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Entry version 107 (29 Sep 2021)
Sequence version 1 (01 Oct 2000)
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Protein

Probable pectin methylesterase CGR2

Gene

CGR2

Organism
Arabidopsis thaliana (Mouse-ear cress)
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 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

Together with CGR3, required for homogalacturonan pectins (HG) methylesterification in the Golgi apparatus prior to integration into cell walls, essential for general growth and development (PubMed:25704846, PubMed:27208234).

Promotes rosette growth (PubMed:25704846).

Impacts carbon (C) partitioning, photosynthesis and respiration efficiency by influencing leaf mesophyll cell walls morphology and physiology; pectin methylesterification modulates both expansion and positioning of cells in leaves, probably by changing cell walls plasticity (PubMed:27208234).

2 Publications

<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 functionMethyltransferase, Transferase
Biological processCell wall biogenesis/degradation

<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:
Probable pectin methylesterase CGR21 Publication (EC:2.1.1.-1 Publication)
Alternative name(s):
Cotton Golgi-related 21 Publication
<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:CGR21 Publication
Ordered Locus Names:At3g49720Imported
ORF Names:T16K5.70Imported
<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 3

Organism-specific databases

Arabidopsis Information Portal

More...
Araporti
AT3G49720

The Arabidopsis Information Resource

More...
TAIRi
locus:2097380, AT3G49720

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 35Cytoplasmic1 PublicationAdd BLAST35
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei36 – 56HelicalSequence analysisAdd BLAST21
Topological domaini57 – 261Lumenal1 PublicationAdd BLAST205

Keywords - Cellular componenti

Golgi apparatus, Membrane

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

<p>This subsection of the 'Pathology and Biotech' section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Plants lacking both CGR2 and CGR3 (cgr2-1 cgr3-1) exihibit severe defects in plant growth and development (e.g. shorter hypocotyl and primary root length due to reduced cell elongation, and abnormal pollen tube elongation), as well as reduced levels of pectin methylesterification associated with decreased microsomal pectin methyltransferase activity. The double mutant cgr2-1 cgr3-1 also lacks uronic acids and methyl ester (PubMed:25704846). Reduced HG methylesterification in cgr2-1 cgr3-1 double mutant results in thin but dense leaf mesophyll that limits CO2 diffusion to chloroplasts and reduces leaf area, thus impairing photosynthesis efficiency and carbon (C) partitioning (PubMed:27208234).2 Publications

<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 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_00003001091 – 261Probable pectin methylesterase CGR2Add BLAST261

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>Glycosylationi174N-linked (GlcNAc...) asparaginePROSITE-ProRule annotation1

Keywords - PTMi

Glycoprotein

Proteomic databases

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

More...
PaxDbi
Q9M2Y6

PRoteomics IDEntifications database

More...
PRIDEi
Q9M2Y6

ProteomicsDB: a multi-organism proteome resource

More...
ProteomicsDBi
224299

PTM databases

SwissPalm database of S-palmitoylation events

More...
SwissPalmi
Q9M2Y6

<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

Gene expression databases

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q9M2Y6, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q9M2Y6, 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

Protein interaction database and analysis system

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IntActi
Q9M2Y6, 1 interactor

STRING: functional protein association networks

More...
STRINGi
3702.AT3G49720.2

<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
Q9M2Y6

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

<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

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG502QR9D, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_071215_0_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q9M2Y6

Identification of Orthologs from Complete Genome Data

More...
OMAi
CTSEVHQ

Database of Orthologous Groups

More...
OrthoDBi
1210334at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q9M2Y6

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR044689, CGR2/3
IPR029063, SAM-dependent_MTases

The PANTHER Classification System

More...
PANTHERi
PTHR34208, PTHR34208, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF53335, SSF53335, 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>Sequencei

<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.

