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(-) Description

Title :  FLAVODOXINS THAT ARE REQUIRED FOR ENZYME ACTIVATION: THE STRUCTURE OF OXIDIZED FLAVODOXIN FROM ESCHERICHIA COLI AT 1.8 ANGSTROMS RESOLUTION.
 
Authors :  D. M. Hoover, M. L. Ludwig
Date :  04 Apr 97  (Deposition) - 24 Dec 97  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.80
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Electron Transport, Reductive Activation, Flavodoxin, Escherichia Coli (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  D. M. Hoover, M. L. Ludwig
A Flavodoxin That Is Required For Enzyme Activation: The Structure Of Oxidized Flavodoxin From Escherichia Coli At 1. 8 A Resolution.
Protein Sci. V. 6 2525 1997
PubMed-ID: 9416602
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - FLAVODOXIN
    Cellular LocationCYTOPLASM
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPDH01
    Expression System Taxid562
    GeneFLDA
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    StrainDHALPHA

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 14)

Asymmetric/Biological Unit (5, 14)
No.NameCountTypeFull Name
1BTB2Ligand/Ion2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
2CA4Ligand/IonCALCIUM ION
3CL2Ligand/IonCHLORIDE ION
4FMN2Ligand/IonFLAVIN MONONUCLEOTIDE
5NA4Ligand/IonSODIUM ION

(-) Sites  (16, 16)

Asymmetric Unit (16, 16)
No.NameEvidenceResiduesDescription
01AC1SOFTWARETYR A:59 , GLU A:61 , HOH A:406 , HOH A:407 , ASP B:67 , HOH B:1001BINDING SITE FOR RESIDUE CA A 200
02AC2SOFTWAREASP A:67 , HOH A:408 , TYR B:59 , GLU B:61 , HOH B:1002 , HOH B:1003BINDING SITE FOR RESIDUE CA B 1000
03AC3SOFTWAREBTB B:301 , HOH B:1004 , HOH B:1005BINDING SITE FOR RESIDUE CA B 300
04AC4SOFTWAREBTB A:351 , HOH A:409 , HOH A:410 , HOH A:411BINDING SITE FOR RESIDUE CA A 350
05AC5SOFTWAREHOH A:474 , ALA B:62 , HOH B:1053 , HOH B:1073BINDING SITE FOR RESIDUE CL B 404
06AC6SOFTWAREALA A:62 , HOH A:422 , HOH A:512 , HOH A:538BINDING SITE FOR RESIDUE CL A 405
07AC7SOFTWAREGLU A:61 , HOH A:474 , HOH A:512 , ASP B:67 , HOH B:1116 , HOH B:1129BINDING SITE FOR RESIDUE NA A 400
08AC8SOFTWAREASP A:67 , HOH A:484 , GLU B:61 , HOH B:1052 , HOH B:1074 , HOH B:1151BINDING SITE FOR RESIDUE NA A 401
09AC9SOFTWAREASP B:43 , GLU B:96 , HOH B:1070 , HOH B:1075 , HOH B:1076 , HOH B:1085 , HOH B:1158BINDING SITE FOR RESIDUE NA B 402
10BC1SOFTWAREALA B:46 , HOH B:1071 , HOH B:1091 , HOH B:1152 , HOH B:1156 , HOH B:1167BINDING SITE FOR RESIDUE NA B 403
11BC2SOFTWARESER A:10 , ASP A:11 , THR A:12 , GLY A:13 , ASN A:14 , THR A:15 , PRO A:55 , THR A:56 , TRP A:57 , TYR A:58 , TYR A:59 , GLY A:60 , CYS A:88 , GLY A:89 , ASP A:90 , TYR A:94 , TYR A:97 , PHE A:98 , CYS A:99 , ASP A:147 , HOH A:440 , HOH A:446BINDING SITE FOR RESIDUE FMN A 177
12BC3SOFTWARESER B:10 , ASP B:11 , THR B:12 , GLY B:13 , ASN B:14 , THR B:15 , PRO B:55 , THR B:56 , TRP B:57 , TYR B:58 , TYR B:59 , GLY B:60 , CYS B:88 , GLY B:89 , ASP B:90 , TYR B:94 , TYR B:97 , PHE B:98 , CYS B:99 , ASP B:147 , HOH B:1006 , HOH B:1028BINDING SITE FOR RESIDUE FMN B 177
13BC4SOFTWAREARG B:148 , GLU B:151 , CA B:300 , HOH B:1004 , HOH B:1005 , HOH B:1162BINDING SITE FOR RESIDUE BTB B 301
14BC5SOFTWAREASN A:17 , GLU A:146 , CA A:350 , HOH A:409 , HOH A:410 , HOH A:411 , HOH A:471 , HOH A:475 , SER B:10 , ASP B:11 , GLY B:13 , GLU B:16 , HOH B:1032 , HOH B:1041BINDING SITE FOR RESIDUE BTB A 351
15FMAUNKNOWNFMN A:177FMN BINDING SITE.
16FMBUNKNOWNFMN B:177FMN BINDING SITE.

