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(-) Description

Title :  FOOT-AND-MOUTH DISEASE VIRUS/ OLIGOSACCHARIDE RECEPTOR COMPLEX.
 
Authors :  E. E. Fry, S. M. Lea, T. Jackson, J. W. I. Newman, F. M. Ellard, W. E. Blakem R. Abu-Ghazaleh, A. Samuel, A. M. Q. King, D. I. Stuart
Date :  20 May 99  (Deposition) - 18 Jun 99  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym. Unit :  1,2,3,4
Biol. Unit 1:  1,2,3,4  (60x)
Keywords :  Virus, Heparan Sulphate, Virus-Receptor Interactions/Protein- Carbohydrate Interactions, Virus/Viral Protein, Icosahedral Virus (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  E. E. Fry, S. M. Lea, T. Jackson, J. W. Newman, F. M. Ellard, W. E. Blakemore, R. Abu-Ghazaleh, A. Samuel, A. M. King, D. I. Stuart
The Structure And Function Of A Foot-And-Mouth Disease Virus-Oligosaccharide Receptor Complex.
Embo J. V. 18 543 1999
PubMed-ID: 9927414  |  Reference-DOI: 10.1093/EMBOJ/18.3.543
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN (GENOME POLYPROTEIN)
    Chains1
    Organism ScientificFOOT-AND-MOUTH DISEASE VIRUS
    Organism Taxid12110
    Other DetailsSTRAIN BFS, 1860
    Other Details - SourceGROWN IN BHK CELLS
    SynonymFMDV
 
Molecule 2 - PROTEIN (GENOME POLYPROTEIN)
    Chains2
    Organism ScientificFOOT-AND-MOUTH DISEASE VIRUS
    Organism Taxid12110
    Other DetailsSTRAIN BFS, 1860
    Other Details - SourceGROWN IN BHK CELLS
    SynonymFMDV
 
Molecule 3 - PROTEIN (GENOME POLYPROTEIN)
    Chains3
    Organism ScientificFOOT-AND-MOUTH DISEASE VIRUS
    Organism Taxid12110
    Other DetailsSTRAIN BFS, 1860
    Other Details - SourceGROWN IN BHK CELLS
    SynonymFMDV
 
Molecule 4 - PROTEIN (GENOME POLYPROTEIN)
    Chains4
    Organism ScientificFOOT-AND-MOUTH DISEASE VIRUS
    Organism Taxid12110
    Other DetailsSTRAIN BFS, 1860
    Other Details - SourceGROWN IN BHK CELLS
    SynonymFMDV

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit 1234
Biological Unit 1 (60x)1234

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 5)

Asymmetric Unit (3, 5)
No.NameCountTypeFull Name
1IDS1Ligand/Ion2-O-SULFO-ALPHA-L-IDOPYRANURONIC ACID
2IDX2Ligand/Ion2-O-SULFO-ALPHA-L-GULOPYRANURONIC ACID
3SGN2Ligand/IonN,O6-DISULFO-GLUCOSAMINE
Biological Unit 1 (3, 300)
No.NameCountTypeFull Name
1IDS60Ligand/Ion2-O-SULFO-ALPHA-L-IDOPYRANURONIC ACID
2IDX120Ligand/Ion2-O-SULFO-ALPHA-L-GULOPYRANURONIC ACID
3SGN120Ligand/IonN,O6-DISULFO-GLUCOSAMINE

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR 1:197 , SGN 1:702BINDING SITE FOR RESIDUE IDX 1 701
2AC2SOFTWAREIDX 1:701 , IDS 1:703 , HOH 1:921 , HOH 1:927 , HOH 1:929 , HOH 1:953BINDING SITE FOR RESIDUE SGN 1 702
3AC3SOFTWAREHIS 1:195 , SGN 1:702 , SGN 1:704 , IDX 1:705 , HOH 1:921 , HOH 1:926 , HOH 1:927 , HOH 1:954 , LYS 2:134BINDING SITE FOR RESIDUE IDS 1 703
4AC4SOFTWAREHIS 1:195 , IDS 1:703 , IDX 1:705 , HOH 1:919 , HOH 1:920 , HOH 1:931 , HOH 1:954 , HOH 1:955 , LYS 2:134 , ARG 2:135 , TYR 2:138BINDING SITE FOR RESIDUE SGN 1 704
5AC5SOFTWAREIDS 1:703 , SGN 1:704 , HOH 1:926 , HOH 1:930 , HOH 2:409 , HOH 2:413BINDING SITE FOR RESIDUE IDX 1 705

(-) SS Bonds  (1, 1)

