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(-) Description

Title :  A THREE-GATE STRUCTURE OF TOPOISOMERASE IV FROM STREPTOCOCCUS PNEUMONIAE
 
Authors :  I. Laponogov, D. A. Veselkov, X. -S. Pan, I. Crevel, L. M. Fisher, M. R. Sa
Date :  26 Nov 12  (Deposition) - 28 Aug 13  (Release) - 04 Dec 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.70
Chains :  Asym./Biol. Unit :  A,B,E,F,G,H
Keywords :  Dna Unwinding, Supercoiling, Isomerase-Dna Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  I. Laponogov, D. A. Veselkov, I. M. Crevel, X. S. Pan, L. M. Fisher, M. R. Sanderson
Structure Of An 'Open' Clamp Type Ii Topoisomerase-Dna Complex Provides A Mechanism For Dna Capture And Transport.
Nucleic Acids Res. V. 41 9911 2013
PubMed-ID: 23965305  |  Reference-DOI: 10.1093/NAR/GKT749

(-) Compounds

Molecule 1 - DNA (5'- D(*CP*AP*AP*AP*GP*GP*CP*GP*GP*TP*AP*AP*TP*AP*CP*GP*GP*TP*TP*AP*TP*CP* CP*AP*CP*AP*GP*AP*AP*TP*CP*AP*GP*G)-3')
    Chains: E, G
    Engineered: YES
    Other Details: V-SITE DNA
    Synthetic: YES
 
Molecule 2 - DNA (5'- D(*CP*CP*TP*GP*AP*TP*TP*CP*TP*GP*TP*GP*GP*AP*TP*AP*AP*CP*CP*GP*TP*AP* TP*TP*AP*CP*CP*GP*CP*CP*TP*TP*TP*G)-3')
    Chains: F, H
    Engineered: YES
    Other Details: V-SITE DNA
    Synthetic: YES
 
Molecule 3 - TOPOISOMERASE IV SUBUNIT B, DNA TOPOISOMERASE 4 SUBUNIT A CHIMERA
    Atcc: BAA-334
    Chains: A, B
    EC Number: 5.99.1.-, 5.99.1.3
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Gene: PARE, PARC
    Organism Scientific: STREPTOCOCCUS PNEUMONIAE
    Organism Taxid: 170187
    Strain: TIGR4

 Structural Features

(-) Chains, Units

  123456
Asymmetric/Biological Unit : ABEFGH

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 3)

Asymmetric/Biological Unit (1, 3)
No.NameCountTypeFull Name
1MG3Ligand/IonMAGNESIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPHE A:1316 , LYS A:1317 , THR A:1319 , GLN A:1322BINDING SITE FOR RESIDUE MG A 1700
2AC2SOFTWAREPHE B:1316 , THR B:1319 , GLN B:1322BINDING SITE FOR RESIDUE MG B 1700

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 4I3H)

(-) Cis Peptide Bonds  (6, 6)

Asymmetric/Biological Unit
No.Residues
1Asp A:37 -Gly A:38
2Lys A:547 -Gly A:548
3Thr A:640 -Leu A:641
4Thr A:1168 -Gly A:1169
5Asp B:37 -Gly B:38
6Thr B:1168 -Gly B:1169

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4I3H)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4I3H)

(-) Exons   (0, 0)

(no "Exon" information available for 4I3H)

