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Entry version 100 (08 May 2019)
Sequence version 2 (06 Feb 2007)
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Protein

Intestine-specific homeobox

Gene

Isx

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score:

Annotation score:4 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 gene expression in intestine. May participate in vitamin A metabolism most likely by regulating BCO1 expression in the intestine.2 Publications

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ 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 bindingi78 – 137HomeoboxPROSITE-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 functionActivator, DNA-binding
Biological processTranscription, 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_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:
Intestine-specific homeobox
<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:Isx
<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>OrganismiMus musculus (Mouse)
<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 identifieri10090 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
<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
  • UP000000589 <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> Componenti: Chromosome 8

Organism-specific databases

Mouse genome database (MGD) from Mouse Genome Informatics (MGI)

More...
MGIi
MGI:1918847 Isx

<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 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

<p>This subsection of the ‘Pathology and Biotech’ section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Mice appear healthy for at least 1 year and display normal histological features in the gut. They however show defects in intestinal gene expression with a dysregulation of the scavenger receptor Scarb1.1 Publication

<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_00002886031 – 240Intestine-specific homeoboxAdd BLAST240

Proteomic databases

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

More...
PaxDbi
A1A546

PRoteomics IDEntifications database

More...
PRIDEi
A1A546

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
A1A546

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...
PhosphoSitePlusi
A1A546

<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 in intestinal epithelial cells from the duodenum to the proximal colon.2 Publications

<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

Appears late in development, just before the villus transition in intestine morphogenesis. Restricted to the epithelial compartment in both adult and fetal intestine.1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSMUSG00000031621 Expressed in 29 organ(s), highest expression level in intestine

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
A1A546 baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
A1A546 MM

<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
10090.ENSMUSP00000034034

<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
A1A546

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
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

Keywords - Domaini

Homeobox

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0490 Eukaryota
ENOG410YIJ3 LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000161702

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000052524

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
A1A546

Identification of Orthologs from Complete Genome Data

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OMAi
WETQPLP

Database of Orthologous Groups

More...
OrthoDBi
1270742at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
A1A546

TreeFam database of animal gene trees

More...
TreeFami
TF315976

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_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<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_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.

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.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Isoform 1 (identifier: A1A546-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' 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
MAGPTIHRDM EKSSGYCEAP ENLGLSFSIE AILKKPTERR SLPRPQSICK
60 70 80 90 100
EDSRQTTIPG SKLERPPQDQ PQEEKKNKRR VRTTFTTEQL QELEKLFHFT
110 120 130 140 150
HYPDIHVRSQ LASRINLPEA RVQIWFQNQR AKWRKQEKSG NLSAPQQPGE
160 170 180 190 200
AGLALPSNMD VSGPVLTPTA MTTLVPPTEC CLLSQTQLPS SWFPTQIPLV
210 220 230 240
PWHPWDLQPL PGPLTQHPCV PTFMFPPLHP KWGSICATST
Length:240
Mass (Da):27,169
Last modified:February 6, 2007 - 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:iC7BFA37A5950FA1B
GO
Isoform 2 (identifier: A1A546-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     150-240: EAGLALPSNM...KWGSICATST → SCADTHCYDY...LSKQATLLSQ

Note: No experimental confirmation available.
Show »
Length:242
Mass (Da):27,344
Checksum:i94AB50ADCACC7EF3
GO

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 conflicti176P → L in BAB31309 (PubMed:16141072).Curated1

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_025717150 – 240EAGLA…CATST → SCADTHCYDYIGTSHRMLPT LSDSAPFKLVPYTDSPCPMA PMGPTAPAWPSHPASLCPYL HVPTPTPQVGQHLCNFNIGT DFSLSKQATLLSQ in isoform 2. 1 PublicationAdd BLAST91

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AK018615 mRNA Translation: BAB31309.1
BC128289 mRNA Translation: AAI28290.2
BC128290 mRNA Translation: AAI28291.2

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS40391.1 [A1A546-1]
CCDS80899.1 [A1A546-2]

NCBI Reference Sequences

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RefSeqi
NP_001281207.1, NM_001294278.1 [A1A546-2]
NP_082113.2, NM_027837.3 [A1A546-1]

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSMUST00000034034; ENSMUSP00000034034; ENSMUSG00000031621 [A1A546-1]
ENSMUST00000174427; ENSMUSP00000134368; ENSMUSG00000031621 [A1A546-2]

Database of genes from NCBI RefSeq genomes

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GeneIDi
71597

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mmu:71597

UCSC genome browser

More...
UCSCi
uc009mgv.1 mouse [A1A546-1]
uc012ggb.1 mouse [A1A546-2]

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
AK018615 mRNA Translation: BAB31309.1
BC128289 mRNA Translation: AAI28290.2
BC128290 mRNA Translation: AAI28291.2
CCDSiCCDS40391.1 [A1A546-1]
CCDS80899.1 [A1A546-2]
RefSeqiNP_001281207.1, NM_001294278.1 [A1A546-2]
NP_082113.2, NM_027837.3 [A1A546-1]

3D structure databases

SMRiA1A546
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi10090.ENSMUSP00000034034

PTM databases

iPTMnetiA1A546
PhosphoSitePlusiA1A546

Proteomic databases

PaxDbiA1A546
PRIDEiA1A546

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSMUST00000034034; ENSMUSP00000034034; ENSMUSG00000031621 [A1A546-1]
ENSMUST00000174427; ENSMUSP00000134368; ENSMUSG00000031621 [A1A546-2]
GeneIDi71597
KEGGimmu:71597
UCSCiuc009mgv.1 mouse [A1A546-1]
uc012ggb.1 mouse [A1A546-2]

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
91464
MGIiMGI:1918847 Isx

Phylogenomic databases

eggNOGiKOG0490 Eukaryota
ENOG410YIJ3 LUCA
GeneTreeiENSGT00940000161702
HOGENOMiHOG000052524
InParanoidiA1A546
OMAiWETQPLP
OrthoDBi1270742at2759
PhylomeDBiA1A546
TreeFamiTF315976

Miscellaneous databases

Protein Ontology

More...
PROi
PR:A1A546

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSMUSG00000031621 Expressed in 29 organ(s), highest expression level in intestine
ExpressionAtlasiA1A546 baseline and differential
GenevisibleiA1A546 MM

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...

<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 nameiISX_MOUSE
<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: A1A546
Secondary accession number(s): A1A545, Q9D2Z0
<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: May 29, 2007
Last sequence update: February 6, 2007
Last modified: May 8, 2019
This is version 100 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 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

Complete proteome, Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
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