Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Entry version 116 (22 Apr 2020)
Sequence version 1 (01 Nov 1996)
Previous versions | rss
Help videoAdd a publicationFeedback
Protein

Prospero homeobox protein 1

Gene

PROX1

Organism
Gallus gallus (Chicken)
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 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 which may be involved in developmental processes such as cell fate determination, gene transcriptional regulation and progenitor cell regulation in a number of organs. May be essential in the development and function of the eye. May play a role in the regulation of the circadian rhythm by repressing the expression of clock genes.1 PublicationBy similarity

<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, Repressor
Biological processBiological rhythms, 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:
Prospero homeobox protein 1
Alternative name(s):
Homeobox prospero-like protein PROX1
Short name:
PROX-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:PROX1
<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>OrganismiGallus gallus (Chicken)
<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 identifieri9031 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiArchelosauriaArchosauriaDinosauriaSaurischiaTheropodaCoelurosauriaAvesNeognathaeGalloanseraeGalliformesPhasianidaePhasianinaeGallus
<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
  • UP000000539 <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: Unplaced

<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_00002088821 – 736Prospero homeobox protein 1Add BLAST736

Proteomic databases

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

More...
PaxDbi
Q91018

PRoteomics IDEntifications database

More...
PRIDEi
Q91018

<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

Expressed most actively in the developing lens and midgut and at lower levels in the developing brain, heart, muscle and retina.1 Publication

<p>This subsection of the 'Expression' section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified 'at the protein level'.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

First detected at stage 14 in the early lens placode. At later stages of development, it was observed throughout the lens, but it appeared more abundant around the bow region of the equator than in the anterior epithelium or the fibers. In the retina, expression was detected mainly in the inner nuclear layer during later stages of histogenesis.1 Publication

<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

STRING: functional protein association networks

More...
STRINGi
9031.ENSGALP00000015910

<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
Q91018

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>Domaini576 – 634Prospero-type homeoPROSITE-ProRule annotationAdd BLAST59
Domaini635 – 734ProsperoPROSITE-ProRule annotationAdd BLAST100

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>Regioni576 – 734Homeo-ProsperoPROSITE-ProRule annotationAdd BLAST159

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi163 – 168Nuclear localization signalSequence analysis6

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 biasi215 – 219Poly-Gln5

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The Prospero-type homeodomain and the adjacent Prospero domain act as a single structural unit, the Homeo-Prospero domain.PROSITE-ProRule annotation

<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 Prospero homeodomain family.PROSITE-ProRule annotation

Keywords - Domaini

Homeobox

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3779 Eukaryota
ENOG410ZE21 LUCA

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q91018

KEGG Orthology (KO)

More...
KOi
K20211

Database of Orthologous Groups

More...
OrthoDBi
373478at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q91018

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.10.500, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR023082 Homeo_prospero_dom
IPR037131 Homeo_prospero_dom_sf
IPR009057 Homeobox-like_sf
IPR039350 Prospero_homeodomain
IPR007738 Prox1