(-) 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:1037
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhh......hhhhhhhhhhhhhhhhhhh.eeeeee.....eeeee..hhhhhhh.............hhhhhheeeeeeeeee..eeeeeeee...ee....eeeee......eeeeeeee..........hhhhhhhhhhhhhh.....eeeeee....eeeee...hhhhhhhhhhh.........eeeeeee..eeeeeeeee......eeeeee..ee....hhhhhhhhhhhhhhhhhhhhh........hhhhhh.eeeeeeee...................hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh................eeeeeehhhhhhhhhhhh....eeeeee..........hhhhhhhhhhhhhhhhhhh...............eeee....hhhhhhhhhhhhhhhhhhhhhhhhh..eeee....ee.....ee..............hhhhhhhhhhhhhh.......eeeee..hhhhhhhhhhhhhh.hhhhhhhhhhhhh......eeeeehhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhh........eehhhhhhhhhhhh...hhhhhhhhhhhh..........eeee.................eeeehhhhhhhh.hhhhh...eee......eee.......hhhhhh.ee........ee...hhhhhhhhhhhhhhh...hhhhhh............eeehhhhhhhhhhhheeeeeee.eeeeee.....eeeeeee.....hhhhhhhhhhhhhh......eeeeee........eeeee....hhhhhhhhhhhhh..eeeeeee.eee....eee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhh.hhhhhhhhhh.hhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....eee. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                4i3h A   24 AVRKRPGMYIGSTDGAGLHHLVWEIVDNAVDEALSDRIDVTINKDGSLTVQDHTVEVIFTILHAGGKFLHGVGSSVVNALSSWLEVEITRDGAVYKQRFENGGKPVTTLKKIGTAPKSKTGTKVTFMPDATIFSTTDFKYNTISERLNESAFLLKNVTLSLTDKRTDEAIEFHYENGVQDFVSYLNEDKEILTPVLYFEGEDNGFQVEVALQYNDGFSDNILSFVNNVRTKDGGTHETGLKSAITKVMNDYARKTGLLKEKEGSDYREGLAAVLSILVPEEHLQFEGQTKDKLGSPLARPVVDGIVADKLTFFLMENGELASNLIRKAIKARDAREAARKARGKLTPAQSKNPAKNELYLVEGDSAGGSAKQGRDRKFQAILPLRGKVINTAKAKMADILKNEEINTMIYTIGAGVGADFSIEDANYDKIIIMTDADTDGAHIQTLLLTFFYRYMRPLVEAGHVYIALPPLYKMSKGAYAWDGELEELRLQRYKGLGEMNADQLWETTMNPETRTLIRVTIEDLARAERRVNVLMGDKVEPRRKWIEDNVKFTLENIQNMSLEDIMGERFGRYSKYIIQDRALPDIRDGLKPVQRRILYSMNKDSNTFDKSYRKSAKSVGNIMGNFHPHGDSSIYDAMVRMSQNWKNREILVEMHGNNGSMDGDPPAAMRYTEARLSEIAGYLLQDIEKKTVPFAWNFDDTEKEPTVLPAAFPNLLVNGSTGISAGYATDIPPHNLAEVIDAAVYMIDHPTAKIDKLMEFLPGPDFPTGAIIQGRDEIKKAYETGKGRVVVRSKTEIEKLKGGKEQIVITEIPYEINKANLVKKIDDVRVNNKVAGIAEVRDESDRDGLRIAIELKKDANTELVLNYLFKYTDLQINYNFNMVAIDNFTPRQVGIVPILSSYIAHRREVILARSRFDKEKAEKRLHIVEGLIRVISILDEVIALIRASENKADAKENLKVSYDFTEEQAEAIVTLQLYRLTNTDVVVLQEEEAELREKIAMLAAIIGDERTMYNLMKKELREVKKKFATPRLSSLED 1484
                                    33        43        53    ||  66        76  ||   100       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310||     324       334       344       354       364       374       384       394 ||    421       431       441       451       461       471       481       491       501       511       521       531       541      |558||     577       587       597       607       617       627       637    ||1007      1017      1027      1037      1047      1057      1067      1077      1087      1097      1107      1117      1127      1137      1147      1157      1167      1177      1187      1197      1207      1217      1227      1237      1247      1257      1267      1277      1287      1297      1307      1317      1327      1337      1347      1357      1367      1377      1387      1397      1407      1417      1427      1437      1447      1457      1467      1477       
                                                             58|               79|           108|                                                                                                                                                                                             311|                                                                             396|                                                                                                                                   548|  ||    568|                                                              642|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
                                                              62                94            119                                                                                                                                                                                              316                                                                              414                                                                                                                                    556  ||     577                                                              1003                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          559|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           561                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           


