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Entry version 126 (02 Dec 2020)
Sequence version 2 (29 May 2007)
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Protein

Hepatocyte nuclear factor 4-alpha

Gene

hnf4a

Organism
Xenopus laevis (African clawed frog)
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

Transcriptional regulator; binds and activates the promoter for the HNF1-alpha gene (PubMed:8808405). Potential initiator of a transcriptional cascade within a subset of cells committed to a specific developmental program (PubMed:8808405). Could be a determinant for asymmetry in early development (PubMed:8808405). May play a role in the regulation of the circadian clock (By similarity).By similarity1 Publication

Miscellaneous

Binds fatty acids.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 bindingi57 – 132Nuclear receptorPROSITE-ProRule annotationAdd BLAST76
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section specifies the position(s) and type(s) of zinc fingers within the protein.<p><a href='/help/zn_fing' target='_top'>More...</a></p>Zinc fingeri60 – 80NR C4-typePROSITE-ProRule annotationAdd BLAST21
Zinc fingeri96 – 120NR C4-typePROSITE-ProRule annotationAdd BLAST25

<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, Receptor, Repressor
Biological processBiological rhythms, Transcription, Transcription regulation
LigandMetal-binding, Zinc

<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:
Hepatocyte nuclear factor 4-alpha
Short name:
HNF-4-alpha
Alternative name(s):
Nuclear receptor subfamily 2 group A member 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:hnf4a
Synonyms:hnf4, nr2a1
<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>OrganismiXenopus laevis (African clawed frog)
<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 identifieri8355 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusXenopus

Organism-specific databases

Xenopus laevis and tropicalis biology and genomics resource

More...
Xenbasei
XB-GENE-864872, hnf4a.S

<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

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_00000535611 – 464Hepatocyte nuclear factor 4-alphaAdd BLAST464

<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 liver and kidney.

<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

Maternal protein which is distributed within an animal-to-vegetal gradient in the embryo. Present throughout the entire development.

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimerization is required for HNF4-alpha to bind to its recognition site.

By similarity

<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
Q91766

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>Domaini147 – 376NR LBDPROSITE-ProRule annotationAdd BLAST230

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>Motifi367 – 3759aaTADBy similarity9

<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 9aaTAD motif is a transactivation domain present in a large number of yeast and animal transcription factors.By similarity

<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

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri60 – 80NR C4-typePROSITE-ProRule annotationAdd BLAST21
Zinc fingeri96 – 120NR C4-typePROSITE-ProRule annotationAdd BLAST25

Keywords - Domaini

Zinc-finger

Phylogenomic databases

Database of Orthologous Groups

More...
OrthoDBi
622732at2759

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.565.10, 1 hit
3.30.50.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR039067, HNF4A
IPR035500, NHR-like_dom_sf
IPR000536, Nucl_hrmn_rcpt_lig-bd
IPR001723, Nuclear_hrmn_rcpt
IPR000003, Retinoid-X_rcpt/HNF4
IPR001628, Znf_hrmn_rcpt
IPR013088, Znf_NHR/GATA

The PANTHER Classification System

More...
PANTHERi
PTHR24083:SF41, PTHR24083:SF41, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00104, Hormone_recep, 1 hit
PF00105, zf-C4, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00545, RETINOIDXR
PR00398, STRDHORMONER
PR00047, STROIDFINGER

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00430, HOLI, 1 hit
SM00399, ZnF_C4, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF48508, SSF48508, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51843, NR_LBD, 1 hit
PS00031, NUCLEAR_REC_DBD_1, 1 hit
PS51030, NUCLEAR_REC_DBD_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>Sequencei

<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.

Q91766-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MRLSKALIDM DMADYTEALD PAYTTLEFEN MQVLSIGTDT STSDVTSLSA
60 70 80 90 100
SNSIGINSLC AICGDRATGK HYGASSCDGC KGFFRRSVRK NHMYSCRFSR
110 120 130 140 150
QCVVDKDKRN QCRYCRLKKC FRAGMKKEAV QNERDRISTR RSSYEDSSLP
160 170 180 190 200
SINVLIQAEV LSQQITSSVG VLNTDIRGKK IACIIDVCDS MKQQLLVLVE
210 220 230 240 250
WAKYIPAFCE LPLDDQVALL RAHAGEHLLL GATKRSMMFK DILLLGNDRL
260 270 280 290 300
IPRNCPELEV GRVAVRILDE LVLPFQELQI DDNEYACLKA IIFFDPDAKG
310 320 330 340 350
LSDPTKIKRM RYQVQVSLED YINDRQYDSR GRFGELLLLL PTLQSITWQM
360 370 380 390 400
IEQIQFVKLF GMAKIDNLLQ EMLLGGSANE ASHTHHHLHP HLVQDHLATN
410 420 430 440 450
VIVANNTLPS QLHNGQMSTP ETPQPSPPAG SGAEQYKIVH GTIASINKQP
460
TSIPQSTITK QEAM
Length:464
Mass (Da):51,967
Last modified:May 29, 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:iB42ABD572989E484
GO

<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 CAA85763 differs from that shown. Reason: Erroneous initiation.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 conflicti335E → D in AAH42224 (Ref. 2) Curated1

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
Z37526 mRNA Translation: CAA85763.1 Different initiation.
BC042224 mRNA Translation: AAH42224.1

NCBI Reference Sequences

More...
RefSeqi
NP_001080070.1, NM_001086601.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
379762

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
xla:379762

<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
Z37526 mRNA Translation: CAA85763.1 Different initiation.
BC042224 mRNA Translation: AAH42224.1
RefSeqiNP_001080070.1, NM_001086601.1

3D structure databases

SMRiQ91766
ModBaseiSearch...

Genome annotation databases

GeneIDi379762
KEGGixla:379762

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
379762
XenbaseiXB-GENE-864872, hnf4a.S

Phylogenomic databases

OrthoDBi622732at2759

Family and domain databases

Gene3Di1.10.565.10, 1 hit
3.30.50.10, 1 hit
InterProiView protein in InterPro
IPR039067, HNF4A
IPR035500, NHR-like_dom_sf
IPR000536, Nucl_hrmn_rcpt_lig-bd
IPR001723, Nuclear_hrmn_rcpt
IPR000003, Retinoid-X_rcpt/HNF4
IPR001628, Znf_hrmn_rcpt
IPR013088, Znf_NHR/GATA
PANTHERiPTHR24083:SF41, PTHR24083:SF41, 1 hit
PfamiView protein in Pfam
PF00104, Hormone_recep, 1 hit
PF00105, zf-C4, 1 hit
PRINTSiPR00545, RETINOIDXR
PR00398, STRDHORMONER
PR00047, STROIDFINGER
SMARTiView protein in SMART
SM00430, HOLI, 1 hit
SM00399, ZnF_C4, 1 hit
SUPFAMiSSF48508, SSF48508, 1 hit
PROSITEiView protein in PROSITE
PS51843, NR_LBD, 1 hit
PS00031, NUCLEAR_REC_DBD_1, 1 hit
PS51030, NUCLEAR_REC_DBD_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 nameiHNF4A_XENLA
<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: Q91766
Secondary accession number(s): Q8AVK3
<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, 1999
Last sequence update: May 29, 2007
Last modified: December 2, 2020
This is version 126 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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