The PANTHER Classification System

More...
PANTHERi
PTHR12198 PTHR12198, 1 hit
PTHR12198:SF6 PTHR12198:SF6, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF05044 HPD, 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
PS51818 HOMEO_PROSPERO, 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>Sequences (2)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 describes 2 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform. This section is only present in reviewed entries, i.e. in UniProtKB/Swiss-Prot.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Note: Additional isoforms seem to exist.
Isoform Long (identifier: Q91018-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MPDHDSTALL SRQTKRRRVD IGVKRTVGTA SAFFAKARAT FFSAMNPQGS
60 70 80 90 100
EQDVEYSVVQ HADGEKPNVL RKLLKRANSY EDAMMPFPGA TIISQLLKNN
110 120 130 140 150
MNKNGGTEPS FQASGLSSTG SEVHQEDVCS NSSRDSPQEC LSPFGRPTMS
160 170 180 190 200
QFDVDRLCDE HLRAKRARVE NIIRGMSHSP RVALRGNENE REIRPQSVSP
210 220 230 240 250
RESYRENKRK QNWPQQQQQS FQQLVSARKE QKREERRQLK QQLEDMQKQL
260 270 280 290 300
RQLQEEFYQI YDSTDSENDE DGNLSEDRMR SETVDAQAGD SVGRSDNEMC
310 320 330 340 350
ELDPGQFIDR ARALIREQEI GENKPKREGP KEKDQGPNSF HPEGKHLAET
360 370 380 390 400
LKQELNTAMS QVVDTVVKVF SSKPSRQLPQ VFPPLQIPQA RFAVNGENHN
410 420 430 440 450
FHTANQRLQC FGDVIIPNPL DTFSSVPMPG ATDQTDALPL VVRKNSSDQP
460 470 480 490 500
ASAPPAGGHH ASLHQSPLSA TAGFSTSSFR HPFPLPLMAY PFQSPLGAPS
510 520 530 540 550
ASFPGKERAS PESLDLTRET TSLRTKMSSH HMNHHPCSPA HPPSAAEGLS
560 570 580 590 600
LSLIKSECGD LQDMSEISPY SGSAMQEGLS PNHLKKAKLM FFYTRYPSSN
610 620 630 640 650
MLKTYFSDVK FNRCITSQLI KWFSNFREFY YIQMEKYARQ AINDGVTSTE
660 670 680 690 700
ELSITRDCEL YRALNMHYNK ANDFEVPERF LEVAQITLRE FFNAIIAGKD
710 720 730
VDPSWKKAIY KVICKLDSEV PEIFKSPNCL QELLHE
Length:736
Mass (Da):83,141
Last modified:November 1, 1996 - 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:i8723ED53B3435160
GO
Isoform Short (identifier: Q91018-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     611-675: Missing.

Show »
Length:671
Mass (Da):75,231
Checksum:iF344E020C269DD29
GO

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_002305611 – 675Missing in isoform Short. CuratedAdd BLAST65

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
U46563 mRNA Translation: AAC59938.1

Protein sequence database of the Protein Information Resource

More...
PIRi
JC5495

NCBI Reference Sequences

More...
RefSeqi
NP_001005616.1, NM_001005616.1 [Q91018-1]

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
395802

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
gga:395802

Keywords - Coding sequence diversityi

Alternative splicing

<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
U46563 mRNA Translation: AAC59938.1
PIRiJC5495
RefSeqiNP_001005616.1, NM_001005616.1 [Q91018-1]

3D structure databases

SMRiQ91018
ModBaseiSearch...

Protein-protein interaction databases

STRINGi9031.ENSGALP00000015910

Proteomic databases

PaxDbiQ91018
PRIDEiQ91018

Genome annotation databases

GeneIDi395802
KEGGigga:395802

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
5629

Phylogenomic databases

eggNOGiKOG3779 Eukaryota
ENOG410ZE21 LUCA
InParanoidiQ91018
KOiK20211
OrthoDBi373478at2759
PhylomeDBiQ91018

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q91018

Family and domain databases

Gene3Di1.10.10.500, 1 hit
InterProiView protein in InterPro
IPR023082 Homeo_prospero_dom
IPR037131 Homeo_prospero_dom_sf
IPR009057 Homeobox-like_sf
IPR039350 Prospero_homeodomain
IPR007738 Prox1
PANTHERiPTHR12198 PTHR12198, 1 hit
PTHR12198:SF6 PTHR12198:SF6, 1 hit
PfamiView protein in Pfam
PF05044 HPD, 1 hit
SUPFAMiSSF46689 SSF46689, 1 hit
PROSITEiView protein in PROSITE
PS51818 HOMEO_PROSPERO, 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 nameiPROX1_CHICK
<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: Q91018
<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: July 15, 1998
Last sequence update: November 1, 1996
Last modified: April 22, 2020
This is version 116 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 programChordata 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

Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again