Chain B from PDB  Type:PROTEIN  Length:1035
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhh...eeeeee.....eeeee..hhhhhhh...........hhhhhh..eeeeeee....eeeeeee.........ee.......eeeeeee...........hhhhhhhhhhhhhhhh...eeeeee.hhheeeee....hhhhhhhhhh.........eeee......eeeeeeee......eeeeee..eee...hhhhhhhhhhhhhhhhhhhhhh.............eeeeeeee.hhhhh.............hhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhh..............eeeeeehhhhhhhhhhhh....eeeeee..........hhhhhhhhhhhhhhhhhh........hhhhh...eeeee...hhhhhhhhhhhhhhhhhhhhhhhhhh.eeee......................hhhhhhhhhhhhhhh......eeeee...hhhhhhhhhhhh..hhhhhhhhhhhhh.......eeehhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhh........eehhhhhhhhhhhh...hhhhhhhhhhhh..........eeee.................eeeehhhhhhhhh........eee......eee.......hhhhhh.eeee....eeee...hhhhhhhhhhhhhh....hhhhhh............eeehhhhhhhhhhhheeeeeee.eeeeee.....eeeeeee.....hhhhhhhhhhhhhhhh....eeeeee........eeeee....hhhhhhhhhhhhh..eeeeeee.eee....eee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhh....hhhhhhhhhh.hhhhh...hhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhh.....eee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                4i3h B   20 EGLDAVRKRPGMYIGSTDGAGLHHLVWEIVDNAVDEALSGFDRIDVTINKDGSLTVQDHTVEVIFTILHAGGKFGVGSSVVNALSSWLEVEITRDGAVYKQRFENGGKPVTTLKKIGTAPKTGTKVTFMPDATIFSTTDFKYNTISERLNESAFLLKNVTLSLTDKRTDEAIEFHYENGVQDFVSYLNEDKEILTPVLYFEGEDNGFQVEVALQYNDGFSDNILSFVNNVRTKDGGTHETGLKSAITKVMNDYARKTGLLNLEGSDYREGLAAVLSILVPEEHLQFEGQTKDKLGSPLARPVVDGIVADKLTFFLMENGELASNLIRKAIKARDAREAARKARDESGKLTPAQSKNPAKNELYLVEGDSAGGSAKQGRDRKFQAILPLRGKVINTAKAKMADILKNEEINTMIYTIGAGVGADFSIEDANYDKIIIMTDADTDGAHIQTLLLTFFYRYMRPLVEAGHVYIALPPLYKMAWTDGELEELLQRYKGLGEMNADQLWETTMNPETRTLIRVTIEDLARAERRVNVLMGDKVEPRRKWIEDNVKFTSNIQNMSLEDIMGERFGRYSKYIIQDRALPDIRDGLKPVQRRILYSMNKDSNTFDKSYRKSAKSVGNIMGNFHPHGDSSIYDAMVRMSQNWKNREILVEMHGNNGSMDGDPPAAMRYTEARLSEIAGYLLQDIEKKTVPFAWNFDDTEKEPTVLPAAFPNLLVNGSTGISAGYATDIPPHNLAEVIDAAVYMIDHPTAKIDKLMEFLPGPDFPTGAIIQGRDEIKKAYETGKGRVVVRSKTEIEKLKGGKEQIVITEIPYEINKANLVKKIDDVRVNNKVAGIAEVRDESDRDGLRIAIELKKDANTELVLNYLFKYTDLQINYNFNMVAIDNFTPRQVGIVPILSSYIAHRREVILARSRFDKEKAEKRLHIVEGLIRVISILDEVIALIRASENKADAKENLKVSYDFTEEQAEAIVTLQLYRLTNTDVVVLQEEEAELREKIAMLAAIIGDERTMYNLMKKELREVKKKFATPRLSSLED 1484
                                    29        39        49        59||      70        94       104    || 126       136       146       156       166|      178       188       198       208       218       228       238       248       258       268       278       288       298       308|      323       333       343       353       363       373       383       393     ||417       427       437       447       457       467       477       487       497       507       517       527       537       559       578       588       598       608       618       628       638 ||   1009      1019      1029      1039      1049      1059      1069      1079      1089      1099      1109      1119      1129      1139      1149      1159      1169      1179      1189      1199      1209      1219      1229      1239      1249      1259      1269      1279      1289      1299      1309      1319      1329      1339      1349      1359      1369      1379      1389      1399      1409      1419      1429      1439      1449      1459      1469      1479     
                                                                   60|               79|            109|                                         166|                                                                                                                                        308|                                                                                  399|                                                                                                                                545|      567|                                                            640|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
                                                                    62                94             122                                          169                                                                                                                                         314                                                                                   414                                                                                                                                 558       577                                                            1002                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  


