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Entry version 126 (31 Jul 2019)
Sequence version 1 (01 Nov 1999)
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Protein

Pollen-specific leucine-rich repeat extensin-like protein 2

Gene

PEX2

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 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

Modulates cell morphogenesis by regulating cell wall formation and assembly, and/or growth polarization.By similarity

<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

Biological processCell wall biogenesis/degradation

Protein family/group databases

Transport Classification Database

More...
TCDBi
3.A.20.1.2 the peroxisomal protein importer (ppi) family

<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_and_taxonomy_section">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:
Pollen-specific leucine-rich repeat extensin-like protein 2
Short name:
AtPEX2
Short name:
Pollen-specific LRR/EXTENSIN2
Alternative name(s):
Cell wall hydroxyproline-rich glycoprotein
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:PEX2
Ordered Locus Names:At1g49490
ORF Names:F13F21.7
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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_and_taxonomy_section">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_and_taxonomy_section">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_and_taxonomy_section">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_manual">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 1

Organism-specific databases

Arabidopsis Information Portal

More...
Araporti
AT1G49490

The Arabidopsis Information Resource

More...
TAIRi
locus:2010247 AT1G49490

<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

Cell wall, 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 – 20Sequence analysisAdd BLAST20
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000039546921 – 847Pollen-specific leucine-rich repeat extensin-like protein 2Add BLAST827

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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>Glycosylationi260N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi274N-linked (GlcNAc...) asparagineSequence analysis1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Hydroxylated on proline residues in the S-P-P-P-P repeat.By similarity
O-glycosylated on hydroxyprolines.By similarity

Keywords - PTMi

Glycoprotein, Hydroxylation

Proteomic databases

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

More...
PaxDbi
Q9XIB6

PRoteomics IDEntifications database

More...
PRIDEi
Q9XIB6

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q9XIB6

<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 flowers, stamen, pollen, and pollinated carpels (at protein level).1 Publication

Gene expression databases

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q9XIB6 baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q9XIB6 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

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
3702.AT1G49490.1

<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
Q9XIB6

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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati45 – 71LRR 1Add BLAST27
Repeati106 – 130LRR 2Add BLAST25
Repeati131 – 153LRR 3Add BLAST23
Repeati155 – 178LRR 4Add BLAST24
Repeati179 – 202LRR 5Add BLAST24
Repeati204 – 224LRR 6Add BLAST21
Repeati226 – 248LRR 7Add BLAST23
Repeati249 – 273LRR 8Add BLAST25
Repeati296 – 319LRR 9Add BLAST24
Repeati321 – 343LRR 10Add BLAST23

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>Regioni522 – 847Contains the Ser-Pro(4) repeatsAdd BLAST326

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 amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi394 – 842Pro-richAdd BLAST449
Compositional biasi672 – 811Ser-richAdd BLAST140

Keywords - Domaini

Leucine-rich repeat, Repeat, Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG410IMQZ Eukaryota
ENOG410Y973 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000243909

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q9XIB6

Database of Orthologous Groups

More...
OrthoDBi
725535at2759

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.80.10.10, 2 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR032675 LRR_dom_sf
IPR013210 LRR_N_plant-typ

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF08263 LRRNT_2, 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_length">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>Sequence (1+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

