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Entry version 179 (17 Jun 2020)
Sequence version 1 (01 May 2000)
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Protein
Submitted name:

Carbonic anhydrase 2, isoform A

Gene

CAH2

Organism
Drosophila melanogaster (Fruit fly)
Status
Unreviewed-Annotation score:

Annotation score:2 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

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 sitei88Proton acceptorPROSITE-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

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 functionLyaseImported

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-DME-1237044 Erythrocytes take up carbon dioxide and release oxygen
R-DME-1247673 Erythrocytes take up oxygen and release carbon dioxide
R-DME-1475029 Reversible hydration of carbon dioxide

<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
Submitted name:
Carbonic anhydrase 2, isoform AImported (EC:4.2.1.1Imported)
Submitted name:
LD26647pImported
<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:CAH2Imported
Synonyms:CT21171Imported, Dmel\CG6906Imported
ORF Names:CG6906Imported, Dmel_CG6906Imported
<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>OrganismiDrosophila melanogaster (Fruit fly)Imported
<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 identifieri7227 [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 lineageiEukaryotaMetazoaEcdysozoaArthropodaHexapodaInsectaPterygotaNeopteraHolometabolaDipteraBrachyceraMuscomorphaEphydroideaDrosophilidaeDrosophilaSophophora
<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
  • UP000000803 <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 3L

Organism-specific databases

Drosophila genome database

More...
FlyBasei
FBgn0027843 CAH2

<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 Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

<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

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...
ChEMBLi
CHEMBL2331045

<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 – 25Sequence analysisAdd BLAST25
<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_501510060526 – 335Sequence analysisAdd BLAST310

<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

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
FBgn0027843 Expressed in antenna and 23 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q9VTU8 baseline and differential

<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
Q9VTU8, 1 interactor

STRING: functional protein association networks

More...
STRINGi
7227.FBpp0075733

Chemistry databases

BindingDB database of measured binding affinities

More...
BindingDBi
Q9VTU8

<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
Q9VTU8

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%5Fand%5Fdomains%5Fsection">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>Domaini26 – 286Alpha-carbonic anhydraseInterPro annotationAdd BLAST261

<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

Belongs to the alpha-carbonic anhydrase family.SAAS annotation

Keywords - Domaini

SignalSequence analysis

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0382 Eukaryota
COG3338 LUCA

Identification of Orthologs from Complete Genome Data

More...
OMAi
EHWSEDY

Database of Orthologous Groups

More...
OrthoDBi
1377476at2759

Family and domain databases

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
IPR001148 CA_dom
IPR036398 CA_dom_sf
IPR023561 Carbonic_anhydrase_a-class

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
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%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>Sequence (1+)i

<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.

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

Q9VTU8-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MRRCRNTPFA IVIAPILICA SLVLAQDFGY EGRHGPEHWS EDYARCSGKH
60 70 80 90 100
QSPINIDQVS AVEKKFPKLE FFNFKVVPDN LQMTNNGHTV LVKMSYNEDE
110 120 130 140 150
IPSVRGGPLA EKTPLGYQFE QFHFHWGEND TIGSEDLINN RAYPAELHVV
160 170 180 190 200
LRNLEYPDFA SALDKDHGIA VMAFFFQVGD KSTGGYEGFT NLLSQIDRKG
210 220 230 240 250
KSVNMTNPLP LGEYISKSVE SYFSYTGSLT TPPCSEEVTW IDFTTPIDIT
260 270 280 290 300
EKQLNAFRLL TANDDHLKNN FRPIQPLNDR TLYKNYIEIP IHNMGSIPLV
310 320 330
DAENAAGKWR AQAAAVLLPL VVLAALSRTS IFRGF
Length:335
Mass (Da):37,678
Last modified:May 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:i496D817D805D3676
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
M9PF87M9PF87_DROME
Carbonic anhydrase 2, isoform B
CAH2 CT21171, Dmel\CG6906, CG6906, Dmel_CG6906
253Annotation score:

Annotation score:2 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
AE014296 Genomic DNA Translation: AAF49948.1
AY095036 mRNA Translation: AAM11364.1

NCBI Reference Sequences

More...
RefSeqi
NP_648555.1, NM_140298.3

Genome annotation databases

Ensembl metazoan genome annotation project

More...
EnsemblMetazoai
FBtr0076001; FBpp0075733; FBgn0027843

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
39390

UCSC genome browser

More...
UCSCi
CG6906-RA d. melanogaster

<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
AE014296 Genomic DNA Translation: AAF49948.1
AY095036 mRNA Translation: AAM11364.1
RefSeqiNP_648555.1, NM_140298.3

3D structure databases

SMRiQ9VTU8
ModBaseiSearch...

Protein-protein interaction databases

IntActiQ9VTU8, 1 interactor
STRINGi7227.FBpp0075733

Chemistry databases

BindingDBiQ9VTU8
ChEMBLiCHEMBL2331045

Genome annotation databases

EnsemblMetazoaiFBtr0076001; FBpp0075733; FBgn0027843
GeneIDi39390
UCSCiCG6906-RA d. melanogaster

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
39390
FlyBaseiFBgn0027843 CAH2

Phylogenomic databases

eggNOGiKOG0382 Eukaryota
COG3338 LUCA
OMAiEHWSEDY
OrthoDBi1377476at2759

Enzyme and pathway databases

ReactomeiR-DME-1237044 Erythrocytes take up carbon dioxide and release oxygen
R-DME-1247673 Erythrocytes take up oxygen and release carbon dioxide
R-DME-1475029 Reversible hydration of carbon dioxide

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...
BioGRID-ORCSi
39390 0 hits in 5 CRISPR screens

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...
GenomeRNAii
39390

Gene expression databases

BgeeiFBgn0027843 Expressed in antenna and 23 other tissues
ExpressionAtlasiQ9VTU8 baseline and differential

Family and domain databases

Gene3Di3.10.200.10, 1 hit
InterProiView protein in InterPro
IPR001148 CA_dom
IPR036398 CA_dom_sf
IPR023561 Carbonic_anhydrase_a-class
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
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 nameiQ9VTU8_DROME
<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: Q9VTU8
<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/TrEMBL: May 1, 2000
Last sequence update: May 1, 2000
Last modified: June 17, 2020
This is version 179 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 statusiUnreviewed (UniProtKB/TrEMBL)

<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 proteomeImported
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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