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(-) Description

Title :  ISOTHIAZOLES AS ACTIVE-SITE INHIBITORS OF HCV NS5B POLYMERASE
 
Authors :  S. Yan, N. Yao
Date :  29 Sep 06  (Deposition) - 28 Nov 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Hcv; Ns5B; Viral Rna Directed Rna Polymerase; Rdrp; Active Site; Covalent Inhibitor, Transcription, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  S. Yan, T. Appleby, E. Gunic, J. H. Shim, T. Tasu, H. Kim, F. Rong, H. Chen, R. Hamatake, J. Z. Wu, Z. Hong, N. Yao
Isothiazoles As Active-Site Inhibitors Of Hcv Ns5B Polymerase
Bioorg. Med. Chem. Lett. V. 17 28 2007
PubMed-ID: 17049853  |  Reference-DOI: 10.1016/J.BMCL.2006.10.002
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - RNA POLYMERASE NS5B
    ChainsA, B
    EC Number2.7.7.48
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentRESIDUES 2422-2989 OF HCV POLYPROTEIN
    Organism ScientificHEPATITIS C VIRUS SUBTYPE 1B
    Organism Taxid31647
    Other DetailsCYCLIC PRECURSOR OF INHIBITOR 221 FORMS AN S-S BRIGDE TO CYS 366 UPON BINDING
    StrainSUBTYPE 1B

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric Unit (1, 2)
No.NameCountTypeFull Name
12212Ligand/Ion(2R,3R)-3-{[3,5-BIS(TRIFLUOROMETHYL)PHENYL]AMINO}-2-CYANO-3-THIOXOPROPANAMIDE
Biological Unit 1 (1, 1)
No.NameCountTypeFull Name
12211Ligand/Ion(2R,3R)-3-{[3,5-BIS(TRIFLUOROMETHYL)PHENYL]AMINO}-2-CYANO-3-THIOXOPROPANAMIDE
Biological Unit 2 (1, 1)
No.NameCountTypeFull Name
12211Ligand/Ion(2R,3R)-3-{[3,5-BIS(TRIFLUOROMETHYL)PHENYL]AMINO}-2-CYANO-3-THIOXOPROPANAMIDE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPHE A:193 , ARG A:200 , ASN A:316 , ASP A:318 , ASP A:319 , CYS A:366 , SER A:368 , LEU A:384 , ARG A:386 , MET A:414 , TYR A:415 , TYR A:448 , SER A:556 , HOH A:9439 , HOH A:9499BINDING SITE FOR RESIDUE 221 A 9366
2AC2SOFTWAREPHE B:193 , ARG B:200 , ASN B:316 , ASP B:318 , ASP B:319 , CYS B:366 , SER B:367 , LEU B:384 , ARG B:386 , MET B:414 , TYR B:415 , TYR B:448 , SER B:556 , HOH B:9425 , HOH B:9434BINDING SITE FOR RESIDUE 221 B 9366

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2IJN)

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2IJN)

(-) Exons   (0, 0)

(no "Exon" information available for 2IJN)

(-) 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 A from PDB  Type:PROTEIN  Length:559
 aligned with Q99AU2_9HEPC | Q99AU2 from UniProtKB/TrEMBL  Length:3010

