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Entry version 64 (31 Jul 2019)
Sequence version 1 (28 Jun 2011)
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Protein

Alpha carbonic anhydrase 4

Gene

ACA4

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

Annotation score:4 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>
-Protein inferred from homologyi <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

Reversible hydration of carbon dioxide.By similarity

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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

Zn2+By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 sitei99Proton acceptorPROSITE-ProRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 bindingi125Zinc; catalyticPROSITE-ProRule annotation1
Metal bindingi127Zinc; catalyticPROSITE-ProRule annotation1
Metal bindingi144Zinc; catalyticPROSITE-ProRule annotation1

<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

<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 functionLyase
LigandMetal-binding, Zinc

<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:
Alpha carbonic anhydrase 4 (EC:4.2.1.1)
Short name:
AtaCA4
Short name:
AtalphaCA4
Alternative name(s):
Alpha carbonate dehydratase 4
<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:ACA4
Ordered Locus Names:At4g20990
ORF Names:T13K14.150
<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 4

Organism-specific databases

Arabidopsis Information Portal

More...
Araporti
AT4G20990

The Arabidopsis Information Resource

More...
TAIRi
locus:2133119 AT4G20990

<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

Chloroplast, Plastid

<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 – 26Sequence analysisAdd BLAST26
<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_000042973027 – 267Alpha carbonic anhydrase 4Add BLAST241

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>Glycosylationi22N-linked (GlcNAc...) asparagineSequence analysis1
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi59 ↔ 214By similarity
Glycosylationi135N-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

N-glycosylated.By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

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

More...
PaxDbi
F4JIK2

<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
F4JIK2 differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
F4JIK2 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

More...
IntActi
F4JIK2, 2 interactors

STRING: functional protein association networks

More...
STRINGi
3702.AT4G20990.1

<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
F4JIK2

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 <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini34 – 264Alpha-carbonic anhydrasePROSITE-ProRule annotationAdd BLAST231

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>Regioni210 – 211Substrate bindingBy similarity2

<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
KOG0382 Eukaryota
COG3338 LUCA

KEGG Orthology (KO)

More...
KOi
K01674

Identification of Orthologs from Complete Genome Data

More...
OMAi
FFHVNAP

Database of Orthologous Groups

More...
OrthoDBi
1377476at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd03124 alpha_CA_prokaryotic_like, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.10.200.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR041891 Alpha_CA_prokaryot-like
IPR001148 CA_dom
IPR036398 CA_dom_sf
IPR023561 Carbonic_anhydrase_a-class
IPR018338 Carbonic_anhydrase_a-class_CS

The PANTHER Classification System

More...
PANTHERi
PTHR18952 PTHR18952, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00194 Carb_anhydrase, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM01057 Carb_anhydrase, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF51069 SSF51069, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00162 ALPHA_CA_1, 1 hit
PS51144 ALPHA_CA_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>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.

<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.

F4JIK2-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MDTNAKTIFF MAMCFIYLSF PNISHAHSEV DDETPFTYEQ KTEKGPEGWG
60 70 80 90 100
KINPHWKVCN TGRYQSPIDL TNERVSLIHD QAWTRQYKPA PAVITNRGHD
110 120 130 140 150
IMVSWKGDAG KMTIRKTDFN LVQCHWHSPS EHTVNGTRYD LELHMVHTSA
160 170 180 190 200
RGRTAVIGVL YKLGEPNEFL TKLLNGIKAV GNKEINLGMI DPREIRFQTR
210 220 230 240 250
KFYRYIGSLT VPPCTEGVIW TVVKRVNTIS MEQITALRQA VDDGFETNSR
260
PVQDSKGRSV WFYDPNV
Length:267
Mass (Da):30,593
Last modified:June 28, 2011 - 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:iB420D4D91F22BDA1
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 CAB45894 differs from that shown. Reason: Erroneous gene model prediction.Curated
The sequence CAB79099 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
AL080282 Genomic DNA Translation: CAB45894.1 Sequence problems.
AL161554 Genomic DNA Translation: CAB79099.1 Sequence problems.
CP002687 Genomic DNA Translation: AEE84385.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T10641

NCBI Reference Sequences

More...
RefSeqi
NP_193831.1, NM_118217.2

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
AT4G20990.1; AT4G20990.1; AT4G20990

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
827846

Gramene; a comparative resource for plants

More...
Gramenei
AT4G20990.1; AT4G20990.1; AT4G20990

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ath:AT4G20990

<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
AL080282 Genomic DNA Translation: CAB45894.1 Sequence problems.
AL161554 Genomic DNA Translation: CAB79099.1 Sequence problems.
CP002687 Genomic DNA Translation: AEE84385.1
PIRiT10641
RefSeqiNP_193831.1, NM_118217.2

3D structure databases

SMRiF4JIK2
ModBaseiSearch...

Protein-protein interaction databases

IntActiF4JIK2, 2 interactors
STRINGi3702.AT4G20990.1

Proteomic databases

PaxDbiF4JIK2

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiAT4G20990.1; AT4G20990.1; AT4G20990
GeneIDi827846
GrameneiAT4G20990.1; AT4G20990.1; AT4G20990
KEGGiath:AT4G20990

Organism-specific databases

AraportiAT4G20990
TAIRilocus:2133119 AT4G20990

Phylogenomic databases

eggNOGiKOG0382 Eukaryota
COG3338 LUCA
KOiK01674
OMAiFFHVNAP
OrthoDBi1377476at2759

Miscellaneous databases

Protein Ontology

More...
PROi
PR:F4JIK2

Gene expression databases

ExpressionAtlasiF4JIK2 differential
GenevisibleiF4JIK2 AT

Family and domain databases

CDDicd03124 alpha_CA_prokaryotic_like, 1 hit
Gene3Di3.10.200.10, 1 hit
InterProiView protein in InterPro
IPR041891 Alpha_CA_prokaryot-like
IPR001148 CA_dom
IPR036398 CA_dom_sf
IPR023561 Carbonic_anhydrase_a-class
IPR018338 Carbonic_anhydrase_a-class_CS
PANTHERiPTHR18952 PTHR18952, 1 hit
PfamiView protein in Pfam
PF00194 Carb_anhydrase, 1 hit
SMARTiView protein in SMART
SM01057 Carb_anhydrase, 1 hit
SUPFAMiSSF51069 SSF51069, 1 hit
PROSITEiView protein in PROSITE
PS00162 ALPHA_CA_1, 1 hit
PS51144 ALPHA_CA_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 nameiATCA4_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: F4JIK2
Secondary accession number(s): Q9SUB5
<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 9, 2014
Last sequence update: June 28, 2011
Last modified: July 31, 2019
This is version 64 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. SIMILARITY comments
    Index of protein domains and families
  2. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
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