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(-) Description

Title :  COMPLEX II (SUCCINATE DEHYDROGENASE) FROM E. COLI WITH DINITROPHENOL-17 INHIBITOR CO-CRYSTALLIZED AT THE UBIQUINONE BINDING SITE
 
Authors :  V. Yankovskaya, R. Horsefield, S. Tornroth, C. Luna-Chavez, H. Miyoshi, C. Leger, B. Byrne, G. Cecchini, S. Iwata
Date :  11 Dec 02  (Deposition) - 25 Feb 03  (Release) - 31 Mar 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.90
Chains :  Asym. Unit :  A,B,C,D
Biol. Unit 1:  A,B,C,D  (1x)
Biol. Unit 2:  A,B,C,D  (3x)
Biol. Unit 3:  A,B,C,D  (2x)
Keywords :  Membrane Protein, Respiratory Complex, Oxidoreductase/Electron Transport Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  V. Yankovskaya, R. Horsefield, S. Tornroth, C. Luna-Chavez, H. Miyoshi, C. Leger, B. Byrne, G. Cecchini, S. Iwata
Architecture Of Succinate Dehydrogenase And Reactive Oxygen Species Generation
Science V. 299 700 2003
PubMed-ID: 12560550  |  Reference-DOI: 10.1126/SCIENCE.1079605
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SUCCINATE DEHYDROGENASE FLAVOPROTEIN SUBUNIT
    ChainsA
    EC Number1.3.99.1, 1.3.5.1
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPFAS
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneSDHA OR B0723 OR Z0877 OR ECS0748
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
 
Molecule 2 - SUCCINATE DEHYDROGENASE IRON-SULFUR PROTEIN
    ChainsB
    EC Number1.3.99.1, 1.3.5.1
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPFAS
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneSDHB OR B0724
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
 
Molecule 3 - SUCCINATE DEHYDROGENASE CYTOCHROME B-556 SUBUNIT
    ChainsC
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPFAS
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneSDHC OR CYBA OR B0721 OR Z0875 OR ECS0746
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
 
Molecule 4 - SUCCINATE DEHYDROGENASE HYDROPHOBIC MEMBRANE ANCHOR PROTEIN
    ChainsD
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPFAS
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneSDHD OR B0722
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit ABCD
Biological Unit 1 (1x)ABCD
Biological Unit 2 (3x)ABCD
Biological Unit 3 (2x)ABCD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (10, 11)

Asymmetric Unit (10, 11)
No.NameCountTypeFull Name
1CA2Ligand/IonCALCIUM ION
2CDN1Ligand/IonCARDIOLIPIN
3DNT1Ligand/Ion2-[1-METHYLHEXYL]-4,6-DINITROPHENOL
4EPH1Ligand/IonL-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINE
5F3S1Ligand/IonFE3-S4 CLUSTER
6FAD1Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
7FES1Ligand/IonFE2/S2 (INORGANIC) CLUSTER
8HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
9OAA1Ligand/IonOXALOACETATE ION
10SF41Ligand/IonIRON/SULFUR CLUSTER
Biological Unit 1 (9, 9)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2CDN1Ligand/IonCARDIOLIPIN
3DNT1Ligand/Ion2-[1-METHYLHEXYL]-4,6-DINITROPHENOL
4EPH1Ligand/IonL-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINE
5F3S1Ligand/IonFE3-S4 CLUSTER
6FAD1Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
7FES1Ligand/IonFE2/S2 (INORGANIC) CLUSTER
8HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
9OAA1Ligand/IonOXALOACETATE ION
10SF41Ligand/IonIRON/SULFUR CLUSTER
Biological Unit 2 (9, 27)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2CDN3Ligand/IonCARDIOLIPIN
3DNT3Ligand/Ion2-[1-METHYLHEXYL]-4,6-DINITROPHENOL
4EPH3Ligand/IonL-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINE
5F3S3Ligand/IonFE3-S4 CLUSTER
6FAD3Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
7FES3Ligand/IonFE2/S2 (INORGANIC) CLUSTER
8HEM3Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
9OAA3Ligand/IonOXALOACETATE ION
10SF43Ligand/IonIRON/SULFUR CLUSTER
Biological Unit 3 (9, 18)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2CDN2Ligand/IonCARDIOLIPIN
3DNT2Ligand/Ion2-[1-METHYLHEXYL]-4,6-DINITROPHENOL
4EPH2Ligand/IonL-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINE
5F3S2Ligand/IonFE3-S4 CLUSTER
6FAD2Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
7FES2Ligand/IonFE2/S2 (INORGANIC) CLUSTER
8HEM2Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
9OAA2Ligand/IonOXALOACETATE ION
10SF42Ligand/IonIRON/SULFUR CLUSTER