    Alignment length:564
                                  2429      2439      2449      2459      2469      2479      2489      2499      2509      2519      2529      2539      2549      2559      2569      2579      2589      2599      2609      2619      2629      2639      2649      2659      2669      2679      2689      2699      2709      2719      2729      2739      2749      2759      2769      2779      2789      2799      2809      2819      2829      2839      2849      2859      2869      2879      2889      2899      2909      2919      2929      2939      2949      2959      2969      2979    
        Q99AU2_9HEPC   2420 SMSYTWTGALITPCAAEESKLPINALSNSLLRHHNMVYATTSRSAGLRQKKVTFDRLQVLDDHYRDVLKEMKAKASTVKAKLLSVEEACKLTPPHSAKSKFGYGAKDVRNLSSKAVNHIHSVWKDLLEDTVTPIDTTIMAKNEVFCVQPEKGGRKPARLIVFPDLGVRVCEKMALYDVVSTLPQVVMGSSYGFQYSPGQRVEFLVNTWKSKKNPMGFSYDTRCFDSTVTENDIRVEESIYQCCDLAPEARQAIKSLTERLYIGGPLTNSKGQNCGYRRCRASGVLTTSCGNTLTCYLKASAACRAAKLQDCTMLVNGDDLVVICESAGTQEDAASLRVFTEAMTRYSAPPGDPPQPEYDLELITSCSSNVSVAHDASGKRVYYLTRDPTTPLARAAWETARHTPVNSWLGNIIMYAPTLWARMILMTHFFSILLAQEQLEKALDCQIYGACYSIEPLDLPQIIERLHGLSAFSLHSYSPGEINRVASCLRKLGVPPLRVWRHRARSVRARLLSQGGRAATCGKYLFNWAVKTKLKLTPIPAASQLDLSGWFVAGYSGGDIYHSL 2983
               SCOP domains d2ijna_ A: automated matches                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...eee...................hhhhhh.hhh.eee.hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhh.......hhhhhhhh............hhhhhhh.hhhhhhhhhhhhhhhhhh......eeeee...eee..-----.....eeee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eeeeee...hhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhh...eeee.....eeeee........hhhhhhhhhhhhhhhhhhhhhh....eeeee..eeeeeee.hhhhhhhhhhhhhhhhhhhh............hhhhh....eeeeeee.....eeeeeee.hhhhhhhhhhhhhh....hhhhhhhhhhh.hhhhhhhhhhhhhhhhhhh......eeeee..eeeeehhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh............hhhhhhh...............ee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                2ijn A    1 HHSYTWTGALITPCAAEESKLPINALSNSLLRHHNMVYATTSRSAGLRQKKVTFDRLQVLDDHYRDVLKEMKAKASTVKAKLLSVEEACKLTPPHSAKSKFGYGAKDVRNLSSKAVNHIHSVWKDLLEDTVTPIDTTIMAKNEVFCVQ-----RKPARLIVFPDLGVRVCEKMALYDVVSTLPQVVMGSSYGFQYSPGQRVEFLVNTWKSKKNPMGFSYDTRCFDSTVTENDIRVEESIYQCCDLAPEARQAIKSLTERLYIGGPLTNSKGQNCGYRRCRASGVLTTSCGNTLTCYLKASAACRAAKLQDCTMLVNGDDLVVICESAGVQEDAASLRAFTEAMTRYSAPPGDPPQPEYDLELITSCSSNVSVAHDASGKRVYYLTRDPTTPLARAAWETARHTPVNSWLGNIIMYAPTLWARMILMTHFFSILLAQEQLEKALDCQIYGACYSIEPLDLPQIIERLHGLSAFSLHSYSPGEINRVASCLRKLGVPPLRVWRHRARSVRARLLSQGGRAATCGKYLFNWAVKTKLKLTPIPAASQLDLSGWFVAGYSGGDIYHSL  564
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       | -   |   160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520       530       540       550       560    
                                                                                                                                                                             148   154                                                                                                                                                                                                                                                                                                                                                                                                                          

Chain B from PDB  Type:PROTEIN  Length:561
 aligned with Q99AU2_9HEPC | Q99AU2 from UniProtKB/TrEMBL  Length:3010