Asymmetric Unit
No.Residues
11:134 -2:130

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Ala 1:110 -Pro 1:111
2Leu 2:83 -Pro 2:84

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 2)

Asymmetric Unit (2, 2)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_POLG_FMDVO_001 *I780VPOLG_FMDVO  ---  ---1V56V
2UniProtVAR_POLG_FMDVO_002 *G808RPOLG_FMDVO  ---  ---1G84R
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (2, 120)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_POLG_FMDVO_001 *I780VPOLG_FMDVO  ---  ---1V56V
2UniProtVAR_POLG_FMDVO_002 *G808RPOLG_FMDVO  ---  ---1G84R
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1QQP)

(-) Exons   (0, 0)

(no "Exon" information available for 1QQP)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain 1 from PDB  Type:PROTEIN  Length:188
 aligned with POLG_FMDVO | P03305 from UniProtKB/Swiss-Prot  Length:2332

    Alignment length:210
                                   734       744       754       764       774       784       794       804       814       824       834       844       854       864       874       884       894       904       914       924       934
           POLG_FMDVO   725 TTSAGESADPVTTTVENYGGETQIQRRQHTDVSFIMDRFVKVTPQNQINILDLMQIPSHTLVGALLRASTYYFSDLEIAVKHEGDLTWVPNGAPEKALDNTTNPTAYHKAPLTRLALPYTAPHRVLATVYNGECRYNRNAVPNLRGDLQVLAQKVARTLPTSFNYGAIKATRVTELLYRMKRAETYCPRPLLAIHPTEARHKQKIVAPVK 934
               SCOP domains d1qqp1_ 1: Aphthovirus (Foot-and-mouth disease virus) coat proteins                                                                                                                                                SCOP domains
               CATH domains 1qqp100 1:1-210  [code=2.60.120.20, no name defined]                                                                                                                                                               CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..............hhhh.........hhh.hhhhh..eeee.....eee..hhh.....hhhhhhhh..eee.eeeeeeeee...eee.....hhhhh.............eeeee.................----------------------..........eee..eeeeeeeeee..eee........................ Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------V---------------------------R------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1qqp 1   1 TTSAGESADPVTTTVENYGGETQIQRRQHTDVSFIMDRFVKVTPQNQINILDLMQVPSHTLVGALLRASTYYFSDLEIAVKHEGDLTWVPNGAPEKALDNTTNPTAYHKAPLTRLALPYTAPHRVLATVYNGEC----------------------RTLPTSFNYGAIKATRVTELLYRMKRAETYCPRPLLAIHPTEARHKQKIVAPVK 210
                                    10        20        30        40        50        60        70        80        90       100       110       120       130   |     -         -      |160       170       180       190       200       210
                                                                                                                                                               134                    157                                                     

Chain 2 from PDB  Type:PROTEIN  Length:216
 aligned with POLG_FMDVO | P03305 from UniProtKB/Swiss-Prot  Length:2332

    Alignment length:218
                                   296       306       316       326       336       346       356       366       376       386       396       406       416       426       436       446       456       466       476       486       496        
           POLG_FMDVO   287 DKKTEETTLLEDRILTTRNGHTTSTTQSSVGVTYGYATAEDFVSGPNTSGLETRVVQAERFFKTHLFDWVTSDSFGRCHLLELPTDHKGVYGSLTDSYAYMRNGWDVEVTAVGNQFNGGCLLVAMVPELYSIQKRELYQLTLFPHQFINPRTNMTAHITVPFVGVNRYDQYKVHKPWTLVVMVVAPLTVNTEGAPQIKVYANIAPTNVHVAGEFPSKE 504
               SCOP domains d1qq  p.1 4:,2: Aphthovirus (Foot-and-mouth disease virus) coat proteins                                                                                                                                                   SCOP domains
               CATH domains 1qqp  200 2:1-218  [code=2.60.120.20, no name defined]                                                                                                                                                                     CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....--....hhh.eeeee..eeeee......eee..........hhh.......hhh..eeeeeeeee........eeeeee......hhhhhhhh..eee.eeeeeeee........eeeeeeee.......hhhhhhhh.eeeee......eeeeee................eeeeeeeee...........eeeeeeeeee..eee....... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qqp 2   1 DKKT--TTLLEDRILTTRNGHTTSTTQSSVGVTYGYATAEDFVSGPNTSGLETRVVQAERFFKTHLFDWVTSDSFGRCHLLELPTDHKGVYGSLTDSYAYMRNGWDVEVTAVGNQFNGGCLLVAMVPELCSIQKRELYQLTLFPHQFINPRTNMTAHITVPFVGVNRYDQYKVHKPWTLVVMVVAPLTVNTEGAPQIKVYANIAPTNVHVAGEFPSKE 218
                               |  | 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210        
                               4  7                                                                                                                                                                                                                   

