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Protein

Envelope glycoprotein B

Gene

gB

Organism
Human herpesvirus 8 type P (isolate GK18) (HHV-8) (Kaposi's sarcoma-associated herpesvirus)
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 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

Envelope glycoprotein that forms spikes at the surface of the virion envelope. Participates in viral entry through an RGD motif that binds ITGAV-ITGB3. Membrane fusion is mediated by the fusion machinery composed at least of gB and the heterodimer gH/gL. May be involved in the fusion between the virion envelope and the outer nuclear membrane during virion egress.3 Publications

<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 - 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

Biological processHost-virus interaction, Viral attachment to host cell, 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_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:
Envelope glycoprotein BUniRule annotation
Short name:
gBUniRule annotation
<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:gBUniRule annotation
Synonyms:ORF8
<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>OrganismiHuman herpesvirus 8 type P (isolate GK18) (HHV-8) (Kaposi's sarcoma-associated herpesvirus)
<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 identifieri868565 [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 lineageiVirusesdsDNA viruses, no RNA stageHerpesviralesHerpesviridaeGammaherpesvirinaeRhadinovirus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 hostiHomo sapiens (Human) [TaxID: 9606]
<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
  • UP000000942 <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: 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_location_section">'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 domaini27 – 732Virion surfaceUniRule annotationAdd BLAST706
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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>Transmembranei733 – 753HelicalUniRule annotationAdd BLAST21
Topological domaini754 – 845IntravirionUniRule annotationAdd BLAST92

GO - Cellular componenti

Keywords - Cellular componenti

Host cell membrane, Host endosome, Host Golgi apparatus, 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 – 26UniRule annotationAdd BLAST26
<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_000042390527 – 845Envelope glycoprotein BUniRule annotationAdd BLAST819

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 bondi68 ↔ 528UniRule annotation
Disulfide bondi85 ↔ 484UniRule annotation
Disulfide bondi157 ↔ 222UniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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>Glycosylationi179N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi254N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi275N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Disulfide bondi315 ↔ 362UniRule annotation
Glycosylationi355N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi368N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi372N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi385N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi408N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi455N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Disulfide bondi550 ↔ 587UniRule annotation
Glycosylationi562N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi599N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi614N-linked (GlcNAc...) asparagine; by hostUniRule annotation1
Glycosylationi628N-linked (GlcNAc...) asparagine; by hostUniRule annotation1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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

A proteolytic cleavage by host furin generates two subunits that remain linked by disulfide bonds.By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
F5HB81

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

Homotrimer; disulfide-linked. Binds to heparan sulfate proteoglycans. Interacts with gH/gL heterodimer (By similarity). Interacts with host ITGAV-ITGB3; this interaction mediates viral entry.UniRule annotationBy similarity1 Publication

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section%27">Interaction</a> section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

WithEntry#Exp.IntActNotes
ITGB3P051062EBI-9027696,EBI-702847From Homo sapiens.

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
1777004, 2 interactors

Protein interaction database and analysis system

More...
IntActi
F5HB81, 1 interactor

<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
F5HB81

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

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>Regioni124 – 130Involved in fusion and/or binding to host membraneUniRule annotation7
Regioni208 – 216Involved in fusion and/or binding to host membraneUniRule annotation9
Regioni678 – 730Hydrophobic membrane proximal regionUniRule annotationAdd BLAST53

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>Motifi830 – 833Internalization motifUniRule annotation4

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 biasi448 – 451Poly-Gly4

<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 herpesviridae glycoprotein B family.UniRule annotation

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

KEGG Orthology (KO)

More...
KOi
K19255

Database of Orthologous Groups

More...
OrthoDBi
VOG0900002K

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.30.29.100, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_04032 HSV_GB, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR035377 Glycoprot_B_PH1
IPR035381 Glycoprot_B_PH2
IPR038631 Glycoprot_B_PH2_sf
IPR000234 Herpes_Glycoprot_B

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF17416 Glycoprot_B_PH1, 1 hit
PF17417 Glycoprot_B_PH2, 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>Sequencei

<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.

