Show PDB file:   
         Plain Text   HTML   (compressed file size)
QuickSearch:   
by PDB,NDB,UniProt,PROSITE Code or Search Term(s)  
(-)Asymmetric Unit
(-)Biological Unit 1
(-)Biological Unit 2
collapse expand < >
Image Asymmetric Unit
Asymmetric Unit  (Jmol Viewer)
Image Biological Unit 1
Biological Unit 1  (Jmol Viewer)
Image Biological Unit 2
Biological Unit 2  (Jmol Viewer)

(-) Description

Title :  CRYSTAL STRUCTURE OF FREE CRM1 (CRYSTAL FORM 2)
 
Authors :  T. Monecke, P. Neumann, A. Dickmanns, R. Ficner
Date :  15 Nov 12  (Deposition) - 23 Jan 13  (Release) - 30 Jan 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.10
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Heat Repeat Protein, Nuclear Export Receptor, Transport Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  T. Monecke, D. Haselbach, B. Voss, A. Russek, P. Neumann, E. Thomson, E. Hurt, U. Zachariae, H. Stark, H. Grubmuller, A. Dickmanns, R. Ficne
Structural Basis For Cooperativity Of Crm1 Export Complex Formation.
Proc. Natl. Acad. Sci. Usa V. 110 960 2013
PubMed-ID: 23277578  |  Reference-DOI: 10.1073/PNAS.1215214110

(-) Compounds

Molecule 1 - CRM1 NUCLEAR TRANSPORT RECEPTOR
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET24D
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    GeneCTHT_0002400
    Organism ScientificCHAETOMIUM THERMOPHILUM VAR. THERMOPHILUM
    Organism Taxid759272
    StrainDSM 1495 / CBS 144.50 / IMI 039719

 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  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 4HZK)

(-) Sites  (0, 0)

(no "Site" information available for 4HZK)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 4HZK)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 4HZK)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4HZK)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4HZK)

(-) Exons   (0, 0)

(no "Exon" information available for 4HZK)

(-) 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:1033
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhh..hhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhh....hhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.............hhhhhh....hhhhhhhhhhhhhhhhhhh........eee.....eee....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhh.........................hhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhh.....hhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                4hzk A   35 EDPDAWLMVDEILEQTKFLALQVLDNVIMTRWKVLPREQCQGIRNFVVQYILQCSSSEESLRTHRTLLNKLNLVLVSVLKQEWPHNWPTFINEIVSACHSSLSVCENNMIILRLLSEEVFDYSADQMTSTKTRNLKSTMCAEFSMIFQLCQEILNSATQPSLIKATLETLLRFCNWIPLGYIFETPLIDTLRTRFLEVPEFRNVTLQCLTEIGGLQTGGPGQPHTYDEQLIKMFTEVLTTISNIIPLQMDLKATYPNSNSRDQEFIQNLALFLTSFFTMHLPLIENLPNRDFLTHGHFYLIRISQIDDREIFKICLDYWLKLVQELYEEMQSLPLNDMSSMGLGMMSGGGAPNPALLEHYPLRKHKYKEVLSNLRVVMIEKMVRPEEVLIVENDEGEIVREFVKDTDSVQLYKTIRECLVYLTHLDVVDMEQIMTEKLARQVDGSEWSWHNCNVLCWAIGSISMAMNEETEKRFLVTVIKDLLGLTEMKRGKDNKAVVASNIMYIVGQYPRFLKAHWKFLKTVVNKLFEFMHESHEGVQDMACDTFIKIAKQCRRHFVALQPSENEPFIEEIIRNIGKITCDLTPQQVHTFYEACGYMVSAQGNRNQQERLLAELMAIPNAAWDEIIKAATMNPGILHEPDTIKIIGNIMKTNVSACSSIGPYFFPQIGRLYNDMLQMYAATSQLISEAVARDGEIATKMPKVRGLRTIKKEILKLVETFVEKAEDLQAVRSQMIPGLLDSVLVDYNRNVPGARDAEVLKAMTVIITRLQGLMEDQVPAIMENVFECTLDMINKDFAEYPEHRVEFFNLLRAINLYCFPALLKLDNRQFKFVIDSCMWASKHDNRDVETAGLNMCLELINNIAEKTDVQTCNAFFNQFFIRILQDVFFVLTDTDHKAGFKTQSMLLMRLFYFVHPADGSAPKIQGPIYQPDQAQPGTGNREFLANFVGTLLQNAFANLTPLQITTFVKDCFELNTQYDKFRVVLRDFLISLREFAGDNAELYQVEKEQQEREARAADLERRSKVGGLLKPSEL 1072
                                    44  ||    59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619       629       639       649       659       669       679       689       699       709       719       729       739       749       759       769       779       789       799       809       819       829       839       849       859       869       879       889       899       909       919       929       939       949       959       969       979       989       999      1009      1019      1029      1039      1049      1059      1069   
                                       47|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
                                        53                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Chain B from PDB  Type:PROTEIN  Length:1031
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhh....hhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhh....................hhhhhh....hhhhhhhhhhhhhhhhhhh........eee.....eee....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhh.......................hhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhh....hhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                4hzk B   33 FKEDPDAWLMVEQTKFLALQVLDNVIMTRWKVLPREQCQGIRNFVVQYILQCSSSEESLRTHRTLLNKLNLVLVSVLKQEWPHNWPTFINEIVSACHSSLSVCENNMIILRLLSEEVFDYSADQMTSTKTRNLKSTMCAEFSMIFQLCQEILNSATQPSLIKATLETLLRFCNWIPLGYIFETPLIDTLRTRFLEVPEFRNVTLQCLTEIGGLQTGGPGQPHTYDEQLIKMFTEVLTTISNIIPLQMDLKATYPNSNSRDQEFIQNLALFLTSFFTMHLPLIENLPNRDFLTHGHFYLIRISQIDDREIFKICLDYWLKLVQELYEEMQSLPLNDMSSMGLGMMSGGGAPNPALLEHYPLRKHKYKEVLSNLRVVMIEKMVRPEEVLIVENDEGEIVREFVKDTDSVQLYKTIRECLVYLTHLDVVDMEQIMTEKLARQVDGSEWSWHNCNVLCWAIGSISMAMNEETEKRFLVTVIKDLLGLTEMKRGKDNKAVVASNIMYIVGQYPRFLKAHWKFLKTVVNKLFEFMHESHEGVQDMACDTFIKIAKQCRRHFVALQPSENEPFIEEIIRNIGKITCDLTPQQVHTFYEACGYMVSAQGNRNQQERLLAELMAIPNAAWDEIIKAATMNPGILHEPDTIKIIGNIMKTNVSACSSIGPYFFPQIGRLYNDMLQMYAATSQLISEAVARDGEIATKMPKVRGLRTIKKEILKLVETFVEKAEDLQAVRSQMIPGLLDSVLVDYNRNVPGARDAEVLKAMTVIITRLQGLMEDQVPAIMENVFECTLDMINKDFAEYPEHRVEFFNLLRAINLYCFPALLKLDNRQFKFVIDSCMWASKHDNRDVETAGLNMCLELINNIAEKTDVQTCNAFFNQFFIRILQDVFFVLTDTDHKAGFKTQSMLLMRLFYFVHPADGSAPKIQGPIYQPDQAQPGTGNREFLANFVGTLLQNAFANLTPLQITTFVKDCFELNTQYDKFRVVLRDFLISLREFAGDNAELYQVEKEQQEREARAADLERRSKVGGLLKPSEL 1072
                                    42||      61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561       571       581       591       601       611       621       631       641       651       661       671       681       691       701       711       721       731       741       751       761       771       781       791       801       811       821       831       841       851       861       871       881       891       901       911       921       931       941       951       961       971       981       991      1001      1011      1021      1031      1041      1051      1061      1071 
                                     43|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
                                      53                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