Chain 3 from PDB  Type:PROTEIN  Length:220
 aligned with POLG_FMDVO | P03305 from UniProtKB/Swiss-Prot  Length:2332

    Alignment length:220
                                   514       524       534       544       554       564       574       584       594       604       614       624       634       644       654       664       674       684       694       704       714       724
           POLG_FMDVO   505 GIFPVACSDGYGGLVTTDPKTADPVYGKVFNPPRNQLPGRFTNLLDVAEACPTFLRFEGGVPYVTTKTDSDRVLAQFDMSLAAKQMSNTFLAGLAQYYTQYSGTINLHFMFTGPTDAKARYMVAYAPPGMEPPKTPEAAAHCIHAEWDTGLNSKFTFSIPYLSAADYAYTASGVAETTNVQGWVCLFQITHGKADGDALVVLASAGKDFELRLPVDARAE 724
               SCOP domains d1qqp3_ 3: Aphthovirus (Foot-and-mouth disease virus) coat proteins                                                                                                                                                          SCOP domains
               CATH domains 1qqp300 3:1-220  [code=2.60.120.20, no name defined]                                                                                                                                                                         CATH domains
           Pfam domains (1) ---------------------Rhv-1qqp301 3:22-189                                                                                                                                                    ------------------------------- Pfam domains (1)
           Pfam domains (2) ---------------------Rhv-1qqp302 3:22-189                                                                                                                                                    ------------------------------- Pfam domains (2)
           Pfam domains (3) ---------------------Rhv-1qqp303 3:22-189                                                                                                                                                    ------------------------------- Pfam domains (3)
         Sec.struct. author ...........................................hhhhhhh............eee.......eeeeee.....hhh...hhhhhhhh..eee..eeeeeee......eeeeeeeee.........hhhhhh.eeeeee.....eeeeee.......................eeeeeeeeee.....eeeeeeee....eee........ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qqp 3   1 GIFPVACSDGYGGLVTTDPKTADPVYGKVFNPPRNQLPGRFTNLLDVAEACPTFLRFEGGVPYVTTKTDSDRVLAQFDMSLAAKHMSNTFLAGLAQYYTQYSGTINLHFMFTGPTDAKARYMVAYAPPGMEPPKTPEAAAHCIHAEWDTGLNSKFTFSIPYLSAADYTYTASDVAETTNVQGWVCLFQITHGKADGDALVVLASAGKDFELRLPVDARAE 220
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain 4 from PDB  Type:PROTEIN  Length:46
 aligned with POLG_FMDVO | P03305 from UniProtKB/Swiss-Prot  Length:2332

    Alignment length:71
                                   225       235       245       255       265       275       285 
           POLG_FMDVO   216 SGNTGSIINNYYMQQYQNSMDTQLGDNAISGGSNEGSTDTTSTHTTNTQNNDWFSKLASSAFSGLFGALLA 286
               SCOP domains d1qqp.1 4:,2: Aphthovirus                          (Foot-and-mouth dise SCOP domains
               CATH domains 1qqp400 4:15-85 Foot-And-                         Mouth Disease Virus,  CATH domains
               Pfam domains VP4_2-1qqp401 4:15-85                                                   Pfam domains
         Sec.struct. author .............hhhh........-------------------------..hhhhhhh............ Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------- Transcript
                 1qqp 4  15 SGNTGSIINNYYMQQYQNSMDTQLG-------------------------NDWFSKLASSAFSGLFGALLA  85
                                    24        34    |    -         -         -|       74        84 
                                                   39                        65                    

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 3)

Asymmetric Unit

(-) CATH Domains  (2, 4)

Asymmetric Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (2, 4)

Asymmetric Unit

(-) Gene Ontology  (47, 55)