This entry has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All

Q9XIB6-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MERPFGCFFI LLLISYTVVA TFDDEPSFPE NADLTKDLEQ KCFSINKVDP
60 70 80 90 100
NLKFENDRLK RAYIALQAWK KAIYSDPFKT TANWVGSDVC SYNGVYCAPA
110 120 130 140 150
LDDDSLTVVA GVDLNHADIA GHLPPELGLM TDLALFHINS NRFCGIIPKS
160 170 180 190 200
LSKLALMYEF DVSNNRFVGQ FPEVSLSWPS LKFLDLRYNE FEGSLPSEIF
210 220 230 240 250
DKDLDAIFLN NNRFESVIPG TIGKSKASVV TFANNKFSGC IPKSIGNMKN
260 270 280 290 300
LNEIVFTGNN LTGCFPNEIG LLNNVTVFDA SKNGFVGSLP STLSGLASVE
310 320 330 340 350
QLDLSHNKLT GFVVDKFCKL PNLDSFKFSY NFFNGEAESC VPGRNNGKQF
360 370 380 390 400
DDTNNCLQNR PSQKPAKQCL PVVSRPVDCS KDKCSGGSNG GSSPSPNPPR
410 420 430 440 450
TSEPKPSKPE PVMPKPSDSS KPETPKTPEQ PSPKPQPPKH ESPKPEEPEN
460 470 480 490 500
KHELPKQKES PKPQPSKPED SPKPEQPKPE ESPKPEQPQI PEPTKPVSPP
510 520 530 540 550
NEAQGPTPDD PYDASPVKNR RSPPPPKVED TRVPPPQPPM PSPSPPSPIY
560 570 580 590 600
SPPPPVHSPP PPVYSSPPPP HVYSPPPPVA SPPPPSPPPP VHSPPPPPVF
610 620 630 640 650
SPPPPVFSPP PPSPVYSPPP PSHSPPPPVY SPPPPTFSPP PTHNTNQPPM
660 670 680 690 700
GAPTPTQAPT PSSETTQVPT PSSESDQSQI LSPVQAPTPV QSSTPSSEPT
710 720 730 740 750
QVPTPSSSES YQAPNLSPVQ APTPVQAPTT SSETSQVPTP SSESNQSPSQ
760 770 780 790 800
APTPILEPVH APTPNSKPVQ SPTPSSEPVS SPEQSEEVEA PEPTPVNPSS
810 820 830 840
VPSSSPSTDT SIPPPENNDD DDDGDFVLPP HIGFQYASPP PPMFQGY
Length:847
Mass (Da):90,990
Last modified:November 1, 1999 - 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:i805ACA515A498005
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A0A1P8AMX0A0A1P8AMX0_ARATH
Leucine-rich repeat (LRR) family pr...
At1g49490, F13F21.7, F13F21_7
852Annotation score:

Annotation score:1 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>

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
AC007504 Genomic DNA Translation: AAD43152.1
CP002684 Genomic DNA Translation: AEE32435.1

Protein sequence database of the Protein Information Resource

More...
PIRi
F96531

NCBI Reference Sequences

More...
RefSeqi
NP_175372.1, NM_103837.2

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
AT1G49490.1; AT1G49490.1; AT1G49490

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
841373

Gramene; a comparative resource for plants

More...
Gramenei
AT1G49490.1; AT1G49490.1; AT1G49490

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ath:AT1G49490

<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
AC007504 Genomic DNA Translation: AAD43152.1
CP002684 Genomic DNA Translation: AEE32435.1
PIRiF96531
RefSeqiNP_175372.1, NM_103837.2

3D structure databases

SMRiQ9XIB6
ModBaseiSearch...

Protein-protein interaction databases

STRINGi3702.AT1G49490.1

Protein family/group databases

TCDBi3.A.20.1.2 the peroxisomal protein importer (ppi) family

PTM databases

iPTMnetiQ9XIB6

Proteomic databases

PaxDbiQ9XIB6
PRIDEiQ9XIB6

Genome annotation databases

EnsemblPlantsiAT1G49490.1; AT1G49490.1; AT1G49490
GeneIDi841373
GrameneiAT1G49490.1; AT1G49490.1; AT1G49490
KEGGiath:AT1G49490

Organism-specific databases

AraportiAT1G49490
TAIRilocus:2010247 AT1G49490

Phylogenomic databases

eggNOGiENOG410IMQZ Eukaryota
ENOG410Y973 LUCA
HOGENOMiHOG000243909
InParanoidiQ9XIB6
OrthoDBi725535at2759

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q9XIB6

Gene expression databases

ExpressionAtlasiQ9XIB6 baseline and differential
GenevisibleiQ9XIB6 AT

Family and domain databases

Gene3Di3.80.10.10, 2 hits
InterProiView protein in InterPro
IPR032675 LRR_dom_sf
IPR013210 LRR_N_plant-typ
PfamiView protein in Pfam
PF08263 LRRNT_2, 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 nameiPLRX2_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: Q9XIB6
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 13, 2010
Last sequence update: November 1, 1999
Last modified: July 31, 2019
This is version 126 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

Complete proteome, Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
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