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UniProtKB - P03459 (HEMA_I34A0)

Entry version 135 (07 Apr 2021)
Sequence version 1 (21 Jul 1986)
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Protein

Hemagglutinin

Gene

HA

Organism
Influenza A virus (strain A/Fowl plague virus/Rostock/8/1934 H7N1)
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 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 sialic acid-containing receptors on the cell surface, bringing about the attachment of the virus particle to the cell. This attachment induces virion internalization of about two third of the virus particles through clathrin-dependent endocytosis and about one third through a clathrin- and caveolin-independent pathway. 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 induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore.
Binds to sialic acid-containing receptors on the cell surface, bringing about the attachment of the virus particle to the cell. This attachment induces virion internalization either through clathrin-dependent endocytosis or through clathrin- and caveolin-independent pathway. 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 induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore.UniRule annotation

Miscellaneous

Major glycoprotein, comprises over 80% of the envelope proteins present in virus particle.
The extent of infection into host organism is determined by HA. Influenza viruses bud from the apical surface of polarized epithelial cells (e.g. bronchial epithelial cells) into lumen of lungs and are therefore usually pneumotropic. The reason is that HA is cleaved by tryptase clara which is restricted to lungs. However, HAs of H5 and H7 pantropic avian viruses subtypes can be cleaved by furin and subtilisin-type enzymes, allowing the virus to grow in other organs than lungs.
The influenza A genome consist of 8 RNA segments. Genetic variation of hemagglutinin and/or neuraminidase genes results in the emergence of new influenza strains. The mechanism of variation can be the result of point mutations or the result of genetic reassortment between segments of two different strains.
Mutants ts1 and ts227 have a temperature-sensitive defect in the transport of the hemagglutinin from the rough endoplasmic reticulum to the Golgi apparatus.Curated

<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 functionHemagglutinin
Biological processClathrin- and caveolin-independent endocytosis of virus by host, Clathrin-mediated endocytosis of virus by host, Fusion of virus membrane with host endosomal membrane, Fusion of virus membrane with host membrane, Host-virus interaction, Viral attachment to host cell, Viral penetration into host cytoplasm, Virus endocytosis by host, 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:
HemagglutininUniRule annotation
Cleaved into the following 2 chains:
Hemagglutinin HA1 chainUniRule annotation
Hemagglutinin HA2 chainUniRule 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:HAUniRule annotation
<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 A virus (strain A/Fowl plague virus/Rostock/8/1934 H7N1)
<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 identifieri392810 [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 › Alphainfluenzavirus ›
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section only exists in viral entries and indicates the host(s) either as a specific organism or taxonomic group of organisms that are susceptible to be infected by a virus.<p><a href='/help/virus_host' target='_top'>More...</a></p>Virus hostiAves [TaxID: 8782]

<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 subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini19 – 529ExtracellularUniRule annotationAdd BLAST511
<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>Transmembranei530 – 550HelicalUniRule annotationAdd BLAST21
Topological domaini551 – 563CytoplasmicUniRule annotationAdd BLAST13

Keywords - Cellular componenti

Host cell membrane, Host membrane, Membrane, Viral envelope protein, 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

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 18UniRule annotationAdd BLAST18
<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_000044037519 – 563HemagglutininUniRule annotationAdd BLAST545
ChainiPRO_000044037619 – 341Hemagglutinin HA1 chainUniRule annotationAdd BLAST323
ChainiPRO_0000038953343 – 563Hemagglutinin HA2 chainUniRule annotationAdd BLAST221

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 bondi22 ↔ 479Interchain (between HA1 and HA2 chains)UniRule annotation
<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>GlycosylationiCAR_00009830N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
GlycosylationiCAR_00009946N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Disulfide bondi60 ↔ 286UniRule annotation
Disulfide bondi72 ↔ 84UniRule annotation
Disulfide bondi105 ↔ 147UniRule annotation
GlycosylationiCAR_000100141N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
GlycosylationiCAR_000101167N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
GlycosylationiCAR_000102249N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Disulfide bondi290 ↔ 314UniRule annotation
GlycosylationiCAR_000103424N-linked (GlcNAc...) (high mannose) asparagine; by host1 Publication1
Glycosylationi424N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Disulfide bondi486 ↔ 490UniRule annotation
GlycosylationiCAR_000104496N-linked (GlcNAc...) (high mannose) asparagine; by host1 Publication1
Glycosylationi496N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section specifies the position(s) and the type of covalently attached lipid group(s).<p><a href='/help/lipid' target='_top'>More...</a></p>Lipidationi559S-palmitoyl cysteine; by hostUniRule annotation1
Lipidationi562S-palmitoyl cysteine; by hostUniRule annotation1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Palmitoylated.UniRule annotation
In natural infection, inactive HA is matured into HA1 and HA2 outside the cell by one or more trypsin-like, arginine-specific endoprotease secreted by the bronchial epithelial cells. One identified protease that may be involved in this process is secreted in lungs by Clara cells.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei342 – 343Cleavage; by hostUniRule annotation2

Keywords - PTMi

Disulfide bond, Glycoprotein, Lipoprotein, Palmitate

PTM databases

GlyConnect protein glycosylation platform

More...GlyConnecti		209, 16 N-Linked glycans (7 sites)

SwissPalm database of S-palmitoylation events

More...SwissPalmi		P03459

<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 HA1-HA2.