(-) Sites  (11, 11)

Asymmetric Unit (11, 11)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLY A:51 , PHE A:126 , HIS A:242 , THR A:254 , GLU A:255 , ARG A:286 , HIS A:354 , ARG A:399 , GLY A:401 , GLY A:402 , FAD A:601BINDING SITE FOR RESIDUE OAA A 589
02AC2SOFTWARETYR A:355 , MET A:356 , MET A:357 , GLU A:388 , ALA A:390BINDING SITE FOR RESIDUE CA A 590
03AC3SOFTWAREASP B:187 , THR B:190BINDING SITE FOR RESIDUE CA B 311
04AC4SOFTWAREGLY A:14 , ALA A:15 , GLY A:16 , GLY A:17 , ALA A:18 , SER A:37 , LYS A:38 , SER A:44 , HIS A:45 , THR A:46 , SER A:48 , ALA A:49 , GLN A:50 , GLY A:51 , GLY A:52 , TRP A:164 , TYR A:165 , ALA A:166 , ALA A:201 , THR A:202 , GLY A:203 , THR A:213 , ASN A:214 , ASP A:221 , LEU A:252 , HIS A:354 , TYR A:355 , GLY A:387 , GLU A:388 , ARG A:399 , GLY A:402 , ASN A:403 , SER A:404 , LEU A:405 , LEU A:408 , OAA A:589 , HOH A:617BINDING SITE FOR RESIDUE FAD A 601
05AC5SOFTWARESER B:54 , CYS B:55 , ARG B:56 , GLY B:58 , VAL B:59 , CYS B:60 , GLY B:61 , ASP B:63 , CYS B:75BINDING SITE FOR RESIDUE FES B 302
06AC6SOFTWARECYS B:149 , ILE B:150 , CYS B:152 , ALA B:153 , CYS B:155 , LEU B:176 , CYS B:216 , LEU B:220BINDING SITE FOR RESIDUE SF4 B 303
07AC7SOFTWARECYS B:159 , PRO B:172 , CYS B:206 , HIS B:207 , SER B:208 , ILE B:209 , MET B:210 , ASN B:211 , CYS B:212 , THR B:223BINDING SITE FOR RESIDUE F3S B 304
08AC8SOFTWAREHIS B:207 , HIS C:30 , ARG C:31 , THR C:37 , PHE C:38 , HIS C:84 , VAL C:85 , GLY C:88 , ILE C:89 , HIS C:91 , CDN C:308 , HOH C:311 , ALA D:23 , LEU D:26 , THR D:27 , ILE D:68 , HIS D:71 , GLY D:75 , MET D:76 , GLN D:78BINDING SITE FOR RESIDUE HEM C 305
09AC9SOFTWAREPRO B:160 , TRP B:163 , TRP B:164 , HIS B:207 , ILE B:209 , LEU C:15 , PHE C:20 , ALA C:24 , SER C:27 , ILE C:28 , ARG C:31 , TYR D:83BINDING SITE FOR RESIDUE DNT C 306
10BC1SOFTWARESER C:51 , ALA C:61 , SER C:62 , MET C:65 , LEU C:78 , ALA C:82 , VAL C:115 , LEU C:123 , VAL C:126 , LEU C:127 , TRP C:129 , HEM C:305 , EPH C:309 , TYR D:29 , ILE D:30 , PHE D:37 , GLY D:41 , LEU D:43 , TRP D:48 , ILE D:68 , HOH D:124BINDING SITE FOR RESIDUE CDN C 308
11BC2SOFTWARELYS C:107 , LYS C:111 , PHE C:114 , TRP C:129 , CDN C:308BINDING SITE FOR RESIDUE EPH C 309

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (6, 6)

