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Entry version 98 (03 Jul 2019)
Sequence version 1 (07 Mar 2006)
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Protein

Cystic fibrosis transmembrane conductance regulator

Gene

CFTR

Organism
Homo sapiens (Human)
Status
Unreviewed-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>
-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

Epithelial ion channel that plays an important role in the regulation of epithelial ion and water transport and fluid homeostasis. Mediates the transport of chloride ions across the cell membrane. Channel activity is coupled to ATP hydrolysis. The ion channel is also permeable to HCO3-; selectivity depends on the extracellular chloride concentration. Exerts its function also by modulating the activity of other ion channels and transporters. Contributes to the regulation of the pH and the ion content of the epithelial fluid layer.UniRule annotation

<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

  • ATP + H(2)O + closed Cl(-) channel = ADP + phosphate + open Cl(-) channel.UniRule annotation EC:5.6.1.6

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi458 – 465ATPPROSITE-ProRule annotation8
Nucleotide bindingi1244 – 1251ATPPROSITE-ProRule annotation8

<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 functionChloride channelUniRule annotation, Ion channel
Biological processIon transport, Transport
LigandATP-bindingPROSITE-ProRule annotationImported, Chloride, Nucleotide-binding

<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:
Cystic fibrosis transmembrane conductance regulatorUniRule annotation (EC:5.6.1.6UniRule annotation)
Alternative name(s):
ATP-binding cassette sub-family C member 7UniRule annotation
Channel conductance-controlling ATPaseUniRule annotation
cAMP-dependent chloride channelUniRule annotation
<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:CFTRImported
<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>OrganismiHomo sapiens (Human)Imported
<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 identifieri9606 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

<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

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 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>Transmembranei119 – 143HelicalUniRule annotationAdd BLAST25
Transmembranei195 – 215HelicalUniRule annotationAdd BLAST21
Transmembranei221 – 241HelicalUniRule annotationAdd BLAST21
Transmembranei304 – 326HelicalUniRule annotationAdd BLAST23
Transmembranei859 – 883HelicalUniRule annotationAdd BLAST25
Transmembranei903 – 927HelicalUniRule annotationAdd BLAST25
Transmembranei986 – 1008HelicalUniRule annotationAdd BLAST23
Transmembranei1014 – 1033HelicalUniRule annotationAdd BLAST20
Transmembranei1105 – 1123HelicalUniRule annotationAdd BLAST19
Transmembranei1129 – 1147HelicalUniRule annotationAdd BLAST19

Keywords - Cellular componenti

Membrane

<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

Keywords - PTMi

PhosphoproteinUniRule annotation

Proteomic databases

PeptideAtlas

More...
PeptideAtlasi
Q2I0A9

PRoteomics IDEntifications database

More...
PRIDEi
Q2I0A9

<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>Domaini86 – 323ABC transmembrane type-1InterPro annotationAdd BLAST238
Domaini423 – 646ABC transporterInterPro annotationAdd BLAST224
Domaini860 – 1155ABC transmembrane type-1InterPro annotationAdd BLAST296
Domaini1210 – 1443ABC transporterInterPro annotationAdd BLAST234

<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 ABC transporter superfamily. ABCC family. CFTR transporter (TC 3.A.1.202) subfamily. [View classification]UniRule annotation

Keywords - Domaini

RepeatSAAS annotation, Transmembrane, Transmembrane helixUniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0054 Eukaryota
COG1132 LUCA

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.20.1560.10, 2 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR003593 AAA+_ATPase
IPR011527 ABC1_TM_dom
IPR036640 ABC1_TM_sf
IPR003439 ABC_transporter-like
IPR009147 CFTR/ABCC7
IPR025837 CFTR_reg_dom
IPR027417 P-loop_NTPase

The PANTHER Classification System

More...
PANTHERi
PTHR24223:SF19 PTHR24223:SF19, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00664 ABC_membrane, 2 hits
PF00005 ABC_tran, 2 hits
PF14396 CFTR_R, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01851 CYSFIBREGLTR

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00382 AAA, 2 hits

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF52540 SSF52540, 2 hits
SSF90123 SSF90123, 2 hits

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR01271 CFTR_protein, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50929 ABC_TM1F, 2 hits
PS50893 ABC_TRANSPORTER_2, 2 hits

<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.

