Protein: Envelope glycoprotein B (gB) (P06436)
Organism: Human herpesvirus 1 (strain F) (HHV-1) (Human herpes simplex virus 1)
Function: Envelope glycoprotein that forms spikes at the surface of virion envelope. Essential for the initial attachment to heparan sulfate moieties of the host cell surface proteoglycans. Involved in fusion of viral and cellular membranes leading to virus entry into the host cell. Following initial binding to its host receptors, 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 (By similarity). Also plays a role, together with gK, in virus-induced cell-to-cell fusion (syncytia formation).
Subcellular location: Virion membrane {ECO:0000255|HAMAP-Rule:MF_04032}; Single-pass type I membrane protein {ECO:0000255|HAMAP-Rule:MF_04032}. Host cell membrane {ECO:0000255|HAMAP-Rule:MF_04032}; Single-pass type I membrane protein {ECO:0000255|HAMAP-Rule:MF_04032}. Host endosome membrane {ECO:0000255|HAMAP-Rule:MF_04032}; Single-pass type I membrane protein {ECO:0000255|HAMAP-Rule:MF_04032}. Host Golgi apparatus membrane {ECO:0000255|HAMAP-Rule:MF_04032}; Single-pass type I membrane protein {ECO:0000255|HAMAP-Rule:MF_04032}. Note=During virion morphogenesis, this protein probably accumulates in the endosomes and trans-Golgi where secondary envelopment occurs. It is probably transported to the cell surface from where it is endocytosed and directed to the trans-Golgi network (TGN). {ECO:0000255|HAMAP-Rule:MF_04032}.
Sequence: MRQGAARGCRWFVVWALLGLTLGVLVASAAPSSPGTPGVAAATQAANGGPATPAPPAPGPAPTGDTKPKKNKKPKNPPPPRPAGDNATVAAGHATLREHLRDIKAENTDANFYVCPPPTGATVVQFEQPRRCPTRPEGQNYTEGIAVVFKENIAPYKFKATMYYKDVTVSQVWFGHRYSQFMGIFEDRAPVPFEEVIDKINAKGVCRSTAKYVRNNLETTAFHRDDHETDMELKPANAATRTSRGWHTTDLKYNPSRVEAFHRYGTTVNCIVEEVDARSVYPYDEFVLATGDFVYMSPFYGYREGSHTEHTSYAADRFKQVDGFYARDLTTKARATAPTTRNLLTTPKFTVAWDWVPKRPSVCTMTKWQEVDEMLRSEYGGSFRFSSDAISTTFTTNLTEYPLSRVDLGDCIGKDARDAMDRIFARRYNATHIKVGQPQYYLANGGFLIAYQPLLSNTLAELYVREHLREQSRKPPNPTPPPPGASANASVERIKTTSSIEFARLQFTYNHIQRHVNDMLGRVAIAWCELQNHELTLWNEARKLNPNAIASATVGRRVSARMLGDVMAVSTCVPVAADNVIVQNSMRISSRPGACYSRPLVSFRYEDQGPLVEGQLGENNELRLTRDAIEPCTVGHRRYFTFGGGYVYFEEYAYSHQLSRADITTVSTFIDLNITMLEDHEFVPLEVYTRHEIKDSGLLDYTEVQRRNQLHDLRFADIDTVIHADANAAMFAGLGAFFEGMGDLGRAVGKVVMGIVGGVVSAVSGVSSFMSNPFGALAVGLLVLAGLAAAFFAFRYVMRLQSNPMKALYPLTTKELKNPTNPDASGEGEEGGDFDEAKLAEAREMIRYMALVSAMERTEHKAKKKGTSALLSAKVTDMVMRKRRNTNYTQVPNKDGDADEDDL
InterPro domains: - IPR000234: Herpesvirus Glycoprotein B (family) [9-902]
- IPR038631: Herpesvirus Glycoprotein B, PH-like domain 2 superfamily (homologous_superfamily) [349-464]
- IPR055341: Herpesvirus glycoprotein B ectodomain C-terminal (domain) [499-720]
- IPR035377: Herpesvirus Glycoprotein B, PH-like domain 1 (domain) [152-363]
- IPR035381: Herpesvirus Glycoprotein B, PH-like domain 2 (domain) [365-462]
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0005515 (protein binding), GO:0042802 (identical protein binding)
Biological Process (BP): GO:0008150 (biological process), GO:0050789 (regulation of biological process), GO:0048519 (negative regulation of biological process), GO:0065007 (biological regulation), GO:0048523 (negative regulation of cellular process), GO:0050794 (regulation of cellular process), GO:0008285 (negative regulation of cell population proliferation), GO:0042127 (regulation of cell population proliferation)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0018995 (host cellular component), GO:0033643 (host cell part), GO:0043657 (host cell), GO:0033646 (host intracellular part), GO:0043656 (host intracellular region), GO:0033655 (host cell cytoplasm part), GO:0030430 (host cell cytoplasm)