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(-) Description

Title :  CU-METALLOTHIONEIN FROM SACCHAROMYCES CEREVISIAE, NMR, 10 STRUCTURES
 
Authors :  C. W. Peterson, S. S. Narula, I. M. Armitage
Date :  31 Jul 97  (Deposition) - 24 Dec 97  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (10x)
Keywords :  Metallothionein, Copper Detoxification, Metal-Thiolate Cluster (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. W. Peterson, S. S. Narula, I. M. Armitage
3D Solution Structure Of Copper And Silver-Substituted Yeast Metallothioneins.
Febs Lett. V. 379 85 1996
PubMed-ID: 8566237  |  Reference-DOI: 10.1016/0014-5793(95)01492-6
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CU-METALLOTHIONEIN
    Chains: A
    Organism Common: BAKER'S YEAST
    Organism Scientific: SACCHAROMYCES CEREVISIAE
    Organism Taxid: 4932
    Strain: 2180
    Synonym: CU-MT

 Structural Features

(-) Chains, Units

  
NMR Structure (10x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 7)

NMR Structure (1, 7)
No.NameCountTypeFull Name
1CU17Ligand/IonCOPPER (I) ION

(-) Sites  (7, 7)

NMR Structure (7, 7)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:7 , CYS A:9 , CYS A:24 , CYS A:38 , CU1 A:56 , CU1 A:57 , CU1 A:60BINDING SITE FOR RESIDUE CU1 A 54
2AC2SOFTWARECYS A:9 , CYS A:11 , CYS A:14 , CYS A:36 , CU1 A:58 , CU1 A:59 , CU1 A:60BINDING SITE FOR RESIDUE CU1 A 55
3AC3SOFTWARECYS A:7 , CYS A:14 , CYS A:20 , CYS A:24 , CYS A:38 , CU1 A:54 , CU1 A:60BINDING SITE FOR RESIDUE CU1 A 56
4AC4SOFTWARECYS A:24 , SER A:25 , CYS A:26 , CYS A:38 , CU1 A:54 , CU1 A:59 , CU1 A:60BINDING SITE FOR RESIDUE CU1 A 57
5AC5SOFTWARECYS A:9 , CYS A:11 , CYS A:30 , CYS A:36 , CU1 A:55 , CU1 A:59BINDING SITE FOR RESIDUE CU1 A 58
6AC6SOFTWARECYS A:26 , CYS A:30 , CYS A:36 , CYS A:38 , CU1 A:55 , CU1 A:57 , CU1 A:58 , CU1 A:60BINDING SITE FOR RESIDUE CU1 A 59
7AC7SOFTWARECYS A:7 , CYS A:9 , CYS A:14 , CYS A:38 , CU1 A:54 , CU1 A:55 , CU1 A:56 , CU1 A:57 , CU1 A:59BINDING SITE FOR RESIDUE CU1 A 60

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1AQS)

(-) Exons   (1, 1)

NMR Structure (1, 1)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1YHR055C1YHR055C.1VIII:214720-214535186MTCU2_YEAST1-61611A:1-4040

(-) Sequences/Alignments

NMR Structure
   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:40
 aligned with MTCU1_YEAST | P0CX80 from UniProtKB/Swiss-Prot  Length:61

    Alignment length:40
                                    18        28        38        48
           MTCU1_YEAST    9 QNEGHECQCQCGSCKNNEQCQKSCSCPTGCNSDDKCPCGN 48
               SCOP domains d1aqsa_ A: Metallothionein               SCOP domains
               CATH domains 1aqsA00 A:1-40 Ag-metallothionein        CATH domains
               Pfam domains ---------------------------------------- Pfam domains
         Sec.struct. author ........................................ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------- PROSITE
                 Transcript ---------------------------------------- Transcript
                  1aqs A  1 QNEGHECQCQCGSCKNNEQCQKSCSCPTGCNSDDKCPCGN 40
                                    10        20        30        40


Chain A from PDB  Type:PROTEIN  Length:40
 aligned with MTCU2_YEAST | P0CX81 from UniProtKB/Swiss-Prot  Length:61

    Alignment length:40
                                    18        28        38        48
           MTCU2_YEAST    9 QNEGHECQCQCGSCKNNEQCQKSCSCPTGCNSDDKCPCGN 48
               SCOP domains d1aqsa_ A: Metallothionein               SCOP domains
               CATH domains 1aqsA00 A:1-40 Ag-metallothionein        CATH domains
               Pfam domains ---------------------------------------- Pfam domains
         Sec.struct. author ........................................ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------- PROSITE
               Transcript 1 Exon 1.1  PDB: A:1-40 UniProt: 1-61      Transcript 1
                  1aqs A  1 QNEGHECQCQCGSCKNNEQCQKSCSCPTGCNSDDKCPCGN 40
                                    10        20        30        40
   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, 1)

NMR Structure
(-)
Class: Small proteins (3458)

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Few Secondary Structures (1120)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (10, 20)

NMR Structure(hide GO term definitions)
Chain A   (MTCU2_YEAST | P0CX81)
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:0046870    cadmium ion binding    Interacting selectively and non-covalently with cadmium (Cd) ions.
    GO:0005507    copper ion binding    Interacting selectively and non-covalently with copper (Cu) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0004784    superoxide dismutase activity    Catalysis of the reaction: 2 superoxide + 2 H+ = O2 + hydrogen peroxide.
biological process
    GO:0071585    detoxification of cadmium ion    Any process that reduces or removes the toxicity of cadmium ion. These may include transport of cadmium away from sensitive areas and to compartments or complexes whose purpose is sequestration of cadmium ion.
    GO:0010273    detoxification of copper ion    Any process that reduces or removes the toxicity of copper ion. These include transport of copper away from sensitive areas and to compartments or complexes whose purpose is sequestration of copper ion.
    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).
    GO:0046688    response to copper ion    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a copper ion stimulus.
cellular component
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

Chain A   (MTCU1_YEAST | P0CX80)
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:0046870    cadmium ion binding    Interacting selectively and non-covalently with cadmium (Cd) ions.
    GO:0005507    copper ion binding    Interacting selectively and non-covalently with copper (Cu) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0004784    superoxide dismutase activity    Catalysis of the reaction: 2 superoxide + 2 H+ = O2 + hydrogen peroxide.
biological process
    GO:0071585    detoxification of cadmium ion    Any process that reduces or removes the toxicity of cadmium ion. These may include transport of cadmium away from sensitive areas and to compartments or complexes whose purpose is sequestration of cadmium ion.
    GO:0010273    detoxification of copper ion    Any process that reduces or removes the toxicity of copper ion. These include transport of copper away from sensitive areas and to compartments or complexes whose purpose is sequestration of copper ion.
    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).
    GO:0046688    response to copper ion    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a copper ion stimulus.
cellular component
    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)

UniProtKB/Swiss-Prot
        MTCU1_YEAST | P0CX80: 1aoo 1aqq 1aqr 1fmy 1rju
        MTCU2_YEAST | P0CX81: 1aoo 1aqq 1aqr 1fmy 1rju

(-) Related Entries Specified in the PDB File

1aqr