6533b838fe1ef96bd12a5169
RESEARCH PRODUCT
Myristylation is involved in intracellular retention of hepatitis B virus envelope proteins
Reinhild PrangeA. ClemenRolf E. Streecksubject
Hepatitis B virusvirusesDNA Mutational AnalysisImmunologyIn Vitro TechniquesBiologyVirus Replicationmedicine.disease_causeMyristic AcidMicrobiologyVirusStructure-Activity RelationshipCapsidViral Envelope ProteinsViral envelopeVirologymedicineHumansSecretionProtein PrecursorsHepatitis B virusMutationHepatitis B Surface Antigensbiology.organism_classificationVirologyCell CompartmentationMolecular WeightCapsidHepadnaviridaeViral replicationInsect ScienceMyristic AcidsProtein Processing Post-TranslationalResearch Articledescription
The envelope of hepatitis B virus contains three related proteins, one of which is myristylated. The nonmyristylated small and middle protein are assembled into empty envelope particles which are secreted from cells, whereas the myristylated large envelope protein is mainly found in complete virions and is not secreted in the absence of the nucleocapsid. The block to secretion can be partially overcome by mutation or deletion of the myristylation site. Creation of a myristyl attachment site in the small protein impairs the secretion of empty envelope particles but not their intracellular assembly. Myristylation may therefore play a crucial role in hepatitis B virus replication by channeling the envelope proteins into complete viral particles.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1991-07-01 | Journal of Virology |