIRiT49035
RefSeqiNP_190850.2, NM_115142.5

3D structure databases

SMRiQ8S340
ModBaseiSearch...

Protein-protein interaction databases

STRINGi3702.AT3G52820.1

Proteomic databases

PaxDbiQ8S340
PRIDEiQ8S340
ProteomicsDBi249023

Genome annotation databases

EnsemblPlantsiAT3G52820.1; AT3G52820.1; AT3G52820
GeneIDi824448
GrameneiAT3G52820.1; AT3G52820.1; AT3G52820
KEGGiath:AT3G52820

Organism-specific databases

AraportiAT3G52820
TAIRilocus:2083238, AT3G52820

Phylogenomic databases

eggNOGiKOG1378, Eukaryota
HOGENOMiCLU_013387_0_0_1
InParanoidiQ8S340
KOiK22390
OMAiNGPEFSF
OrthoDBi426430at2759
PhylomeDBiQ8S340

Enzyme and pathway databases

BioCyciARA:AT3G52820-MONOMER

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q8S340

Gene expression databases

ExpressionAtlasiQ8S340, baseline and differential
GenevisibleiQ8S340, AT

Family and domain databases

CDDicd00839, MPP_PAPs, 1 hit
Gene3Di2.60.40.380, 1 hit
3.60.21.10, 1 hit
InterProiView protein in InterPro
IPR004843, Calcineurin-like_PHP_ApaH
IPR029052, Metallo-depent_PP-like
IPR041792, MPP_PAP
IPR039331, PPA-like
IPR008963, Purple_acid_Pase-like_N
IPR015914, Purple_acid_Pase_N
IPR025733, Purple_acid_PPase_C_dom
PANTHERiPTHR22953, PTHR22953, 1 hit
PfamiView protein in Pfam
PF00149, Metallophos, 1 hit
PF14008, Metallophos_C, 1 hit
PF16656, Pur_ac_phosph_N, 1 hit
SUPFAMiSSF49363, SSF49363, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

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 nameiPPA22_ARATH
<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: Q8S340
Secondary accession number(s): Q8GWZ2, Q9LXI3
<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: May 5, 2009
Last sequence update: June 1, 2002
Last modified: August 12, 2020
This is version 115 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

Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. SIMILARITY comments
    Index of protein domains and families
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