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UniProtKB - K9LG83 (K9LG83_9ORTO)

Entry version 52 (25 May 2022)
Sequence version 1 (06 Mar 2013)
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Protein

Hemagglutinin-esterase-fusion glycoprotein

Gene

HEF

Organism
Influenza D virus (D/swine/Oklahoma/1334/2011)
Status
Unreviewed-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 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

Binds to the N-acetyl-9-O-acetylneuraminic acid residues on the cell surface, bringing about the attachment of the virus particle to the cell. Plays a major role in the determination of host range restriction and virulence. Class I viral fusion protein. Responsible for penetration of the virus into the cell cytoplasm by mediating the fusion of the membrane of the endocytosed virus particle with the endosomal membrane. Low pH in endosomes induce an irreversible conformational change in HEF2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore. Displays a receptor-destroying activity which is a neuraminidate-O-acetyl esterase. This activity cleaves off any receptor on the cell surface, which would otherwise prevent virions release. These cleavages prevent self-aggregation and ensure the efficient spread of the progeny virus from cell to cell.

ARBA annotation

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei63Beta-D-mannoseCombined sources1
Binding sitei65MannoseCombined sources1
Binding sitei354MannoseCombined sources1

<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

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<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 functionHemagglutininARBA annotation, HydrolaseARBA annotation
Biological processFusion of virus membrane with host endosomal membraneARBA annotation, Fusion of virus membrane with host membrane, Host-virus interaction, Viral attachment to host cellARBA annotation, Viral penetration into host cytoplasm, Virus entry into host cell

<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:
Hemagglutinin-esterase-fusion glycoproteinARBA annotation (EC:3.1.1.53ARBA annotation)
<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:HEFImported
<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>OrganismiInfluenza D virus (D/swine/Oklahoma/1334/2011)Imported
<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 identifieri1173138 [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 lineageiViruses › Riboviria › Orthornavirae › Negarnaviricota › Polyploviricotina › Insthoviricetes › Articulavirales › Orthomyxoviridae › Deltainfluenzavirus ›
<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
  • UP000235200 <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: Genome

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei635 – 662HelicalSequence analysisAdd BLAST28

Keywords - Cellular componenti

Host cell membraneARBA annotation, Host membrane, Membrane, Viral envelope proteinARBA annotation, Virion

<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

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi22Interchain (with C-593)Combined sources
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi28N-linked (GlcNAc...) asparagineCombined sources1
Disulfide bondi122 ↔ 167Combined sources
Disulfide bondi142 ↔ 191Combined sources
Glycosylationi146N-linked (GlcNAc...) asparagineCombined sources1
Disulfide bondi216 ↔ 258Combined sources
Disulfide bondi235 ↔ 322Combined sources
Disulfide bondi243 ↔ 295Combined sources
Glycosylationi346N-linked (GlcNAc...) asparagineCombined sources1
Disulfide bondi352 ↔ 358Combined sources
Disulfide bondi394 ↔ 420Combined sources
Glycosylationi513N-linked (GlcNAc...) asparagineCombined sources1
Glycosylationi562N-linked (GlcNAc...) asparagineCombined sources1
Disulfide bondi593Interchain (with C-22)Combined sources
Disulfide bondi601 ↔ 605Combined sources

Keywords - PTMi

Disulfide bondARBA annotation, GlycoproteinARBA annotation

<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

Homotrimer of disulfide-linked HEF1-HEF2.

ARBA annotation

<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		K9LG83

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		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>Domaini50 – 422Hema_esteraseInterPro annotationAdd BLAST373
Domaini154 – 310Hema_HEFGInterPro annotationAdd BLAST157
Domaini456 – 628Hema_stalkInterPro annotationAdd BLAST173

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>Regioni234 – 236Mannose bindingCombined sources3

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 coili526 – 546Sequence analysisAdd BLAST21

<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 influenza type C/coronaviruses hemagglutinin-esterase family.ARBA annotation

Keywords - Domaini

Coiled coilSequence analysis, Transmembrane, Transmembrane helixSequence analysisARBA annotation

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR008980, Capsid_hemagglutn
IPR007142, Hemagglutn-estrase_core
IPR003860, Hemagglutn-estrase_hemagglutn
IPR001364, Hemagglutn_influenz_A/B
IPR014831, Hemagglutn_stalk_influenz-C

Pfam protein domain database

More...Pfami		View protein in Pfam
PF03996, Hema_esterase, 1 hit
PF02710, Hema_HEFG, 1 hit
PF08720, Hema_stalk, 1 hit
PF00509, Hemagglutinin, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF49818, SSF49818, 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.

