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(-) Description

Title :  CRYSTAL STRUCTURE OF THE WEST NILE VIRUS NS2B-NS3 PROTEASE COMPLEXED WITH BOVINE PANCREATIC TRYPSIN INHIBITOR
 
Authors :  A. E. Aleshin, S. A. Shiryaev, A. Y. Strongin, R. C. Liddington
Date :  29 Sep 06  (Deposition) - 15 May 07  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym./Biol. Unit :  A,B,I
Keywords :  West Nile Virus, Protease, Aprotinin, Bpti, Ns2B, Ns3, Flavivirus, Serine Protease, Hydrolase/Hydrolase Inhibitor Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. E. Aleshin, S. A. Shiryaev, A. Y. Strongin, R. C. Liddington
Structural Evidence For Regulation And Specificity Of Flaviviral Proteases And Evolution Of The Flaviviridae Fold.
Protein Sci. V. 16 795 2007
PubMed-ID: 17400917  |  Reference-DOI: 10.1110/PS.072753207
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - POLYPROTEIN
    ChainsA
    EC Number3.4.21.91
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET101
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentNS2B COFACTOR DOMAIN
    Organism ScientificWEST NILE VIRUS
    Organism Taxid11082
    SynonymNON-STRUCTURAL PROTEIN 2B, NS2B
 
Molecule 2 - POLYPROTEIN
    ChainsB
    EC Number3.4.21.91
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET101
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentNS3 PROTEASE DOMAIN
    MutationYES
    Organism ScientificWEST NILE VIRUS
    Organism Taxid11082
    SynonymNON-STRUCTURAL PROTEIN 3, NS3
 
Molecule 3 - PANCREATIC TRYPSIN INHIBITOR
    ChainsI
    Organism CommonCATTLE
    Organism ScientificBOS TAURUS
    Organism Taxid9913
    SynonymBASIC PROTEASE INHIBITOR, BPI, BPTI, APROTININ

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit ABI

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 2IJO)

(-) Sites  (0, 0)

(no "Site" information available for 2IJO)

(-) SS Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1I:5 -I:55
2I:14 -I:38
3I:30 -I:51

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2IJO)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2IJO)

(-) PROSITE Motifs  (3, 3)

Asymmetric/Biological Unit (3, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1BPTI_KUNITZ_2PS50279 Pancreatic trypsin inhibitor (Kunitz) family profile.BPT1_BOVIN40-90  1I:5-55
2BPTI_KUNITZ_1PS00280 Pancreatic trypsin inhibitor (Kunitz) family signature.BPT1_BOVIN68-86  1I:33-51
3FLAVIVIRUS_NS3PROPS51528 Flavivirus NS3 protease (NS3pro) domain profile.POLG_WNV1502-1679  1B:1-176

(-) Exons   (0, 0)

(no "Exon" information available for 2IJO)

(-) 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:41
 aligned with POLG_WNV | P06935 from UniProtKB/Swiss-Prot  Length:3430

    Alignment length:41
                                  1428      1438      1448      1458 
            POLG_WNV   1419 STDMWIERTADITWESDAEITGSSERVDVRLDDDGNFQLMN 1459
               SCOP domains ----------------------------------------- SCOP domains
               CATH domains ----------------------------------------- CATH domains
               Pfam domains ----------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeee........ee.....eeeeee.....eee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------- PROSITE
                 Transcript ----------------------------------------- Transcript
                2ijo A   49 STDMWIERTADISWESDAEITGSSERVDVRLDDDGNFQLMN   89
                                    58        68        78        88 

Chain A from PDB  Type:PROTEIN  Length:41
 aligned with Q203W3_WNV | Q203W3 from UniProtKB/TrEMBL  Length:3433

    Alignment length:41
                                  1432      1442      1452      1462 
          Q203W3_WNV   1423 STDMWIERTADISWESDAEITGSSERVDVRLDDDGNFQLMN 1463
               SCOP domains ----------------------------------------- SCOP domains
               CATH domains ----------------------------------------- CATH domains
               Pfam domains ----------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeee........ee.....eeeeee.....eee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------- PROSITE
                 Transcript ----------------------------------------- Transcript
                2ijo A   49 STDMWIERTADISWESDAEITGSSERVDVRLDDDGNFQLMN   89
                                    58        68        78        88 

Chain B from PDB  Type:PROTEIN  Length:168
 aligned with POLG_WNV | P06935 from UniProtKB/Swiss-Prot  Length:3430