<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 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.

F5HB81-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MTPRSRLATL GTVILLVCFC AGAAHSRGDT FQTSSSPTPP GSSSKAPTKP
60 70 80 90 100
GEEASGPKSV DFYQFRVCSA SITGELFRFN LEQTCPDTKD KYHQEGILLV
110 120 130 140 150
YKKNIVPHIF KVRRYRKIAT SVTVYRGLTE SAITNKYELP RPVPLYEISH
160 170 180 190 200
MDSTYQCFSS MKVNVNGVEN TFTDRDDVNT TVFLQPVEGL TDNIQRYFSQ
210 220 230 240 250
PVIYAEPGWF PGIYRVRTTV NCEIVDMIAR SAEPYNYFVT SLGDTVEVSP
260 270 280 290 300
FCYNESSCST TPSNKNGLSV QVVLNHTVVT YSDRGTSPTP QNRIFVETGA
310 320 330 340 350
YTLSWASESK TTAVCPLALW KTFPRSIQTT HEDSFHFVAN EITATFTAPL
360 370 380 390 400
TPVANFTDTY SCLTSDINTT LNASKAKLAS THVPNGTVQY FHTTGGLYLV
410 420 430 440 450
WQPMSAINLT HAQGDSGNPT SSPPPSASPM TTSASRRKRR SASTAAAGGG
460 470 480 490 500
GSTDNLSYTQ LQFAYDKLRD GINQVLEELS RAWCREQVRD NLMWYELSKI
510 520 530 540 550
NPTSVMTAIY GRPVSAKFVG DAISVTECIN VDQSSVNIHK SLRTNSKDVC
560 570 580 590 600
YARPLVTFKF LNSSNLFTGQ LGARNEIILT NNQVETCKDT CEHYFITRNE
610 620 630 640 650
TLVYKDYAYL RTINTTDIST LNTFIALNLS FIQNIDFKAI ELYSSAEKRL
660 670 680 690 700
ASSVFDLETM FREYNYYTHR LAGLREDLDN TIDMNKERFV RDLSEIVADL
710 720 730 740 750
GGIGKTVVNV ASSVVTLCGS LVTGFINFIK HPLGGMLMII IVIAIILIIF
760 770 780 790 800
MLSRRTNTIA QAPVKMIYPD VDRRAPPSGG APTREEIKNI LLGMHQLQQE
810 820 830 840
ERQKADDLKK STPSVFQRTA NGLRQRLRGY KPLTQSLDIS PETGE
Length:845
Mass (Da):93,985
Last modified:June 28, 2011 - 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:iC44A5F2FF29B1E41
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AF148805 Genomic DNA Translation: ABD28851.1

NCBI Reference Sequences

More...
RefSeqi
YP_001129354.1, NC_009333.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
4961501

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
vg:4961501

<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
AF148805 Genomic DNA Translation: ABD28851.1
RefSeqiYP_001129354.1, NC_009333.1

3D structure databases

SMRiF5HB81
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi1777004, 2 interactors
IntActiF5HB81, 1 interactor

Proteomic databases

PRIDEiF5HB81

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi4961501
KEGGivg:4961501

Phylogenomic databases

KOiK19255
OrthoDBiVOG0900002K

Family and domain databases

Gene3Di2.30.29.100, 1 hit
HAMAPiMF_04032 HSV_GB, 1 hit
InterProiView protein in InterPro
IPR035377 Glycoprot_B_PH1
IPR035381 Glycoprot_B_PH2
IPR038631 Glycoprot_B_PH2_sf
IPR000234 Herpes_Glycoprot_B
PfamiView protein in Pfam
PF17416 Glycoprot_B_PH1, 1 hit
PF17417 Glycoprot_B_PH2, 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 nameiGB_HHV8P
<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: F5HB81
<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: October 16, 2013
Last sequence update: June 28, 2011
Last modified: October 10, 2018
This is version 27 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

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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