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(-) Description

Title :  MOLECULAR STRUCTURE OF THE OXIDIZED, RECOMBINANT, HETEROCYST (2FE-2S) FERREDOXIN FROM ANABAENA 7120 DETERMINED TO 1.7 ANGSTROMS RESOLUTION
 
Authors :  B. L. Jacobson, Y. K. Chae, J. L. Markley, I. Rayment, H. M. Holden
Date :  14 Apr 93  (Deposition) - 31 May 94  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.70
Chains :  Asym./Biol. Unit :  A
Keywords :  Electron Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  B. L. Jacobson, Y. K. Chae, J. L. Markley, I. Rayment, H. M. Holden
Molecular Structure Of The Oxidized, Recombinant, Heterocys [2Fe-2S] Ferredoxin From Anabaena 7120 Determined To 1. 7-A Resolution.
Biochemistry V. 32 6788 1993
PubMed-ID: 8329401  |  Reference-DOI: 10.1021/BI00077A033

(-) Compounds

Molecule 1 - HETEROCYST [2FE-2S] FERREDOXIN
    ChainsA
    EngineeredYES
    Organism ScientificNOSTOC SP.
    Organism Taxid103690
    StrainPCC 7120

 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
1FES1Ligand/IonFE2/S2 (INORGANIC) CLUSTER

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESER A:40 , CYS A:41 , HIS A:42 , GLY A:44 , SER A:45 , CYS A:46 , CYS A:49 , CYS A:79BINDING SITE FOR RESIDUE FES A 99

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
12FE2S_FER_2PS51085 2Fe-2S ferredoxin-type iron-sulfur binding domain profile.FERH_NOSS14-96  1A:3-95
22FE2S_FER_1PS00197 2Fe-2S ferredoxin-type iron-sulfur binding region signature.FERH_NOSS142-50  1A:41-49

(-) Exons   (0, 0)

(no "Exon" information available for 1FRD)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
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SAPs(SNPs) PROSITE motifs Exons
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Chain A from PDB  Type:PROTEIN  Length:98
 aligned with FERH_NOSS1 | P11053 from UniProtKB/Swiss-Prot  Length:99

    Alignment length:98
                                    11        21        31        41        51        61        71        81        91        
            FERH_NOSS1    2 ASYQVRLINKKQDIDTTIEIDEETTILDGAEENGIELPFSCHSGSCSSCVGKVVEGEVDQSDQIFLDDEQMGKGFALLCVTYPRSNCTIKTHQEPYLA 99
               SCOP domains d1frda_ A: 2Fe-2S ferredoxin                                                                       SCOP domains
               CATH domains 1frdA00 A:1-98  [code=3.10.20.30, no name defined]                                                 CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeeeee....eeeeeeee...hhhhhhhhh................eeeeee..ee.......hhhhhhh.eee.hhhee...eeee..hhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) --2FE2S_FER_2  PDB: A:3-95 UniProt: 4-96                                                       --- PROSITE (1)
                PROSITE (2) ----------------------------------------2FE2S_FER------------------------------------------------- PROSITE (2)
                 Transcript -------------------------------------------------------------------------------------------------- Transcript
                  1frd A  1 ASYQVRLINKKQDIDTTIEIDEETTILDGAEENGIELPFSCHSGSCSSCVGKVVEGEVDQSDQIFLDDEQMGKGFALLCVTYPRSNCTIKTHQEPYLA 98
                                    10        20        30        40        50        60        70        80        90        

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 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (FERH_NOSS1 | P11053)
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: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.
biological process
    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:0043158    heterocyst differentiation    The process in which a relatively unspecialized cell acquires specialized features of a heterocyst, a differentiated cell in certain cyanobacteria whose purpose is to fix nitrogen.
    GO:0009399    nitrogen fixation    The process in which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes, such as ammonia, nitrate and nitrogen dioxide.
    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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