    Alignment length:176
                                  1511      1521      1531      1541      1551      1561      1571      1581      1591      1601      1611      1621      1631      1641      1651      1661      1671      
            POLG_WNV   1502 GGVLWDTPSPKEYKKGDTTTGVYRIMTRGLLGSYQAGAGVMVEGVFHTLWHTTKGAALMSGEGRLDPYWGSVKEDRLCYGGPWKLQHKWNGHDEVQMIVVEPGKNVKNVQTKPGVFKTPEGEIGAVTLDYPTGTSGSPIVDKNGDVIGLYGNGVIMPNGSYISAIVQGERMEEPAP 1677
               SCOP domains ----d        2ijob1 B:5-176 NS3 protease                                                                                                                                         SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..ee.--------.......eeeeeeeee..eeeeeeeeeee..eeeehhhhhh...eee..eee.eeeee....eeee...............eeeee.......eeeee..eeee....eeeee...........eee.....eeee...eee.....eeee............ Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE FLAVIVIRUS_NS3PRO  PDB: B:1-176 UniProt: 1502-1679                                                                                                                               PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2ijo B    1 GGVLW--------KKGDTTTGVYRIMTRGLLGSYQAGAGVMVEGVFHTLWHTTKGAALMSGEGRLDPYWGSVKEDRLCYGGPWQLQHKWNGQDEVQMIVVEPGRNVKNVQTKPGVFKTPEGEIGAVTLDFPTGTSGSPIVDKNGDVIGLYGNGVIMPNGSYISAIVQGERMDEPIP  176
                                |    -   |    20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170      
                                5       14                                                                                                                                                                  

Chain B from PDB  Type:PROTEIN  Length:168
 aligned with Q203W3_WNV | Q203W3 from UniProtKB/TrEMBL  Length:3433

    Alignment length:176
                                  1515      1525      1535      1545      1555      1565      1575      1585      1595      1605      1615      1625      1635      1645      1655      1665      1675      
          Q203W3_WNV   1506 GGVLWDTPSPKEYKKGDTTTGVYRIMTRGLLGSYQAGAGVMVEGVFHTLWHTTKGAALMSGEGRLDPYWGSVKEDRLCYGGPWKLQHKWNGQDEVQMIVVEPGKNVKNVQTKPGVFKTPEGEIGAVTLDFPTGTSGSPIVDKNGDVIGLYGNGVIMPNGSYISAIVQGERMDEPIP 1681
               SCOP domains ----d        2ijob1 B:5-176 NS3 protease                                                                                                                                         SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..ee.--------.......eeeeeeeee..eeeeeeeeeee..eeeehhhhhh...eee..eee.eeeee....eeee...............eeeee.......eeeee..eeee....eeeee...........eee.....eeee...eee.....eeee............ Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2ijo B    1 GGVLW--------KKGDTTTGVYRIMTRGLLGSYQAGAGVMVEGVFHTLWHTTKGAALMSGEGRLDPYWGSVKEDRLCYGGPWQLQHKWNGQDEVQMIVVEPGRNVKNVQTKPGVFKTPEGEIGAVTLDFPTGTSGSPIVDKNGDVIGLYGNGVIMPNGSYISAIVQGERMDEPIP  176
                                |    -   |    20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170      
                                5       14                                                                                                                                                                  

Chain I from PDB  Type:PROTEIN  Length:56
 aligned with BPT1_BOVIN | P00974 from UniProtKB/Swiss-Prot  Length:100

    Alignment length:56
                                    45        55        65        75        85      
          BPT1_BOVIN     36 RPDFCLEPPYTGPCKARIIRYFYNAKAGLCQTFVYGGCRAKRNNFKSAEDCMRTCG   91
               SCOP domains d2ijoi_ I: Pancreatic trypsin inhibitor, BPTI            SCOP domains
               CATH domains 2ijoI00 I:1-56 Factor Xa Inhibitor                       CATH domains
               Pfam domains -------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhh..........eeeeee.hhhh.eeeeee...........hhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----BPTI_KUNITZ_2  PDB: I:5-55 UniProt: 40-90          - PROSITE (1)
                PROSITE (2) --------------------------------BPTI_KUNITZ_1      ----- PROSITE (2)
                 Transcript -------------------------------------------------------- Transcript
                2ijo I    1 RPDFCLEPPYTGPCKARIIRYFYNAKAGLCQTFVYGGCRAKRNNFKSAEDCMRTCG   56
                                    10        20        30        40        50      

   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  (2, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2IJO)