Q2I0A9-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MQRSPLEKAS VVSKLFFSWT RPILRKGYRQ RLELSDIYQI PSVDSADNLS
60 70 80 90 100
EKLEREWDRE LASKKNPKLI NALRRCFFWR FMFYGIFLYL GEVTKAVQPL
110 120 130 140 150
LLGRIIASYD PDNKEERSIA IYLGIGLCLL FIVRTLLLHP AIFGLHHIGM
160 170 180 190 200
QMRIAMFSLI YKKTLKLSSR VLDKISIGQL VSLLSNNLNK FDEGLALAHF
210 220 230 240 250
VWIAPLQVAL LMGLIWELLQ ASAFCGLGFL IVLALFQAGL GRMMMKYRDQ
260 270 280 290 300
RAGKISERLV ITSEMIENIQ SVKAYCWEEA MEKMIENLRQ TELKLTRKAA
310 320 330 340 350
YVRYFNSSAF FFSGFFVVFL SVLPYALIKG IILRKIFTTI SFCIVLRMAV
360 370 380 390 400
TRQFPWAVQT WYDSLGAINK IQDFLQKQEY KTLEYNLTTT EVVMENVTAF
410 420 430 440 450
WEEGFGELFE KAKQNNNNRK TSNGDDSLFF SNFSLLGTPV LKDINFKIER
460 470 480 490 500
GQLLAVAGST GAGKTSLLMM IMGELEPSEG KIKHSGRISF CSQFSWIMPG
510 520 530 540 550
TIKENIIFGV SYDEYRYRSV IKACQLEEXX XXXXXXXXXX XXXXXXXXXX
560 570 580 590 600
XXXXXXXXXX AVYKDADLYL LDSPFGYLDV LTEKEIFESC VCKLMANKTR
610 620 630 640 650
ILVTSKMEHL KKADKILILH EGSSYFYGTF SELQNLQPDF SSKLMGCDSF
660 670 680 690 700
DQFSAERRNS ILTETLHRFS LEGDAPVSWT ETKKQSFKQT GEFGEKRKNS
710 720 730 740 750
ILNPINSIRK FSIVQKTPLQ MNGIEEDSDE PLERRLSLVP DSEQGEAILP
760 770 780 790 800
RISVISTGPT LQARRRQSVL NLMTHSVNQG QNIHRKTTAS TRKVSLAPQA
810 820 830 840 850
NLTELDIYSR RLSQETGLEI SEEINEEDLK ECFFDDMESI PAVTTWNTYL
860 870 880 890 900
RYITVHKSLI FVLIWCLVIF LAEVAASLVV LWLLGNTPLQ DKGNSTHSRN
910 920 930 940 950
NSYAVIITST SSYYVFYIYV GVADTLLAMG FFRGLPLVHT LITVSKILHH
960 970 980 990 1000
KMLHSVLQAP MSTLNTLKAG GILNRFSKDI AILDDLLPLT IFDFIQLLLI
1010 1020 1030 1040 1050
VIGAIAVVAV LQPYIFVATV PVIVAFIMLR AYFLQTSQQL KQLESEGRSP
1060 1070 1080 1090 1100
IFTHLVTSLK GLWTLRAFGR QPYFETLFHK ALNLHTANWF LYLSTLRWFQ
1110 1120 1130 1140 1150
MRIEMIFVIF FIAVTFISIL TTGEGEGRVG IILTLAMNIM STLQWAVNSS
1160 1170 1180 1190 1200
IDVDSLMRSV SRVFKFIDMP TEGKPTKSTK PYKNGQLSKV MIIENSHVKK
1210 1220 1230 1240 1250
DDIWPSGGQM TVKDLTAKYT EGGNAILENI SFSISPGQRV GLLGRTGSGK
1260 1270 1280 1290 1300
STLLSAFLRL LNTEGEIQID GVSWDSITLQ QWRKAFGVIP QKVFIFSGTF
1310 1320 1330 1340 1350
RKNLDPYEQW SDQEIWKVAD EVGLRSVIEQ FPGKLDFVLV DGGCVLSHGH
1360 1370 1380 1390 1400
KQLMCLARSV LSKAKILLLD EPSAHLDPVT YQIIRRTLKQ AFADCTVILC
1410 1420 1430 1440 1450
EHRIEAMLEC QQFLVIEENK VRQYDSIQKL LNERSLFRQA ISPSDRVKLF
1460 1470 1480
PHRNSSKCKS KPQIAALKEE TEEEVQDTRL
Length:1,480
Mass (Da):168,381
Last modified:March 7, 2006 - 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:i40D45B1A5142AA9E
GO

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
DQ356257 Genomic DNA Translation: ABC87053.1

<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
DQ356257 Genomic DNA Translation: ABC87053.1

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

Proteomic databases

PeptideAtlasiQ2I0A9
PRIDEiQ2I0A9

Phylogenomic databases

eggNOGiKOG0054 Eukaryota
COG1132 LUCA

Miscellaneous databases

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...
ChiTaRSi
CFTR human

Family and domain databases

Gene3Di1.20.1560.10, 2 hits
InterProiView protein in InterPro
IPR003593 AAA+_ATPase
IPR011527 ABC1_TM_dom
IPR036640 ABC1_TM_sf
IPR003439 ABC_transporter-like
IPR009147 CFTR/ABCC7
IPR025837 CFTR_reg_dom
IPR027417 P-loop_NTPase
PANTHERiPTHR24223:SF19 PTHR24223:SF19, 1 hit
PfamiView protein in Pfam
PF00664 ABC_membrane, 2 hits
PF00005 ABC_tran, 2 hits
PF14396 CFTR_R, 1 hit
PRINTSiPR01851 CYSFIBREGLTR
SMARTiView protein in SMART
SM00382 AAA, 2 hits
SUPFAMiSSF52540 SSF52540, 2 hits
SSF90123 SSF90123, 2 hits
TIGRFAMsiTIGR01271 CFTR_protein, 1 hit
PROSITEiView protein in PROSITE
PS50929 ABC_TM1F, 2 hits
PS50893 ABC_TRANSPORTER_2, 2 hits

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 nameiQ2I0A9_HUMAN
<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: Q2I0A9
<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/TrEMBL: March 7, 2006
Last sequence update: March 7, 2006
Last modified: July 3, 2019
This is version 98 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)
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.
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