K9LG83-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MFLLLATITA ITACQAEREL ICIVQRVNES FSLHSGFGGN VYSMKTEPMT 
        60         70         80         90        100
GFTNVTKGAS VINQKDWIGF GDSRTDLTND QFPASSDVPL AVAKKFRSLS 
       110        120        130        140        150
GASLMLSAFG PPGKVDYLYQ GCGKEKVFYE GVNWSPEAGI DCFGSNWTQT 
       160        170        180        190        200
KKDFYSRIYE AARSSTCMTL VNSLDTKISS TTATAGTASS CSSSWMKSPL 
       210        220        230        240        250
WYAESSVNPG AKPQVCGTEQ SATFTLPTSF GIYKCNKHVV QLCYFVYENK 
       260        270        280        290        300
AKFNTFGCGD YYQNYYDGNG NLIGGMDNRV AAYRGIANAG VKIECPSKIL 
       310        320        330        340        350
NPGTYSIKST PRFLLVPKRS YCFDTDGGYP IQVVQSEWSA SRRSDNATEE 
       360        370        380        390        400
ACLQTEGCIF IKKTTPYVGE ADDNHGDIEM RQLLSGLGNN DTVCVSQSGY 
       410        420        430        440        450
TKGETPFVKD YLSPPKYGRC QLKTDSGRIP TLPSGLIIPQ AGTDSLMRTL 
       460        470        480        490        500
TPATRIFGID DLIFGLLFVG FVAGGVAGGY FWGRSNGGGG GASVSSTQAG 
       510        520        530        540        550
FDKIGKDIQQ LRNDTNAAIE GFNGRIAHDE QAIKNLAKEI EDARAEALVG 
       560        570        580        590        600
ELGIIRSLIV ANISMNLKES LYELANQITK RGGGIAQEAG PGCWYVDSEN 
       610        620        630        640        650
CDASCKEYIF NFNGSATVPT LRPVDTKVVI TSDPYYLGST IALCLLGLVA 
       660 
IAASVGVIWI CCKK
Length:664
Mass (Da):71,643
Last modified:March 6, 2013 - 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:i652F6A0D60E148E6
GO

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
JQ922308 Viral cRNA Translation: AFJ19021.1

<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
JQ922308 Viral cRNA Translation: AFJ19021.1

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
5E5WX-ray2.40A/C19-445[»]
B/D456-612[»]
5E62X-ray2.20A/C19-445[»]
B/D464-612[»]
5E64X-ray2.40A/C19-445[»]
B/D456-621[»]
5E65X-ray2.20A/C19-445[»]
B/D456-621[»]
5E66X-ray3.10A19-445[»]
B456-621[»]
SMRiK9LG83
ModBaseiSearch...
PDBe-KBiSearch...

Family and domain databases

InterProiView protein in InterPro
IPR008980, Capsid_hemagglutn
IPR007142, Hemagglutn-estrase_core
IPR003860, Hemagglutn-estrase_hemagglutn
IPR001364, Hemagglutn_influenz_A/B
IPR014831, Hemagglutn_stalk_influenz-C
PfamiView protein in Pfam
PF03996, Hema_esterase, 1 hit
PF02710, Hema_HEFG, 1 hit
PF08720, Hema_stalk, 1 hit
PF00509, Hemagglutinin, 1 hit
SUPFAMiSSF49818, SSF49818, 1 hit

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 nameiK9LG83_9ORTO
<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: K9LG83
<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/TrEMBL: March 6, 2013
Last sequence update: March 6, 2013
Last modified: May 25, 2022
This is version 52 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 statusiUnreviewed (UniProtKB/TrEMBL)

<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-structureCombined sources
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