UniRule annotation

Protein-protein interaction databases

Protein interaction database and analysis system

More...IntActi		P03459, 1 interactor

Molecular INTeraction database

More...MINTi		P03459

<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		P03459

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

<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 viruses hemagglutinin family.UniRule annotation

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.90.209.20, 1 hit

HAMAP database of protein families

More...HAMAPi		MF_04072, INFV_HEMA, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR008980, Capsid_hemagglutn
IPR013828, Hemagglutn_HA1_a/b_dom_sf
IPR000149, Hemagglutn_influenz_A
IPR001364, Hemagglutn_influenz_A/B

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00509, Hemagglutinin, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR00330, HEMAGGLUTN1
PR00329, HEMAGGLUTN12

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.

<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 in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

P03459-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNTQILVFAL VAVIPTNADK ICLGHHAVSN GTKVNTLTER GVEVVNATET 
        60         70         80         90        100
VERTNIPKIC SKGKRTTDLG QCGLLGTITG PPQCDQFLEF SADLIIERRE 
       110        120        130        140        150
GNDVCYPGKF VNEEALRQIL RGSGGIDKET MGFTYSGIRT NGTTSACRRS 
       160        170        180        190        200
GSSFYAEMEW LLSNTDNASF PQMTKSYKNT RRESALIVWG IHHSGSTTEQ 
       210        220        230        240        250
TKLYGSGNKL ITVGSSKYHQ SFVPSPGTRP QINGQSGRID FHWLILDPND 
       260        270        280        290        300
TVTFSFNGAF IAPNRASFLR GKSMGIQSDV QVDANCEGEC YHSGGTITSR 
       310        320        330        340        350
LPFQNINSRA VGKCPRYVKQ ESLLLATGMK NVPEPSKKRE KRGLFGAIAG 
       360        370        380        390        400
FIENGWEGLV DGWYGFRHQN AQGEGTAADY KSTQSAIDQI TGKLNRLIEK 
       410        420        430        440        450
TNQQFELIDN EFTEVEKQIG NLINWTKDFI TEVWSYNAEL LVAMENQHTI 
       460        470        480        490        500
DLADSEMNKL YERVRKQLRE NAEEDGTGCF EIFHKCDDDC MASIRNNTYD 
       510        520        530        540        550
HSKYREEAMQ NRIQIDPVKL SSGYKDVILW FSFGASCFLL LAIAVGLVFI 
       560 
CVKNGNMRCT ICI
Length:563
Mass (Da):62,703
Last modified:July 21, 1986 - 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:i544C0520B83714E2
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 conflicti340E → K in AAA43150 (PubMed:3840634).Curated1
Sequence conflicti429F → S in AAA43150 (PubMed:3840634).Curated1
Sequence conflicti441L → I in AAA43150 (PubMed:3840634).Curated1
Sequence conflicti459K → R in AAA43150 (PubMed:3840634).Curated1
Sequence conflicti545V → M in AAA43150 (PubMed:3840634).Curated1

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural varianti113E → G in strain: mutant ts227. 1
Natural varianti293S → G in strain: mutant ts1. 1
Natural varianti416E → G in strain: mutant ts1. 1
Natural varianti475D → N in strain: mutant ts227. 1

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
V01105 Genomic RNA Translation: CAA24294.1
M24457 Genomic RNA Translation: AAA43150.1

<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
V01105 Genomic RNA Translation: CAA24294.1
M24457 Genomic RNA Translation: AAA43150.1

3D structure databases

SMRiP03459
ModBaseiSearch...

Protein-protein interaction databases

IntActiP03459, 1 interactor
MINTiP03459

PTM databases

GlyConnecti209, 16 N-Linked glycans (7 sites)
SwissPalmiP03459

Family and domain databases

Gene3Di3.90.209.20, 1 hit
HAMAPiMF_04072, INFV_HEMA, 1 hit
InterProiView protein in InterPro
IPR008980, Capsid_hemagglutn
IPR013828, Hemagglutn_HA1_a/b_dom_sf
IPR000149, Hemagglutn_influenz_A
IPR001364, Hemagglutn_influenz_A/B
PfamiView protein in Pfam
PF00509, Hemagglutinin, 1 hit
PRINTSiPR00330, HEMAGGLUTN1
PR00329, HEMAGGLUTN12
SUPFAMiSSF49818, SSF49818, 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 nameiHEMA_I34A0
<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: P03459
Secondary accession number(s): Q67087
<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 21, 1986
Last sequence update: July 21, 1986
Last modified: April 7, 2021
This is version 135 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 programViral 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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