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1AG9)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1AG9)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1AG9)

(-) PROSITE Motifs  (2, 4)

Asymmetric/Biological Unit (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FLAVODOXIN_LIKEPS50902 Flavodoxin-like domain profile.FLAV_ECOLI4-165
 
  2A:4-165
B:4-165
2FLAVODOXINPS00201 Flavodoxin signature.FLAV_ECOLI6-22
 
  2A:6-22
B:6-22

(-) Exons   (0, 0)

(no "Exon" information available for 1AG9)

(-) 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:175
 aligned with FLAV_ECOLI | P61949 from UniProtKB/Swiss-Prot  Length:176

    Alignment length:175
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171     
           FLAV_ECOLI     2 AITGIFFGSDTGNTENIAKMIQKQLGKDVADVHDIAKSSKEDLEAYDILLLGIPTWYYGEAQCDWDDFFPTLEEIDFNGKLVALFGCGDQEDYAEYFCDALGTIRDIIEPRGATIVGHWPTAGYHFEASKGLADDDHFVGLAIDEDRQPELTAERVEKWVKQISEELHLDEILNA 176
               SCOP domains d1ag9a_ A: Flavodoxin                                                                                                                                                           SCOP domains
               CATH domains 1ag9A00 A:2-176  [code=3.40.50.360, no name defined]                                                                                                                            CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee....hhhhhhhhhhhhh....eeeeehhh..hhhhh...eeeeee.........hhhhhhhhhhhh......eeeeeee...........hhhhhhhhhh.....eee........................eee.....hhhhhhhhhhhhhhhhhh..hhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) --FLAVODOXIN_LIKE  PDB: A:4-165 UniProt: 4-165                                                                                                                      ----------- PROSITE (1)
                PROSITE (2) ----FLAVODOXIN       ---------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ag9 A   2 AITGIFFGSDTGNTENIAKMIQKQLGKDVADVHDIAKSSKEDLEAYDILLLGIPTWYYGEAQCDWDDFFPTLEEIDFNGKLVALFGCGDQEDYAEYFCDALGTIRDIIEPRGATIVGHWPTAGYHFEASKGLADDDHFVGLAIDEDRQPELTAERVEKWVKQISEELHLDEILNA 176
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171     

Chain B from PDB  Type:PROTEIN  Length:175
 aligned with FLAV_ECOLI | P61949 from UniProtKB/Swiss-Prot  Length:176

    Alignment length:175
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171     
           FLAV_ECOLI     2 AITGIFFGSDTGNTENIAKMIQKQLGKDVADVHDIAKSSKEDLEAYDILLLGIPTWYYGEAQCDWDDFFPTLEEIDFNGKLVALFGCGDQEDYAEYFCDALGTIRDIIEPRGATIVGHWPTAGYHFEASKGLADDDHFVGLAIDEDRQPELTAERVEKWVKQISEELHLDEILNA 176
               SCOP domains d1ag9b_ B: Flavodoxin                                                                                                                                                           SCOP domains
               CATH domains 1ag9B00 B:2-176  [code=3.40.50.360, no name defined]                                                                                                                            CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeee.....hhhhhhhhhhhhh....eeeeehhh..hhhhh...eeeee..........hhhhhhhhhhhh......eeeeeee...........hhhhhhhhhh.....eee........................eee.....hhhhhhhhhhhhhhhhhh..hhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) --FLAVODOXIN_LIKE  PDB: B:4-165 UniProt: 4-165                                                                                                                      ----------- PROSITE (1)
                PROSITE (2) ----FLAVODOXIN       ---------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ag9 B   2 AITGIFFGSDTGNTENIAKMIQKQLGKDVADVHDIAKSSKEDLEAYDILLLGIPTWYYGEAQCDWDDFFPTLEEIDFNGKLVALFGCGDQEDYAEYFCDALGTIRDIIEPRGATIVGHWPTAGYHFEASKGLADDDHFVGLAIDEDRQPELTAERVEKWVKQISEELHLDEILNA 176
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171     

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1AG9)

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (FLAV_ECOLI | P61949)
molecular function
    GO:0010181    FMN binding    Interacting selectively and non-covalently with flavin mono nucleotide. Flavin mono nucleotide (FMN) is the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes.
    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: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).
biological process
    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.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

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 Related Entries

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

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        FLAV_ECOLI | P619491ahn 2mok

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