Chain E from PDB  Type:DNA  Length:14
                                               
                4i3h E    2 AATACGGTTATCCA   15
                                    11    


Chain F from PDB  Type:DNA  Length:14
                                               
                4i3h F    2 TGGATAACCGTATT   15
                                    11    


Chain G from PDB  Type:DNA  Length:20
                                                     
                4i3h G    8 GGTAATACGGTTATCCACAG   27
                                    17        27


Chain H from PDB  Type:DNA  Length:20
                                                     
                4i3h H    8 CTGTGGATAACCGTATTACC   27
                                    17        27
   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 4I3H)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4I3H)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4I3H)

(-) Gene Ontology  (15, 24)

Asymmetric/Biological Unit(hide GO term definitions)

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  Cis Peptide Bonds
    Asp A:37 - Gly A:38   [ RasMol ]  
    Asp B:37 - Gly B:38   [ RasMol ]  
    Lys A:547 - Gly A:548   [ RasMol ]  
    Thr A:1168 - Gly A:1169   [ RasMol ]  
    Thr A:640 - Leu A:641   [ RasMol ]  
    Thr B:1168 - Gly B:1169   [ RasMol ]  
 

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 Related Entries

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

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(-) Related Entries Specified in the PDB File

1ei1 E. COLI DNA GYRASE B ATP DOMAIN (DIMER) COMPLEXED WITH ANP
2nov CRYSTAL STRUCTURE OF PARC55 FROM S. PNEUMONIAE
3foe CLINAFLOXACIN-STABILISED CLEAVAGE COMPLEX OF TOPO IV FROM S. PNEUMONIAE
3fof MOXIFLOXACIN-STABILISED CLEAVAGE COMPLEX OF TOPO IV FROM S. PNEUMONIAE
3k9f LEVOFLOXACIN-STABILISED CLEAVAGE COMPLEX OF TOPO IV FROM S. PNEUMONIAE (SOAKED)
3ksa DRUG-FREE CLEAVAGE COMPLEX OF TOPO IV FROM S. PNEUMONIAE (CLEAVED FORM)
3ksb DRUG-FREE CLEAVAGE COMPLEX OF TOPO IV FROM S. PNEUMONIAE (RESEALED FORM)
3ltn PD0305970-STABILISED CLEAVAGE COMPLEX OF TOPO IV FROM S. PNEUMONIAE
3rad INHIBITOR-STABILISED CLEAVAGE COMPLEX OF TOPOISOMERASE IIA FROM S. PNEUMONIAE (CLINAFLOXACIN)
3rae INHIBITOR-STABILISED CLEAVAGE COMPLEX OF TOPOISOMERASE IIA FROM S. PNEUMONIAE (LEVOFLOXACIN)
3raf INHIBITOR-STABILISED CLEAVAGE COMPLEX OF TOPOISOMERASE IIA FROM S. PNEUMONIAE (PD 0305970)
4gfh TOPOISOMERASE II-DNA-AMPPNP COMPLEX (SACCHAROMYCES CEREVISIAE)