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Details on Person UniProt:F5HAK9 gH

Class:IdReferenceGeneProduct:9973256
_chainChangeLogsignal peptide:1-21 for 9973256 added on Fri Feb 20 2026;chain:22-730 for 9973256 added on Fri Feb 20 2026
_displayNameUniProt:F5HAK9 gH
_timestamp2026-02-20 21:39:50
chainsignal peptide:1-21
chain:22-730
checksumB5DB4B733DDFE451
commentFUNCTION The heterodimer glycoprotein H-glycoprotein L is required for the fusion of viral and plasma membranes leading to virus entry into the host cell. Following initial binding to host receptor, membrane fusion is mediated by the fusion machinery composed of gB and the heterodimer gH/gL. May also be involved in the fusion between the virion envelope and the outer nuclear membrane during virion morphogenesis (By similarity). Targets host EPHA2 to promote KSHV entry.SUBUNIT Interacts with glycoprotein L (gL); this interaction is necessary for the correct processing and cell surface expression of gH. The heterodimer gH/gL seems to interact with gB trimers during fusion (By similarity). When in complex with gL, interacts with host EPHA2; this interaction triggers EPHA2 phosphorylation and endocytosis allowing KSHV entry.SUBCELLULAR LOCATION 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).PTM N-glycosylated, O-glycosylated, and sialylated.SIMILARITY Belongs to the herpesviridae glycoprotein H family.
created[InstanceEdit:9973335] Orlic-Milacic, Marija, 2025-11-14
descriptionrecommendedName: fullName evidence="1"Envelope glycoprotein H shortName evidence="1"gH
geneNamegH
ORF22
identifierF5HAK9
isSequenceChangedFALSE
keywordFusion of virus membrane with host cell membrane
Fusion of virus membrane with host membrane
Glycoprotein
Host cell membrane
Host endosome
Host membrane
Membrane
Reference proteome
Sialic acid
Signal
Transmembrane
Transmembrane helix
Viral envelope protein
Viral penetration into host cytoplasm
Virion
Virus entry into host cell
modified[InstanceEdit:9983091] Weiser, Joel, 2026-02-20
namegH
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierGH_HHV8P
sequenceLength730
species[Species:2671781] Human herpesvirus 8
(referenceEntity)[EntityWithAccessionedSequence:9973163] GlcNAc-gH [plasma membrane] [Human herpesvirus 8]
[EntityWithAccessionedSequence:9973229] gH [virion membrane] [Human herpesvirus 8]
[EntityWithAccessionedSequence:9973330] gH [endosome membrane] [Human herpesvirus 8]
[EntityWithAccessionedSequence:9973339] gH [endoplasmic reticulum membrane] [Human herpesvirus 8]
[EntityWithAccessionedSequence:9973397] GlcNAc-gH [trans-Golgi network membrane] [Human herpesvirus 8]
[EntityWithAccessionedSequence:9987194] GlcNAc-gH [viral envelope] [Human herpesvirus 8]
(referenceSequence)[GroupModifiedResidue:9980670] N4-(N-acetylamino)glucosyl-L-asparagine (high-mannose N-glycan-yl group) at unknown position
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No pathways have been reviewed or authored by UniProt:F5HAK9 gH (9973256)