Asymmetric Unit (6, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
12FE2S_FER_2PS51085 2Fe-2S ferredoxin-type iron-sulfur binding domain profile.SDHB_ECOLI8-97  1B:8-97
2SDH_CYT_1PS01000 Succinate dehydrogenase cytochrome b subunit signature 1.DHSC_ECOLI9-33  1C:9-33
3FRD_SDH_FAD_BINDINGPS00504 Fumarate reductase / succinate dehydrogenase FAD-binding site.SDHA_ECOLI43-52  1A:43-52
4SDH_CYT_2PS01001 Succinate dehydrogenase cytochrome b subunit signature 2.DHSC_ECOLI84-97  1C:84-97
54FE4S_FER_2PS51379 4Fe-4S ferredoxin-type iron-sulfur binding domain profile.SDHB_ECOLI139-169  1B:139-169
64FE4S_FER_1PS00198 4Fe-4S ferredoxin-type iron-sulfur binding region signature.SDHB_ECOLI149-160  1B:149-160
Biological Unit 1 (6, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
12FE2S_FER_2PS51085 2Fe-2S ferredoxin-type iron-sulfur binding domain profile.SDHB_ECOLI8-97  1B:8-97
2SDH_CYT_1PS01000 Succinate dehydrogenase cytochrome b subunit signature 1.DHSC_ECOLI9-33  1C:9-33
3FRD_SDH_FAD_BINDINGPS00504 Fumarate reductase / succinate dehydrogenase FAD-binding site.SDHA_ECOLI43-52  1A:43-52
4SDH_CYT_2PS01001 Succinate dehydrogenase cytochrome b subunit signature 2.DHSC_ECOLI84-97  1C:84-97
54FE4S_FER_2PS51379 4Fe-4S ferredoxin-type iron-sulfur binding domain profile.SDHB_ECOLI139-169  1B:139-169
64FE4S_FER_1PS00198 4Fe-4S ferredoxin-type iron-sulfur binding region signature.SDHB_ECOLI149-160  1B:149-160
Biological Unit 2 (6, 18)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
12FE2S_FER_2PS51085 2Fe-2S ferredoxin-type iron-sulfur binding domain profile.SDHB_ECOLI8-97  3B:8-97
2SDH_CYT_1PS01000 Succinate dehydrogenase cytochrome b subunit signature 1.DHSC_ECOLI9-33  3C:9-33
3FRD_SDH_FAD_BINDINGPS00504 Fumarate reductase / succinate dehydrogenase FAD-binding site.SDHA_ECOLI43-52  3A:43-52
4SDH_CYT_2PS01001 Succinate dehydrogenase cytochrome b subunit signature 2.DHSC_ECOLI84-97  3C:84-97
54FE4S_FER_2PS51379 4Fe-4S ferredoxin-type iron-sulfur binding domain profile.SDHB_ECOLI139-169  3B:139-169
64FE4S_FER_1PS00198 4Fe-4S ferredoxin-type iron-sulfur binding region signature.SDHB_ECOLI149-160  3B:149-160
Biological Unit 3 (6, 12)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
12FE2S_FER_2PS51085 2Fe-2S ferredoxin-type iron-sulfur binding domain profile.SDHB_ECOLI8-97  2B:8-97
2SDH_CYT_1PS01000 Succinate dehydrogenase cytochrome b subunit signature 1.DHSC_ECOLI9-33  2C:9-33
3FRD_SDH_FAD_BINDINGPS00504 Fumarate reductase / succinate dehydrogenase FAD-binding site.SDHA_ECOLI43-52  2A:43-52
4SDH_CYT_2PS01001 Succinate dehydrogenase cytochrome b subunit signature 2.DHSC_ECOLI84-97  2C:84-97
54FE4S_FER_2PS51379 4Fe-4S ferredoxin-type iron-sulfur binding domain profile.SDHB_ECOLI139-169  2B:139-169
64FE4S_FER_1PS00198 4Fe-4S ferredoxin-type iron-sulfur binding region signature.SDHB_ECOLI149-160  2B:149-160

(-) Exons   (0, 0)

(no "Exon" information available for 1NEN)

(-) 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:588
 aligned with SDHA_ECOLI | P0AC41 from UniProtKB/Swiss-Prot  Length:588

