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(-) Description

Title :  SINDBIS VIRUS CAPSID (Y180S, E183G DOUBLE MUTANT), TETRAGONAL CRYSTAL FORM
 
Authors :  H. -K. Choi, M. G. Rossmann
Date :  05 May 96  (Deposition) - 08 Nov 96  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.20
Chains :  Asym./Biol. Unit :  A
Keywords :  Sindbis Virus Capsid Protein, Chymotrypsin-Like Serine Proteinase, Wild Type, Coat Protein, Viral Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  H. K. Choi, S. Lee, Y. P. Zhang, B. R. Mckinney, G. Wengler, M. G. Rossmann, R. J. Kuhn
Structural Analysis Of Sindbis Virus Capsid Mutants Involving Assembly And Catalysis.
J. Mol. Biol. V. 262 151 1996
PubMed-ID: 8831786  |  Reference-DOI: 10.1006/JMBI.1996.0505
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SINDBIS VIRUS CAPSID PROTEIN
    ChainsA
    EC Number3.4.21.-
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System GeneSINDBIS VIRUS CAPSID PROTEIN
    Expression System PlasmidPET11A
    Expression System Taxid562
    Expression System Vector TypeT7
    FragmentMET 106 - ALA 264 OF THE NATIVE SINDBIS CAPSID
    GeneSINDBIS VIRUS CAPSID PROTEIN
    MutationYES
    Organism ScientificSINDBIS VIRUS
    Organism Taxid11034
    Other DetailsT7 RNA POLYMERASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1KXE)

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1TRIUNKNOWNSER A:215 , HIS A:141 , ASP A:163SINDBIS CAPSID PROTEIN HAS THE CATALYTIC TRIAD OF THE SERINE PROTEINASE. THE RESIDUES ARE SER 215, HIS 141, AND ASP 163.

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1KXE)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1KXE)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1KXE)

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ALPHAVIRUS_CPPS51690 Alphavirus core protein (CP) domain profile.POLS_SINDV114-264  1A:114-264

(-) Exons   (0, 0)

(no "Exon" information available for 1KXE)

(-) Sequences/Alignments

Asymmetric/Biological 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 A from PDB  Type:PROTEIN  Length:157
 aligned with POLS_SINDV | P03316 from UniProtKB/Swiss-Prot  Length:1245

    Alignment length:157
                                   117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       
           POLS_SINDV   108 LKLEADRLFDVKNEDGDVIGHALAMEGKVMKPLHVKGTIDHPVLSKLKFTKSSAYDMEFAQLPVNMRSEAFTYTSEHPEGFYNWHHGAVQYSGGRFTIPRGVGGRGDSGRPIMDNSGRVVAIVLGGADEGTRTALSVVTWNSKGKTIKTTPEGTEEW 264
               SCOP domains d1kxea_ A: Viral capsid protein                                                                                                                               SCOP domains
               CATH domains ------1kxeA01 A:114-178 Trypsin-like serine proteases                  1kxeA02 A:179-264 Trypsin-like serine proteases                                        CATH domains
               Pfam domains Peptidase_S3-1kxeA01 A:108-264                                                                                                                                Pfam domains
         Sec.struct. author .......eeeee.....eeeeeeee..eeeee.....ee....hhh...eee....eeeee..................eeeee..eeeeee..eeeee...........eee.....eeeeeeeeeee..eeeeeeeee.....eeee.....ee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------ALPHAVIRUS_CP  PDB: A:114-264 UniProt: 114-264                                                                                                          PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kxe A 108 LKLEADRLFDVKNEDGDVIGHALAMEGKVMKPLHVKGTIDHPVLSKLKFTKSSAYDMEFAQLPVNMRSEAFTSTSGHPEGFYNWHHGAVQYSGGRFTIPRGVGGRGDSGRPIMDNSGRVVAIVLGGADEGTRTALSVVTWNSKGKTIKTTPEGTEEW 264
                                   117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       

   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, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit

(-) Gene Ontology  (27, 27)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (POLS_SINDV | P03316)
molecular function
    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: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:0046983    protein dimerization activity    The formation of a protein dimer, a macromolecular structure consists of two noncovalently associated identical or nonidentical subunits.
    GO:0004252    serine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
    GO:0008236    serine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
    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:0044389    ubiquitin-like protein ligase binding    Interacting selectively and non-covalently with a ubiquitin-like protein ligase, such as ubiquitin-ligase.
biological process
    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:0039654    fusion of virus membrane with host endosome membrane    Fusion of a virus membrane with a host endosome membrane. Occurs after internalization of the virus through the endosomal pathway, and results in release of the virus contents into the cell.
    GO:0061025    membrane fusion    The membrane organization process that joins two lipid bilayers to form a single membrane.
    GO:0039663    membrane fusion involved in viral entry into host cell    Merging of the virion membrane and a host membrane (host plasma membrane or host organelle membrane) that is involved in the uptake of a virus into a host cell.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    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: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:0039619    T=4 icosahedral viral capsid    The protein coat that surrounds the infective nucleic acid in some virus particles where the subunits (capsomeres) are arranged to form an icosahedron with T=4 symmetry. The T=4 capsid is composed of 12 pentameric and 30 hexameric capsomeres.
    GO:0030430    host cell cytoplasm    The cytoplasm of a host cell.
    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:0020002    host cell plasma membrane    The plasma membrane surrounding a host cell.
    GO:0098029    icosahedral viral capsid, spike    A short structure attached to an icosahedral virion capsid, and used for attachment to the host cell.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    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:0019031    viral envelope    The lipid bilayer of a virion that surrounds the protein capsid. May also contain glycoproteins.
    GO:0019012    virion    The complete fully infectious extracellular virus particle.
    GO:0055036    virion membrane    The lipid bilayer surrounding a virion.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        POLS_SINDV | P033161kxa 1kxb 1kxc 1kxd 1kxf 1ld4 1svp 1z8y 2snv 2snw 3j0f 3muu 3muw

(-) Related Entries Specified in the PDB File

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