P20993 · PG143_VACCC

Function

function

Envelope protein part of the entry-fusion complex responsible for the virus membrane fusion with host cell membrane during virus entry. Also plays a role in cell-cell fusion (syncytium formation).

GO annotations

all annotationsall molecular functionvirus receptor activitydna bindingrna bindingcytoskeletal motor activitycatalytic activitygtpase activitystructural molecule activitytransporter activitycytoskeletal protein bindinglipid bindingcyclase activityantioxidant activityoxidoreductase activitytransferase activityhydrolase activitylyase activityisomerase activityligase activityprotein tag activitycargo receptor activityhistone bindingprotein folding chaperonetranslation regulator activitynutrient reservoir activityreceptor ligand activitymolecular transducer activitymolecular adaptor activitytoxin activitycell adhesion mediator activitymolecular function regulator activityvirus coreceptor activitycatalytic activity, acting on a proteincatalytic activity, acting on dnacatalytic activity, acting on rnamolecular carrier activitytranscription regulator activitygeneral transcription initiation factor activitymolecular sensor activitymolecular sequestering activityatp-dependent activityother molecular functionall biological processmitotic cell cyclecytokinesiscytoplasmic translationimmune system processmuscle system processcirculatory system processrenal system processrespiratory system processcarbohydrate metabolic processgeneration of precursor metabolites and energydna replicationdna repairdna recombinationchromatin organizationdna-templated transcriptionregulation of dna-templated transcriptiontrna metabolic processprotein foldingprotein glycosylationamino acid metabolic processmodified amino acid metabolic processlipid metabolic processvitamin metabolic processsulfur compound metabolic processintracellular protein transportnucleocytoplasmic transportautophagyinflammatory responsemitochondrion organizationcytoskeleton organizationmicrotubule-based movementperoxisome organizationlysosome organizationchromosome segregationcell adhesionestablishment or maintenance of cell polarityprogrammed cell deathphotosynthesismrna metabolic processsnrna metabolic processvesicle-mediated transportreproductive processdigestive system processsignalingcell differentiationprotein catabolic processextracellular matrix organizationregulatory ncrna-mediated gene silencingtelomere organizationcell junction organizationwound healingribosome biogenesiscilium organizationanatomical structure developmentcell motilitynervous system processendocrine processprotein maturationtransmembrane transportnucleobase-containing small molecule metabolic processhepaticobiliary system processmembrane organizationprotein-containing complex assemblycell wall organization or biogenesisnitrogen cycle metabolic processprotein localization to plasma membranedefense response to other organismdetoxificationmeiotic nuclear divisionmitotic nuclear divisionmitochondrial gene expressioncarbohydrate derivative metabolic processother biological processall cellular componentnuclear chromosomeextracellular regionextracellular spacecell wallnucleusnuclear envelopenucleoplasmchromosomenucleolusmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuslipid dropletmicrotubule organizing centercytosolribosomecytoskeletonplasma membraneciliumplastidthylakoidexternal encapsulating structureextracellular matrixcytoplasmic vesicleorganelleother cellular component
Cell color indicative of number of GO terms
AspectTerm
Cellular Componentmembrane
Cellular Componentviral envelope
Cellular Componentvirion membrane
Molecular FunctionATP binding
Molecular FunctionDNA binding
Molecular Functionhelicase activity
Molecular Functionhydrolase activity
Biological ProcessDNA-templated transcription termination
Biological Processmembrane fusion involved in viral entry into host cell
Biological Processsymbiont entry into host cell

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Virion membrane protein OPG143

Gene names

    • Name
      OPG143
    • ORF names
      A16L

Organism names

Accessions

  • Primary accession
    P20993

Proteomes

Subcellular Location

Virion membrane
; Single-pass type II membrane protein
Note: Component of the mature virion (MV) membrane. The mature virion is located in the cytoplasm of infected cells and is probably released by cell lysis.

Features

Showing features for topological domain, transmembrane.

TypeIDPosition(s)Description
Topological domain2-342Virion surface
Transmembrane343-363Helical; Signal-anchor for type II membrane protein
Topological domain364-378Intravirion

Keywords

Phenotypes & Variants

Features

Showing features for mutagenesis.

TypeIDPosition(s)Description
Mutagenesis2Complete loss of myristoylation.

PTM/Processing

Features

Showing features for initiator methionine, lipidation, chain.

TypeIDPosition(s)Description
Initiator methionine1Removed; by host
Lipidation2N-myristoyl glycine; by host
ChainPRO_00000992512-378Virion membrane protein OPG143

Post-translational modification

Most cysteines are linked by disulfide bonds. They are created by the viral disulfide bond formation pathway, a poxvirus-specific redox pathway that operates on the cytoplasmic side of the MV membranes.

Keywords

PTM databases

Expression

Induction

Expressed in the late phase of the viral replicative cycle.

Keywords

Interaction

Subunit

Part of a stable entry-fusion complex (EFC) which is at least composed of proteins OPG143, OPG147, OPG155, OPG086, OPG094, OPG107, OPG104, and OPG099. Formation of the viral membrane is necessary for the assembly of the complex. Interacts with OPG094. Interacts with OPG153.

Structure

3D structure databases

Family & Domains

Sequence similarities

Belongs to the orthopoxvirus OPG143 family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    378
  • Mass (Da)
    43,562
  • Last updated
    2007-01-23 v3
  • Checksum
    05ED614AA1D11A19
MGAAVTLNRIKIAPGIADIRDKYMELGFNYPEYNRAVKFAEESYTYYYETSPGEIKPKFCLIDGMSIDHCSSFIVPEFAKQYVLIHGEPCSSFKFRPGSLIYYQNEVTPEYIKDLKHATDYIASGQRCHFIKKDYLLGDSDSVAKCCSKTNTKHCPKIFNNNYKTEHCDDFMTGFCRNDPGNPNCLEWLRAKRKPAMSTYSDICSKHMDARYCSEFIRIIRPDYFTFGDTALYVFCNDHKGNRNCWCANYPKSNSGDKYLGPRVCWLHECTDESRDRKWLYYNQDVQRTRCKYVGCTINVNSLALKNSQAELTSNCTRTTSAVGDVHHPGEPVVKDKIKLPTWLGAAITLVVISVIFYFISIYSRPKIKTNDINVRRR

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
M35027
EMBL· GenBank· DDBJ
AAA48138.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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