    Alignment length:588
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       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       570       580        
           SDHA_ECOLI     1 MKLPVREFDAVVIGAGGAGMRAALQISQSGQTCALLSKVFPTRSHTVSAQGGITVALGNTHEDNWEWHMYDTVKGSDYIGDQDAIEYMCKTGPEAILELEHMGLPFSRLDDGRIYQRPFGGQSKNFGGEQAARTAAAADRTGHALLHTLYQQNLKNHTTIFSEWYALDLVKNQDGAVVGCTALCIETGEVVYFKARATVLATGGAGRIYQSTTNAHINTGDGVGMAIRAGVPVQDMEMWQFHPTGIAGAGVLVTEGCRGEGGYLLNKHGERFMERYAPNAKDLAGRDVVARSIMIEIREGRGCDGPWGPHAKLKLDHLGKEVLESRLPGILELSRTFAHVDPVKEPIPVIPTCHYMMGGIPTKVTGQALTVNEKGEDVVVPGLFAVGEIACVSVHGANRLGGNSLLDLVVFGRAAGLHLQESIAEQGALRDASESDVEASLDRLNRWNNNRNGEDPVAIRKALQECMQHNFSVFREGDAMAKGLEQLKVIRERLKNARLDDTSSEFNTQRVECLELDNLMETAYATAVSANFRTESRGAHSRFDFPDRDDENWLCHSLYLPESESMTRRSVNMEPKLRPAFPPKIRTY 588
               SCOP domains d1nena2 A:1-235,A:356-450 Succinate dehydogenase                                                                                                                                                                                           d1nena3 A:236-355 Succinate dehydogenase                                                                                d1nena2 A:1-235,A:356-450 Succinate dehydogenase                                               d1nena1 A:451-588 Succinate dehydogenase                                                                                                   SCOP domains
               CATH domains 1nenA01 A:1-245,A:351-430  [code=3.50.50.60, no name defined]                                                                                                                                                                                        ---------------------------------------------------------------------------------------------------------1nenA01 A:1-245,A:351-430  [code=3.50.50.60, no name defined]                   1nenA03 A:431-547  [code=1.20.58.100, no name defined]                                                               1nenA04 A:548-588                         CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ....eeee..eee..hhhhhhhhhhhhhh....eee...hhhhhhhhhh...ee.........hhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhh....................ee.........ee....hhhhhhhhhhhhhhhhh..eee..eeeeeeee.....eeeeeeee.....eeeeee..eee....hhhhh..........hhhhhhhhh....ee....eeeeeeee........hhhhhh..eee.....hhhhhhh..hhhhhhhhhhhhhhhhhhhh...........eeee....hhhhhhhhhhhhhhhhhhhhh.......eeeeeeeeee...ee.....eeeee.....eeeeeeeee....ee..........hhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh..eehhhhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhhhhhhhhh.......ee...............ee.........ee.................. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (2) ------------------------------------------FRD_SDH_FA-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1nen A   1 MKLPVREFDAVVIGAGGAGMRAALQISQSGQTCALLSKVFPTRSHTVSAQGGITVALGNTHEDNWEWHMYDTVKGSDYIGDQDAIEYMCKTGPEAILELEHMGLPFSRLDDGRIYQRPFGGQSKNFGGEQAARTAAAADRTGHALLHTLYQQNLKNHTTIFSEWYALDLVKNQDGAVVGCTALCIETGEVVYFKARATVLATGGAGRIYQSTTNAHINTGDGVGMAIRAGVPVQDMEMWQFHPTGIAGAGVLVTEGCRGEGGYLLNKHGERFMERYAPNAKDLAGRDVVARSIMIEIREGRGCDGPWGPHAKLKLDHLGKEVLESRLPGILELSRTFAHVDPVKEPIPVIPTCHYMMGGIPTKVTGQALTVNEKGEDVVVPGLFAVGEIACVSVHGANRLGGNSLLDLVVFGRAAGLHLQESIAEQGALRDASESDVEASLDRLNRWNNNRNGEDPVAIRKALQECMQHNFSVFREGDAMAKGLEQLKVIRERLKNARLDDTSSEFNTQRVECLELDNLMETAYATAVSANFRTESRGAHSRFDFPDRDDENWLCHSLYLPESESMTRRSVNMEPKLRPAFPPKIRTY 588
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       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       570       580        

Chain B from PDB  Type:PROTEIN  Length:238
 aligned with SDHB_ECOLI | P07014 from UniProtKB/Swiss-Prot  Length:238