    Alignment length:566
                                  2429      2439      2449      2459      2469      2479      2489      2499      2509      2519      2529      2539      2549      2559      2569      2579      2589      2599      2609      2619      2629      2639      2649      2659      2669      2679      2689      2699      2709      2719      2729      2739      2749      2759      2769      2779      2789      2799      2809      2819      2829      2839      2849      2859      2869      2879      2889      2899      2909      2919      2929      2939      2949      2959      2969      2979      
        Q99AU2_9HEPC   2420 SMSYTWTGALITPCAAEESKLPINALSNSLLRHHNMVYATTSRSAGLRQKKVTFDRLQVLDDHYRDVLKEMKAKASTVKAKLLSVEEACKLTPPHSAKSKFGYGAKDVRNLSSKAVNHIHSVWKDLLEDTVTPIDTTIMAKNEVFCVQPEKGGRKPARLIVFPDLGVRVCEKMALYDVVSTLPQVVMGSSYGFQYSPGQRVEFLVNTWKSKKNPMGFSYDTRCFDSTVTENDIRVEESIYQCCDLAPEARQAIKSLTERLYIGGPLTNSKGQNCGYRRCRASGVLTTSCGNTLTCYLKASAACRAAKLQDCTMLVNGDDLVVICESAGTQEDAASLRVFTEAMTRYSAPPGDPPQPEYDLELITSCSSNVSVAHDASGKRVYYLTRDPTTPLARAAWETARHTPVNSWLGNIIMYAPTLWARMILMTHFFSILLAQEQLEKALDCQIYGACYSIEPLDLPQIIERLHGLSAFSLHSYSPGEINRVASCLRKLGVPPLRVWRHRARSVRARLLSQGGRAATCGKYLFNWAVKTKLKLTPIPAASQLDLSGWFVAGYSGGDIYHSLSR 2985
               SCOP domains d2ijnb_ B: automated matches                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eee...................hhhhhh.hhh.eee.hhhhhhhhhhhh........hhhhhhhhhhhhhhhh.......hhhhhhhh............hhhhhhh.hhhhhhhhhhhhhhhhhh......eeeee...eee..-----.....eeeeehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeeee...hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhh...eeee.....eeeee........hhhhhhhhhhhhhhhhhhhhh.....eeeee..eeeeeee..hhhhhhhhhhhhhhhhhhh............hhhhh.....eeeeee.....eeeeee..hhhhhhhhhhhhhh....hhhhhhhhhhh.hhhhhhhhhhhhhhhhhhh......eeeee..eeeeehhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh............hhhhhh................ee.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2ijn B    1 HHSYTWTGALITPCAAEESKLPINALSNSLLRHHNMVYATTSRSAGLRQKKVTFDRLQVLDDHYRDVLKEMKAKASTVKAKLLSVEEACKLTPPHSAKSKFGYGAKDVRNLSSKAVNHIHSVWKDLLEDTVTPIDTTIMAKNEVFCVQ-----RKPARLIVFPDLGVRVCEKMALYDVVSTLPQVVMGSSYGFQYSPGQRVEFLVNTWKSKKNPMGFSYDTRCFDSTVTENDIRVEESIYQCCDLAPEARQAIKSLTERLYIGGPLTNSKGQNCGYRRCRASGVLTTSCGNTLTCYLKASAACRAAKLQDCTMLVNGDDLVVICESAGVQEDAASLRAFTEAMTRYSAPPGDPPQPEYDLELITSCSSNVSVAHDASGKRVYYLTRDPTTPLARAAWETARHTPVNSWLGNIIMYAPTLWARMILMTHFFSILLAQEQLEKALDCQIYGACYSIEPLDLPQIIERLHGLSAFSLHSYSPGEINRVASCLRKLGVPPLRVWRHRARSVRARLLSQGGRAATCGKYLFNWAVKTKLKLTPIPAASQLDLSGWFVAGYSGGDIYHSLSR  566
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       | -   |   160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520       530       540       550       560      
                                                                                                                                                                             148   154                                                                                                                                                                                                                                                                                                                                                                                                                            

   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, 2)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2IJN)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (31, 31)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q99AU2_9HEPC | Q99AU2)
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: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: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:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    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: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: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.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    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: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:0019087    transformation of host cell by virus    Any virus-induced change in the morphological, biochemical, or growth parameters of a cell.
    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: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.

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 Related Entries

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

UniProtKB/Swiss-Prot
        Q99AU2_9HEPC | Q99AU22zku 3cwj 3udl
UniProtKB/TrEMBL
        Q99AU2_9HEPC | Q99AU22d3u 2d3z 2d41 2fvc 2gc8 2hai 2qe2 2qe5 3hhk 3o8b 3o8c 3o8d 3o8r

(-) Related Entries Specified in the PDB File

2hwh HCV NS5B INHIBITOR COMPLEX
2hwi HCV NS5B INHIBITOR COMPLEX
2i1r HCV NS5B INHIBITOR COMPLEX