(-) Gene Ontology  (73, 120)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (POLG_WNV | P06935)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0008026    ATP-dependent helicase activity    Catalysis of the reaction: ATP + H2O = ADP + phosphate, to drive the unwinding of a DNA or RNA helix.
    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:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0003725    double-stranded RNA binding    Interacting selectively and non-covalently with double-stranded RNA.
    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:0016817    hydrolase activity, acting on acid anhydrides    Catalysis of the hydrolysis of any acid anhydride.
    GO:0004482    mRNA (guanine-N7-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + G(5')pppR-RNA = S-adenosyl-L-homocysteine + m7G(5')pppR-RNA. m7G(5')pppR-RNA is mRNA containing an N7-methylguanine cap; R may be guanosine or adenosine.
    GO:0004483    mRNA (nucleoside-2'-O-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + m7G(5')pppR-RNA = S-adenosyl-L-homocysteine + m7G(5')pppRm-RNA. R may be guanosine or adenosine.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    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:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    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:0070008    serine-type exopeptidase activity    Catalysis of the hydrolysis of a peptide bond not more than three residues from the N- or C-terminus of 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: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:0006370    7-methylguanosine mRNA capping    Addition of the 7-methylguanosine cap to the 5' end of a nascent messenger RNA transcript.
    GO:0036265    RNA (guanine-N7)-methylation    The addition of a methyl group to the N7 atom in the base portion of a guanine nucleotide residue in an RNA molecule.
    GO:0016070    RNA metabolic process    The cellular chemical reactions and pathways involving RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage.
    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:0030683    evasion or tolerance by virus of host immune response    Any process, either active or passive, by which a virus avoids the effects of the host organism's immune response. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    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: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:0080009    mRNA methylation    The posttranscriptional addition of methyl groups to specific residues in an mRNA molecule.
    GO:0006397    mRNA processing    Any process involved in the conversion of a primary mRNA transcript into one or more mature mRNA(s) prior to translation into polypeptide.
    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:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    GO:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
    GO:0045070    positive regulation of viral genome replication    Any process that activates or increases the frequency, rate or extent of viral genome replication.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0039576    suppression by virus of host JAK1 activity    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host JAK1 (Janus Kinase 1) activity. In the host, binding of a ligand to a receptor triggers activation of JAK proteins, which phosphorylate tyrosine residues on the receptor creating sites for STAT proteins to bind, which are in turn phosphorylated and activated by JAK proteins. By blocking JAK1 activity, many viruses block the host signal transduction pathway.
    GO:0039574    suppression by virus of host TYK2 activity    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host TYK2 (tyrosine kinase 2) activity. TYK2 is an intracellular signal-transducing tyrosine kinase that associates with the cytoplasmic tails of cytokine receptors and transmits the cytokine signal by phosphorylating receptor subunits.
    GO:0019050    suppression by virus of host apoptotic process    Any viral process that inhibits apoptosis of infected host cells, facilitating prolonged cell survival during viral replication.
    GO:0039503    suppression by virus of host innate immune response    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of the innate immune response of the host organism, the host's first line of defense.
    GO:0039502    suppression by virus of host type I interferon-mediated signaling pathway    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of type I interferon-mediated signaling in the host organism. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
    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: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:0019079    viral genome replication    Any process involved directly in viral genome replication, including viral nucleotide metabolism.
    GO:0019058    viral life cycle    A set of processes which all viruses follow to ensure survival; includes attachment and entry of the virus particle, decoding of genome information, translation of viral mRNA by host ribosomes, genome replication, and assembly and release of viral particles containing the genome.
    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:0039714    cytoplasmic viral factory    A viral factory located in the cytoplasm of a host cell.
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0044165    host cell endoplasmic reticulum    The irregular network of unit membranes, visible only by electron microscopy, that occurs in the host cell cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The host ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
    GO:0044167    host cell endoplasmic reticulum membrane    The lipid bilayer surrounding the host cell endoplasmic reticulum.
    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:0042025    host cell nucleus    A membrane-bounded organelle as it is found in the host cell in which chromosomes are housed and replicated. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    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.