    Alignment length:238
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230        
           SDHB_ECOLI     1 MRLEFSIYRYNPDVDDAPRMQDYTLEADEGRDMMLLDALIQLKEKDPSLSFRRSCREGVCGSDGLNMNGKNGLACITPISALNQPGKKIVIRPLPGLPVIRDLVVDMGQFYAQYEKIKPYLLNNGQNPPAREHLQMPEQREKLDGLYECILCACCSTSCPSFWWNPDKFIGPAGLLAAYRFLIDSRDTETDSRLDGLSDAFSVFRCHSIMNCVSVCPKGLNPTRAIGHIKSMLLQRNA 238
               SCOP domains d1nenb2 B:1-106 Succinate dehydogenase iron-sulfur protein, N-terminal domain                             d1nenb1 B:107-238 Succinate dehydogenase                                                                                             SCOP domains
               CATH domains 1nenB01 B:1-106  [code=3.10.20.30, no name defined]                                                       1nenB02 B:107-238 Fumarate Reductase Iron-sulfur Protein; Chain B, domain 2                                                          CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeee.........eeeeee.........hhhhhhhhhhhhh.................eeee..eeee...............eeee......eee..ee.hhhhhhhhhhh..................hhhhhhh..........hhhhhhhhhhhhh.....hhhhhhhhhhhhh.....hhhhhhhhh............hhhhhhh....hhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -------2FE2S_FER_2  PDB: B:8-97 UniProt: 8-97                                                    -----------------------------------------4FE4S_FER_2  PDB: B:139-169    --------------------------------------------------------------------- PROSITE (1)
                PROSITE (2) ----------------------------------------------------------------------------------------------------------------------------------------------------4FE4S_FER_1 ------------------------------------------------------------------------------ PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1nen B   1 MRLEFSIYRYNPDVDDAPRMQDYTLEADEGRDMMLLDALIQLKEKDPSLSFRRSCREGVCGSDGLNMNGKNGLACITPISALNQPGKKIVIRPLPGLPVIRDLVVDMGQFYAQYEKIKPYLLNNGQNPPAREHLQMPEQREKLDGLYECILCACCSTSCPSFWWNPDKFIGPAGLLAAYRFLIDSRDTETDSRLDGLSDAFSVFRCHSIMNCVSVCPKGLNPTRAIGHIKSMLLQRNA 238
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230        

Chain C from PDB  Type:PROTEIN  Length:129
 aligned with DHSC_ECOLI | P69054 from UniProtKB/Swiss-Prot  Length:129

    Alignment length:129
                                    10        20        30        40        50        60        70        80        90       100       110       120         
           DHSC_ECOLI     1 MIRNVKKQRPVNLDLQTIRFPITAIASILHRVSGVITFVAVGILLWLLGTSLSSPEGFEQASAIMGSFFVKFIMWGILTALAYHVVVGIRHMMMDFGYLEETFEAGKRSAKISFVITVVLSLLAGVLVW 129
               SCOP domains d1nenc_ C: Succinate dehydrogenase subunit SdhC                                                                                   SCOP domains
               CATH domains 1nenC00 C:1-129 Fumarate reductase respiratory complex transmembrane subunits                                                     CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............hhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) --------SDH_CYT_1  PDB: C:9-33   --------------------------------------------------SDH_CYT_2     -------------------------------- PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1nen C   1 MIRNVKKQRPVNLDLQTIRFPITAIASILHRVSGVITFVAVGILLWLLGTSLSSPEGFEQASAIMGSFFVKFIMWGILTALAYHVVVGIRHMMMDFGYLEETFEAGKRSAKISFVITVVLSLLAGVLVW 129
                                    10        20        30        40        50        60        70        80        90       100       110       120         

Chain D from PDB  Type:PROTEIN  Length:113
 aligned with DHSD_ECOLI | P0AC44 from UniProtKB/Swiss-Prot  Length:115

    Alignment length:113
                                    12        22        32        42        52        62        72        82        92       102       112   
           DHSD_ECOLI     3 SNASALGRNGVHDFILVRATAIVLTLYIIYMVGFFATSGELTYEVWIGFFASAFTKVFTLLALFSILIHAWIGMWQVLTDYVKPLALRLMLQLVIVVALVVYVIYGFVVVWGV 115
               SCOP domains d1nend_ D: Succinate dehydrogenase subunit SdhD                                                                   SCOP domains
               CATH domains --------1nenD01 D:11-115 Fumarate reductase respiratory complex transmembrane subunits                            CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------- Transcript
                 1nen D   3 SNASALGRNGVHDFILVRATAIVLTLYIIYMVGFFATSGELTYEVWIGFFASAFTKVFTLLALFSILIHAWIGMWQVLTDYVKPLALRLMLQLVIVVALVVYVIYGFVVVWGV 115
                                    12        22        32        42        52        62        72        82        92       102       112   