Asymmetric Unit(hide GO term definitions)
Chain 1,2,3,4   (POLG_FMDVO | P03305)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0003723    RNA binding    Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
    GO:0003724    RNA helicase activity    Catalysis of the reaction: NTP + H2O = NDP + phosphate, to drive the unwinding of a RNA helix.
    GO:0003968    RNA-directed 5'-3' RNA polymerase activity    Catalysis of the reaction: nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1); uses an RNA template, i.e. the catalysis of RNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time.
    GO:0004197    cysteine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0008234    cysteine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0004386    helicase activity    Catalysis of the reaction: NTP + H2O = NDP + phosphate, to drive the unwinding of a DNA or RNA helix.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0005216    ion channel activity    Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
    GO:0017111    nucleoside-triphosphatase activity    Catalysis of the reaction: a nucleoside triphosphate + H2O = nucleoside diphosphate + phosphate.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0016779    nucleotidyltransferase activity    Catalysis of the transfer of a nucleotidyl group to a reactant.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0005198    structural molecule activity    The action of a molecule that contributes to the structural integrity of a complex or its assembly within or outside a cell.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
    GO:0018144    RNA-protein covalent cross-linking    The formation of a covalent cross-link between RNA and a protein.
    GO:0075512    clathrin-dependent endocytosis of virus by host cell    Any clathrin-mediated endocytosis that is involved in the uptake of a virus into a host cell. Begins by invagination of a specific region of the host cell plasma membrane around the bound virus to form a clathrin-coated pit, which then pinches off to form a clathrin-coated endocytic vesicle containing the virus.
    GO:0075509    endocytosis involved in viral entry into host cell    Any endocytosis that is involved in the uptake of a virus into a host cell.
    GO:0039520    induction by virus of host autophagy    Any process in which a virus activates or increases the frequency, rate or extent of autophagy in the host.
    GO:0034220    ion transmembrane transport    A process in which an ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0039525    modulation by virus of host chromatin organization    Any process in which a virus effects a change in the organization of chromatin in the host.
    GO:0039707    pore formation by virus in membrane of host cell    The aggregation, arrangement and bonding together of a set of components by a virus to form a pore complex in a membrane of a host organism.
    GO:0039690    positive stranded viral RNA replication    A viral genome replication process where the template genome is positive stranded, single stranded RNA ((+)ssRNA). Replication of the positive strand leads to dsRNA formation, which in turn is transcribed into positive single stranded RNA.
    GO:0051259    protein oligomerization    The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers; protein oligomers may be composed of different or identical monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    GO:0019065    receptor-mediated endocytosis of virus by host cell    Any receptor-mediated endocytosis that is involved in the uptake of a virus into a host cell; successive instances of virus endocytosis result in the accumulation of virus particles within the cell.
    GO:0006417    regulation of translation    Any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of proteins by the translation of mRNA or circRNA.
    GO:0039544    suppression by virus of host RIG-I activity by RIG-I proteolysis    The chemical reactions and pathways performed by a virus resulting in the hydrolysis of the host RIG-I protein (also known as DDX58) by cleavage of peptide bonds, thereby inhibiting RIG-I signal transduction.
    GO:0039611    suppression by virus of host translation initiation factor activity    Any process in which a virus prevents or reduces the frequency, rate or extent of activity of a host translation initiation factor.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.
    GO:0001172    transcription, RNA-templated    The cellular synthesis of RNA on a template of RNA.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
    GO:0039694    viral RNA genome replication    The replication of a viral RNA genome.
    GO:0046718    viral entry into host cell    The process that occurs after viral attachment by which a virus, or viral nucleic acid, breaches the plasma membrane or cell envelope and enters the host cell. The process ends when the viral nucleic acid is released into the host cell cytoplasm.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
    GO:0019082    viral protein processing    Any protein maturation process achieved by the cleavage of a peptide bond or bonds within a viral protein.
    GO:0019062    virion attachment to host cell    The process by which a virion protein binds to molecules on the host cellular surface or host cell surface projection.
cellular component
    GO:0030430    host cell cytoplasm    The cytoplasm of a host cell.
    GO:0044161    host cell cytoplasmic vesicle    A vesicle formed of membrane or protein, found in the cytoplasm of a host cell.
    GO:0044162    host cell cytoplasmic vesicle membrane    The lipid bilayer surrounding a host cell cytoplasmic vesicle.
    GO:0033644    host cell membrane    Double layer of lipid molecules as it encloses host cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0019030    icosahedral viral capsid    The protein coat that surrounds the infective nucleic acid in some virus particles; the subunits are arranged to form an icosahedron, a solid with 20 faces and 12 vertices. Icosahedral capsids have 12 pentamers plus 10(T-1) hexamers, where T is the triangulation number. Tobacco satellite necrosis virus has such a capsid structure.
    GO:0044385    integral to membrane of host cell    Penetrating at least one phospholipid bilayer of a membrane. May also refer to the state of being buried in the bilayer with no exposure outside the bilayer. When used to describe a protein, indicates that all or part of the peptide sequence is embedded in the membrane. Occurring in a host cell.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0019028    viral capsid    The protein coat that surrounds the infective nucleic acid in some virus particles. It comprises numerous regularly arranged subunits, or capsomeres.
    GO:0019012    virion    The complete fully infectious extracellular virus particle.

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        POLG_FMDVO | P033051qmy 1qol 2jqf 2jqg 4qbb

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