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Entry version 143 (17 Jun 2020)
Sequence version 2 (16 Mar 2016)
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Protein

Homeobox protein unc-4

Gene

unc-4

Organism
Drosophila melanogaster (Fruit fly)
Status
Reviewed-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>
-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

Transcription factor that regulates synaptic specificity.By similarity

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section specifies the position and type of each DNA-binding domain present within the protein.<p><a href='/help/dna_bind' target='_top'>More...</a></p>DNA bindingi243 – 302HomeoboxPROSITE-ProRule annotationAdd BLAST60

<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 functionDevelopmental protein, DNA-binding
Biological processDifferentiation, Neurogenesis, Transcription, Transcription regulation

<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
Recommended name:
Homeobox protein unc-4
Alternative name(s):
Paired-like homeodomain protein unc-4
Short name:
DPHD-1
<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:unc-4Imported
ORF Names:CG6269
<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)
<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 X

Organism-specific databases

Drosophila genome database

More...
FlyBasei
FBgn0024184 unc-4

<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

Keywords - Cellular componenti

Nucleus

<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_00000493481 – 588Homeobox protein unc-4Add BLAST588

Proteomic databases

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

More...
PaxDbi
O77215

PRoteomics IDEntifications database

More...
PRIDEi
O77215

<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

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

During embryonic and third instar larval stages, expressed in subsets of postmitotic neurons in the central nervous system (CNS) and in the developing epidermis with a segmentally repeated pattern.1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
FBgn0024184 Expressed in capitellum (Drosophila) and 9 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
O77215 baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
O77215 DM

<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

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
59079, 1 interactor

Protein interaction database and analysis system

More...
IntActi
O77215, 2 interactors

STRING: functional protein association networks

More...
STRINGi
7227.FBpp0074234

<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
O77215

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

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 biasi16 – 35Asn-richPROSITE-ProRule annotationAdd BLAST20
Compositional biasi142 – 200Ala-richPROSITE-ProRule annotationAdd BLAST59
Compositional biasi414 – 459Gly-richPROSITE-ProRule annotationAdd BLAST46
Compositional biasi519 – 549His-richPROSITE-ProRule annotationAdd BLAST31

<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 paired homeobox family. Unc-4 subfamily.Curated

Keywords - Domaini

Homeobox

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0490 Eukaryota
ENOG410YIJ3 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_445694_0_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
O77215

KEGG Orthology (KO)

More...
KOi
K09328

Identification of Orthologs from Complete Genome Data

More...
OMAi
VQFGKLE

Database of Orthologous Groups

More...
OrthoDBi
1061914at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00086 homeodomain, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR009057 Homeobox-like_sf
IPR017970 Homeobox_CS
IPR001356 Homeobox_dom

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00046 Homeodomain, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00389 HOX, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF46689 SSF46689, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00027 HOMEOBOX_1, 1 hit
PS50071 HOMEOBOX_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 2 potential isoforms that are computationally mapped.Show allAlign All

O77215-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MVLETSEGDT KKFLTNNNNS SASRNNNSHN NNNNNHSPKE IPEETGRSSS
60 70 80 90 100
TSSNSIPNAH RTNAGQHLLG GSPSSACSTS VSGCGMPSEG LHPTAALQLY
110 120 130 140 150
AAAAQLAPNG VRVPPWGPFL QFGVPGVFGP NGPFLGRPRF DAASAGGHPN
160 170 180 190 200
SAAAAAAATQ MAAVNASNAF ANLTGLSAAA LRNVSAAQTT AVAAVASTVA
210 220 230 240 250
TIQHRLMIGN RQSLPPAGPP SEGSNEDGGF PGDGDDDSSA AKRRRSRTNF
260 270 280 290 300
NSWQLEELER AFSASHYPDI FMREALAMRL DLKESRVAVW FQNRRAKVRK
310 320 330 340 350
REHTKKGPGR PAHNAQPQTC SGEPIPPNEL KAKERARRRK KLAKAIDRQA
360 370 380 390 400
RKLQAKGITV DLEALKAEYI SQHKANGTFS DSDLEDDGIQ IDVVGGTDSD
410 420 430 440 450
DEGDSDAVSP VRLGGGGGGG GGTGGGGGGG ASSSLHCGLD GDGDSSRAGS
460 470 480 490 500
FIGGGGSLGS PSSVAPPSML SNGAVQFGKL EPMDGNESEE RDRERDSPKP
510 520 530 540 550
LLFPAKAFHQ LNLQSSQQHH GLVVGQGQGS GSGHGHGHQH NHHQHHLHHG
560 570 580
SASASAAAAV ANLVHQTSPI SMRRSNPFSI ESLLFNNT
Length:588
Mass (Da):61,123
Last modified:March 16, 2016 - v2
<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:i5E125482E2E0C564
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 are 2 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
X2JFX5X2JFX5_DROME
Unc-4, isoform B
unc-4 Dmel\CG6269, DPHD-1, Dunc-4, Unc-4, Unc4
588Annotation 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>
X2JCE2X2JCE2_DROME
Unc-4, isoform D
unc-4 Dmel\CG6269, DPHD-1, Dunc-4, Unc-4, Unc4
300Annotation 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>

