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(-) Description

Title :  E. COLI FLAVODOXIN AT 2.6 ANGSTROMS RESOLUTION
 
Authors :  D. M. Hoover, M. L. Ludwig
Date :  07 Apr 97  (Deposition) - 10 Dec 97  (Release) - 16 Nov 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.60
Chains :  Asym./Biol. Unit :  A
Keywords :  Electron Transport, Reductive Activation, Flavodoxin, Flavoprotein (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

(-) Compounds

Molecule 1 - FLAVODOXIN
    Cellular Location: CYTOPLASM
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PDH01
    Expression System Taxid: 562
    Gene: FLDA
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Strain: DHALPHA

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1CA1Ligand/IonCALCIUM ION
2FMN1Ligand/IonFLAVIN MONONUCLEOTIDE

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:93 , ARG A:148 , HOH A:185 , HOH A:219 , HOH A:231BINDING SITE FOR RESIDUE CA A 178
2AC2SOFTWARESER 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:186 , HOH A:236BINDING SITE FOR RESIDUE FMN A 177
3FMNUNKNOWNFMN A:177FMN BINDING SITE.

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1AHN)

(-) 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:169
 aligned with FLAV_ECOLI | P61949 from UniProtKB/Swiss-Prot  Length:176

    Alignment length:169
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161         
           FLAV_ECOLI     2 AITGIFFGSDTGNTENIAKMIQKQLGKDVADVHDIAKSSKEDLEAYDILLLGIPTWYYGEAQCDWDDFFPTLEEIDFNGKLVALFGCGDQEDYAEYFCDALGTIRDIIEPRGATIVGHWPTAGYHFEASKGLADDDHFVGLAIDEDRQPELTAERVEKWVKQISEELHL 170
               SCOP domains d1ahna_ A: Flavodoxin                                                                                                                                                     SCOP domains
               CATH domains 1ahnA00 A:2-170  [code=3.40.50.360, no name defined]                                                                                                                      CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee....hhhhhhhhhhhhh....eeeeehhh..hhhhh...eeeeee.........hhhhhhhhhhhh.....eeeeeeee......hhh..hhhhhhhhhhh...eee.........................eee.....hhhhhhhhhhhhhhhhhhh.. 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
                 1ahn A   2 AITGIFFGSDTGNTENIAKMIQKQLGKDVADVHDIAKSSKEDLEAYDILLLGIPTWYYGEAQCDWDDFFPTLEEIDFNGKLVALFGCGDQEDYAEYFCDALGTIRDIIEPRGATIVGHWPTAGYHFEASKGLADDDHFVGLAIDEDRQPELTAERVEKWVKQISEELHL 170
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161
   Legend:   → Mismatch (orange background)
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  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (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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  1ahn
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 Related Entries

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

UniProtKB/Swiss-Prot
        FLAV_ECOLI | P61949: 1ag9 2mok

(-) Related Entries Specified in the PDB File

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