Chain A,B   (Q203W3_WNV | Q203W3)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0008026    ATP-dependent helicase activity    Catalysis of the reaction: ATP + H2O = ADP + phosphate, to drive the unwinding of a DNA or RNA helix.
    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:0003725    double-stranded RNA binding    Interacting selectively and non-covalently with double-stranded RNA.
    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:0016817    hydrolase activity, acting on acid anhydrides    Catalysis of the hydrolysis of any acid anhydride.
    GO:0004482    mRNA (guanine-N7-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + G(5')pppR-RNA = S-adenosyl-L-homocysteine + m7G(5')pppR-RNA. m7G(5')pppR-RNA is mRNA containing an N7-methylguanine cap; R may be guanosine or adenosine.
    GO:0004483    mRNA (nucleoside-2'-O-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + m7G(5')pppR-RNA = S-adenosyl-L-homocysteine + m7G(5')pppRm-RNA. R may be guanosine or adenosine.
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    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: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:0070008    serine-type exopeptidase activity    Catalysis of the hydrolysis of a peptide bond not more than three residues from the N- or C-terminus of 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: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:0006370    7-methylguanosine mRNA capping    Addition of the 7-methylguanosine cap to the 5' end of a nascent messenger RNA transcript.
    GO:0036265    RNA (guanine-N7)-methylation    The addition of a methyl group to the N7 atom in the base portion of a guanine nucleotide residue in an RNA molecule.
    GO:0016070    RNA metabolic process    The cellular chemical reactions and pathways involving RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage.
    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: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:0080009    mRNA methylation    The posttranscriptional addition of methyl groups to specific residues in an mRNA molecule.
    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:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    GO:0001172    transcription, RNA-templated    The cellular synthesis of RNA on a template of RNA.
    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:0019079    viral genome replication    Any process involved directly in viral genome replication, including viral nucleotide metabolism.
    GO:0019058    viral life cycle    A set of processes which all viruses follow to ensure survival; includes attachment and entry of the virus particle, decoding of genome information, translation of viral mRNA by host ribosomes, genome replication, and assembly and release of viral particles containing the genome.
    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: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: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.

Chain I   (BPT1_BOVIN | P00974)
molecular function
    GO:0030414    peptidase inhibitor activity    Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
    GO:0019870    potassium channel inhibitor activity    Stops, prevents, or reduces the activity of a potassium channel.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0004867    serine-type endopeptidase inhibitor activity    Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
biological process
    GO:0010951    negative regulation of endopeptidase activity    Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
    GO:0010466    negative regulation of peptidase activity    Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.
    GO:0090331    negative regulation of platelet aggregation    Any process that decreases the rate, frequency or extent of platelet aggregation. Platelet aggregation is the adhesion of one platelet to one or more other platelets via adhesion molecules.
    GO:0070495    negative regulation of thrombin-activated receptor signaling pathway    Any process that stops, prevents, or reduces the frequency, rate or extent of thrombin-activated receptor protein signaling pathway activity. A thrombin receptor signaling pathway is the series of molecular signals generated as a consequence of a thrombin-activated receptor binding to one of its physiological ligands.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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 Related Entries

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

UniProtKB/Swiss-Prot
        BPT1_BOVIN | P009741aal 1b0c 1bhc 1bpi 1bpt 1brb 1bth 1bti 1bz5 1bzx 1cbw 1co7 1d0d 1eaw 1ejm 1f5r 1f7z 1fak 1fan 1fy8 1g6x 1jv8 1jv9 1k09 1k6u 1ld5 1ld6 1mtn 1nag 1oa5 1oa6 1p2i 1p2j 1p2k 1p2m 1p2n 1p2o 1p2q 1pit 1qlq 1t7c 1t8l 1t8m 1t8n 1t8o 1tpa 1uua 1uub 1ykt 1ylc 1yld 2fi3 2fi4 2fi5 2ftl 2ftm 2hex 2kai 2ptc 2r9p 2ra3 2tgp 2tpi 2zjx 2zvx 3btd 3bte 3btf 3btg 3bth 3btk 3btm 3btq 3btt 3btw 3fp6 3fp7 3fp8 3gym 3ldi 3ldj 3ldm 3otj 3p92 3p95 3tgi 3tgj 3tgk 3tpi 3u1j 3wny 4bnr 4dg4 4pti 4tpi 4wwy 4wxv 4y0y 4y0z 4y10 4y11 5jb4 5jb5 5jb6 5jb7 5pti 6pti 7pti 8pti 9pti
        POLG_WNV | P069352fp7 2g05 2g2g 2ggv 2p5p 2yol 3e90 3i50 5idk
        Q203W3_WNV | Q203W32ggv

(-) Related Entries Specified in the PDB File

2fom CRYSTAL STRUCTURE OF DENGUE VIRUS NS2B/NS3 PROTEASE
2fp7 CRYSTAL STRUCTURE OF WEST NILE VIRUS NS2B/NS3 PROTEASE IN COMPLEX WITH BZ-NLE-LYS-ARG-ARG-H
2ggv CRYSTAL STRUCTURE OF THE WEST NILE VIRUS NS2B-NS3 PROTEASE, HIS51ALA MUTANT