<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 AAC36333 differs from that shown. Reason: Erroneous initiation. Truncated N-terminus.Curated
The sequence ABJ17079 differs from that shown. Reason: Erroneous initiation. Truncated N-terminus.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti156 – 160AAATQ → KLSVD in ABJ17079 (Ref. 4) Curated5

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
AE014298 Genomic DNA Translation: AAF48762.2
AF086820 mRNA Translation: AAC36333.1 Different initiation.
BT029145 mRNA Translation: ABJ17079.1 Different initiation.

NCBI Reference Sequences

More...
RefSeqi
NP_001285389.1, NM_001298460.1
NP_573242.2, NM_133014.3

Genome annotation databases

Ensembl metazoan genome annotation project

More...
EnsemblMetazoai
FBtr0340626; FBpp0309490; FBgn0024184
FBtr0340627; FBpp0309491; FBgn0024184

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
32757

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
dme:Dmel_CG6269

<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
AE014298 Genomic DNA Translation: AAF48762.2
AF086820 mRNA Translation: AAC36333.1 Different initiation.
BT029145 mRNA Translation: ABJ17079.1 Different initiation.
RefSeqiNP_001285389.1, NM_001298460.1
NP_573242.2, NM_133014.3

3D structure databases

SMRiO77215
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi59079, 1 interactor
IntActiO77215, 2 interactors
STRINGi7227.FBpp0074234

Proteomic databases

PaxDbiO77215
PRIDEiO77215

Genome annotation databases

EnsemblMetazoaiFBtr0340626; FBpp0309490; FBgn0024184
FBtr0340627; FBpp0309491; FBgn0024184
GeneIDi32757
KEGGidme:Dmel_CG6269

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
32757
FlyBaseiFBgn0024184 unc-4

Phylogenomic databases

eggNOGiKOG0490 Eukaryota
ENOG410YIJ3 LUCA
HOGENOMiCLU_445694_0_0_1
InParanoidiO77215
KOiK09328
OMAiVQFGKLE
OrthoDBi1061914at2759

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...
BioGRID-ORCSi
32757 0 hits in 1 CRISPR screen

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

More...
GenomeRNAii
32757

Protein Ontology

More...
PROi
PR:O77215

Gene expression databases

BgeeiFBgn0024184 Expressed in capitellum (Drosophila) and 9 other tissues
ExpressionAtlasiO77215 baseline and differential
GenevisibleiO77215 DM

Family and domain databases

CDDicd00086 homeodomain, 1 hit
InterProiView protein in InterPro
IPR009057 Homeobox-like_sf
IPR017970 Homeobox_CS
IPR001356 Homeobox_dom
PfamiView protein in Pfam
PF00046 Homeodomain, 1 hit
SMARTiView protein in SMART
SM00389 HOX, 1 hit
SUPFAMiSSF46689 SSF46689, 1 hit
PROSITEiView protein in PROSITE
PS00027 HOMEOBOX_1, 1 hit
PS50071 HOMEOBOX_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 nameiUNC4_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: O77215
Secondary accession number(s): Q058S3
<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/Swiss-Prot: October 11, 2004
Last sequence update: March 16, 2016
Last modified: June 17, 2020
This is version 143 of the entry and version 2 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 programDrosophila annotation project

<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. SIMILARITY comments
    Index of protein domains and families
  2. Drosophila
    Drosophila: entries, gene names and cross-references to FlyBase
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