   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  (0, 0)

(no "SCOP Domain" information available for 4HZK)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4HZK)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4HZK)

(-) Gene Ontology  (0, 0)

Asymmetric Unit(hide GO term definitions)
    (no "Gene Ontology" information available for 4HZK)

 Visualization

(-) Interactive Views

Asymmetric Unit
  Complete Structure
    Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
    WebMol | AstexViewer[tm]@PDBe
(Java Applets, require no local installation except for Java; loading may be slow)
    STRAP
(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    RasMol
(require local installation)
    Molscript (VRML)
(requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)
 
  Ligands, Modified Residues, Ions
(no "Ligands, Modified Residues, Ions" information available for 4hzk)
 
  Sites
(no "Sites" information available for 4hzk)
 
  Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 4hzk)
 
Biological Units
  Complete Structure
    Biological Unit 1  [ Jena3D ]
    Biological Unit 2  [ Jena3D ]

(-) Still Images

Jmol
  protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick
Molscript
  protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick

 Databases and Analysis Tools

(-) Databases

Access by PDB/NDB ID
  4hzk
    Family and Domain InformationProDom | SYSTERS
    General Structural InformationGlycoscienceDB | MMDB | NDB | OCA | PDB | PDBe | PDBj | PDBsum | PDBWiki | PQS | PROTEOPEDIA
    Orientation in MembranesOPM
    Protein SurfaceSURFACE
    Secondary StructureDSSP (structure derived) | HSSP (homology derived)
    Structural GenomicsGeneCensus
    Structural NeighboursCE | VAST
    Structure ClassificationCATH | Dali | SCOP
    Validation and Original DataBMRB Data View | BMRB Restraints Grid | EDS | PROCHECK | RECOORD | WHAT_CHECK
 
Access by UniProt ID/Accession number
  G0RZB7_CHATD | G0RZB7
    Comparative Protein Structure ModelsModBase
    Genomic InformationEnsembl
    Protein-protein InteractionDIP
    Sequence, Family and Domain InformationInterPro | Pfam | SMART | UniProtKB/TrEMBL
 
Access by Enzyme Classificator   (EC Number)
  (no 'Enzyme Classificator' available)
    General Enzyme InformationBRENDA | EC-PDB | Enzyme | IntEnz
    PathwayKEGG | MetaCyc
 
Access by Disease Identifier   (MIM ID)
  (no 'MIM ID' available)
    Disease InformationOMIM
 
Access by GenAge ID
  (no 'GenAge ID' available)
    Age Related InformationGenAge

(-) Analysis Tools

Access by PDB/NDB ID
    Domain InformationXDom
    Interatomic Contacts of Structural UnitsCSU
    Ligand-protein ContactsLPC
    Protein CavitiescastP
    Sequence and Secondary StructurePDBCartoon
    Structure AlignmentSTRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    Structure and Sequence BrowserSTING
 
Access by UniProt ID/Accession number
  G0RZB7_CHATD | G0RZB7
    Protein Disorder PredictionDisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)

 Related Entries

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

UniProtKB/TrEMBL
        G0RZB7_CHATD | G0RZB74fgv

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 4HZK)