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Entry version 98 (16 Oct 2019)
Sequence version 1 (02 May 2006)
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Protein

Cortexillin-1

Gene

ctxA

Organism
Dictyostelium discoideum (Slime mold)
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 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

Actin-bundling protein. When linked to F-actin the actin filaments form preferentially anti-parallel bundles that associate into meshworks. Plays a major role in cytokinesis. Negatively regulates cortical localization of rapgap1.1 Publication

<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 functionActin-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:
Cortexillin-1
Alternative name(s):
Cortexillin I
<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:ctxA
ORF Names:DDB_G0289483
<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>OrganismiDictyostelium discoideum (Slime mold)
<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 identifieri44689 [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 lineageiEukaryotaAmoebozoaEvoseaEumycetozoaDictyostelidsDictyostelialesDictyosteliaceaeDictyostelium
<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
  • UP000002195 <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> Componentsi: Chromosome 5, Unassembled WGS sequence

Organism-specific databases

Dictyostelium discoideum online informatics resource

More...
dictyBasei
DDB_G0289483 ctxA

<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

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm, Cytoskeleton

<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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00003127761 – 444Cortexillin-1Add BLAST444

Proteomic databases

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

More...
PaxDbi
Q54HG2

PRoteomics IDEntifications database

More...
PRIDEi
Q54HG2

<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

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer; parallel.

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section%27">Interaction</a> section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

GO - Molecular functioni

Protein-protein interaction databases

Database of interacting proteins

More...
DIPi
DIP-52435N

Protein interaction database and analysis system

More...
IntActi
Q54HG2, 3 interactors

STRING: functional protein association networks

More...
STRINGi
44689.DDB0191103

<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

Secondary structure

1444
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q54HG2

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
Q54HG2

<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>Domaini8 – 115Calponin-homology (CH) 1PROSITE-ProRule annotationAdd BLAST108
Domaini124 – 229Calponin-homology (CH) 2PROSITE-ProRule annotationAdd BLAST106

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>Regioni1 – 227Actin-bindingAdd BLAST227

Coiled coil

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and domains’ section denotes the positions of regions of coiled coil within the protein.<p><a href='/help/coiled' target='_top'>More...</a></p>Coiled coili227 – 352Sequence analysisAdd BLAST126
Coiled coili410 – 434Sequence analysisAdd BLAST25

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 biasi385 – 389Poly-Ser5

<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 cortexillin family.Curated

Keywords - Domaini

Coiled coil, Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0035 Eukaryota
COG5069 LUCA

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q54HG2

KEGG Orthology (KO)

More...
KOi
K18620

Identification of Orthologs from Complete Genome Data

More...
OMAi
WCKNTTT

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q54HG2

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00014 CH, 2 hits

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.418.10, 2 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001589 Actinin_actin-bd_CS
IPR001715 CH-domain
IPR036872 CH_dom_sf
IPR015383 Cortexillin-I_coiled-coil

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00307 CH, 2 hits
PF09304 Cortex-I_coil, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00033 CH, 2 hits

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47576 SSF47576, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00019 ACTININ_1, 1 hit
PS50021 CH, 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.

Q54HG2-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAGKDWEIVQ EKAFTAWVNS VLDKRGEKIS DVGKDLSDGV KLIFFLELIS
60 70 80 90 100
SKKFNKKYDF EPKARINMIQ NVALALKFLD EELKIKVQGI GSEDFVDNNK
110 120 130 140 150
KMILGFLWTL YRKYRIAVIS EGDKSSEEGL LLWCKNTTTG YDGVNITSFT
160 170 180 190 200
KSFRDGLAFL ALSHKFEPES FKFQEFEAMD PIARLNAAFD FAEKGLGVPK
210 220 230 240 250
LLEAEEVMRG TTDERSLVLY TSLFFHAYRA KEEKARLESS KNEMANRLAG
260 270 280 290 300
LENSLESEKV SREQLIKQKD QLNSLLASLE SEGAEREKRL RELEAKLDET
310 320 330 340 350
LKNLELEKLA RMELEARLAK TEKDRAILEL KLAEAIDEKS KLEQQIEATR
360 370 380 390 400
IRGAAEAQGL GLLRKNLDTH VHDLLKWQKL TMENSSSSSI DDQIIVEVSG
410 420 430 440
LPFGEQVKHL ATKLEAENLA IMKLLNQKED DLKAQKLKSS KSKK
Length:444
Mass (Da):50,505
Last modified:May 2, 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:i9884C6BC15BEE958
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
L49527 mRNA Translation: AAB62275.1
AAFI02000141 Genomic DNA Translation: EAL62673.1

NCBI Reference Sequences

More...
RefSeqi
XP_636175.1, XM_631083.1

Genome annotation databases

Ensembl protists genome annotation project

More...
EnsemblProtistsi
EAL62673; EAL62673; DDB_G0289483

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
8627162

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ddi:DDB_G0289483

<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
L49527 mRNA Translation: AAB62275.1
AAFI02000141 Genomic DNA Translation: EAL62673.1
RefSeqiXP_636175.1, XM_631083.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1D7MX-ray2.70A/B243-343[»]
4J4AX-ray1.65A/B/C/D/E/F/G/H/I/J/K/L304-328[»]
SMRiQ54HG2
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

DIPiDIP-52435N
IntActiQ54HG2, 3 interactors
STRINGi44689.DDB0191103

Proteomic databases

PaxDbiQ54HG2
PRIDEiQ54HG2

Genome annotation databases

EnsemblProtistsiEAL62673; EAL62673; DDB_G0289483
GeneIDi8627162
KEGGiddi:DDB_G0289483

Organism-specific databases

dictyBaseiDDB_G0289483 ctxA

Phylogenomic databases

eggNOGiKOG0035 Eukaryota
COG5069 LUCA
InParanoidiQ54HG2
KOiK18620
OMAiWCKNTTT
PhylomeDBiQ54HG2

Miscellaneous databases

EvolutionaryTraceiQ54HG2

Protein Ontology

More...
PROi
PR:Q54HG2

Family and domain databases

CDDicd00014 CH, 2 hits
Gene3Di1.10.418.10, 2 hits
InterProiView protein in InterPro
IPR001589 Actinin_actin-bd_CS
IPR001715 CH-domain
IPR036872 CH_dom_sf
IPR015383 Cortexillin-I_coiled-coil
PfamiView protein in Pfam
PF00307 CH, 2 hits
PF09304 Cortex-I_coil, 1 hit
SMARTiView protein in SMART
SM00033 CH, 2 hits
SUPFAMiSSF47576 SSF47576, 1 hit
PROSITEiView protein in PROSITE
PS00019 ACTININ_1, 1 hit
PS50021 CH, 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 nameiCTXA_DICDI
<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: Q54HG2
Secondary accession number(s): O15813
<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: December 4, 2007
Last sequence update: May 2, 2006
Last modified: October 16, 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 statusiReviewed (UniProtKB/Swiss-Prot)

<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

3D-structure, Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Dictyostelium discoideum
    Dictyostelium discoideum: entries, gene names and cross-references to dictyBase
  3. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
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