   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  (7, 7)

Asymmetric Unit

(-) CATH Domains  (6, 7)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1NEN)

(-) Gene Ontology  (24, 55)

Asymmetric Unit(hide GO term definitions)
Chain A   (SDHA_ECOLI | P0AC41)
molecular function
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0050660    flavin adenine dinucleotide binding    Interacting selectively and non-covalently with FAD, flavin-adenine dinucleotide, the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes, in either the oxidized form, FAD, or the reduced form, FADH2.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0016627    oxidoreductase activity, acting on the CH-CH group of donors    Catalysis of an oxidation-reduction (redox) reaction in which a CH-CH group acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0008177    succinate dehydrogenase (ubiquinone) activity    Catalysis of the reaction: succinate + ubiquinone = fumarate + ubiquinol.
    GO:0000104    succinate dehydrogenase activity    Catalysis of the reaction: succinate + acceptor = fumarate + reduced acceptor.
biological process
    GO:0009060    aerobic respiration    The enzymatic release of energy from inorganic and organic compounds (especially carbohydrates and fats) which requires oxygen as the terminal electron acceptor.
    GO:0022900    electron transport chain    A process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0006099    tricarboxylic acid cycle    A nearly universal metabolic pathway in which the acetyl group of acetyl coenzyme A is effectively oxidized to two CO2 and four pairs of electrons are transferred to coenzymes. The acetyl group combines with oxaloacetate to form citrate, which undergoes successive transformations to isocitrate, 2-oxoglutarate, succinyl-CoA, succinate, fumarate, malate, and oxaloacetate again, thus completing the cycle. In eukaryotes the tricarboxylic acid is confined to the mitochondria. See also glyoxylate cycle.
cellular component
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0045282    plasma membrane succinate dehydrogenase complex    A multimeric complex which consists of flavoprotein (subunit A ; InterPro:IPR003952), iron-sulfur protein (subunit B) and membrane-bound cytochrome b560 (subunit C; InterPro:IPR000701). In some Archaea, the membrane-bound subunits (C or C and D) do not necessarily contain heme. Membrane-bound subunits can bind/react with quinones. Examples of this component are found in Bacterial species.

