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(-) Description

Title :  CRYSTAL STRUCTURE OF NISOD D3A MUTANT AT 1.9 A
 
Authors :  S. C. Garman, A. I. Guce, R. W. Herbst, P. A. Bryngelson, D. E. Cabelli, K. A. Higgins, K. C. Ryan, M. J. Maroney
Date :  04 Feb 09  (Deposition) - 28 Apr 09  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (2x)
Keywords :  Nickel, Hexamer, Superoxide Dismutase, Nisod, Sod, Antioxidant, Metal-Binding, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. W. Herbst, A. Guce, P. A. Bryngelson, K. A. Higgins, K. C. Ryan, D. E. Cabelli, S. C. Garman, M. J. Maroney
Role Of Conserved Tyrosine Residues In Nisod Catalysis: A Case Of Convergent Evolution
Biochemistry V. 48 3354 2009
PubMed-ID: 19183068  |  Reference-DOI: 10.1021/BI802029T

(-) Compounds

Molecule 1 - SUPEROXIDE DISMUTASE [NI]
    Chains: A, B, C
    EC Number: 1.15.1.1
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET30
    Expression System Strain: BL21(DE3) PLYSS
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: NISOD (UNP RESIDUES 15 TO 131)
    Gene: 2SC7G11.16C, SCO5254, SOD1, SODN
    Mutation: YES
    Organism Scientific: STREPTOMYCES COELICOLOR
    Organism Taxid: 1902
    Synonym: NISOD, NICKEL-CONTAINING SUPEROXIDE DISMUTASE

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit : ABC
Biological Unit 1 (2x): ABC

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric Unit (1, 2)
No.NameCountTypeFull Name
1NI2Ligand/IonNICKEL (II) ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1NI-1Ligand/IonNICKEL (II) ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:1 , CYS A:2 , CYS A:6BINDING SITE FOR RESIDUE NI A 201
2AC2SOFTWAREHIS C:1 , CYS C:2 , CYS C:6BINDING SITE FOR RESIDUE NI C 203

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3G50)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric Unit
No.Residues
1Leu A:4 -Pro A:5
2Leu B:4 -Pro B:5
3Leu C:4 -Pro C:5

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3G50)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3G50)

(-) Exons   (0, 0)

(no "Exon" information available for 3G50)

(-) 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:117
 aligned with SODN_STRCO | P80735 from UniProtKB/Swiss-Prot  Length:131

    Alignment length:117
                                    24        34        44        54        64        74        84        94       104       114       124       
           SODN_STRCO    15 HCDLPCGVYDPAQARIEAESVKAVQEKMAGNDDPHFQTRATVIKEQRAELAKHHVSVLWSDYFKPPHFEKYPELHQLVNDTLKALSAAKGSKDPATGQKALDYIAQIDKIFWETKKA 131
               SCOP domains d3g50a_ A: automated matches                                                                                          SCOP domains
               CATH domains 3g50A00 A:1-117 Nickel-containing superoxide dismutase, NiSOD                                                         CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........hhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhh.hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------- Transcript
                 3g50 A   1 HCALPCGVYDPAQARIEAESVKAVQEKMAGNDDPHFQTRATVIKEQRAELAKHHVSVLWSDYFKPPHFEKYPELHQLVNDTLKALSAAKGSKDPATGQKALDYIAQIDKIFWETKKA 117
                                    10        20        30        40        50        60        70        80        90       100       110       


Chain B from PDB  Type:PROTEIN  Length:113
 aligned with SODN_STRCO | P80735 from UniProtKB/Swiss-Prot  Length:131

    Alignment length:113
                                    27        37        47        57        67        77        87        97       107       117       127   
           SODN_STRCO    18 LPCGVYDPAQARIEAESVKAVQEKMAGNDDPHFQTRATVIKEQRAELAKHHVSVLWSDYFKPPHFEKYPELHQLVNDTLKALSAAKGSKDPATGQKALDYIAQIDKIFWETKK 130
               SCOP domains d3g50b_ B: automated matches                                                                                      SCOP domains
               CATH domains 3g50B00 B:4-116 Nickel-containing superoxide dismutase, NiSOD                                                     CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhh.hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------- Transcript
                 3g50 B   4 LPCGVYDPAQARIEAESVKAVQEKMAGNDDPHFQTRATVIKEQRAELAKHHVSVLWSDYFKPPHFEKYPELHQLVNDTLKALSAAKGSKDPATGQKALDYIAQIDKIFWETKK 116
                                    13        23        33        43        53        63        73        83        93       103       113   


Chain C from PDB  Type:PROTEIN  Length:116
 aligned with SODN_STRCO | P80735 from UniProtKB/Swiss-Prot  Length:131

    Alignment length:116
                                    24        34        44        54        64        74        84        94       104       114       124      
           SODN_STRCO    15 HCDLPCGVYDPAQARIEAESVKAVQEKMAGNDDPHFQTRATVIKEQRAELAKHHVSVLWSDYFKPPHFEKYPELHQLVNDTLKALSAAKGSKDPATGQKALDYIAQIDKIFWETKK 130
               SCOP domains d3g50c_ C: automated matches                                                                                         SCOP domains
               CATH domains 3g50C00 C:1-116 Nickel-containing superoxide dismutase, NiSOD                                                        CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........hhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhh.hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------- Transcript
                 3g50 C   1 HCALPCGVYDPAQARIEAESVKAVQEKMAGNDDPHFQTRATVIKEQRAELAKHHVSVLWSDYFKPPHFEKYPELHQLVNDTLKALSAAKGSKDPATGQKALDYIAQIDKIFWETKK 116
                                    10        20        30        40        50        60        70        80        90       100       110
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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  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, 3)

Asymmetric Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 3)

Asymmetric Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3G50)

(-) Gene Ontology  (9, 9)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C   (SODN_STRCO | P80735)
molecular function
    GO:0016209    antioxidant activity    Inhibition of the reactions brought about by dioxygen (O2) or peroxides. Usually the antioxidant is effective because it can itself be more easily oxidized than the substance protected. The term is often applied to components that can trap free radicals, thereby breaking the chain reaction that normally leads to extensive biological damage.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016151    nickel cation binding    Interacting selectively and non-covalently with nickel (Ni) cations.
    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:0004784    superoxide dismutase activity    Catalysis of the reaction: 2 superoxide + 2 H+ = O2 + hydrogen peroxide.
biological process
    GO:0098869    cellular oxidant detoxification    Any process carried out at the cellular level that reduces or removes the toxicity superoxide radicals or hydrogen peroxide.
    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:0019430    removal of superoxide radicals    Any process, acting at the cellular level, involved in removing superoxide radicals (O2-) from a cell or organism, e.g. by conversion to dioxygen (O2) and hydrogen peroxide (H2O2).
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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 Related Entries

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

UniProtKB/Swiss-Prot
        SODN_STRCO | P80735: 1t6i 1t6q 1t6u 3g4x 3g4z 4ncq

(-) Related Entries Specified in the PDB File

1t6u NICKEL SUPEROXIDE DISMUTASE (NISOD) NATIVE AT 1.30 A
3g4x CRYSTAL STRUCTURE OF NISOD Y9F MUTANT AT 2.01 A
3g4z CRYSTAL STRUCTURE OF NISOD Y9F MUTANT AT 1.9 A