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(-) Description

Title :  ENERGETICS OF A HYDROGEN BOND (CHARGED AND NEUTRAL) AND OF A CATION-PI INTERACTION IN APOFLAVODOXIN
 
Authors :  A. Romero, J. Fernandez-Recio, J. Sancho
Date :  12 May 99  (Deposition) - 20 May 99  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Flavodoxin, Electron Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. Fernandez-Recio, A. Romero, J. Sancho
Energetics Of A Hydrogen Bond (Charged And Neutral) And Of Cation-Pi Interaction In Apoflavodoxin.
J. Mol. Biol. V. 290 319 1999
PubMed-ID: 10388575  |  Reference-DOI: 10.1006/JMBI.1999.2863
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN (FLAVODOXIN)
    Cell Line: E.COLI JM109
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PTRC99A
    Expression System Strain: TG1
    Expression System Taxid: 562
    Organism Scientific: NOSTOC SP.
    Organism Taxid: 1168
    Strain: PCC 7119

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1SO41Ligand/IonSULFATE ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR A:10 , GLN A:11 , THR A:12 , GLY A:13 , LYS A:14 , THR A:15 , PRO A:55 , TRP A:57 , THR A:88 , HOH A:556BINDING SITE FOR RESIDUE SO4 A 700

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FLAVODOXIN_LIKEPS50902 Flavodoxin-like domain profile.FLAV_NOSSO5-165  1A:4-164
2FLAVODOXINPS00201 Flavodoxin signature.FLAV_NOSSO7-23  1A:6-22

(-) Exons   (0, 0)

(no "Exon" information available for 1QHE)

(-) 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:168
 aligned with FLAV_NOSSO | P0A3E0 from UniProtKB/Swiss-Prot  Length:170

    Alignment length:168
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162        
           FLAV_NOSSO     3 KKIGLFYGTQTGKTESVAEIIRDEFGNDVVTLHDVSQAEVTDLNDYQYLIIGCPTWNIGELQSDWEGLYSELDDVDFNGKLVAYFGTGDQIGYADNFQDAIGILEEKISQRGGKTVGYWSTDGYDFNDSKALRNGKFVGLALDEDNQSDLTDDRIKSWVAQLKSEFGL 170
               SCOP domains d1qhea_ A: Flavodoxin                                                                                                                                                    SCOP domains
               CATH domains 1qheA00 A:2-169  [code=3.40.50.360, no name defined]                                                                                                                     CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeeee.....hhhhhhhhhhhhh....eeeeehhh..hhhhhh..eeeee..........hhhhhhhhhhhh......eeeeeee...........hhhhhhhhhhhh.............................eee........hhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) --FLAVODOXIN_LIKE  PDB: A:4-164 UniProt: 5-165                                                                                                                     ----- PROSITE (1)
                PROSITE (2) ----FLAVODOXIN       --------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1qhe A   2 KKIGLFYGTQTGKTESVAEIIRDEFGNDVVTLHDVSQAEVTDLNDYQYLIIGCPTWNIGELQSDWEGLYSELDDVDFNGKLVAYFGTGDQIGYADNFQDAIGILEEKISQRGGKTVGYWSTDGYDFNDSKALRNGKFVGLALDEDNQSDLTDDRIKSWVAQLKSEFGL 169
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161
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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 1QHE)

(-) Gene Ontology  (5, 5)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (FLAV_NOSSO | P0A3E0)
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:0010106    cellular response to iron ion starvation    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of deprivation of iron ions.
    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.

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 Related Entries

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

UniProtKB/Swiss-Prot
        FLAV_NOSSO | P0A3E0: 1dx9 1ftg 1obo 1obv 2kqu 2v5u 2v5v 3esx 3esy 3esz

(-) Related Entries Specified in the PDB File

1ftg STRUCTURE OF APOFLAVODOXIN AT PH 6.0