Chain B   (SDHB_ECOLI | P07014)
molecular function
    GO:0051537    2 iron, 2 sulfur cluster binding    Interacting selectively and non-covalently with a 2 iron, 2 sulfur (2Fe-2S) cluster; this cluster consists of two iron atoms, with two inorganic sulfur atoms found between the irons and acting as bridging ligands.
    GO:0051538    3 iron, 4 sulfur cluster binding    Interacting selectively and non-covalently with a 3 iron, 4 sulfur (3Fe-4S) cluster; this cluster consists of three iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands. It is essentially a 4Fe-4S cluster with one iron missing.
    GO:0051539    4 iron, 4 sulfur cluster binding    Interacting selectively and non-covalently with a 4 iron, 4 sulfur (4Fe-4S) cluster; this cluster consists of four iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands.
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0051536    iron-sulfur cluster binding    Interacting selectively and non-covalently with an iron-sulfur cluster, a combination of iron and sulfur atoms.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0008177    succinate dehydrogenase (ubiquinone) activity    Catalysis of the reaction: succinate + ubiquinone = fumarate + ubiquinol.
biological process
    GO:0009060    aerobic respiration    The enzymatic release of energy from inorganic and organic compounds (especially carbohydrates and fats) which requires oxygen as the terminal electron acceptor.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0006099    tricarboxylic acid cycle    A nearly universal metabolic pathway in which the acetyl group of acetyl coenzyme A is effectively oxidized to two CO2 and four pairs of electrons are transferred to coenzymes. The acetyl group combines with oxaloacetate to form citrate, which undergoes successive transformations to isocitrate, 2-oxoglutarate, succinyl-CoA, succinate, fumarate, malate, and oxaloacetate again, thus completing the cycle. In eukaryotes the tricarboxylic acid is confined to the mitochondria. See also glyoxylate cycle.
cellular component
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Chain C   (DHSC_ECOLI | P69054)
molecular function
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0020037    heme binding    Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016627    oxidoreductase activity, acting on the CH-CH group of donors    Catalysis of an oxidation-reduction (redox) reaction in which a CH-CH group acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor.
    GO:0008177    succinate dehydrogenase (ubiquinone) activity    Catalysis of the reaction: succinate + ubiquinone = fumarate + ubiquinol.
    GO:0000104    succinate dehydrogenase activity    Catalysis of the reaction: succinate + acceptor = fumarate + reduced acceptor.
    GO:0048039    ubiquinone binding    Interacting selectively and non-covalently with ubiquinone, a quinone derivative with a tail of isoprene units.
biological process
    GO:0009060    aerobic respiration    The enzymatic release of energy from inorganic and organic compounds (especially carbohydrates and fats) which requires oxygen as the terminal electron acceptor.
    GO:0017004    cytochrome complex assembly    The aggregation, arrangement and bonding together of a cytochrome complex. A cytochrome complex is a protein complex in which at least one of the proteins is a cytochrome, i.e. a heme-containing protein involved in catalysis of redox reactions.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0006099    tricarboxylic acid cycle    A nearly universal metabolic pathway in which the acetyl group of acetyl coenzyme A is effectively oxidized to two CO2 and four pairs of electrons are transferred to coenzymes. The acetyl group combines with oxaloacetate to form citrate, which undergoes successive transformations to isocitrate, 2-oxoglutarate, succinyl-CoA, succinate, fumarate, malate, and oxaloacetate again, thus completing the cycle. In eukaryotes the tricarboxylic acid is confined to the mitochondria. See also glyoxylate cycle.
cellular component
    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:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0045281    succinate dehydrogenase complex    A multimeric complex which consists of flavoprotein (subunit A ; InterPro:IPR003952), iron-sulfur protein (subunit B) and membrane-bound cytochrome b560 (subunit C; InterPro:IPR000701). In some Archaea, the membrane-bound subunits (C or C and D) do not necessarily contain heme. Membrane-bound subunits can bind or react with quinones.

Chain D   (DHSD_ECOLI | P0AC44)
molecular function
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0020037    heme binding    Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016627    oxidoreductase activity, acting on the CH-CH group of donors    Catalysis of an oxidation-reduction (redox) reaction in which a CH-CH group acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor.
    GO:0000104    succinate dehydrogenase activity    Catalysis of the reaction: succinate + acceptor = fumarate + reduced acceptor.
biological process
    GO:0009060    aerobic respiration    The enzymatic release of energy from inorganic and organic compounds (especially carbohydrates and fats) which requires oxygen as the terminal electron acceptor.
    GO:0017004    cytochrome complex assembly    The aggregation, arrangement and bonding together of a cytochrome complex. A cytochrome complex is a protein complex in which at least one of the proteins is a cytochrome, i.e. a heme-containing protein involved in catalysis of redox reactions.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0006099    tricarboxylic acid cycle    A nearly universal metabolic pathway in which the acetyl group of acetyl coenzyme A is effectively oxidized to two CO2 and four pairs of electrons are transferred to coenzymes. The acetyl group combines with oxaloacetate to form citrate, which undergoes successive transformations to isocitrate, 2-oxoglutarate, succinyl-CoA, succinate, fumarate, malate, and oxaloacetate again, thus completing the cycle. In eukaryotes the tricarboxylic acid is confined to the mitochondria. See also glyoxylate cycle.
cellular component
    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:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

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 Related Entries

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

UniProtKB/Swiss-Prot
        DHSC_ECOLI | P690541nek 2acz 2ad0 2wdq 2wdr 2wdv 2wp9 2ws3 2wu2 2wu5
        DHSD_ECOLI | P0AC441nek 2acz 2ad0 2wdq 2wdr 2wdv 2wp9 2ws3 2wu2 2wu5
        SDHA_ECOLI | P0AC411nek 2acz 2ad0 2wdq 2wdr 2wdv 2wp9 2ws3 2wu2 2wu5
        SDHB_ECOLI | P070141nek 2acz 2ad0 2wdq 2wdr 2wdv 2wp9 2ws3 2wu2 2wu5

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1NEN)