Q9M2Y6-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MARRQVGSTR RVGDGGSFPF AGALHSKSRS SPLLSICLVL VGACLLIGYA
60 70 80 90 100
YSGPGIFKSI KEVSKVTGDY SCTAEVQRAI PVLKKAYGDG MRKVLHVGPD
110 120 130 140 150
TCSVVSSLLK EEETEAWGVE PYDIEDADSH CKSFVSKGLV RVADIKFPLP
160 170 180 190 200
YRAKSFSLVI VSDALDYLSP KYLNKTVPEL ARVASDGVVL FAGLPGQQRA
210 220 230 240 250
KVAELSKFGR PAKMRSASWW NRFFVQTNLE ENDAPSKKFE QAVSKGLYKP
260
ACQVFHLKPL H
Length:261
Mass (Da):28,532
Last modified:October 1, 2000 - 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:i1508A8E3BD07D67F
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 AAL24420 differs from that shown. Reason: Erroneous initiation. Truncated N-terminus.Curated

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AY087451 mRNA Translation: AAM64997.1
AL132965 Genomic DNA Translation: CAB66910.1
CP002686 Genomic DNA Translation: AEE78580.1
CP002686 Genomic DNA Translation: AEE78581.1
CP002686 Genomic DNA Translation: ANM64296.1
AK317656 mRNA Translation: BAH20317.1
AY059938 mRNA Translation: AAL24420.1 Different initiation.
AY114597 mRNA Translation: AAM47916.1

Protein sequence database of the Protein Information Resource

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PIRi
T46038

NCBI Reference Sequences

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RefSeqi
NP_001078265.1, NM_001084796.1
NP_001326335.1, NM_001339437.1
NP_566924.1, NM_114832.4

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
AT3G49720.1; AT3G49720.1; AT3G49720
AT3G49720.2; AT3G49720.2; AT3G49720
AT3G49720.3; AT3G49720.3; AT3G49720

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
824134

Gramene; a comparative resource for plants

More...
Gramenei
AT3G49720.1; AT3G49720.1; AT3G49720
AT3G49720.2; AT3G49720.2; AT3G49720
AT3G49720.3; AT3G49720.3; AT3G49720

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ath:AT3G49720

<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
AY087451 mRNA Translation: AAM64997.1
AL132965 Genomic DNA Translation: CAB66910.1
CP002686 Genomic DNA Translation: AEE78580.1
CP002686 Genomic DNA Translation: AEE78581.1
CP002686 Genomic DNA Translation: ANM64296.1
AK317656 mRNA Translation: BAH20317.1
AY059938 mRNA Translation: AAL24420.1 Different initiation.
AY114597 mRNA Translation: AAM47916.1
PIRiT46038
RefSeqiNP_001078265.1, NM_001084796.1
NP_001326335.1, NM_001339437.1
NP_566924.1, NM_114832.4

3D structure databases

SMRiQ9M2Y6
ModBaseiSearch...

Protein-protein interaction databases

IntActiQ9M2Y6, 1 interactor
STRINGi3702.AT3G49720.2

PTM databases

SwissPalmiQ9M2Y6

Proteomic databases

PaxDbiQ9M2Y6
PRIDEiQ9M2Y6
ProteomicsDBi224299

Genome annotation databases

EnsemblPlantsiAT3G49720.1; AT3G49720.1; AT3G49720
AT3G49720.2; AT3G49720.2; AT3G49720
AT3G49720.3; AT3G49720.3; AT3G49720
GeneIDi824134
GrameneiAT3G49720.1; AT3G49720.1; AT3G49720
AT3G49720.2; AT3G49720.2; AT3G49720
AT3G49720.3; AT3G49720.3; AT3G49720
KEGGiath:AT3G49720

Organism-specific databases

AraportiAT3G49720
TAIRilocus:2097380, AT3G49720

Phylogenomic databases

eggNOGiENOG502QR9D, Eukaryota
HOGENOMiCLU_071215_0_0_1
InParanoidiQ9M2Y6
OMAiCTSEVHQ
OrthoDBi1210334at2759
PhylomeDBiQ9M2Y6

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q9M2Y6

Gene expression databases

ExpressionAtlasiQ9M2Y6, baseline and differential
GenevisibleiQ9M2Y6, AT

Family and domain databases

InterProiView protein in InterPro
IPR044689, CGR2/3
IPR029063, SAM-dependent_MTases
PANTHERiPTHR34208, PTHR34208, 1 hit
SUPFAMiSSF53335, SSF53335, 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 nameiCGR2_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: Q9M2Y6
Secondary accession number(s): B9DHV0, Q93YM8
<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: September 11, 2007
Last sequence update: October 1, 2000
Last modified: September 29, 2021
This is version 107 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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